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1. Large-scale Cosmic-ray Anisotropies with 19 yr of Data from the Pierre Auger Observatory

Author

A. Abdul Halim, P. Abreu, M. Aglietta, I. Allekotte, K. Almeida Cheminant, A. Almela, R. Aloisio, J. Alvarez-Muñiz, A. Ambrosone, J. Ammerman Yebra, G. A. Anastasi, L. Anchordoqui, B. Andrada, L. Andrade Dourado, S. Andringa, L. Apollonio, C. Aramo, P. R. Araújo Ferreira, E. Arnone, J. C. Arteaga Velázquez, P. Assis, G. Avila, E. Avocone, A. Bakalova, F. Barbato, A. Bartz Mocellin, J. A. Bellido, C. Berat, M. E. Bertaina, G. Bhatta, M. Bianciotto, P. L. Biermann, V. Binet, K. Bismark, T. Bister, J. Biteau, J. Blazek, C. Bleve, J. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, L. Bonneau Arbeletche, N. Borodai, J. Brack, P. G. Brichetto Orchera, F. L. Briechle, A. Bueno, S. Buitink, M. Buscemi, M. Büsken, A. Bwembya, K. S. Caballero-Mora, S. Cabana-Freire, L. Caccianiga, F. Campuzano, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, B. Čermáková, A. Cermenati, J. A. Chinellato, J. Chudoba, L. Chytka, R. W. Clay, A. C. Cobos Cerutti, R. Colalillo, R. Conceição, A. Condorelli, G. Consolati, M. Conte, F. Convenga, D. Correia dos Santos, P. J. Costa, C. E. Covault, M. Cristinziani, C. S. Cruz Sanchez, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de Almeida, B. de Errico, J. de Jesús, S. J. de Jong, J. R. T. de Mello Neto, I. De Mitri, J. de Oliveira, D. de Oliveira Franco, F. de Palma, V. de Souza, E. De Vito, A. Del Popolo, O. Deligny, N. Denner, L. Deval, A. di Matteo, C. Dobrigkeit, J. C. D’Olivo, L. M. Domingues Mendes, Q. Dorosti, J. C. dos Anjos, R. C. dos Anjos, J. Ebr, F. Ellwanger, M. Emam, R. Engel, I. Epicoco, M. Erdmann, A. Etchegoyen, C. Evoli, H. Falcke, G. Farrar, A. C. Fauth, T. Fehler, F. Feldbusch, A. Fernandes, B. Fick, J. M. Figueira, P. Filip, A. Filipčič, T. Fitoussi, B. Flaggs, T. Fodran, M. Freitas, T. Fujii, A. Fuster, C. Galea, B. García, C. Gaudu, P. L. Ghia, U. Giaccari, F. Gobbi, F. Gollan, G. Golup, M. Gómez Berisso, P. F. Gómez Vitale, J. P. Gongora, J. M. González, N. González, D. Góra, A. Gorgi, M. Gottowik, F. Guarino, G. P. Guedes, E. Guido, L. Gülzow, S. Hahn, P. Hamal, M. R. Hampel, P. Hansen, V. M. Harvey, A. Haungs, T. Hebbeker, C. Hojvat, J. R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, A. Insolia, P. G. Isar, P. Janecek, V. Jilek, J. Jurysek, K.-H. Kampert, B. Keilhauer, A. Khakurdikar, V. V. Kizakke Covilakam, H. O. Klages, M. Kleifges, F. Knapp, J. Köhler, F. Krieger, M. Kubatova, N. Kunka, B. L. Lago, N. Langner, M. A. Leigui de Oliveira, Y. Lema-Capeans, A. Letessier-Selvon, I. Lhenry-Yvon, L. Lopes, J. P. Lundquist, A. Machado Payeras, D. Mandat, B. C. Manning, P. Mantsch, F. M. Mariani, A. G. Mariazzi, I. C. Mariş, G. Marsella, D. Martello, S. Martinelli, O. Martínez Bravo, M. A. Martins, H.-J. Mathes, J. Matthews, G. Matthiae, E. Mayotte, S. Mayotte, P. O. Mazur, G. Medina-Tanco, J. Meinert, D. Melo, A. Menshikov, C. Merx, S. Michal, M. I. Micheletti, L. Miramonti, S. Mollerach, F. Montanet, L. Morejon, K. Mulrey, R. Mussa, W. M. Namasaka, S. Negi, L. Nellen, K. Nguyen, G. Nicora, M. Niechciol, D. Nitz, D. Nosek, V. Novotny, L. Nožka, A. Nucita, L. A. Núñez, C. Oliveira, M. Palatka, J. Pallotta, S. Panja, G. Parente, T. Paulsen, J. Pawlowsky, M. Pech, J. Pȩkala, R. Pelayo, V. Pelgrims, L. A. S. Pereira, E. E. Pereira Martins, C. Pérez Bertolli, L. Perrone, S. Petrera, C. Petrucci, T. Pierog, M. Pimenta, M. Platino, B. Pont, M. Pothast, M. Pourmohammad Shahvar, P. Privitera, M. Prouza, S. Querchfeld, J. Rautenberg, D. Ravignani, J. V. Reginatto Akim, A. Reuzki, J. Ridky, F. Riehn, M. Risse, V. Rizi, E. Rodriguez, J. Rodriguez Rojo, M. J. Roncoroni, S. Rossoni, M. Roth, E. Roulet, A. C. Rovero, A. Saftoiu, M. Saharan, F. Salamida, H. Salazar, G. Salina, P. Sampathkumar, J. D. Sanabria Gomez, F. Sánchez, E. M. Santos, E. Santos, F. Sarazin, R. Sarmento, R. Sato, C. M. Schäfer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, D. Schmidt, O. Scholten, H. Schoorlemmer, P. Schovánek, F. G. Schröder, J. Schulte, T. Schulz, S. J. Sciutto, M. Scornavacche, A. Sedoski, A. Segreto, S. Sehgal, S. U. Shivashankara, G. Sigl, K. Simkova, F. Simon, R. Šmída, P. Sommers, R. Squartini, M. Stadelmaier, S. Stanič, J. Stasielak, P. Stassi, S. Strähnz, M. Straub, T. Suomijärvi, A. D. Supanitsky, Z. Svozilikova, Z. Szadkowski, F. Tairli, A. Tapia, C. Taricco, C. Timmermans, O. Tkachenko, P. Tobiska, C. J. Todero Peixoto, B. Tomé, Z. Torrès, A. Travaini, P. Travnicek, M. Tueros, M. Unger, R. Uzeiroska, L. Vaclavek, M. Vacula, J. F. Valdés Galicia, L. Valore, E. Varela, V. Vašíčková, A. Vásquez-Ramírez, D. Veberič, I. D. Vergara Quispe, V. Verzi, J. Vicha, J. Vink, S. Vorobiov, C. Watanabe, A. A. Watson, A. Weindl, M. Weitz, L. Wiencke, H. Wilczyński, D. Wittkowski, B. Wundheiler, B. Yue, A. Yushkov, O. Zapparrata, E. Zas, D. Zavrtanik, M. Zavrtanik, and The Pierre Auger Collaboration

Subjects
Ultra-high-energy cosmic radiation, Astrophysics, QB460-466
Abstract

Results are presented for the measurement of large-scale anisotropies in the arrival directions of ultra–high-energy cosmic rays detected at the Pierre Auger Observatory during 19 yr of operation, prior to AugerPrime, the upgrade of the observatory. The 3D dipole amplitude and direction are reconstructed above 4 EeV in four energy bins. Besides the established dipolar anisotropy in R.A. above 8 EeV, the Fourier amplitude of the 8–16 EeV energy bin is now also above the 5 σ discovery level. No time variation of the dipole moment above 8 EeV is found, setting an upper limit to the rate of change of such variations of 0.3% yr ^−1 at the 95% confidence level. Additionally, the results for the angular power spectrum are shown, demonstrating no other statistically significant multipoles. The results for the equatorial dipole component down to 0.03 EeV are presented, using for the first time a data set obtained with a trigger that has been optimized for lower energies. Finally, model predictions are discussed and compared with observations, based on two source emission scenarios obtained in the combined fit of spectrum and composition above 0.6 EeV.

Published
2024
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2. The energy spectrum of cosmic rays beyond the turn-down around $$\varvec{10^{17}}$$ 10 17 eV as measured with the surface detector of the Pierre Auger Observatory

Author

P. Abreu, M. Aglietta, J. M. Albury, I. Allekotte, A. Almela, J. Alvarez-Muñiz, R. Alves Batista, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, P. R. Araújo Ferreira, J. C. Arteaga Velázquez, H. Asorey, P. Assis, G. Avila, A. M. Badescu, A. Bakalova, A. Balaceanu, F. Barbato, R. J. Barreira Luz, K. H. Becker, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, P. L. Biermann, P. Billoir, V. Binet, K. Bismark, T. Bister, J. Biteau, J. Blazek, C. Bleve, M. Boháčová, D. Boncioli, C. Bonifazi, L. Bonneau Arbeletche, N. Borodai, A. M. Botti, J. Brack, T. Bretz, P. G. Brichetto Orchera, F. L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, M. Büsken, K. S. Caballero-Mora, L. Caccianiga, F. Canfora, I. Caracas, J. M. Carceller, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, J. A. Chinellato, J. Chudoba, L. Chytka, R. W. Clay, A. C. Cobos Cerutti, R. Colalillo, A. Coleman, M. R. Coluccia, R. Conceição, A. Condorelli, G. Consolati, F. Contreras, F. Convenga, D. Correia dos Santos, C. E. Covault, S. Dasso, K. Daumiller, B. R. Dawson, J. A. Day, R. M. de Almeida, J. de Jesús, S. J. de Jong, G. De Mauro, J. R. T. de Mello Neto, I. De Mitri, J. de Oliveira, D. de Oliveira Franco, F. de Palma, V. de Souza, E. De Vito, M. del Río, O. Deligny, A. Di Matteo, C. Dobrigkeit, J. C. D’Olivo, L. M. Domingues Mendes, R. C. dos Anjos, D. dos Santos, M. T. Dova, J. Ebr, R. Engel, I. Epicoco, M. Erdmann, C. O. Escobar, A. Etchegoyen, H. Falcke, J. Farmer, G. Farrar, A. C. Fauth, N. Fazzini, F. Feldbusch, F. Fenu, B. Fick, J. M. Figueira, A. Filipčič, T. Fitoussi, T. Fodran, M. M. Freire, T. Fujii, A. Fuster, C. Galea, C. Galelli, B. García, A. L. Garcia Vegas, H. Gemmeke, F. Gesualdi, A. Gherghel-Lascu, P. L. Ghia, U. Giaccari, M. Giammarchi, J. Glombitza, F. Gobbi, F. Gollan, G. Golup, M. Gómez Berisso, P. F. Gómez Vitale, J. P. Gongora, J. M. González, N. González, I. Goos, D. Góra, A. Gorgi, M. Gottowik, T. D. Grubb, F. Guarino, G. P. Guedes, E. Guido, S. Hahn, P. Hamal, M. R. Hampel, P. Hansen, D. Harari, V. M. Harvey, A. Haungs, T. Hebbeker, D. Heck, G. C. Hill, C. Hojvat, J. R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, A. Insolia, P. G. Isar, P. Janecek, J. A. Johnsen, J. Jurysek, A. Kääpä, K. H. Kampert, N. Karastathis, B. Keilhauer, J. Kemp, A. Khakurdikar, V. V. Kizakke Covilakam, H. O. Klages, M. Kleifges, J. Kleinfeller, M. Köpke, N. Kunka, B. L. Lago, R. G. Lang, N. Langner, M. A. Leigui de Oliveira, V. Lenok, A. Letessier-Selvon, I. Lhenry-Yvon, D. Lo Presti, L. Lopes, R. López, L. Lu, Q. Luce, J. P. Lundquist, A. Machado Payeras, G. Mancarella, D. Mandat, B. C. Manning, J. Manshanden, P. Mantsch, S. Marafico, A. G. Mariazzi, I. C. Mariş, G. Marsella, D. Martello, S. Martinelli, H. Martinez, O. Martínez Bravo, M. Mastrodicasa, H. J. Mathes, J. Matthews, G. Matthiae, E. Mayotte, P. O. Mazur, G. Medina-Tanco, D. Melo, A. Menshikov, K.-D. Merenda, S. Michal, M. I. Micheletti, L. Miramonti, D. Mockler, S. Mollerach, F. Montanet, C. Morello, M. Mostafá, A. L. Müller, M. A. Muller, K. Mulrey, R. Mussa, M. Muzio, W. M. Namasaka, A. Nasr-Esfahani, L. Nellen, M. Niculescu-Oglinzanu, M. Niechciol, D. Nitz, D. Nosek, V. Novotny, L. Nožka, A. Nucita, L. A. Núñez, M. Palatka, J. Pallotta, P. Papenbreer, G. Parente, A. Parra, J. Pawlowsky, M. Pech, F. Pedreira, J. Pȩkala, R. Pelayo, J. Peña-Rodriguez, E. E. Pereira Martins, J. Perez Armand, C. Pérez Bertolli, M. Perlin, L. Perrone, S. Petrera, T. Pierog, M. Pimenta, V. Pirronello, M. Platino, B. Pont, M. Pothast, P. Privitera, M. Prouza, A. Puyleart, S. Querchfeld, J. Rautenberg, D. Ravignani, M. Reininghaus, J. Ridky, F. Riehn, M. Risse, V. Rizi, W. Rodrigues de Carvalho, J. Rodriguez Rojo, M. J. Roncoroni, M. Roth, E. Roulet, A. C. Rovero, P. Ruehl, S. J. Saffi, A. Saftoiu, F. Salamida, H. Salazar, G. Salina, J. D. Sanabria Gomez, F. Sánchez, E. M. Santos, E. Santos, F. Sarazin, R. Sarmento, C. Sarmiento-Cano, R. Sato, P. Savina, C. M. Schäfer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, F. Schlüter, D. Schmidt, O. Scholten, P. Schovánek, F. G. Schröder, S. Schröder, J. Schulte, A. Schulz, S. J. Sciutto, M. Scornavacche, A. Segreto, S. Sehgal, R. C. Shellard, G. Sigl, G. Silli, O. Sima, R. Šmída, P. Sommers, J. F. Soriano, J. Souchard, R. Squartini, M. Stadelmaier, D. Stanca, S. Stanič, J. Stasielak, P. Stassi, A. Streich, M. Suárez-Durán, T. Sudholz, T. Suomijärvi, A. D. Supanitsky, Z. Szadkowski, A. Tapia, C. Taricco, C. Timmermans, O. Tkachenko, P. Tobiska, C. J. Todero Peixoto, B. Tomé, Z. Torrès, A. Travaini, P. Travnicek, C. Trimarelli, M. Tueros, R. Ulrich, M. Unger, L. Vaclavek, M. Vacula, J. F. Valdés Galicia, L. Valore, E. Varela, A. Vásquez-Ramírez, D. Veberič, C. Ventura, I. D. Vergara Quispe, V. Verzi, J. Vicha, J. Vink, S. Vorobiov, H. Wahlberg, C. Watanabe, A. A. Watson, M. Weber, A. Weindl, L. Wiencke, H. Wilczyński, M. Wirtz, D. Wittkowski, B. Wundheiler, A. Yushkov, O. Zapparrata, E. Zas, D. Zavrtanik, M. Zavrtanik, L. Zehrer, and Pierre Auger Collaboration

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract We present a measurement of the cosmic-ray spectrum above 100 PeV using the part of the surface detector of the Pierre Auger Observatory that has a spacing of 750 m. An inflection of the spectrum is observed, confirming the presence of the so-called second-knee feature. The spectrum is then combined with that of the 1500 m array to produce a single measurement of the flux, linking this spectral feature with the three additional breaks at the highest energies. The combined spectrum, with an energy scale set calorimetrically via fluorescence telescopes and using a single detector type, results in the most statistically and systematically precise measurement of spectral breaks yet obtained. These measurements are critical for furthering our understanding of the highest energy cosmic rays.

Published
2021
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3. Direct measurement of the muonic content of extensive air showers between $$\mathbf { 2\times 10^{17}}$$ 2×1017 and $$\mathbf {2\times 10^{18}}~$$ 2×1018 eV at the Pierre Auger Observatory

Author

A. Aab, P. Abreu, M. Aglietta, J. M. Albury, I. Allekotte, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, P. R. Araújo Ferreira, H. Asorey, P. Assis, G. Avila, A. M. Badescu, A. Bakalova, A. Balaceanu, F. Barbato, R. J. Barreira Luz, K. H. Becker, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, P. L. Biermann, T. Bister, J. Biteau, A. Blanco, J. Blazek, C. Bleve, M. Boháčová, D. Boncioli, C. Bonifazi, L. Bonneau Arbeletche, N. Borodai, A. M. Botti, J. Brack, T. Bretz, F. L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, K. S. Caballero-Mora, L. Caccianiga, L. Calcagni, A. Cancio, F. Canfora, I. Caracas, J. M. Carceller, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, J. A. Chinellato, K. Choi, J. Chudoba, L. Chytka, R. W. Clay, A. C. Cobos Cerutti, R. Colalillo, A. Coleman, M. R. Coluccia, R. Conceição, A. Condorelli, G. Consolati, F. Contreras, F. Convenga, C. E. Covault, S. Dasso, K. Daumiller, B. R. Dawson, J. A. Day, R. M. de Almeida, J. de Jesús, S. J. de Jong, G. De Mauro, J. R. T. de Mello Neto, I. De Mitri, J. de Oliveira, D. de Oliveira Franco, V. de Souza, J. Debatin, M. del Río, O. Deligny, N. Dhital, A. Di Matteo, M. L. Díaz Castro, C. Dobrigkeit, J. C. D’Olivo, Q. Dorosti, R. C. dos Anjos, M. T. Dova, J. Ebr, R. Engel, I. Epicoco, M. Erdmann, C. O. Escobar, A. Etchegoyen, H. Falcke, J. Farmer, G. Farrar, A. C. Fauth, N. Fazzini, F. Feldbusch, F. Fenu, B. Fick, J. M. Figueira, A. Filipčič, M. M. Freire, T. Fujii, A. Fuster, C. Galea, C. Galelli, B. García, A. L. Garcia Vegas, H. Gemmeke, F. Gesualdi, A. Gherghel-Lascu, P. L. Ghia, U. Giaccari, M. Giammarchi, M. Giller, J. Glombitza, F. Gobbi, G. Golup, M. Gómez Berisso, P. F. Gómez Vitale, J. P. Gongora, N. González, I. Goos, D. Góra, A. Gorgi, M. Gottowik, T. D. Grubb, F. Guarino, G. P. Guedes, E. Guido, S. Hahn, R. Halliday, M. R. Hampel, P. Hansen, D. Harari, V. M. Harvey, A. Haungs, T. Hebbeker, D. Heck, G. C. Hill, C. Hojvat, J. R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, J. Hulsman, A. Insolia, P. G. Isar, J. A. Johnsen, J. Jurysek, A. Kääpä, K. H. Kampert, B. Keilhauer, J. Kemp, H. O. Klages, M. Kleifges, J. Kleinfeller, M. Köpke, G. Kukec Mezek, B. L. Lago, D. LaHurd, R. G. Lang, M. A. Leigui de Oliveira, V. Lenok, A. Letessier-Selvon, I. Lhenry-Yvon, D. Lo Presti, L. Lopes, R. López, A. López Casado, R. Lorek, Q. Luce, A. Lucero, A. Machado Payeras, M. Malacari, G. Mancarella, D. Mandat, B. C. Manning, J. Manshanden, P. Mantsch, A. G. Mariazzi, I. C. Mariş, G. Marsella, D. Martello, H. Martinez, O. Martínez Bravo, M. Mastrodicasa, H. J. Mathes, J. Matthews, G. Matthiae, E. Mayotte, P. O. Mazur, G. Medina-Tanco, D. Melo, A. Menshikov, K.-D. Merenda, S. Michal, M. I. Micheletti, L. Miramonti, D. Mockler, S. Mollerach, F. Montanet, C. Morello, M. Mostafá, A. L. Müller, M. A. Muller, S. Müller, R. Mussa, M. Muzio, W. M. Namasaka, L. Nellen, M. Niculescu-Oglinzanu, M. Niechciol, D. Nitz, D. Nosek, V. Novotny, L. Nožka, A Nucita, L. A. Núñez, M. Palatka, J. Pallotta, M. P. Panetta, P. Papenbreer, G. Parente, A. Parra, M. Pech, F. Pedreira, J. Pȩkala, R. Pelayo, J. Peña-Rodriguez, J. Perez Armand, M. Perlin, L. Perrone, C. Peters, S. Petrera, T. Pierog, M. Pimenta, V. Pirronello, M. Platino, B. Pont, M. Pothast, P. Privitera, M. Prouza, A. Puyleart, S. Querchfeld, J. Rautenberg, D. Ravignani, M. Reininghaus, J. Ridky, F. Riehn, M. Risse, P. Ristori, V. Rizi, W. Rodrigues de Carvalho, J. Rodriguez Rojo, M. J. Roncoroni, M. Roth, E. Roulet, A. C. Rovero, P. Ruehl, S. J. Saffi, A. Saftoiu, F. Salamida, H. Salazar, G. Salina, J. D. Sanabria Gomez, F. Sánchez, E. M. Santos, E. Santos, F. Sarazin, R. Sarmento, C. Sarmiento-Cano, R. Sato, P. Savina, C. Schäfer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, F. Schlüter, D. Schmidt, O. Scholten, P. Schovánek, F. G. Schröder, S. Schröder, S. J. Sciutto, M. Scornavacche, R. C. Shellard, G. Sigl, G. Silli, O. Sima, R. Šmída, P. Sommers, J. F. Soriano, J. Souchard, R. Squartini, M. Stadelmaier, D. Stanca, S. Stanič, J. Stasielak, P. Stassi, A. Streich, M. Suárez-Durán, T. Sudholz, T. Suomijärvi, A. D. Supanitsky, J. Šupík, Z. Szadkowski, A. Taboada, O. A. Taborda, A. Tapia, C. Timmermans, P. Tobiska, C. J. Todero Peixoto, B. Tomé, G. Torralba Elipe, A. Travaini, P. Travnicek, C. Trimarelli, M. Trini, M. Tueros, R. Ulrich, M. Unger, M. Urban, L. Vaclavek, J. F. Valdés Galicia, I. Valiño, L. Valore, A. van Vliet, E. Varela, B. Vargas Cárdenas, A. Vásquez-Ramírez, D. Veberič, C. Ventura, I. D. Vergara Quispe, V. Verzi, J. Vicha, L. Villaseñor, J. Vink, S. Vorobiov, H. Wahlberg, A. A. Watson, M. Weber, A. Weindl, L. Wiencke, H. Wilczyński, T. Winchen, M. Wirtz, D. Wittkowski, B. Wundheiler, A. Yushkov, O. Zapparrata, E. Zas, D. Zavrtanik, M. Zavrtanik, L. Zehrer, A. Zepeda, M. Ziolkowski, F. Zuccarello, and The Pierre Auger Collaboration

Subjects
Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract

Abstract The hybrid design of the Pierre Auger Observatory allows for the measurement of the properties of extensive air showers initiated by ultra-high energy cosmic rays with unprecedented precision. By using an array of prototype underground muon detectors, we have performed the first direct measurement, by the Auger Collaboration, of the muon content of air showers between $$2\times 10^{17}$$ 2×1017 and $$2\times 10^{18}$$ 2×1018 eV. We have studied the energy evolution of the attenuation-corrected muon density, and compared it to predictions from air shower simulations. The observed densities are found to be larger than those predicted by models. We quantify this discrepancy by combining the measurements from the muon detector with those from the Auger fluorescence detector at $$10^{{17.5}}\, {\mathrm{eV}} $$ 1017.5eV and $$10^{{18}}\, {\mathrm{eV}} $$ 1018eV . We find that, for the models to explain the data, an increase in the muon density of $$38\%$$ 38% $$\pm 4\% (12\%)$$ ±4%(12%) $$\pm {}^{21\%}_{18\%}$$ ±18%21% for EPOS-LHC, and of $$50\% (53\%)$$ 50%(53%) $$\pm 4\% (13\%)$$ ±4%(13%) $$\pm {}^{23\%}_{20\%}$$ ±20%23% for QGSJetII-04, is respectively needed.

Published
2020
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4. Observations of the Crab Nebula and Pulsar with the Large-sized Telescope Prototype of the Cherenkov Telescope Array

Author

H. Abe, K. Abe, S. Abe, A. Aguasca-Cabot, I. Agudo, N. Alvarez Crespo, L. A. Antonelli, C. Aramo, A. Arbet-Engels, C. Arcaro, M. Artero, K. Asano, P. Aubert, A. Baktash, A. Bamba, A. Baquero Larriva, L. Baroncelli, U. Barres de Almeida, J. A. Barrio, I. Batkovic, J. Baxter, J. Becerra González, E. Bernardini, M. I. Bernardos, J. Bernete Medrano, A. Berti, P. Bhattacharjee, N. Biederbeck, C. Bigongiari, E. Bissaldi, O. Blanch, G. Bonnoli, P. Bordas, A. Borghese, A. Bulgarelli, I. Burelli, M. Buscemi, M. Cardillo, S. Caroff, A. Carosi, F. Cassol, D. Cauz, G. Ceribella, Y. Chai, K. Cheng, A. Chiavassa, M. Chikawa, L. Chytka, A. Cifuentes, J. L. Contreras, J. Cortina, H. Costantini, G. D’Amico, M. Dalchenko, A. De Angelis, M. de Bony de Lavergne, B. De Lotto, R. de Menezes, G. Deleglise, C. Delgado, J. Delgado Mengual, D. della Volpe, M. Dellaiera, D. Depaoli, A. Di Piano, F. Di Pierro, R. Di Tria, L. Di Venere, C. Díaz, R. M. Dominik, D. Dominis Prester, A. Donini, D. Dorner, M. Doro, D. Elsässer, G. Emery, J. Escudero, V. Fallah Ramazani, G. Ferrara, F. Ferrarotto, A. Fiasson, L. Freixas Coromina, S. Fröse, S. Fukami, Y. Fukazawa, E. Garcia, R. Garcia López, C. Gasbarra, D. Gasparrini, F. Geyer, J. Giesbrecht Paiva, N. Giglietto, F. Giordano, E. Giro, P. Gliwny, N. Godinovic, R. Grau, D. Green, J. Green, S. Gunji, J. Hackfeld, D. Hadasch, A. Hahn, K. Hashiyama, T. Hassan, K. Hayashi, L. Heckmann, M. Heller, J. Herrera Llorente, K. Hirotani, D. Hoffmann, D. Horns, J. Houles, M. Hrabovsky, D. Hrupec, D. Hui, M. Hütten, M. Iarlori, R. Imazawa, T. Inada, Y. Inome, K. Ioka, M. Iori, K. Ishio, Y. Iwamura, M. Jacquemont, I. Jimenez Martinez, J. Jurysek, M. Kagaya, V. Karas, H. Katagiri, J. Kataoka, D. Kerszberg, Y. Kobayashi, A. Kong, H. Kubo, J. Kushida, M. Lainez, G. Lamanna, A. Lamastra, T. Le Flour, M. Linhoff, F. Longo, R. López-Coto, M. López-Moya, A. López-Oramas, S. Loporchio, A. Lorini, P. L. Luque-Escamilla, P. Majumdar, M. Makariev, D. Mandat, M. Manganaro, G. Manicò, K. Mannheim, M. Mariotti, P. Marquez, G. Marsella, J. Martí, O. Martinez, G. Martínez, M. Martínez, P. Marusevec, A. Mas-Aguilar, G. Maurin, D. Mazin, E. Mestre Guillen, S. Micanovic, D. Miceli, T. Miener, J. M. Miranda, R. Mirzoyan, T. Mizuno, M. Molero Gonzalez, E. Molina, T. Montaruli, I. Monteiro, A. Moralejo, D. Morcuende, A. Morselli, K. Mrakovcic, K. Murase, A. Nagai, S. Nagataki, T. Nakamori, L. Nickel, M. Nievas, K. Nishijima, K. Noda, D. Nosek, S. Nozaki, M. Ohishi, Y. Ohtani, T. Oka, N. Okazaki, A. Okumura, R. Orito, J. Otero-Santos, M. Palatiello, D. Paneque, F. R. Pantaleo, R. Paoletti, J. M. Paredes, M. Pech, M. Pecimotika, M. Peresano, A. Pérez, E. Pietropaolo, G. Pirola, C. Plard, F. Podobnik, V. Poireau, M. Polo, E. Pons, E. Prandini, J. Prast, G. Principe, C. Priyadarshi, M. Prouza, R. Rando, W. Rhode, M. Ribó, V. Rizi, G. Rodriguez Fernandez, J. E. Ruiz, T. Saito, S. Sakurai, D. A. Sanchez, T. Šarić, Y. Sato, F. G. Saturni, B. Schleicher, F. Schmuckermaier, J. L. Schubert, F. Schussler, T. Schweizer, M. Seglar Arroyo, R. Silvia, J. Sitarek, V. Sliusar, A. Spolon, J. Strišković, M. Strzys, Y. Suda, Y. Sunada, H. Tajima, H. Takahashi, M. Takahashi, J. Takata, R. Takeishi, P. H. T. Tam, S. J. Tanaka, D. Tateishi, L. A. Tejedor, P. Temnikov, Y. Terada, K. Terauchi, T. Terzic, M. Teshima, M. Tluczykont, F. Tokanai, D. F. Torres, P. Travnicek, S. Truzzi, A. Tutone, G. Uhlrich, M. Vacula, P. Vallania, J. van Scherpenberg, M. Vázquez Acosta, V. Verguilov, I. Viale, A. Vigliano, C. F. Vigorito, V. Vitale, G. Voutsinas, I. Vovk, T. Vuillaume, R. Walter, M. Will, T. Yamamoto, R. Yamazaki, T. Yoshida, T. Yoshikoshi, N. Zywucka, K. Bernlöhr, O. Gueta, K. Kosack, G. Maier, and J. Watson

Subjects
Gamma-ray astronomy, Gamma-ray sources, Astronomy data analysis, Pulsar wind nebulae, Pulsars, Astrophysics, QB460-466
Abstract

The Cherenkov Telescope Array (CTA) is a next-generation ground-based observatory for gamma-ray astronomy at very high energies. The Large-Sized Telescope prototype (LST-1) is located at the CTA-North site, on the Canary Island of La Palma. LSTs are designed to provide optimal performance in the lowest part of the energy range covered by CTA, down to ≃20 GeV. LST-1 started performing astronomical observations in 2019 November, during its commissioning phase, and it has been taking data ever since. We present the first LST-1 observations of the Crab Nebula, the standard candle of very-high-energy gamma-ray astronomy, and use them, together with simulations, to assess the performance of the telescope. LST-1 has reached the expected performance during its commissioning period—only a minor adjustment of the preexisting simulations was needed to match the telescope’s behavior. The energy threshold at trigger level is around 20 GeV, rising to ≃30 GeV after data analysis. Performance parameters depend strongly on energy, and on the strength of the gamma-ray selection cuts in the analysis: angular resolution ranges from 0.°12–0.°40, and energy resolution from 15%–50%. Flux sensitivity is around 1.1% of the Crab Nebula flux above 250 GeV for a 50 hr observation (12% for 30 minutes). The spectral energy distribution (in the 0.03–30 TeV range) and the light curve obtained for the Crab Nebula agree with previous measurements, considering statistical and systematic uncertainties. A clear periodic signal is also detected from the pulsar at the center of the Nebula.

Published
2023
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5. Search for Ultra-high-energy Photons from Gravitational Wave Sources with the Pierre Auger Observatory

Author

A. Abdul Halim, P. Abreu, M. Aglietta, I. Allekotte, K. Almeida Cheminant, A. Almela, J. Alvarez-Muñiz, J. Ammerman Yebra, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, P. R. Araújo Ferreira, E. Arnone, J. C. Arteaga Velázquez, H. Asorey, P. Assis, G. Avila, E. Avocone, A. M. Badescu, A. Bakalova, A. Balaceanu, F. Barbato, J. A. Bellido, C. Berat, M. E. Bertaina, G. Bhatta, P. L. Biermann, V. Binet, K. Bismark, T. Bister, J. Biteau, J. Blazek, C. Bleve, J. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, L. Bonneau Arbeletche, N. Borodai, J. Brack, T. Bretz, P. G. Brichetto Orchera, F. L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, M. Büsken, A. Bwembya, K. S. Caballero-Mora, L. Caccianiga, I. Caracas, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, J. A. Chinellato, J. Chudoba, L. Chytka, R. W. Clay, A. C. Cobos Cerutti, R. Colalillo, A. Coleman, M. R. Coluccia, R. Conceiçao, A. Condorelli, G. Consolati, M. Conte, F. Contreras, F. Convenga, D. Correia dos Santos, P. J. Costa, C. E. Covault, M. Cristinziani, C. S. Cruz Sanchez, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de Almeida, J. de Jesús, S. J. de Jong, J. R. T. de Mello Neto, I. De Mitri, J. de Oliveira, D. de Oliveira Franco, F. de Palma, V. de Souza, E. De Vito, A. Del Popolo, O. Deligny, L. Deval, A. di Matteo, M. Dobre, C. Dobrigkeit, J. C. D’Olivo, L. M. Domingues Mendes, R. C. dos Anjos, J. Ebr, M. Emam, R. Engel, I. Epicoco, M. Erdmann, A. Etchegoyen, H. Falcke, J. Farmer, G. Farrar, A. C. Fauth, N. Fazzini, F. Feldbusch, F. Fenu, A. Fernandes, B. Fick, J. M. Figueira, A. Filipčič, T. Fitoussi, B. Flaggs, T. Fodran, T. Fujii, A. Fuster, C. Galea, C. Galelli, B. García, H. Gemmeke, F. Gesualdi, A. Gherghel-Lascu, P. L. Ghia, U. Giaccari, M. Giammarchi, J. Glombitza, F. Gobbi, F. Gollan, G. Golup, M. Gómez Berisso, P. F. Gómez Vitale, J. P. Gongora, J. M. González, N. González, I. Goos, D. Góra, A. Gorgi, M. Gottowik, T. D. Grubb, F. Guarino, G. P. Guedes, E. Guido, S. Hahn, P. Hamal, M. R. Hampel, P. Hansen, D. Harari, V. M. Harvey, A. Haungs, T. Hebbeker, D. Heck, C. Hojvat, J. R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, A. Insolia, P. G. Isar, P. Janecek, J. A. Johnsen, J. Jurysek, A. Kääpä, K. H. Kampert, B. Keilhauer, A. Khakurdikar, V. V. Kizakke Covilakam, H. O. Klages, M. Kleifges, J. Kleinfeller, F. Knapp, N. Kunka, B. L. Lago, N. Langner, M. A. Leigui de Oliveira, V. Lenok, A. Letessier-Selvon, I. Lhenry-Yvon, D. Lo Presti, L. Lopes, R. López, L. Lu, Q. Luce, J. P. Lundquist, A. Machado Payeras, M. Majercakova, D. Mandat, B. C. Manning, J. Manshanden, P. Mantsch, S. Marafico, F. M. Mariani, A. G. Mariazzi, I. C. Mariş, G. Marsella, D. Martello, S. Martinelli, O. Martínez Bravo, M. A. Martins, M. Mastrodicasa, H. J. Mathes, J. Matthews, G. Matthiae, E. Mayotte, S. Mayotte, P. O. Mazur, G. Medina-Tanco, J. Meinert, D. Melo, A. Menshikov, S. Michal, M. I. Micheletti, L. Miramonti, S. Mollerach, F. Montanet, L. Morejon, C. Morello, A. L. Müller, K. Mulrey, R. Mussa, M. Muzio, W. M. Namasaka, A. Nasr-Esfahani, L. Nellen, G. Nicora, M. Niculescu-Oglinzanu, M. Niechciol, D. Nitz, I. Norwood, D. Nosek, V. Novotny, L. Nožka, A. Nucita, L. A. Núñez, C. Oliveira, M. Palatka, J. Pallotta, G. Parente, A. Parra, J. Pawlowsky, M. Pech, J. Pȩkala, R. Pelayo, L. A. S. Pereira, E. E. Pereira Martins, J. Perez Armand, C. Pérez Bertolli, L. Perrone, S. Petrera, C. Petrucci, T. Pierog, M. Pimenta, M. Platino, B. Pont, M. Pothast, M. Pourmohammad Shavar, P. Privitera, M. Prouza, A. Puyleart, S. Querchfeld, J. Rautenberg, D. Ravignani, M. Reininghaus, J. Ridky, F. Riehn, M. Risse, V. Rizi, W. Rodrigues de Carvalho, J. Rodriguez Rojo, M. J. Roncoroni, S. Rossoni, M. Roth, E. Roulet, A. C. Rovero, P. Ruehl, A. Saftoiu, M. Saharan, F. Salamida, H. Salazar, G. Salina, J. D. Sanabria Gomez, F. Sánchez, E. M. Santos, E. Santos, F. Sarazin, R. Sarmento, R. Sato, P. Savina, C. M. Schäfer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, F. Schlüter, D. Schmidt, O. Scholten, H. Schoorlemmer, P. Schovánek, F. G. Schröder, J. Schulte, T. Schulz, S. J. Sciutto, M. Scornavacche, A. Segreto, S. Sehgal, S. U. Shivashankara, G. Sigl, G. Silli, O. Sima, R. Smau, R. Šmída, P. Sommers, J. F. Soriano, R. Squartini, M. Stadelmaier, D. Stanca, S. Stanič, J. Stasielak, P. Stassi, M. Straub, A. Streich, M. Suárez-Durán, T. Suomijärvi, A. D. Supanitsky, Z. Szadkowski, A. Tapia, C. Taricco, C. Timmermans, O. Tkachenko, P. Tobiska, C. J. Todero Peixoto, B. Tomé, Z. Torrès, A. Travaini, P. Travnicek, C. Trimarelli, M. Tueros, R. Ulrich, M. Unger, L. Vaclavek, M. Vacula, J. F. Valdés Galicia, L. Valore, E. Varela, A. Vásquez-Ramírez, D. Veberič, C. Ventura, I. D. Vergara Quispe, V. Verzi, J. Vicha, J. Vink, S. Vorobiov, C. Watanabe, A. A. Watson, A. Weindl, L. Wiencke, H. Wilczyński, D. Wittkowski, B. Wundheiler, A. Yushkov, O. Zapparrata, E. Zas, D. Zavrtanik, M. Zavrtanik, and The Pierre Auger Collaboration

Subjects
Particle astrophysics, Ultra-high-energy cosmic radiation, Cosmic ray showers, Gravitational wave sources, Transient sources, Astrophysics, QB460-466
Abstract

A search for time-directional coincidences of ultra-high-energy (UHE) photons above 10 EeV with gravitational wave (GW) events from the LIGO/Virgo runs O1 to O3 is conducted with the Pierre Auger Observatory. Due to the distinctive properties of photon interactions and to the background expected from hadronic showers, a subset of the most interesting GW events is selected based on their localization quality and distance. Time periods of 1000 s around and 1 day after the GW events are analyzed. No coincidences are observed. Upper limits on the UHE photon fluence from a GW event are derived that are typically at ∼7 MeV cm ^−2 (time period 1000 s) and ∼35 MeV cm ^−2 (time period 1 day). Due to the proximity of the binary neutron star merger GW170817, the energy of the source transferred into UHE photons above 40 EeV is constrained to be less than 20% of its total GW energy. These are the first limits on UHE photons from GW sources.

Published
2023
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6. A Catalog of the Highest-energy Cosmic Rays Recorded during Phase I of Operation of the Pierre Auger Observatory

Author

A. Abdul Halim, P. Abreu, M. Aglietta, I. Allekotte, P. Allison, K. Almeida Cheminant, A. Almela, J. Alvarez-Muñiz, J. Ammerman Yebra, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, P. R. Araújo Ferreira, E. Arnone, J. C. Arteaga Velázquez, H. Asorey, P. Assis, M. Ave, G. Avila, E. Avocone, A. M. Badescu, A. Bakalova, A. Balaceanu, F. Barbato, J. Beatty, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, G. Bhatta, P. L. Biermann, P. Billoir, V. Binet, K. Bismark, T. Bister, J. Biteau, J. Blazek, C. Bleve, J. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, L. Bonneau Arbeletche, N. Borodai, J. Brack, T. Bretz, P. G. Brichetto Orchera, F. L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, M. Büsken, A. Bwembya, K. S. Caballero-Mora, L. Caccianiga, I. Caracas, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, R. Cester, J. A. Chinellato, J. Chirinos, J. Chudoba, L. Chytka, R. W. Clay, A. C. Cobos Cerutti, R. Colalillo, A. Coleman, M. R. Coluccia, R. Conceição, A. Condorelli, G. Consolati, F. Contreras, F. Convenga, D. Correia dos Santos, C. E. Covault, M. Cristinziani, C. S. Cruz Sanchez, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de Almeida, J. de Jesús, S. J. de Jong, J. R. T. de Mello Neto, I. De Mitri, J. de Oliveira, D. de Oliveira Franco, F. de Palma, V. de Souza, E. De Vito, A. Del Popolo, O. Deligny, L. Deval, A. di Matteo, M. Dobre, C. Dobrigkeit, J. C. D’Olivo, L. M. Domingues Mendes, A. Dorofeev, R. C. dos Anjos, J. Ebr, M. Eman, R. Engel, I. Epicoco, M. Erdmann, A. Etchegoyen, H. Falcke, J. Farmer, G. Farrar, A. C. Fauth, N. Fazzini, F. Feldbusch, F. Fenu, B. Fick, J. M. Figueira, A. Filipčič, T. Fitoussi, B. Flaggs, T. Fodran, T. Fujii, A. Fuster, C. Galea, C. Galelli, B. García, H. Gemmeke, F. Gesualdi, A. Gherghel-Lascu, P. L. Ghia, U. Giaccari, M. Giammarchi, J. Glombitza, F. Gobbi, F. Gollan, G. Golup, M. Gómez Berisso, P. F. Gómez Vitale, J. P. Gongora, J. M. González, N. González, I. Goos, D. Góra, A. Gorgi, M. Gottowik, T. D. Grubb, F. Guarino, G. P. Guedes, E. Guido, S. Hahn, P. Hamal, M. R. Hampel, P. Hansen, D. Harari, J. Harton, V. M. Harvey, A. Haungs, T. Hebbeker, D. Heck, C. Hojvat, J. R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, A. Insolia, P. G. Isar, P. Janecek, J. A. Johnsen, J. Jurysek, A. Kääpä, K. H. Kampert, B. Keilhauer, A. Khakurdikar, V. V. Kizakke Covilakam, H. O. Klages, M. Kleifges, J. Kleinfeller, F. Knapp, J. Knapp, N. Kunka, C. Lachaud, B. L. Lago, N. Langner, M. A. Leigui de Oliveira, V. Lenok, A. Letessier-Selvon, I. Lhenry-Yvon, D. Lo Presti, L. Lopes, R. López, L. Lu, Q. Luce, J. P. Lundquist, A. Machado Payeras, D. Mandat, B. C. Manning, J. Manshanden, P. Mantsch, S. Marafico, F. M. Mariani, A. G. Mariazzi, I. C. Mariş, G. Marsella, D. Martello, S. Martinelli, O. Martínez Bravo, M. A. Martins, M. Mastrodicasa, H. J. Mathes, J. Matthews, G. Matthiae, E. Mayotte, S. Mayotte, P. O. Mazur, G. Medina-Tanco, J. Meinert, D. Melo, A. Menshikov, S. Michal, M. I. Micheletti, L. Miramonti, S. Mollerach, F. Montanet, L. Morejon, C. Morello, A. L. Müller, K. Mulrey, R. Mussa, M. Muzio, W. M. Namasaka, A. Nasr-Esfahani, L. Nellen, G. Nicora, M. Niculescu-Oglinzanu, M. Niechciol, D. Nitz, I. Norwood, D. Nosek, V. Novotny, L. Nožka, A Nucita, L. A. Núñez, C. Oliveira, M. Palatka, J. Pallotta, G. Parente, A. Parra, J. Pawlowsky, M. Pech, J. Pȩkala, R. Pelayo, E. E. Pereira Martins, J. Perez Armand, C. Pérez Bertolli, L. Perrone, S. Petrera, C. Petrucci, T. Pierog, M. Pimenta, M. Platino, B. Pont, M. Pothast, M. Pourmohammad Shavar, P. Privitera, M. Prouza, A. Puyleart, S. Querchfeld, J. Rautenberg, D. Ravignani, M. Reininghaus, J. Ridky, F. Riehn, M. Risse, V. Rizi, W. Rodrigues de Carvalho, J. Rodriguez Rojo, M. J. Roncoroni, S. Rossoni, M. Roth, E. Roulet, A. C. Rovero, P. Ruehl, A. Saftoiu, M. Saharan, F. Salamida, H. Salazar, G. Salina, J. D. Sanabria Gomez, F. Sánchez, E. M. Santos, E. Santos, F. Sarazin, R. Sarmento, R. Sato, P. Savina, C. M. Schäfer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, F. Schlüter, D. Schmidt, O. Scholten, H. Schoorlemmer, P. Schovánek, F. G. Schröder, J. Schulte, T. Schulz, S. J. Sciutto, M. Scornavacche, A. Segreto, S. Sehgal, S. U. Shivashankara, G. Sigl, G. Silli, O. Sima, R. Smau, R. Šmída, P. Sommers, J. F. Soriano, R. Squartini, M. Stadelmaier, D. Stanca, S. Stanič, J. Stasielak, P. Stassi, M. Straub, A. Streich, M. Suárez-Durán, T. Sudholz, T. Suomijärvi, A. D. Supanitsky, Z. Szadkowski, A. Tapia, C. Taricco, C. Timmermans, O. Tkachenko, P. Tobiska, C. J. Todero Peixoto, B. Tomé, Z. Torrès, A. Travaini, P. Travnicek, C. Trimarelli, M. Tueros, R. Ulrich, M. Unger, L. Vaclavek, M. Vacula, J. F. Valdés Galicia, L. Valore, E. Varela, A. Vásquez-Ramírez, D. Veberič, C. Ventura, I. D. Vergara Quispe, V. Verzi, J. Vicha, L. M. Villase nor Cendejas, J. Vink, S. Vorobiov, C. Watanabe, A. A. Watson, A. Weindl, L. Wiencke, H. Wilczyński, D. Wittkowski, B. Wundheiler, P. Younk, A. Yushkov, O. Zapparrata, E. Zas, D. Zavrtanik, M. Zavrtanik, and (The Pierre Auger Collaboration)

Subjects
Ultra-high-energy cosmic radiation, Cosmic ray showers, Experimental data, Catalogs, Astrophysics, QB460-466
Abstract

A catalog containing details of the highest-energy cosmic rays recorded through the detection of extensive air showers at the Pierre Auger Observatory is presented with the aim of opening the data to detailed examination. Descriptions of the 100 showers created by the highest-energy particles recorded between 2004 January 1 and 2020 December 31 are given for cosmic rays that have energies in the range 78–166 EeV. Details are also given on a further nine very energetic events that have been used in the calibration procedure adopted to determine the energy of each primary. A sky plot of the arrival directions of the most energetic particles is shown. No interpretations of the data are offered.

Published
2023
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7. A 3‐Year Sample of Almost 1,600 Elves Recorded Above South America by the Pierre Auger Cosmic‐Ray Observatory

Author

A. Aab, P. Abreu, M. Aglietta, I. F. M. Albuquerque, J. M. Albury, I. Allekotte, A. Almela, J. Alvarez Castillo, J. Alvarez‐Muñiz, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, H. Asorey, P. Assis, G. Avila, A. M. Badescu, A. Bakalova, A. Balaceanu, F. Barbato, R. J. Barreira Luz, S. Baur, K. H. Becker, J.A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, P. L. Biermann, J. Biteau, S. G. Blaess, A. Blanco, J. Blazek, C. Bleve, M. Boháčová, D. Boncioli, C. Bonifazi, N. Borodai, A. M. Botti, J. Brack, T. Bretz, A. Bridgeman, F. L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, K. S. Caballero‐Mora, L. Caccianiga, L. Calcagni, A. Cancio, F. Canfora, J. M. Carceller, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, J. A. Chinellato, J. Chudoba, L. Chytka, R.W. Clay, A. C. Cobos Cerutti, R. Colalillo, A. Coleman, M. R. Coluccia, R. Conceição, A. Condorelli, G. Consolati, F. Contreras, M. J. Cooper, S. Coutu, C. E. Covault, B. Daniel, S. Dasso, K. Daumiller, B. R. Dawson, J. A. Day, R. M. deAlmeida, S. J. deJong, G. Mauro, J. R. T. deMello Neto, I. Mitri, J. deOliveira, F. O. deOliveira Salles, V. deSouza, J. Debatin, M. delRío, O. Deligny, N. Dhital, M. L. Díaz Castro, F. Diogo, C. Dobrigkeit, J. C. D'Olivo, Q. Dorosti, R. C. dosAnjos, M. T. Dova, A. Dundovic, J. Ebr, R. Engel, M. Erdmann, C. O. Escobar, A. Etchegoyen, H. Falcke, J. Farmer, G. Farrar, A. C. Fauth, N. Fazzini, F. Feldbusch, F. Fenu, L. P. Ferreyro, J. M. Figueira, A. Filipčič, M. M. Freire, T. Fujii, A. Fuster, B. García, H. Gemmeke, A. Gherghel‐Lascu, P. L. Ghia, U. Giaccari, M. Giammarchi, M. Giller, D. Głas, J. Glombitza, F. Gobbi, G. Golup, M. Gómez Berisso, P. F. Gómez Vitale, J. P. Gongora, N. González, I. Goos, D. Góra, A. Gorgi, M. Gottowik, T. D. Grubb, F. Guarino, G. P. Guedes, E. Guido, R. Halliday, M. R. Hampel, P. Hansen, D. Harari, T. A. Harrison, V. M. Harvey, A. Haungs, T. Hebbeker, D. Heck, P. Heimann, G. C. Hill, C. Hojvat, E. M. Holt, P. Homola, J. R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, J. Hulsman, A. Insolia, P. G. Isar, I. Jandt, J. A. Johnsen, M. Josebachuili, J. Jurysek, A. Kääpä, K. H. Kampert, B. Keilhauer, N. Kemmerich, J. Kemp, H. O. Klages, M. Kleifges, J. Kleinfeller, R. Krause, D. Kuempel, G. Kukec Mezek, A. Kuotb Awad, B. L. Lago, D. LaHurd, R. G. Lang, R. Legumina, M. A. Leigui de Oliveira, V. Lenok, A. Letessier‐Selvon, I. Lhenry‐Yvon, O. C. Lippmann, D. Lo Presti, L. Lopes, R. López, A. López Casado, R. Lorek, Q. Luce, A. Lucero, M. Malacari, G. Mancarella, D. Mandat, B. C. Manning, P. Mantsch, A. G. Mariazzi, I. C. Mariş, G. Marsella, D. Martello, H. Martinez, O. Martínez Bravo, M. Mastrodicasa, H. J. Mathes, S. Mathys, J. Matthews, G. Matthiae, E. Mayotte, P. O. Mazur, G. Medina‐Tanco, D. Melo, A. Menshikov, K.‐D. Merenda, S. Michal, M. I. Micheletti, L. Middendorf, L. Miramonti, B. Mitrica, D. Mockler, S. Mollerach, F. Montanet, C. Morello, G. Morlino, M. Mostafá, A. L. Müller, M. A. Muller, S. Müller, R. Mussa, L. Nellen, P. H. Nguyen, M. Niculescu‐Oglinzanu, M. Niechciol, D. Nitz, D. Nosek, V. Novotny, L. Noža, A Nucita, L.A. Núñez, A. Olinto, M. Palatka, J. Pallotta, M. P. Panetta, P. Papenbreer, G. Parente, A. Parra, M. Pech, F. Pedreira, J. Pękala, R. Pelayo, J. Peña‐Rodriguez, L. A. S. Pereira, M. Perlin, L. Perrone, C. Peters, S. Petrera, J. Phuntsok, T. Pierog, M. Pimenta, V. Pirronello, M. Platino, J. Poh, B. Pont, C. Porowski, R. R. Prado, P. Privitera, M. Prouza, A. Puyleart, S. Querchfeld, S. Quinn, R. Ramos‐Pollan, J. Rautenberg, D. Ravignani, M. Reininghaus, J. Ridky, F. Riehn, M. Risse, P. Ristori, V. Rizi, W. Rodrigues de Carvalho, J. Rodriguez Rojo, M. J. Roncoroni, M. Roth, E. Roulet, A. C. Rovero, P. Ruehl, S. J. Saffi, A. Saftoiu, F. Salamida, H. Salazar, G. Salina, J. D. Sanabria Gomez, F. Sánchez, E. M. Santos, E. Santos, F. Sarazin, R. Sarmento, C. Sarmiento‐Cano, R. Sato, P. Savina, M. Schauer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, F. Schlüter, D. Schmidt, O. Scholten, P. Schovánek, F. G. Schröder, S. Schröder, J. Schumacher, S. J. Sciutto, M. Scornavacche, R. C. Shellard, G. Sigl, G. Silli, O. Sima, R. Šmída, G.R. Snow, P. Sommers, J. F. Soriano, J. Souchard, R. Squartini, D. Stanca, S. Stanič, J. Stasielak, P. Stassi, M. Stolpovskiy, A. Streich, F. Suarez, M. Suárez‐Durán, T. Sudholz, T. Suomijärvi, A.D. Supanitsky, J. Šupík, Z. Szadkowski, A. Taboada, O. A. Taborda, A. Tapia, C. Timmermans, C. J. Todero Peixoto, B. Tomé, G. Torralba Elipe, A. Travaini, P. Travnicek, M. Trini, M. Tueros, R. Ulrich, M. Unger, M. Urban, J. F. Valdés Galicia, I. Valiño, L. Valore, P. vanBodegom, A. M. van denBerg, A. vanVliet, E. Varela, B. Vargas Cárdenas, D. Veberič, C. Ventura, I. D. Vergara Quispe, V. Verzi, J. Vicha, L. Villaseñor, J. Vink, S. Vorobiov, H. Wahlberg, A. A. Watson, M. Weber, A. Weindl, M. Wiedeński, L. Wiencke, H. Wilczyński, T. Winchen, M. Wirtz, D. Wittkowski, B. Wundheiler, L. Yang, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, L. Zehrer, A. Zepeda, B. Zimmermann, M. Ziolkowski, Z. Zong, and F. Zuccarello

Subjects
Astronomy, QB1-991, Geology, QE1-996.5
Abstract

Abstract Elves are a class of transient luminous events, with a radial extent typically greater than 250 km, that occur in the lower ionosphere above strong electrical storms. We report the observation of 1,598 elves, from 2014 to 2016, recorded with unprecedented time resolution (100 ns) using the fluorescence detector (FD) of the Pierre Auger Cosmic‐Ray Observatory. The Auger Observatory is located in the Mendoza province of Argentina with a viewing footprint for elve observations of 3·106 km 2, reaching areas above the Pacific and Atlantic Oceans, as well as the Córdoba region, which is known for severe convective thunderstorms. Primarily designed for ultrahigh energy cosmic‐ray observations, the Auger FD turns out to be very sensitive to the ultraviolet emission in elves. The detector features modified Schmidt optics with large apertures resulting in a field of view that spans the horizon, and year‐round operation on dark nights with low moonlight background, when the local weather is favorable. The measured light profiles of 18% of the elve events have more than one peak, compatible with intracloud activity. Within the 3‐year sample, 72% of the elves correlate with the far‐field radiation measurements of the World Wide Lightning Location Network. The Auger Observatory plans to continue operations until at least 2025, including elve observations and analysis. To the best of our knowledge, this observatory is the only facility on Earth that measures elves with year‐round operation and full horizon coverage.

Published
2020
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8. Multi-Messenger Physics With the Pierre Auger Observatory

Author

Karl-Heinz Kampert, Miguel Alejandro Mostafa, Enrique Zas, The Pierre Auger Collaboration, A. Aab, P. Abreu, M. Aglietta, I.F.M. Albuquerque, J.M. Albury, I. Allekotte, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, G.A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, H. Asorey, P. Assis, G. Avila, A.M. Badescu, A. Bakalova, A. Balaceanu, F. Barbato, R.J. Barreira Luz, S. Baur, K.H. Becker, J.A. Bellido, C. Berat, M.E. Bertaina, X. Bertou, P.L. Biermann, J. Biteau, S.G. Blaess, A. Blanco, J. Blazek, C. Bleve, M. Boháčová, D. Boncioli, C. Bonifazi, N. Borodai, A.M. Botti, J. Brack, T. Bretz, A. Bridgeman, F.L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, K.S. Caballero-Mora, L. Caccianiga, L. Calcagni, A. Cancio, F. Canfora, J.M. Carceller, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, J.A. Chinellato, J. Chudoba, L. Chytka, R.W. Clay, A.C. Cobos Cerutti, R. Colalillo, A. Coleman, M.R. Coluccia, R. Conceição, A. Condorelli, G. Consolati, F. Contreras, F. Convenga, M.J. Cooper, S. Coutu, C.E. Covault, B. Daniel, S. Dasso, K. Daumiller, B.R. Dawson, J.A. Day, R.M. de Almeida, S.J. de Jong, G. De Mauro, J.R.T. de Mello Neto, I. De Mitri, J. de Oliveira, F.O. de Oliveira Salles, V. de Souza, J. Debatin, M. del Río, O. Deligny, N. Dhital, M.L. Díaz Castro, F. Diogo, C. Dobrigkeit, J.C. D'Olivo, Q. Dorosti, R.C. dos Anjos, M.T. Dova, A. Dundovic, J. Ebr, R. Engel, M. Erdmann, C.O. Escobar, A. Etchegoyen, H. Falcke, J. Farmer, G. Farrar, A.C. Fauth, N. Fazzini, F. Feldbusch, F. Fenu, L.P. Ferreyro, J.M. Figueira, A. Filipčič, M.M. Freire, T. Fujii, A. Fuster, B. García, H. Gemmeke, A. Gherghel-Lascu, P.L. Ghia, U. Giaccari, M. Giammarchi, M. Giller, D. Głas, J. Glombitza, F. Gobbi, G. Golup, M. Gómez Berisso, P.F. Gómez Vitale, J.P. Gongora, N. González, I. Goos, D. Góra, A. Gorgi, M. Gottowik, T.D. Grubb, F. Guarino, G.P. Guedes, E. Guido, R. Halliday, M.R. Hampel, P. Hansen, D. Harari, T.A. Harrison, V.M. Harvey, A. Haungs, T. Hebbeker, D. Heck, P. Heimann, G.C. Hill, C. Hojvat, E.M. Holt, P. Homola, J.R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, J. Hulsman, A. Insolia, P.G. Isar, I. Jandt, J.A. Johnsen, M. Josebachuili, J. Jurysek, A. Kääpä, K.H. Kampert, B. Keilhauer, N. Kemmerich, J. Kemp, H.O. Klages, M. Kleifges, J. Kleinfeller, R. Krause, D. Kuempel, G. Kukec Mezek, A. Kuotb Awad, B.L. Lago, D. LaHurd, R.G. Lang, R. Legumina, M.A. Leigui de Oliveira, V. Lenok, A. Letessier-Selvon, I. Lhenry-Yvon, O.C. Lippmann, D. Lo Presti, L. Lopes, R. López, A. López Casado, R. Lorek, Q. Luce, A. Lucero, M. Malacari, G. Mancarella, D. Mandat, B.C. Manning, P. Mantsch, A.G. Mariazzi, I.C. Mariş, G. Marsella, D. Martello, H. Martinez, O. Martínez Bravo, M. Mastrodicasa, H.J. Mathes, S. Mathys, J. Matthews, G. Matthiae, E. Mayotte, P.O. Mazur, G. Medina-Tanco, D. Melo, A. Menshikov, K.-D. Merenda, S. Michal, M.I. Micheletti, L. Middendorf, L. Miramonti, B. Mitrica, D. Mockler, S. Mollerach, F. Montanet, C. Morello, G. Morlino, M. Mostafá, A.L. Müller, M.A. Muller, S. Müller, R. Mussa, L. Nellen, P.H. Nguyen, M. Niculescu-Oglinzanu, M. Niechciol, D. Nitz, D. Nosek, V. Novotny, L. Nožka, A Nucita, L.A. Núñez, F. Oikonomou, A. Olinto, M. Palatka, J. Pallotta, M.P. Panetta, P. Papenbreer, G. Parente, A. Parra, M. Pech, F. Pedreira, J. Pȩkala, R. Pelayo, J. Peña-Rodriguez, L.A.S. Pereira, M. Perlin, L. Perrone, C. Peters, S. Petrera, J. Phuntsok, T. Pierog, M. Pimenta, V. Pirronello, M. Platino, J. Poh, B. Pont, C. Porowski, R.R. Prado, P. Privitera, M. Prouza, A. Puyleart, S. Querchfeld, S. Quinn, R. Ramos-Pollan, J. Rautenberg, D. Ravignani, M. Reininghaus, J. Ridky, F. Riehn, M. Risse, P. Ristori, V. Rizi, W. Rodrigues de Carvalho, J. Rodriguez Rojo, M.J. Roncoroni, M. Roth, E. Roulet, A.C. Rovero, P. Ruehl, S.J. Saffi, A. Saftoiu, F. Salamida, H. Salazar, G. Salina, J.D. Sanabria Gomez, F. Sánchez, E.M. Santos, E. Santos, F. Sarazin, R. Sarmento, C. Sarmiento-Cano, R. Sato, P. Savina, M. Schauer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, F. Schlüter, D. Schmidt, O. Scholten, P. Schovánek, F.G. Schröder, S. Schröder, J. Schumacher, S.J. Sciutto, M. Scornavacche, R.C. Shellard, G. Sigl, G. Silli, O. Sima, R. Šmída, G.R. Snow, P. Sommers, J.F. Soriano, J. Souchard, R. Squartini, D. Stanca, S. Stanič, J. Stasielak, P. Stassi, M. Stolpovskiy, A. Streich, F. Suarez, M. Suárez-Durán, T. Sudholz, T. Suomijärvi, A.D. Supanitsky, J. Šupík, Z. Szadkowski, A. Taboada, O.A. Taborda, A. Tapia, C. Timmermans, C.J. Todero Peixoto, B. Tomé, G. Torralba Elipe, A. Travaini, P. Travnicek, M. Trini, M. Tueros, R. Ulrich, M. Unger, M. Urban, J.F. Valdés Galicia, I. Valiño, L. Valore, P. van Bodegom, A.M. van den Berg, A. van Vliet, E. Varela, B. Vargas Cárdenas, D. Veberič, C. Ventura, I.D. Vergara Quispe, V. Verzi, J. Vicha, L. Villaseñor, J. Vink, S. Vorobiov, H. Wahlberg, A.A. Watson, M. Weber, A. Weindl, M. Wiedeński, L. Wiencke, H. Wilczyński, T. Winchen, M. Wirtz, D. Wittkowski, B. Wundheiler, L. Yang, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, L. Zehrer, A. Zepeda, B. Zimmermann, M. Ziolkowski, Z. Zong, and F. Zuccarello

Subjects
UHECR, high energy neutrinos, high energy photons, high energy neutrons, multi-messenger astrophysics, compact binary mergers, Astronomy, QB1-991, Geophysics. Cosmic physics, QC801-809
Abstract

An overview of the multi-messenger capabilities of the Pierre Auger Observatory is presented. The techniques and performance of searching for Ultra-High Energy neutrinos, photons and neutrons are described. Some of the most relevant results are reviewed, such as stringent upper bounds that were placed to a flux of diffuse cosmogenic neutrinos and photons, bounds placed on neutrinos emitted from compact binary mergers that were detected by LIGO and Virgo during their first and second observing runs, as well as searches for high energy photons and neutrons from the Galactic center that constrain the properties of the putative Galactic PeVatron, observed by the H.E.S.S. collaboration. The observation of directional correlations between ultra-high energy cosmic rays and either high energy astrophysical neutrinos or specific source populations, weighted by their electromagnetic radiation, are also discussed. They constitute additional multi-messenger approaches aimed at identifying the sources of high energy cosmic rays.

Published
2019
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9. Evidence for a mixed mass composition at the ‘ankle’ in the cosmic-ray spectrum

Author

A. Aab, P. Abreu, M. Aglietta, E.J. Ahn, I. Al Samarai, I.F.M. Albuquerque, I. Allekotte, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, M. Ambrosio, G.A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, F. Arqueros, N. Arsene, H. Asorey, P. Assis, J. Aublin, G. Avila, A.M. Badescu, A. Balaceanu, C. Baus, J.J. Beatty, K.H. Becker, J.A. Bellido, C. Berat, M.E. Bertaina, P.L. Biermann, P. Billoir, J. Biteau, S.G. Blaess, A. Blanco, J. Blazek, C. Bleve, M. Boháčová, D. Boncioli, C. Bonifazi, N. Borodai, A.M. Botti, J. Brack, I. Brancus, T. Bretz, A. Bridgeman, F.L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, K.S. Caballero-Mora, B. Caccianiga, L. Caccianiga, A. Cancio, F. Canfora, L. Caramete, R. Caruso, A. Castellina, G. Cataldi, L. Cazon, R. Cester, A.G. Chavez, A. Chiavassa, J.A. Chinellato, J. Chudoba, R.W. Clay, R. Colalillo, A. Coleman, L. Collica, M.R. Coluccia, R. Conceição, F. Contreras, M.J. Cooper, S. Coutu, C.E. Covault, J. Cronin, R. Dallier, S. D'Amico, B. Daniel, S. Dasso, K. Daumiller, B.R. Dawson, R.M. de Almeida, S.J. de Jong, G. De Mauro, J.R.T. de Mello Neto, I. De Mitri, J. de Oliveira, V. de Souza, J. Debatin, L. del Peral, O. Deligny, C. Di Giulio, A. Di Matteo, M.L. Díaz Castro, F. Diogo, C. Dobrigkeit, J.C. D'Olivo, A. Dorofeev, R.C. dos Anjos, M.T. Dova, A. Dundovic, J. Ebr, R. Engel, M. Erdmann, M. Erfani, C.O. Escobar, J. Espadanal, A. Etchegoyen, H. Falcke, K. Fang, G. Farrar, A.C. Fauth, N. Fazzini, B. Fick, J.M. Figueira, A. Filevich, A. Filipčič, O. Fratu, M.M. Freire, T. Fujii, A. Fuster, B. García, D. Garcia-Pinto, F. Gaté, H. Gemmeke, A. Gherghel-Lascu, P.L. Ghia, U. Giaccari, M. Giammarchi, M. Giller, D. Głas, C. Glaser, H. Glass, G. Golup, M. Gómez Berisso, P.F. Gómez Vitale, N. González, B. Gookin, J. Gordon, A. Gorgi, P. Gorham, P. Gouffon, A.F. Grillo, T.D. Grubb, F. Guarino, G.P. Guedes, M.R. Hampel, P. Hansen, D. Harari, T.A. Harrison, J.L. Harton, Q. Hasankiadeh, A. Haungs, T. Hebbeker, D. Heck, P. Heimann, A.E. Herve, G.C. Hill, C. Hojvat, E. Holt, P. Homola, J.R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, J. Hulsman, A. Insolia, P.G. Isar, I. Jandt, S. Jansen, J.A. Johnsen, M. Josebachuili, A. Kääpä, O. Kambeitz, K.H. Kampert, P. Kasper, I. Katkov, B. Keilhauer, E. Kemp, R.M. Kieckhafer, H.O. Klages, M. Kleifges, J. Kleinfeller, R. Krause, N. Krohm, D. Kuempel, G. Kukec Mezek, N. Kunka, A. Kuotb Awad, D. LaHurd, L. Latronico, M. Lauscher, P. Lautridou, P. Lebrun, R. Legumina, M.A. Leigui de Oliveira, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, L. Lopes, R. López, A. López Casado, Q. Luce, A. Lucero, M. Malacari, M. Mallamaci, D. Mandat, P. Mantsch, A.G. Mariazzi, I.C. Mariş, G. Marsella, D. Martello, H. Martinez, O. Martínez Bravo, J.J. Masías Meza, H.J. Mathes, S. Mathys, J. Matthews, J.A.J. Matthews, G. Matthiae, E. Mayotte, P.O. Mazur, C. Medina, G. Medina-Tanco, D. Melo, A. Menshikov, S. Messina, M.I. Micheletti, L. Middendorf, I.A. Minaya, L. Miramonti, B. Mitrica, D. Mockler, L. Molina-Bueno, S. Mollerach, F. Montanet, C. Morello, M. Mostafá, G. Müller, M.A. Muller, S. Müller, I. Naranjo, S. Navas, L. Nellen, J. Neuser, P.H. Nguyen, M. Niculescu-Oglinzanu, M. Niechciol, L. Niemietz, T. Niggemann, D. Nitz, D. Nosek, V. Novotny, H. Nožka, L.A. Núñez, L. Ochilo, F. Oikonomou, A. Olinto, D. Pakk Selmi-Dei, M. Palatka, J. Pallotta, P. Papenbreer, G. Parente, A. Parra, T. Paul, M. Pech, F. Pedreira, J. Pȩkala, R. Pelayo, J. Peña-Rodriguez, L.A.S. Pereira, L. Perrone, C. Peters, S. Petrera, J. Phuntsok, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, C. Porowski, R.R. Prado, P. Privitera, M. Prouza, E.J. Quel, S. Querchfeld, S. Quinn, R. Ramos-Pollant, J. Rautenberg, O. Ravel, D. Ravignani, D. Reinert, B. Revenu, J. Ridky, M. Risse, P. Ristori, V. Rizi, W. Rodrigues de Carvalho, G. Rodriguez Fernandez, J. Rodriguez Rojo, M.D. Rodríguez-Frías, D. Rogozin, J. Rosado, M. Roth, E. Roulet, A.C. Rovero, S.J. Saffi, A. Saftoiu, H. Salazar, A. Saleh, F. Salesa Greus, G. Salina, J.D. Sanabria Gomez, F. Sánchez, P. Sanchez-Lucas, E.M. Santos, E. Santos, F. Sarazin, B. Sarkar, R. Sarmento, C. Sarmiento-Cano, R. Sato, C. Scarso, M. Schauer, V. Scherini, H. Schieler, D. Schmidt, O. Scholten, P. Schovánek, F.G. Schröder, A. Schulz, J. Schulz, J. Schumacher, S.J. Sciutto, A. Segreto, M. Settimo, A. Shadkam, R.C. Shellard, G. Sigl, G. Silli, O. Sima, A. Śmiałkowski, R. Šmída, G.R. Snow, P. Sommers, S. Sonntag, J. Sorokin, R. Squartini, D. Stanca, S. Stanič, J. Stasielak, F. Strafella, F. Suarez, M. Suarez Durán, T. Sudholz, T. Suomijärvi, A.D. Supanitsky, M.S. Sutherland, J. Swain, Z. Szadkowski, O.A. Taborda, A. Tapia, A. Tepe, V.M. Theodoro, C. Timmermans, C.J. Todero Peixoto, L. Tomankova, B. Tomé, A. Tonachini, G. Torralba Elipe, D. Torres Machado, M. Torri, P. Travnicek, M. Trini, R. Ulrich, M. Unger, M. Urban, A. Valbuena-Delgado, J.F. Valdés Galicia, I. Valiño, L. Valore, G. van Aar, P. van Bodegom, A.M. van den Berg, A. van Vliet, E. Varela, B. Vargas Cárdenas, G. Varner, J.R. Vázquez, R.A. Vázquez, D. Veberič, V. Verzi, J. Vicha, L. Villaseñor, S. Vorobiov, H. Wahlberg, O. Wainberg, D. Walz, A.A. Watson, M. Weber, A. Weindl, L. Wiencke, H. Wilczyński, T. Winchen, D. Wittkowski, B. Wundheiler, S. Wykes, L. Yang, D. Yelos, P. Younk, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, A. Zepeda, B. Zimmermann, M. Ziolkowski, Z. Zong, and F. Zuccarello

Subjects
Physics, QC1-999
Abstract

We report a first measurement for ultrahigh energy cosmic rays of the correlation between the depth of shower maximum and the signal in the water Cherenkov stations of air-showers registered simultaneously by the fluorescence and the surface detectors of the Pierre Auger Observatory. Such a correlation measurement is a unique feature of a hybrid air-shower observatory with sensitivity to both the electromagnetic and muonic components. It allows an accurate determination of the spread of primary masses in the cosmic-ray flux. Up till now, constraints on the spread of primary masses have been dominated by systematic uncertainties. The present correlation measurement is not affected by systematics in the measurement of the depth of shower maximum or the signal in the water Cherenkov stations. The analysis relies on general characteristics of air showers and is thus robust also with respect to uncertainties in hadronic event generators. The observed correlation in the energy range around the ‘ankle’ at lg⁡(E/eV)=18.5–19.0 differs significantly from expectations for pure primary cosmic-ray compositions. A light composition made up of proton and helium only is equally inconsistent with observations. The data are explained well by a mixed composition including nuclei with mass A>4. Scenarios such as the proton dip model, with almost pure compositions, are thus disfavored as the sole explanation of the ultrahigh-energy cosmic-ray flux at Earth. Keywords: Pierre Auger Observatory, Cosmic rays, Mass composition, Ankle

Published
2016
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10. EARLINET instrument intercomparison campaigns: overview on strategy and results

Author

U. Wandinger, V. Freudenthaler, H. Baars, A. Amodeo, R. Engelmann, I. Mattis, S. Groß, G. Pappalardo, A. Giunta, G. D'Amico, A. Chaikovsky, F. Osipenko, A. Slesar, D. Nicolae, L. Belegante, C. Talianu, I. Serikov, H. Linné, F. Jansen, A. Apituley, K. M. Wilson, M. de Graaf, T. Trickl, H. Giehl, M. Adam, A. Comerón, C. Muñoz-Porcar, F. Rocadenbosch, M. Sicard, S. Tomás, D. Lange, D. Kumar, M. Pujadas, F. Molero, A. J. Fernández, L. Alados-Arboledas, J. A. Bravo-Aranda, F. Navas-Guzmán, J. L. Guerrero-Rascado, M. J. Granados-Muñoz, J. Preißler, F. Wagner, M. Gausa, I. Grigorov, D. Stoyanov, M. Iarlori, V. Rizi, N. Spinelli, A. Boselli, X. Wang, T. Lo Feudo, M. R. Perrone, F. De Tomasi, and P. Burlizzi

Subjects
Environmental engineering, TA170-171, Earthwork. Foundations, TA715-787
Abstract

This paper introduces the recent European Aerosol Research Lidar Network (EARLINET) quality-assurance efforts at instrument level. Within two dedicated campaigns and five single-site intercomparison activities, 21 EARLINET systems from 18 EARLINET stations were intercompared between 2009 and 2013. A comprehensive strategy for campaign setup and data evaluation has been established. Eleven systems from nine EARLINET stations participated in the EARLINET Lidar Intercomparison 2009 (EARLI09). In this campaign, three reference systems were qualified which served as traveling standards thereafter. EARLINET systems from nine other stations have been compared against these reference systems since 2009. We present and discuss comparisons at signal and at product level from all campaigns for more than 100 individual measurement channels at the wavelengths of 355, 387, 532, and 607 nm. It is shown that in most cases, a very good agreement of the compared systems with the respective reference is obtained. Mean signal deviations in predefined height ranges are typically below ±2 %. Particle backscatter and extinction coefficients agree within ±2 × 10−4 km−1 sr−1 and ± 0.01 km−1, respectively, in most cases. For systems or channels that showed larger discrepancies, an in-depth analysis of deficiencies was performed and technical solutions and upgrades were proposed and realized. The intercomparisons have reinforced confidence in the EARLINET data quality and allowed us to draw conclusions on necessary system improvements for some instruments and to identify major challenges that need to be tackled in the future.

Published
2016
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11. Effective resolution concepts for lidar observations

Author

M. Iarlori, F. Madonna, V. Rizi, T. Trickl, and A. Amodeo

Subjects
Environmental engineering, TA170-171, Earthwork. Foundations, TA715-787
Abstract

Since its establishment in 2000, EARLINET (European Aerosol Research Lidar NETwork) has provided, through its database, quantitative aerosol properties, such as aerosol backscatter and aerosol extinction coefficients, the latter only for stations able to retrieve it independently (from Raman or high-spectral-resolution lidars). These coefficients are stored in terms of vertical profiles, and the EARLINET database also includes the details of the range resolution of the vertical profiles. In fact, the algorithms used in the lidar data analysis often alter the spectral content of the data, mainly acting as low-pass filters to reduce the high-frequency noise. Data filtering is described by the digital signal processing (DSP) theory as a convolution sum: each filtered signal output at a given range is the result of a linear combination of several signal input data samples (relative to different ranges from the lidar receiver), and this could be seen as a loss of range resolution of the output signal. Low-pass filtering always introduces distortions in the lidar profile shape. Thus, both the removal of high frequency, i.e., the removal of details up to a certain spatial extension, and the spatial distortion produce a reduction of the range resolution. This paper discusses the determination of the effective resolution (ERes) of the vertical profiles of aerosol properties retrieved from lidar data. Large attention has been dedicated to providing an assessment of the impact of low-pass filtering on the effective range resolution in the retrieval procedure.

Published
2015
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12. EARLINET: potential operationality of a research network

Author

M. Sicard, G. D'Amico, A. Comerón, L. Mona, L. Alados-Arboledas, A. Amodeo, H. Baars, J. M. Baldasano, L. Belegante, I. Binietoglou, J. A. Bravo-Aranda, A. J. Fernández, P. Fréville, D. García-Vizcaíno, A. Giunta, M. J. Granados-Muñoz, J. L. Guerrero-Rascado, D. Hadjimitsis, A. Haefele, M. Hervo, M. Iarlori, P. Kokkalis, D. Lange, R. E. Mamouri, I. Mattis, F. Molero, N. Montoux, A. Muñoz, C. Muñoz Porcar, F. Navas-Guzmán, D. Nicolae, A. Nisantzi, N. Papagiannopoulos, A. Papayannis, S. Pereira, J. Preißler, M. Pujadas, V. Rizi, F. Rocadenbosch, K. Sellegri, V. Simeonov, G. Tsaknakis, F. Wagner, and G. Pappalardo

Subjects
Environmental engineering, TA170-171, Earthwork. Foundations, TA715-787
Abstract

In the framework of ACTRIS (Aerosols, Clouds, and Trace Gases Research Infrastructure Network) summer 2012 measurement campaign (8 June–17 July 2012), EARLINET organized and performed a controlled exercise of feasibility to demonstrate its potential to perform operational, coordinated measurements and deliver products in near-real time. Eleven lidar stations participated in the exercise which started on 9 July 2012 at 06:00 UT and ended 72 h later on 12 July at 06:00 UT. For the first time, the single calculus chain (SCC) – the common calculus chain developed within EARLINET for the automatic evaluation of lidar data from raw signals up to the final products – was used. All stations sent in real-time measurements of a 1 h duration to the SCC server in a predefined netcdf file format. The pre-processing of the data was performed in real time by the SCC, while the optical processing was performed in near-real time after the exercise ended. 98 and 79 % of the files sent to SCC were successfully pre-processed and processed, respectively. Those percentages are quite large taking into account that no cloud screening was performed on the lidar data. The paper draws present and future SCC users' attention to the most critical parameters of the SCC product configuration and their possible optimal value but also to the limitations inherent to the raw data. The continuous use of SCC direct and derived products in heterogeneous conditions is used to demonstrate two potential applications of EARLINET infrastructure: the monitoring of a Saharan dust intrusion event and the evaluation of two dust transport models. The efforts made to define the measurements protocol and to configure properly the SCC pave the way for applying this protocol for specific applications such as the monitoring of special events, atmospheric modeling, climate research and calibration/validation activities of spaceborne observations.

Published
2015
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13. Assimilation of lidar signals: application to aerosol forecasting in the western Mediterranean basin

Author

Y. Wang, K. N. Sartelet, M. Bocquet, P. Chazette, M. Sicard, G. D'Amico, J. F. Léon, L. Alados-Arboledas, A. Amodeo, P. Augustin, J. Bach, L. Belegante, I. Binietoglou, X. Bush, A. Comerón, H. Delbarre, D. García-Vízcaino, J. L. Guerrero-Rascado, M. Hervo, M. Iarlori, P. Kokkalis, D. Lange, F. Molero, N. Montoux, A. Muñoz, C. Muñoz, D. Nicolae, A. Papayannis, G. Pappalardo, J. Preissler, V. Rizi, F. Rocadenbosch, K. Sellegri, F. Wagner, and F. Dulac

Subjects
Physics, QC1-999, Chemistry, QD1-999
Abstract

This paper presents a new application of assimilating lidar signals to aerosol forecasting. It aims at investigating the impact of a ground-based lidar network on the analysis and short-term forecasts of aerosols through a case study in the Mediterranean basin. To do so, we employ a data assimilation (DA) algorithm based on the optimal interpolation method developed in the Polair3D chemistry transport model (CTM) of the Polyphemus air quality modelling platform. We assimilate hourly averaged normalised range-corrected lidar signals (PR2) retrieved from a 72 h period of intensive and continuous measurements performed in July 2012 by ground-based lidar systems of the European Aerosol Research Lidar Network (EARLINET) integrated into the Aerosols, Clouds, and Trace gases Research InfraStructure (ACTRIS) network and an additional system in Corsica deployed in the framework of the pre-ChArMEx (Chemistry-Aerosol Mediterranean Experiment)/TRAQA (TRAnsport à longue distance et Qualité de l'Air) campaign. This lidar campaign was dedicated to demonstrating the potential operationality of a research network like EARLINET and the potential usefulness of assimilation of lidar signals to aerosol forecasts. Particles with an aerodynamic diameter lower than 2.5 μm (PM2.5) and those with an aerodynamic diameter higher than 2.5 μm but lower than 10 μm (PM10–2.5) are analysed separately using the lidar observations at each DA step. First, we study the spatial and temporal influences of the assimilation of lidar signals on aerosol forecasting. We conduct sensitivity studies on algorithmic parameters, e.g. the horizontal correlation length (Lh) used in the background error covariance matrix (50 km, 100 km or 200 km), the altitudes at which DA is performed (0.75–3.5 km, 1.0–3.5 km or 1.5–3.5 km a.g.l.) and the assimilation period length (12 h or 24 h). We find that DA with Lh = 100 km and assimilation from 1.0 to 3.5 km a.g.l. during a 12 h assimilation period length leads to the best scores for PM10 and PM2.5 during the forecast period with reference to available measurements from surface networks. Secondly, the aerosol simulation results without and with lidar DA using the optimal parameters (Lh = 100 km, an assimilation altitude range from 1.0 to 3.5 km a.g.l. and a 12 h DA period) are evaluated using the level 2.0 (cloud-screened and quality-assured) aerosol optical depth (AOD) data from AERONET, and mass concentration measurements (PM10 or PM2.5) from the French air quality (BDQA) network and the EMEP-Spain/Portugal network. The results show that the simulation with DA leads to better scores than the one without DA for PM2.5, PM10and AOD. Additionally, the comparison of model results to evaluation data indicates that the temporal impact of assimilating lidar signals is longer than 36 h after the assimilation period.

Published
2014
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14. Overview: Tropospheric profiling: state of the art and future challenges – introduction to the AMT special issue

Author

D. Cimini, V. Rizi, P. Di Girolamo, F. S. Marzano, A. Macke, G. Pappalardo, and A. Richter

Subjects
Environmental engineering, TA170-171, Earthwork. Foundations, TA715-787
Abstract

This paper introduces the Atmospheric Measurement Techniques special issue on tropospheric profiling, which was conceived to host full papers presenting the results shown at the 9th International Symposium on Tropospheric Profiling (ISTP9). ISTP9 was held in L'Aquila (Italy) from 3 to 7 September 2012, bringing together 150 scientists representing of 28 countries and 3 continents. The tropospheric profiling special issue collects the highlights of ISTP9, reporting recent advances and future challenges in research and technology development.

Published
2014
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15. Validation of MIPAS-ENVISAT H2O operational data collected between July 2002 and March 2004

Author

G. Wetzel, H. Oelhaf, G. Berthet, A. Bracher, C. Cornacchia, D. G. Feist, H. Fischer, A. Fix, M. Iarlori, A. Kleinert, A. Lengel, M. Milz, L. Mona, S. C. Müller, J. Ovarlez, G. Pappalardo, C. Piccolo, P. Raspollini, J.-B. Renard, V. Rizi, S. Rohs, C. Schiller, G. Stiller, M. Weber, and G. Zhang

Subjects
Physics, QC1-999, Chemistry, QD1-999
Abstract

Water vapour (H2O) is one of the operationally retrieved key species of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard the Environmental Satellite (ENVISAT) which was launched into its sun-synchronous orbit on 1 March 2002 and operated until April 2012. Within the MIPAS validation activities, independent observations from balloons, aircraft, satellites, and ground-based stations have been compared to European Space Agency (ESA) version 4.61 operational H2O data comprising the time period from July 2002 until March 2004 where MIPAS measured with full spectral resolution. No significant bias in the MIPAS H2O data is seen in the lower stratosphere (above the hygropause) between about 15 and 30 km. Differences of H2O quantities observed by MIPAS and the validation instruments are mostly well within the combined total errors in this altitude region. In the upper stratosphere (above about 30 km), a tendency towards a small positive bias (up to about 10%) is present in the MIPAS data when compared to its balloon-borne counterpart MIPAS-B, to the satellite instruments HALOE (Halogen Occultation Experiment) and ACE-FTS (Atmospheric Chemistry Experiment, Fourier Transform Spectrometer), and to the millimeter-wave airborne sensor AMSOS (Airborne Microwave Stratospheric Observing System). In the mesosphere the situation is unclear due to the occurrence of different biases when comparing HALOE and ACE-FTS data. Pronounced deviations between MIPAS and the correlative instruments occur in the lowermost stratosphere and upper troposphere, a region where retrievals of H2O are most challenging. Altogether it can be concluded that MIPAS H2O profiles yield valuable information on the vertical distribution of H2O in the stratosphere with an overall accuracy of about 10 to 30% and a precision of typically 5 to 15% – well within the predicted error budget, showing that these global and continuous data are very valuable for scientific studies. However, in the region around the tropopause retrieved MIPAS H2O profiles are less reliable, suffering from a number of obstacles such as retrieval boundary and cloud effects, sharp vertical discontinuities, and frequent horizontal gradients in both temperature and H2O volume mixing ratio (VMR). Some profiles are characterized by retrieval instabilities.

Published
2013
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16. Four-dimensional distribution of the 2010 Eyjafjallajökull volcanic cloud over Europe observed by EARLINET

Author

G. Pappalardo, L. Mona, G. D'Amico, U. Wandinger, M. Adam, A. Amodeo, A. Ansmann, A. Apituley, L. Alados Arboledas, D. Balis, A. Boselli, J. A. Bravo-Aranda, A. Chaikovsky, A. Comeron, J. Cuesta, F. De Tomasi, V. Freudenthaler, M. Gausa, E. Giannakaki, H. Giehl, A. Giunta, I. Grigorov, S. Groß, M. Haeffelin, A. Hiebsch, M. Iarlori, D. Lange, H. Linné, F. Madonna, I. Mattis, R.-E. Mamouri, M. A. P. McAuliffe, V. Mitev, F. Molero, F. Navas-Guzman, D. Nicolae, A. Papayannis, M. R. Perrone, C. Pietras, A. Pietruczuk, G. Pisani, J. Preißler, M. Pujadas, V. Rizi, A. A. Ruth, J. Schmidt, F. Schnell, P. Seifert, I. Serikov, M. Sicard, V. Simeonov, N. Spinelli, K. Stebel, M. Tesche, T. Trickl, X. Wang, F. Wagner, M. Wiegner, and K. M. Wilson

Subjects
Physics, QC1-999, Chemistry, QD1-999
Abstract

The eruption of the Icelandic volcano Eyjafjallajökull in April–May 2010 represents a "natural experiment" to study the impact of volcanic emissions on a continental scale. For the first time, quantitative data about the presence, altitude, and layering of the volcanic cloud, in conjunction with optical information, are available for most parts of Europe derived from the observations by the European Aerosol Research Lidar NETwork (EARLINET). Based on multi-wavelength Raman lidar systems, EARLINET is the only instrument worldwide that is able to provide dense time series of high-quality optical data to be used for aerosol typing and for the retrieval of particle microphysical properties as a function of altitude. In this work we show the four-dimensional (4-D) distribution of the Eyjafjallajökull volcanic cloud in the troposphere over Europe as observed by EARLINET during the entire volcanic event (15 April–26 May 2010). All optical properties directly measured (backscatter, extinction, and particle linear depolarization ratio) are stored in the EARLINET database available at http://www.earlinet.org. A specific relational database providing the volcanic mask over Europe, realized ad hoc for this specific event, has been developed and is available on request at http://www.earlinet.org. During the first days after the eruption, volcanic particles were detected over Central Europe within a wide range of altitudes, from the upper troposphere down to the local planetary boundary layer (PBL). After 19 April 2010, volcanic particles were detected over southern and south-eastern Europe. During the first half of May (5–15 May), material emitted by the Eyjafjallajökull volcano was detected over Spain and Portugal and then over the Mediterranean and the Balkans. The last observations of the event were recorded until 25 May in Central Europe and in the Eastern Mediterranean area. The 4-D distribution of volcanic aerosol layering and optical properties on European scale reported here provides an unprecedented data set for evaluating satellite data and aerosol dispersion models for this kind of volcanic events.

Published
2013
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17. Geophysical validation of temperature retrieved by the ESA processor from MIPAS/ENVISAT atmospheric limb-emission measurements

Author

M. Ridolfi, U. Blum, B. Carli, V. Catoire, S. Ceccherini, H. Claude, C. De Clercq, K. H. Fricke, F. Friedl-Vallon, M. Iarlori, P. Keckhut, B. Kerridge, J.-C. Lambert, Y. J. Meijer, L. Mona, H. Oelhaf, G. Pappalardo, M. Pirre, V. Rizi, C. Robert, D. Swart, T. von Clarmann, A. Waterfall, and G. Wetzel

Subjects
Physics, QC1-999, Chemistry, QD1-999
Abstract

The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) has been operating since March 2002 onboard of the ENVIronmental SATellite of the European Space Agency (ESA). The high resolution (0.035 cm−1 full width half maximum, unapodized) limb-emission measurements acquired by MIPAS in the first two years of operation have very good geographical and temporal coverage and have been re-processed by ESA with the most recent versions (4.61 and 4.62) of the inversion algorithms. The products of this processing chain are pressures at the tangent points and geolocated profiles of temperature and of the volume mixing ratios of six key atmospheric constituents: H2O, O3, HNO3, CH4, N2O and NO2. As for all the measurements made with innovative instruments and techniques, this data set requires a thorough validation. In this paper we present a geophysical validation of the temperature profiles derived from MIPAS measurements by the ESA retrieval algorithm. The validation is carried-out by comparing MIPAS temperature with correlative measurements made by radiosondes, lidars, in-situ and remote sensors operated either from the ground or stratospheric balloons. The results of the intercomparison indicate that the bias of the MIPAS profiles is generally smaller than 1 or 2 K depending on altitude. Furthermore we find that, especially at the edges of the altitude range covered by the MIPAS scan, the random error estimated from the intercomparison is larger (typically by a factor of two to three) than the corresponding estimate derived on the basis of error propagation. In this work we also characterize the discrepancies between MIPAS temperature and the temperature fields resulting from the analyses of the European Centre for Medium-range Weather Forecasts (ECMWF). The bias and the standard deviation of these discrepancies are consistent with those obtained when comparing MIPAS to correlative measurements; however, in this case the detected bias has a peculiar behavior as a function of altitude. This behavior is very similar to that observed in previous studies and is suspected to be due to vertical oscillations in the ECMWF temperature. The current understanding is that, at least in the upper stratosphere (above ≈10 hPa), these oscillations are caused by a discrepancy between model biases and biases of assimilated radiances from primarily nadir sounders.

Published
2007

18. Ultrahigh Energy Neutrinos at the Pierre Auger Observatory

Author

P. Abreu, M. Aglietta, M. Ahlers, E. J. Ahn, I. F. M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, R. Alves Batista, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, C. Aramo, E. Arganda, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, M. Avenier, G. Avila, T. Bäcker, A. M. Badescu, M. Balzer, K. B. Barber, A. F. Barbosa, R. Bardenet, S. L. C. Barroso, B. Baughman, J. Bäuml, J. J. Beatty, B. R. Becker, K. H. Becker, A. Bellétoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancus, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, K. S. Caballero-Mora, B. Caccianiga, L. Caramete, R. Caruso, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, S. H. Cheng, A. Chiavassa, J. A. Chinellato, J. Chirinos Diaz, J. Chudoba, M. Cilmo, R. W. Clay, M. R. Coluccia, R. Conceição, F. Contreras, H. Cook, M. J. Cooper, J. Coppens, A. Cordier, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. Cronin, A. Curutiu, S. Dagoret-Campagne, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, I. De Mitri, V. de Souza, K. D. de Vries, L. del Peral, M. del Río, O. Deligny, H. Dembinski, N. Dhital, C. Di Giulio, M. L. Díaz Castro, P. N. Diep, F. Diogo, C. Dobrigkeit, W. Docters, J. C. D'Olivo, P. N. Dong, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D'Urso, I. Dutan, J. Ebr, R. Engel, M. Erdmann, C. O. Escobar, J. Espadanal, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, A. P. Ferguson, B. Fick, A. Filevich, A. Filipčič, S. Fliescher, C. E. Fracchiolla, E. D. Fraenkel, O. Fratu, U. Fröhlich, B. Fuchs, R. Gaior, R. F. Gamarra, S. Gambetta, B. García, S. T. Garcia Roca, D. Garcia-Gamez, D. Garcia-Pinto, A. Gascon Bravo, H. Gemmeke, P. L. Ghia, M. Giller, J. Gitto, H. Glass, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gómez Berisso, P. F. Gómez Vitale, P. Gonçalves, J. G. Gonzalez, B. Gookin, A. Gorgi, P. Gouffon, E. Grashorn, S. Grebe, N. Griffith, M. Grigat, A. F. Grillo, Y. Guardincerri, F. Guarino, G. P. Guedes, P. Hansen, D. Harari, T. A. Harrison, J. L. Harton, A. Haungs, T. Hebbeker, D. Heck, A. E. Herve, C. Hojvat, N. Hollon, V. C. Holmes, P. Homola, J. R. Hörandel, P. Horvath, M. Hrabovský, D. Huber, T. Huege, A. Insolia, F. Ionita, A. Italiano, C. Jarne, S. Jiraskova, M. Josebachuili, K. Kadija, K. H. Kampert, P. Karhan, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, J. L. Kelley, E. Kemp, R. M. Kieckhafer, H. O. Klages, M. Kleifges, J. Kleinfeller, J. Knapp, D.-H. Koang, K. Kotera, N. Krohm, O. Krömer, D. Kruppke-Hansen, F. Kuehn, D. Kuempel, J. K. Kulbartz, N. Kunka, G. La Rosa, C. Lachaud, D. LaHurd, L. Latronico, R. Lauer, P. Lautridou, S. Le Coz, M. S. A. B. Leão, D. Lebrun, P. Lebrun, M. A. Leigui de Oliveira, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. Lopez Agüera, K. Louedec, J. Lozano Bahilo, L. Lu, A. Lucero, M. Ludwig, H. Lyberis, M. C. Maccarone, C. Macolino, S. Maldera, D. Mandat, P. Mantsch, A. G. Mariazzi, J. Marin, V. Marin, I. C. Maris, H. R. Marquez Falcon, G. Marsella, D. Martello, L. Martin, H. Martinez, O. Martínez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurel, D. Maurizio, P. O. Mazur, G. Medina-Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, P. Mertsch, C. Meurer, S. Mićanović, M. I. Micheletti, I. A. Minaya, L. Miramonti, L. Molina-Bueno, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, E. Moreno, J. C. Moreno, M. Mostafá, C. A. Moura, M. A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, A. Nelles, J. Neuser, P. T. Nhung, M. Niechciol, L. Niemietz, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nožka, J. Oehlschläger, A. Olinto, M. Ortiz, N. Pacheco, D. Pakk Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, G. Parente, E. Parizot, A. Parra, S. Pastor, T. Paul, M. Pech, J. Pękala, R. Pelayo, I. M. Pepe, L. Perrone, R. Pesce, E. Petermann, S. Petrera, A. Petrolini, Y. Petrov, C. Pfendner, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, V. H. Ponce, M. Pontz, A. Porcelli, P. Privitera, M. Prouza, E. J. Quel, S. Querchfeld, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. Riggi, M. Risse, P. Ristori, H. Rivera, V. Rizi, J. Roberts, W. Rodrigues de Carvalho, G. Rodriguez, I. Rodriguez Cabo, J. Rodriguez Martino, J. Rodriguez Rojo, M. D. Rodríguez-Frías, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouillé-d'Orfeuil, E. Roulet, A. C. Rovero, C. Rühle, A. Saftoiu, F. Salamida, H. Salazar, F. Salesa Greus, G. Salina, F. Sánchez, C. E. Santo, E. Santos, E. M. Santos, F. Sarazin, B. Sarkar, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovánek, F. Schröder, S. Schulte, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, M. Settimo, A. Shadkam, R. C. Shellard, I. Sidelnik, G. Sigl, O. Sima, A. Śmiałkowski, R. Šmída, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, Y. N. Srivastava, S. Stanic, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, T. Suomijärvi, A. D. Supanitsky, T. Šuša, M. S. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, A. Tapia, M. Tartare, O. Taşcău, R. Tcaciuc, N. T. Thao, D. Thomas, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, M. Tueros, R. Ulrich, M. Unger, M. Urban, J. F. Valdés Galicia, I. Valiño, L. Valore, A. M. van den Berg, E. Varela, B. Vargas Cárdenas, J. R. Vázquez, R. A. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Walz, A. A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, S. Westerhoff, B. J. Whelan, A. Widom, G. Wieczorek, L. Wiencke, B. Wilczyñska, H. Wilczyñski, M. Will, C. Williams, T. Winchen, M. Wommer, B. Wundheiler, T. Yamamoto, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano Garcia, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, Y. Zhu, M. Zimbres Silva, and M. Ziolkowski

Subjects
Physics, QC1-999
Abstract

The observation of ultrahigh energy neutrinos (UHEνs) has become a priority in experimental astroparticle physics. UHEνs can be detected with a variety of techniques. In particular, neutrinos can interact in the atmosphere (downward-going ν) or in the Earth crust (Earth-skimming ν), producing air showers that can be observed with arrays of detectors at the ground. With the surface detector array of the Pierre Auger Observatory we can detect these types of cascades. The distinguishing signature for neutrino events is the presence of very inclined showers produced close to the ground (i.e., after having traversed a large amount of atmosphere). In this work we review the procedure and criteria established to search for UHEνs in the data collected with the ground array of the Pierre Auger Observatory. This includes Earth-skimming as well as downward-going neutrinos. No neutrino candidates have been found, which allows us to place competitive limits to the diffuse flux of UHEνs in the EeV range and above.

Published
2013
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19. 1979-1999 satellite total ozone column measurements over West Africa

Author

P. Di Carlo, F. Masci, V. Rizi, T. C. Chineke, and M. Iarlori

Subjects
ozone, aerosol, lidar, satellite, QBO, Meteorology. Climatology, QC851-999, Geophysics. Cosmic physics, QC801-809
Abstract

Total Ozone Mapping Spectrometer (TOMS) instruments have been flown on NASA/GSFC satellites for over 20 years. They provide near real-time ozone data for Atmospheric Science Research. As part of preliminary efforts aimed to develop a Lidar station in Nigeria for monitoring the atmospheric ozone and aerosol levels, the monthly mean TOMS total column ozone measurements between 1979 to 1999 have been analysed. The trends of the total column ozone showed a spatial and temporal variation with signs of the Quasi Biennial Oscillation (QBO) during the 20-year study period. The values of the TOMS total ozone column, over Nigeria (4-14°N) is within the range of 230-280 Dobson Units, this is consistent with total ozone column data, measured since April 1993 with a Dobson Spectrophotometer at Lagos (3°21¢E, 6°33¢N), Nigeria.

Published
2000
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20. Sensitivity of the Cherenkov Telescope Array to TeV photon emission from the Large Magellanic Cloud

Author

A Acharyya, R Adam, A Aguasca-Cabot, I Agudo, A Aguirre-Santaella, J Alfaro, R Aloisio, R Alves Batista, E Amato, E O Angüner, C Aramo, C Arcaro, K Asano, J Aschersleben, H Ashkar, M Backes, A Baktash, C Balazs, M Balbo, J Ballet, A Bamba, A Baquero Larriva, V Barbosa Martins, U Barres de Almeida, J A Barrio, D Bastieri, P Batista, I Batkovic, J R Baxter, J Becerra González, J Becker Tjus, W Benbow, E Bernardini, M I Bernardos Martín, J Bernete Medrano, A Berti, B Bertucci, V Beshley, P Bhattacharjee, S Bhattacharyya, C Bigongiari, A Biland, E Bissaldi, F Bocchino, P Bordas, J Borkowski, E Bottacini, M Böttcher, F Bradascio, A M Brown, A Bulgarelli, L Burmistrov, S Caroff, A Carosi, E Carquín, S Casanova, E Cascone, F Cassol, M Cerruti, P Chadwick, S Chaty, A Chen, A Chiavassa, L Chytka, V Conforti, J Cortina, A Costa, H Costantini, G Cotter, S Crestan, P Cristofari, F D’Ammando, M Dalchenko, F Dazzi, A De Angelis, V De Caprio, E M de Gouveia Dal Pino, D De Martino, M de Naurois, V de Souza, M V del Valle, A G Delgado Giler, C Delgado, D della Volpe, D Depaoli, T Di Girolamo, A Di Piano, F Di Pierro, R Di Tria, L Di Venere, S Diebold, M Doro, D Dumora, V V Dwarkadas, C Eckner, K Egberts, G Emery, J Escudero, D Falceta-Goncalves, E Fedorova, S Fegan, Q Feng, D Ferenc, G Ferrand, E Fiandrini, M Filipovic, V Fioretti, L Foffano, G Fontaine, Y Fukui, D Gaggero, G Galanti, G Galaz, S Gallozzi, V Gammaldi, M Garczarczyk, C Gasbarra, D Gasparrini, A Ghalumyan, M Giarrusso, G Giavitto, N Giglietto, F Giordano, A Giuliani, J-F Glicenstein, P Goldoni, J Goulart Coelho, J Granot, D Green, J G Green, M-H Grondin, O Gueta, D Hadasch, P Hamal, T Hassan, K Hayashi, M Heller, S Hernández Cadena, N Hiroshima, B Hnatyk, R Hnatyk, W Hofmann, J Holder, M Holler, D Horan, P Horvath, M Hrabovsky, M Hütten, M Iarlori, T Inada, F Incardona, S Inoue, F Iocco, M Jamrozy, W Jin, I Jung-Richardt, J Juryšek, D Kantzas, V Karas, H Katagiri, D Kerszberg, J Knödlseder, N Komin, P Kornecki, K Kosack, G Kowal, H Kubo, A Lamastra, J Lapington, M Lemoine-Goumard, J-P Lenain, F Leone, G Leto, F Leuschner, E Lindfors, T Lohse, S Lombardi, F Longo, R López-Coto, A López-Oramas, S Loporchio, P L Luque-Escamilla, O Macias, P Majumdar, D Mandat, S Mangano, G Manicò, M Mariotti, P Marquez, G Marsella, J Martí, P Martin, M Martínez, D Mazin, S Menchiari, D M-A Meyer, D Miceli, M Miceli, J Michałowski, A Mitchell, R Moderski, L Mohrmann, M Molero, E Molina, T Montaruli, A Moralejo, D Morcuende, A Morselli, E Moulin, V Moya, R Mukherjee, K Munari, A Muraczewski, S Nagataki, T Nakamori, A Nayak, J Niemiec, M Nievas, M Nikołajuk, K Nishijima, K Noda, D Nosek, B Novosyadlyj, S Nozaki, M Ohishi, S Ohm, A Okumura, B Olmi, R A Ong, M Orienti, R Orito, M Orlandini, E Orlando, S Orlando, M Ostrowski, I Oya, A Pagliaro, M Palatka, F R Pantaleo, R Paoletti, J M Paredes, N Parmiggiani, B Patricelli, M Pech, M Pecimotika, M Persic, O Petruk, E Pierre, E Pietropaolo, G Pirola, M Pohl, E Prandini, C Priyadarshi, G Pühlhofer, M L Pumo, M Punch, F S Queiroz, A Quirrenbach, S Rainò, R Rando, S Razzaque, A Reimer, O Reimer, T Reposeur, M Ribó, T Richtler, J Rico, F Rieger, M Rigoselli, V Rizi, E Roache, G Rodriguez Fernandez, P Romano, G Romeo, J Rosado, A Rosales de Leon, B Rudak, C Rulten, I Sadeh, T Saito, M Sánchez-Conde, H Sano, A Santangelo, R Santos-Lima, S Sarkar, F G Saturni, A Scherer, P Schovanek, F Schussler, U Schwanke, O Sergijenko, M Servillat, H Siejkowski, C Siqueira, S Spencer, A Stamerra, S Stanič, C Steppa, T Stolarczyk, Y Suda, T Tavernier, M Teshima, L Tibaldo, D F Torres, N Tothill, M Vacula, B Vallage, P Vallania, C van Eldik, M Vázquez Acosta, M Vecchi, S Ventura, S Vercellone, A Viana, C F Vigorito, J Vink, V Vitale, V Vodeb, S Vorobiov, T Vuillaume, S J Wagner, R Walter, M White, A Wierzcholska, M Will, R Yamazaki, L Yang, T Yoshikoshi, M Zacharias, G Zaharijas, D Zavrtanik, M Zavrtanik, A A Zdziarski, V I Zhdanov, K Ziętara, M Živec, Joseph Louis LAGRANGE (LAGRANGE), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTH), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), and Cherenkov Telescope Array

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), photon, emission, acceleration, efficiency, Cherenkov Telescope Array, WIMP, diffusion, FOS: Physical sciences, Astronomy and Astrophysics, suppression, sensitivity, Navarro-Frenk-White profile, dark matter, photon, energy, flux, cosmic radiation, spectrum, energy, high, Space and Planetary Science, cloud, TeV, spectral, galaxy, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], nucleus, cosmic radiation
Abstract

A deep survey of the Large Magellanic Cloud at ~0.1-100TeV photon energies with the Cherenkov Telescope Array is planned. We assess the detection prospects based on a model for the emission of the galaxy, comprising the four known TeV emitters, mock populations of sources, and interstellar emission on galactic scales. We also assess the detectability of 30 Doradus and SN 1987A, and the constraints that can be derived on the nature of dark matter. The survey will allow for fine spectral studies of N157B, N132D, LMC P3, and 30 Doradus C, and half a dozen other sources should be revealed, mainly pulsar-powered objects. The remnant from SN 1987A could be detected if it produces cosmic-ray nuclei with a flat power-law spectrum at high energies, or with a steeper index 2.3-2.4 pending a flux increase by a factor >3-4 over ~2015-2035. Large-scale interstellar emission remains mostly out of reach of the survey if its >10GeV spectrum has a soft photon index ~2.7, but degree-scale 0.1-10TeV pion-decay emission could be detected if the cosmic-ray spectrum hardens above >100GeV. The 30 Doradus star-forming region is detectable if acceleration efficiency is on the order of 1-10% of the mechanical luminosity and diffusion is suppressed by two orders of magnitude within, Accepted for publication in MNRAS. Corresponding authors: Pierrick Martin, Maria Isabel Bernardos Martin, Fabio Iocco

Published
2023

21. Cherenkov Telescope Array : the World’s largest VHE gamma-ray observatory

Author

Roberta Zanin, H. Abdalla, H. Abe, S. Abe, A. Abusleme, F. Acero, A. Acharyya, V. Acin Portella, K. Ackley, R. Adam, C. Adams, S.S. Adhikari, I. Aguado Ruesga, I. Agudo, R. Aguilera, A. Aguirre Santaella, F. Aharonian, A. Alberdi, R. Alfaro, J. Alfaro, C. Alispach, R. Aloisio, R. Alves Batista, J.P. Amans, L. Amati, E. Amato, L. Ambrogi, G. Ambrosi, M. Ambrosio, R. Ammendola, J. Anderson, M. Anduze, E.O. Anguner, L.A. Antonelli, V. Antonuccio, P. Antoranz, R. Anutarawiramkul, J. Aragunde Gutierrez, C. Aramo, A. Araudo, M. Araya, A. Arbet Engels, C. Arcaro, V. Arendt, C. Armand, T. Armstrong, F. Arqueros, L. Arrabito, B. Arsioli, M. Artero, K. Asano, Y. Ascasibar, J. Aschersleben, M. Ashley, P. Attina, P. Aubert, C. B. Singh, D. Baack, A. Babic, M. Backes, V. Baena, S. Bajtlik, A. Baktash, C. Balazs, M. Balbo, O. Ballester, J. Ballet, B. Balmaverde, A. Bamba, R. Bandiera, A. Baquero Larriva, P. Barai, C. Barbier, V. Barbosa Martins, M. Barcelo, M. Barkov, M. Barnard, L. Baroncelli, U. Barres de Almeida, J.A. Barrio, D. Bastieri, P.I. Batista, I. Batkovic, C. Bauer, R. Bautista González, J. Baxter, U. Becciani, J. Becerra González, Y. Becherini, G. Beck, J. Becker Tjus, W. Bednarek, A. Belfiore, L. Bellizzi, R. Belmont, W. Benbow, D. Berge, E. Bernardini, M.I. Bernardos, K. Bernlöhr, A. Berti, M. Berton, B. Bertucci, V. Beshley, N. Bhatt, S. Bhattacharyya, W. Bhattacharyya, B. Y. Bi, G. Bicknell, N. Biederbeck, C. Bigongiari, A. Biland, R. Bird, E. Bissaldi, J. Biteau, M. Bitossi, O. Blanch, M. Blank, J. Blazek, J. Bobin, C. Boccato, F. Bocchino, C. Boehm, M. Bohacova, C. Boisson, J. Boix, J.P. Bolle, J. Bolmont, G. Bonanno, C. Bonavolontà, L. Bonneau Arbeletche, G. Bonnoli, P. Bordas, J. Borkowski, R. Bose, D. Bose, Z. Bosnjak, E. Bottacini, Markus Böttcher, M.T. Botticella, C. Boutonnet, F. Bouyjou, V. Bozhilov, E. Bozzo, L. Brahimi, C. Braiding, S. Brau Nogue, S. Breen, J. Bregeon, M. Breuhaus, A. Brill, W. Brisken, E. Brocato, A.M. Brown, K. Brügge, P. Brun, F. 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Hamal, W. Hanlon, Y. Harada, M.J. Hardcastle, M. Harvey Collado, T. Haubold, A. Haupt, M. Havelka, K. Hayashi, M. Hayashida, H. He, L. Heckmann, M. Heller, F. Henault, Gilles Henri, G. Hermann, S. Hernández Cadena, J. Herrera Llorente, O. Hervet, J. Hinton, A. Hiramatsu, K. Hirotani, B. Hnatyk, R. Hnatyk, J.K. Hoang, D. H.H. Hoffmann, C. Hoischen, J. Holder, M. Holler, B. Hona, D. Horan, Dieter Horns, P. Horvath, J. Houles, M. Hrabovsky, D. Hrupec, Y. Huang, J.‑M. Huet, G. Hughes, G. Hull, T.B. Humensky, M. Hütten, M. Iarlori, J.M. Illa, R. Imazawa, T. Inada, F. Incardona, A. Ingallinera, S. Inoue, T. Inoue, Y. Inoue, F. Iocco, K. Ioka, M. Ionica, S. Iovenitti, A. Iriarte, K. Ishio, W. Ishizaki, Y. Iwamura, J. Jacquemier, M. Jacquemont, M. Jamrozy, P. Janecek, F. Jankowsky, A. JardinBlicq, C. Jarnot, P. Jean Martínez, L. Jocou, N. Jordana, M. Josselin, I. JungRichardt, F.J.P.A. Junqueira, C. Juramy Gilles, P. Kaaret, L.H.S. Kadowaki, M. Kagaya, R. Kankanyan, D. Kantzas, V. Karas, A. 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Maccarone, E. Mach, A.J. Maciejewski, J. Mackey, P. Maeght, C. Maggio, G. Maier, P. Majumdar, M. Makariev, M. Mallamaci, R. Malta Nunes de Almeida, D. Malyshev, D. Mandat, G. Maneva, M. Manganaro, P. Manigot, K. Mannheim, N. Maragos, D. Marano, M. Marconi, A. Marcowith, M. Marculewicz, B. Marcun, J. Marin, N. Marinello, P. Marinos, S. Markoff, P. Marquez, G. Marsella, J. M. Martin, P. G. Martin, M. Martinez, G. Martinez, O. Martinez, H. Martinez Huerta, C. Marty, R. Marx, N. Masetti, P. Massimino, H. Matsumoto, N. Matthews, G. Maurin, W. Max Moerbeck, N. Maxted, M.N. Mazziotta, S.M. Mazzola, J.D. Mbarubucyeye, L. Mc Comb, I. McHardy, S. McKeague, S. McMuldroch, E. Medina, D. Medina Miranda, A. Melandri, C. Melioli, D. Melkumyan, S. Menchiari, S. Mereghetti, G. Merino Arevalo, E. Mestre, J.L. Meunier, T. Meures, S. Micanovic, M. Miceli, M. Michailidis, J. Michalowski, T. Miener, I. Mievre, J. D. Miller, T. Mineo, M. Minev, J.M. Miranda, A. Mitchell, T. Mizuno, B. A. Mode, R. Moderski, L. Mohrmann, E. Molinari, T. Montaruli, I. Monteiro, C. Moore, A. Moralejo, D. Morcuende Parrilla, E. Moretti, K. Mori, P. Moriarty, K. Morik, P. Morris, A. Morselli, K. Mosshammer, R. Mukherjee, J. Muller, C. Mundell, J. Mundet, T. Murach, A. Muraczewski, H. Muraishi, I. Musella, A. Musumarra, A. Nagai, S. Nagataki, T. Naito, T. Nakamori, K. Nakashima, K. Nakayama, N. Nakhjiri, G. Naletto, D. Naumann, L. Nava, M.A. Nawaz, H. Ndiyavala, D. Neise, L. Nellen, R. Nemmen, N. Neyroud, K. Ngernphat, T. Nguyen Trung, L. Nicastro, L. Nickel, J. Niemiec, D. Nieto, C. Nigro, M. Nikołajuk, D. Ninci, K. Noda, Y. Nogami, S. Nolan, R. P. Norris, D. Nosek, M. Nöthe, V. Novotny, S. Nozaki, F. Nunio, P. O'Brien, K. Obara, Y. Ohira, M. Ohishi, S. Ohm, T. Oka, N. Okazaki, A. Okumura, C. Oliver, G. Olivera, B. Olmi, M. Orienti, R. Orito, M. Orlandini, E. Orlando, J.P. Osborne, M. Ostrowski, N. Otte, E. Ovcharov, E. Owen, I. Oya, A. Ozieblo, M. Padovani, A. Pagliaro, A. Paizis, M. Palatiello, M. 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Wakazono, S.P. Wakely, M. Ward, D. Warren, J. Watson, M. Wechakama, P. Wegner, A. Weinstein, C. Weniger, F. Werner, H. Wetteskind, M. L. White, A. Wierzcholska, S. Wiesand, R. Wijers, M. Wilkinson, M. Will, J. Williams, T. J. Williamson, A. Wolter, Y.W. Wong, M. Wood, T. Yamamoto, H. Yamamoto, Y. Yamane, R. Yamazaki, S. Yanagita, L. Yang, S. Yoo, T. Yoshida, T. Yoshikoshi, P. Yu, A. Yusafzai, Michael Zacharias, B. Zaldivar, L. Zampieri, R. Zanin, R. Zanmar Sanchez, D. Zaric, M. Zavrtanik, D. Zavrtanik, Andrzej Zdziarski, A. Zech, H. Zechlin, A. Zenin, A. Zerwekh, K. Ziętara, A. Zink, J. Ziolkowski, M. Zivec, A. Zmija, Współautorami artykułu są członkowie CTA Observatory, CTA Consortium i LST Collaboration w liczbie 1139, Astronomy, Research unit Nuclear & Hadron Physics, and Research unit Astroparticle Physics

Subjects
Physics, Observatory, Gamma ray, Astronomy
Abstract

Very-high Energy (VHE) gamma-ray astroparticle physics is a relatively young field, and observations over the past decade have surprisingly revealed almost two hundred VHE emitters which appear to act as cosmic particle accelerators. These sources are an important component of the Universe, influencing the evolution of stars and galaxies. At the same time, they also act as a probe of physics in the most extreme environments known - such as in supernova explosions, and around or after the merging of black holes and neutron stars. However, the existing experiments have provided exciting glimpses, but often falling short of supplying the full answer. A deeper understanding of the TeV sky requires a significant improvement in sensitivity at TeV energies, a wider energy coverage from tens of GeV to hundreds of TeV and a much better angular and energy resolution with respect to the currently running facilities. The next generation gamma-ray observatory, the Cherenkov Telescope Array Observatory (CTAO), is the answer to this need. In this talk I will present this upcoming observatory from its design to the construction, and its potential science exploitation. CTAO will allow the entire astronomical community to explore a new discovery space that will likely lead to paradigm-changing breakthroughs. In particular, CTA has an unprecedented sensitivity to short (sub-minute) timescale phenomena, placing it as a key instrument in the future of multi-messenger and multi-wavelength time domain astronomy. I will conclude the talk presenting the first scientific results obtained by the LST-1, the prototype of one CTAO telescope type - the Large-Sized Telescope, that is currently under commission., PoS: Proceedings of Science, 395, ISSN:1824-8039, Proceedings of 37th International Cosmic Ray Conference (ICRC2021)

Published
2022

22. Design, upgrade and characterization of the silicon photomultiplier front-end for the AMIGA detector at the Pierre Auger Observatory

Author

Silvia Mollerach, N. Fazzini, Jonas Glombitza, F. C. T. Barbato, D. Zavrtanik, Serguei Vorobiov, J. Kleinfeller, Marcos Cerda, Denis Stanca, D. Melo, W. M. Namasaka, L. Lopes, A. C. Rovero, Alexandru Balaceanu, Carla Aramo, Julien Souchard, D. Martello, O. Martínez Bravo, K. Mulrey, Carla Bleve, Rodrigo Guedes Lang, Jaime Alvarez-Muñiz, Kevin-Druis Merenda, Alexandru Gherghel-Lascu, E. Santos, Thomas Bretz, Tiina Suomijarvi, V. Rizi, Corbin Covault, Vladimir Lenok, J. Stasielak, P. Tobiska, L. Perrone, L. Valore, R. Sato, Lino Miramonti, D. de Oliveira Franco, Lukáš Vaclavek, G. Mancarella, G. Marsella, A. Weindl, P. Savina, W. Rodrigues de Carvalho, Teresa Bister, Dalibor Nosek, M. Schimp, B. C. Manning, G. P. Guedes, Bjarni Pont, Luis A. Anchordoqui, A. Di Matteo, Marvin Gottowik, B. Keilhauer, P. Abreu, D. Ravignani, Alessio Gorgi, Maximilian Reininghaus, Flavia Gesualdi, Dusan Mandat, Sullivan Marafico, M. Risse, Orazio Zapparrata, Francesco Fenu, Ralf Ulrich, B. Wundheiler, Paul Sommers, Patricia María Hansen, Philipp Papenbreer, E. M. Santos, Eric Mayotte, Toshihiro Fujii, S. J. Sciutto, Juan Miguel Carceller, David Schmidt, J. Perez Armand, M. Gómez Berisso, S. Schröder, Italo Epicoco, Kai Daumiller, F. Sánchez, Marco Giammarchi, Nataliia Borodai, Christian Sarmiento-Cano, G. Parente, Fabrizia Canfora, K. Choi, L. Zehrer, Miroslav Pech, M. Pothast, Valerio Pirronello, C. J.W.P. Timmermans, C. M. Schäfer, C. J. Todero Peixoto, J. F. Valdés Galicia, I. De Mitri, Denise Boncioli, Jakub Juryšek, J. Debatin, Antonio Condorelli, Carola Dobrigkeit, M. Muzio, J. de Oliveira, Martin Vacula, Marcel Köpke, M. Platino, R. Alves Batista, Bruce R. Dawson, Trent D. Grubb, D. Nitz, Alejandro Almela, P. Horvath, J. Chudoba, P.O. Mazur, Darko Veberič, Julian Kemp, B. Andrada, A.L. Garcia Vegas, Sofia Andringa, M. A. Muller, A. Aab, G. Cataldi, Michael Prouza, Fred Sarazin, F. Riehn, T. Huege, Marina Scornavacche, A. Tapia, B. Tome, Josina Schulte, Alex Kääpä, Martina Bohacova, L. Nožka, G. De Mauro, F. Guarino, John Matthews, Peter Buchholz, Steffen Hahn, Claudio Galelli, Juan Carlos D'Olivo, T. Pierog, Juan Manuel Figueira, Mario Buscemi, L. R. Wiencke, Niklas Langner, Roberta Colalillo, Heino Falcke, V. Scherini, Maria Rita Coluccia, Jeffrey Brack, Olaf Scholten, Octavian Sima, Marco Aglietta, Marko Zavrtanik, H. Schieler, Esteban Roulet, A. G. Mariazzi, Justin M. Albury, Humberto Ibarguen Salazar, Hernán Asorey, M. I. Micheletti, Karl-Heinz Kampert, Antonella Castellina, Jonathan Biteau, J. Vicha, G. Farrar, Juan Pablo Gongora, K.-H. Becker, Nicolás González, Jose Chinellato, Alan Watson, H. Wilczyński, M. Suárez-Durán, Xavier Bertou, M. Perlin, Matias Tueros, Mihai Niculescu-Oglinzanu, M. Pimenta, I. Lhenry-Yvon, Jiri Blazek, E. De Vito, Giovanni Consolati, A. Zepeda, Gaetano Salina, Violet M. Harvey, D. Harari, Luis A. Nunez, Pedro Assis, P.R. Araújo Ferreira, Brian Fick, Piera Luisa Ghia, D. Lo Presti, S. J. De Jong, C. O. Escobar, A. Insolia, M. Kleifges, A.D. Supanitsky, H. Martinez, A. Etchegoyen, Marcus Niechciol, A. Taboada, J. Pȩkala, A. Fuster, Miguel Mostafa, Frank G. Schröder, Jarryd A. Day, A. Saftoiu, R.J. Barreira Luz, Tobias Winchen, Julien Manshanden, R. Conceição, A. Puyleart, Corinne Berat, M. Giller, Petr Schovanek, A.C. Cobos Cerutti, P.F. Gómez Vitale, Alina Mihaela Badescu, S. Querchfeld, Andres Travaini, E. Varela, J.D. Sanabria Gomez, Olena Tkachenko, V. Novotny, Ioana Caracas, Cristina Galea, J. R. T. de Mello Neto, L. Bonneau Arbeletche, A. Haungs, Rossella Caruso, A. Lucero, Fernando Catalani, J. Šupík, Carlo Ventura, Florian Lukas Briechle, Massimo Mastrodicasa, P. Ruehl, M. Schimassek, Caterina Trimarelli, Alena Bakalova, C. Hojvat, Jan Ebr, Ladislav Chytka, Samo Stanič, M. E. Bertaina, Markus Roth, M. HrabovskÃ, Jon Paul Lundquist, A. Menshikov, J. Hulsman, Juan Manuel González, P. Mantsch, B. L. Lago, P. Travnicek, Jacco Vink, H. Gemmeke, M. Unger, Jeffrey A. Johnsen, Z. Szadkowski, Gaia Silli, Isabel Goos, R. Squartini, A. Filipčič, D. Heck, Alfred Müller, H.O. Klages, Thomas Hebbeker, Sergio Dasso, Tristan Sudholz, S. Petrera, Marc Weber, A. Letessier-Selvon, Paula Gina Isar, M. del Río, Günter Sigl, Martín Miguel Freire, Roberto Mussa, P. Stassi, Radomir Smida, G. Medina-Tanco, A. A. Nucita, J. Rautenberg, A. Machado Payeras, B. García, R.C. Shellard, Q. Luce, F. Salamida, Maximilian Stadelmaier, R. López, Karen S. Caballero-Mora, R. M. de Almeida, A. Yushkov, Lorenzo Caccianiga, Lorenzo Cazon, G. Golup, Rodrigo Pelayo, Stijn Buitink, Martin Erdmann, François Montanet, J. de Jesús, A. Streich, Gioacchino Alex Anastasi, M. Wirtz, Eleonora Guido, Valerio Verzi, L. Nellen, Roger W Clay, Fernando Gollan, C. Morello, V. de Souza, Peter L. Biermann, Paolo Privitera, David Wittkowski, Olivier Deligny, Tomáš Fodran, Ugo Giaccari, Ioana Codrina Maris, A. C. Fauth, Carla Bonifazi, Jose A. Bellido, Fabio Convenga, G. C. Hill, I.D. Vergara Quispe, Jorge F. Soriano, Hernan Wahlberg, Ralph Engel, A. Parra, P. Ristori, M. Trini, I. Allekotte, M. J. Roncoroni, J. Pallotta, J. Ridky, A. M. Botti, Jörg R. Hörandel, H. J. Mathes, Stanislav Michal, J. Rodriguez Rojo, G. Matthiae, Fridtjof Feldbusch, Enrique Zas, Antonio Bueno, Fernando Contreras, Gualberto Avila, Dariusz Gora, John Farmer, Alan Coleman, Maria-Teresa Dova, M. R. Hampel, S. J. Saffi, F. Pedreira, Raul Sarmento, R.C. dos Anjos, Felix Schlüter, Adriana Vásquez-Ramírez, M. Palatka, Fabian Gobbi, Jesús Peña-Rodríguez, M.A. Leigui de Oliveira, High Energy Astrophys. & Astropart. Phys (API, FNWI), Aab, A., Abreu, P., Aglietta, M., Albury, J. M., Allekotte, I., Almela, A., Alvarez-Muniz, J., Alves Batista, R., Anastasi, G. A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Araujo Ferreira, P. R., Asorey, H., Assis, P., Avila, G., Badescu, A. M., Bakalova, A., Balaceanu, A., Barbato, F., Barreira Luz, R. J., Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermann, P. L., Bister, T., Biteau, J., Blazek, J., Bleve, C., Bohacova, M., Boncioli, D., Bonifazi, C., Bonneau Arbeletche, L., Borodai, N., Botti, A. M., Brack, J., Bretz, T., Briechle, F. L., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero-Mora, K. S., Caccianiga, L., Canfora, F., Caracas, I., Carceller, J. M., Caruso, R., Castellina, A., Catalani, F., Cataldi, G., Cazon, L., Cerda, M., Chinellato, J. A., Choi, K., Chudoba, J., Chytka, L., Clay, R. W., Cobos Cerutti, A. C., Colalillo, R., Coleman, A., Coluccia, M. R., Conceicao, R., Condorelli, A., Consolati, G., Contreras, F., Convenga, F., Covault, C. E., Dasso, S., Daumiller, K., Dawson, B. R., Day, J. A., de Almeida, R. M., de Jesus, J., de Jong, S. J., de Mauro, G., de Mello Neto, J. R. T., de Mitri, I., de Oliveira, J., de Oliveira Franco, D., de Souza, V., de Vito, E., Debatin, J., del Rio, M., Deligny, O., Di Matteo, A., Dobrigkeit, C., D'Olivo, J. C., dos Anjos, R. C., Dova, M. T., Ebr, J., Engel, R., Epicoco, I., Erdmann, M., Escobar, C. O., Etchegoyen, A., Falcke, H., Farmer, J., Farrar, G., Fauth, A. C., Fazzini, N., Feldbusch, F., Fenu, F., Fick, B., Figueira, J. M., Filipcic, A., Fodran, T., Freire, M. M., Fujii, T., Fuster, A., Galea, C., Galelli, C., Garcia, B., Garcia Vegas, A. L., Gemmeke, H., Gesualdi, F., Gherghel-Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glombitza, J., Gobbi, F., Gollan, F., Golup, G., Gomez Berisso, M., Gomez Vitale, P. F., Gongora, J. P., Gonzalez, J. M., Gonzalez, N., Goos, I., Gora, D., Gorgi, A., Gottowik, M., Grubb, T. D., Guarino, F., Guedes, G. P., Guido, E., Hahn, S., Hampel, M. R., Hansen, P., Harari, D., Harvey, V. M., Haungs, A., Hebbeker, T., Heck, D., Hill, G. C., Hojvat, C., Horandel, J. R., Horvath, P., Hrabovsky, M., Huege, T., Hulsman, J., Insolia, A., Isar, P. G., Johnsen, J. A., Jurysek, J., Kaapa, A., Kampert, K. H., Keilhauer, B., Kemp, J., Klages, H. O., Kleifges, M., Kleinfeller, J., Kopke, M., Lago, B. L., Lang, R. G., Langner, N., Leigui de Oliveira, M. A., Lenok, V., Letessier-Selvon, A., Lhenry-Yvon, I., Lo Presti, D., Lopes, L., Lopez, R., Luce, Q., Lucero, A., Lundquist, J. P., Machado Payeras, A., Mancarella, G., Mandat, D., Manning, B. C., Manshanden, J., Mantsch, P., Marafico, S., Mariazzi, A. G., Maris, I. C., Marsella, G., Martello, D., Martinez, H., Martinez Bravo, O., Mastrodicasa, M., Mathes, H. J., Matthews, J., Matthiae, G., Mayotte, E., Mazur, P. O., Medina-Tanco, G., Melo, D., Menshikov, A., Merenda, K. -D., Michal, S., Micheletti, M. I., Miramonti, L., Mollerach, S., Montanet, F., Morello, C., Mostafa, M., Muller, A. L., Muller, M. A., Mulrey, K., Mussa, R., Muzio, M., Namasaka, W. M., Nellen, L., Niculescu-Oglinzanu, M., Niechciol, M., Nitz, D., Nosek, D., Novotny, V., Nozka, L., Nucita, A., Nunez, L. A., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Pech, M., Pedreira, F., Pekala, J., Pelayo, R., Pena-Rodriguez, J., Perez Armand, J., Perlin, M., Perrone, L., Petrera, S., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Pont, B., Pothast, M., Privitera, P., Prouza, M., Puyleart, A., Querchfeld, S., Rautenberg, J., Ravignani, D., Reininghaus, M., Ridky, J., Riehn, F., Risse, M., Ristori, P., Rizi, V., Rodrigues de Carvalho, W., Rodriguez Rojo, J., Roncoroni, M. J., Roth, M., Roulet, E., Rovero, A. C., Ruehl, P., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Salina, G., Sanabria Gomez, J. D., Sanchez, F., Santos, E. M., Santos, E., Sarazin, F., Sarmento, R., Sarmiento-Cano, C., Sato, R., Savina, P., Schafer, C. M., Scherini, V., Schieler, H., Schimassek, M., Schimp, M., Schluter, F., Schmidt, D., Scholten, O., Schovanek, P., Schroder, F. G., Schroder, S., Schulte, J., Sciutto, S. J., Scornavacche, M., Shellard, R. C., Sigl, G., Silli, G., Sima, O., Smida, R., Sommers, P., Soriano, J. F., Souchard, J., Squartini, R., Stadelmaier, M., Stanca, D., Stanic, S., Stasielak, J., Stassi, P., Streich, A., Suarez-Duran, M., Sudholz, T., Suomijarvi, T., Supanitsky, A. D., Supik, J., Szadkowski, Z., Taboada, A., Tapia, A., Timmermans, C., Tkachenko, O., Tobiska, P., Todero Peixoto, C. J., Tome, B., Travaini, A., Travnicek, P., Trimarelli, C., Trini, M., Tueros, M., Ulrich, R., Unger, M., Vaclavek, L., Vacula, M., Valdes Galicia, J. F., Valore, L., Varela, E., Varma, V. K. C., Vasquez-Ramirez, A., Veberic, D., Ventura, C., Vergara Quispe, I. D., Verzi, V., Vicha, J., Vink, J., Vorobiov, S., Wahlberg, H., Watson, A. A., Weber, M., Weindl, A., Wiencke, L., Wilczynski, H., Winchen, T., Wirtz, M., Wittkowski, D., Wundheiler, B., Yushkov, A., Zapparrata, O., Zas, E., Zavrtanik, D., Zavrtanik, M., Zehrer, L., Zepeda, A., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Pierre Auger, Physics, Aab A., Abreu P., Aglietta M., Albury J.M., Allekotte I., Almela A., Alvarez-Muniz J., Alves Batista R., Anastasi G.A., Anchordoqui L., Andrada B., Andringa S., Aramo C., Araujo Ferreira P.R., Asorey H., Assis P., Avila G., Badescu A.M., Bakalova A., Balaceanu A., Barbato F., Barreira Luz R.J., Becker K.H., Bellido J.A., Berat C., Bertaina M.E., Bertou X., Biermann P.L., Bister T., Biteau J., Blazek J., Bleve C., Bohacova M., Boncioli D., Bonifazi C., Bonneau Arbeletche L., Borodai N., Botti A.M., Brack J., Bretz T., Briechle F.L., Buchholz P., Bueno A., Buitink S., Buscemi M., Caballero-Mora K.S., Caccianiga L., Canfora F., Caracas I., Carceller J.M., Caruso R., Castellina A., Catalani F., Cataldi G., Cazon L., Cerda M., Chinellato J.A., Choi K., Chudoba J., Chytka L., Clay R.W., Cobos Cerutti A.C., Colalillo R., Coleman A., Coluccia M.R., Conceicao R., Condorelli A., Consolati G., Contreras F., Convenga F., Covault C.E., Dasso S., Daumiller K., Dawson B.R., Day J.A., de Almeida R.M., de Jesus J., de Jong S.J., de Mauro G., de Mello Neto J.R.T., de Mitri I., de Oliveira J., de Oliveira Franco D., de Souza V., de Vito E., Debatin J., del Rio M., Deligny O., Di Matteo A., Dobrigkeit C., D'Olivo J.C., dos Anjos R.C., Dova M.T., Ebr J., Engel R., Epicoco I., Erdmann M., Escobar C.O., Etchegoyen A., Falcke H., Farmer J., Farrar G., Fauth A.C., Fazzini N., Feldbusch F., Fenu F., Fick B., Figueira J.M., Filipcic A., Fodran T., Freire M.M., Fujii T., Fuster A., Galea C., Galelli C., Garcia B., Garcia Vegas A.L., Gemmeke H., Gesualdi F., Gherghel-Lascu A., Ghia P.L., Giaccari U., Giammarchi M., Giller M., Glombitza J., Gobbi F., Gollan F., Golup G., Gomez Berisso M., Gomez Vitale P.F., Gongora J.P., Gonzalez J.M., Gonzalez N., Goos I., Gora D., Gorgi A., Gottowik M., Grubb T.D., Guarino F., Guedes G.P., Guido E., Hahn S., Hampel M.R., Hansen P., Harari D., Harvey V.M., Haungs A., Hebbeker T., Heck D., Hill G.C., Hojvat C., Horandel J.R., Horvath P., Hrabovsky M., Huege T., Hulsman J., Insolia A., Isar P.G., Johnsen J.A., Jurysek J., Kaapa A., Kampert K.H., Keilhauer B., Kemp J., Klages H.O., Kleifges M., Kleinfeller J., Kopke M., Lago B.L., Lang R.G., Langner N., Leigui de Oliveira M.A., Lenok V., Letessier-Selvon A., Lhenry-Yvon I., Lo Presti D., Lopes L., Lopez R., Luce Q., Lucero A., Lundquist J.P., Machado Payeras A., Mancarella G., Mandat D., Manning B.C., Manshanden J., Mantsch P., Marafico S., Mariazzi A.G., Maris I.C., Marsella G., Martello D., Martinez H., Martinez Bravo O., Mastrodicasa M., Mathes H.J., Matthews J., Matthiae G., Mayotte E., Mazur P.O., Medina-Tanco G., Melo D., Menshikov A., Merenda K.-D., Michal S., Micheletti M.I., Miramonti L., Mollerach S., Montanet F., Morello C., Mostafa M., Muller A.L., Muller M.A., Mulrey K., Mussa R., Muzio M., Namasaka W.M., Nellen L., Niculescu-Oglinzanu M., Niechciol M., Nitz D., Nosek D., Novotny V., Nozka L., Nucita A., Nunez L.A., Palatka M., Pallotta J., Papenbreer P., Parente G., Parra A., Pech M., Pedreira F., Pekala J., Pelayo R., Pena-Rodriguez J., Perez Armand J., Perlin M., Perrone L., Petrera S., Pierog T., Pimenta M., Pirronello V., Platino M., Pont B., Pothast M., Privitera P., Prouza M., Puyleart A., Querchfeld S., Rautenberg J., Ravignani D., Reininghaus M., Ridky J., Riehn F., Risse M., Ristori P., Rizi V., Rodrigues de Carvalho W., Rodriguez Rojo J., Roncoroni M.J., Roth M., Roulet E., Rovero A.C., Ruehl P., Saffi S.J., Saftoiu A., Salamida F., Salazar H., Salina G., Sanabria Gomez J.D., Sanchez F., Santos E.M., Santos E., Sarazin F., Sarmento R., Sarmiento-Cano C., Sato R., Savina P., Schafer C.M., Scherini V., Schieler H., Schimassek M., Schimp M., Schluter F., Schmidt D., Scholten O., Schovanek P., Schroder F.G., Schroder S., Schulte J., Sciutto S.J., Scornavacche M., Shellard R.C., Sigl G., Silli G., Sima O., Smida R., Sommers P., Soriano J.F., Souchard J., Squartini R., Stadelmaier M., Stanca D., Stanic S., Stasielak J., Stassi P., Streich A., Suarez-Duran M., Sudholz T., Suomijarvi T., Supanitsky A.D., Supik J., Szadkowski Z., Taboada A., Tapia A., Timmermans C., Tkachenko O., Tobiska P., Todero Peixoto C.J., Tome B., Travaini A., Travnicek P., Trimarelli C., Trini M., Tueros M., Ulrich R., Unger M., Vaclavek L., Vacula M., Valdes Galicia J.F., Valore L., Varela E., Varma V.K.C., Vasquez-Ramirez A., Veberic D., Ventura C., Vergara Quispe I.D., Verzi V., Vicha J., Vink J., Vorobiov S., Wahlberg H., Watson A.A., Weber M., Weindl A., Wiencke L., Wilczynski H., Winchen T., Wirtz M., Wittkowski D., Wundheiler B., Yushkov A., Zapparrata O., Zas E., Zavrtanik D., Zavrtanik M., Zehrer L., Zepeda A., and Research unit Astroparticle Physics

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astronomy, Performance of High Energy Physics Detector, 01 natural sciences, 7. Clean energy, Etc), 030218 nuclear medicine & medical imaging, 0302 clinical medicine, Front-end electronics for detector readout, APDs, Instrumentation, physics.ins-det, Photon detectors for UV, Mathematical Physics, Instrumentation et méthodes en physique, EBCCDs, Visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs, CMOS imagers, etc), electronics, Settore FIS/01 - Fisica Sperimentale, Calibration and fitting methods, Performance of High Energy Physics Detectors, Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs, CMOS imagers, etc), Astrophysics::Instrumentation and Methods for Astrophysics, Si-PMTs, Instrumentation and Detectors (physics.ins-det), charged particle, CCDs, Cluster finding, CMOS imagers, EMCCDs, Pattern recognition, G-APDs, Visible and IR photons (solid-state) (PIN diodes, Auger, observatory, density [muon], Pattern recognition, cluster finding, calibration and fitting method, Christian ministry, upgrade, ddc:620, Astrophysics - Instrumentation and Methods for Astrophysics, performance, atmosphere [showers], Land access, Cherenkov counter: water, air, Astrophysics::High Energy Astrophysical Phenomena, UHE [cosmic radiation], FOS: Physical sciences, 03 medical and health sciences, Political science, 0103 physical sciences, muon: density, photomultiplier: silicon, High Energy Physics, cosmic radiation: UHE, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], ddc:610, Instrumentation and Methods for Astrophysics (astro-ph.IM), Engineering & allied operations, scintillation counter, showers: atmosphere, 010308 nuclear & particles physics, water [Cherenkov counter], Autres mathématiques, Research council, efficiency, Experimental High Energy Physics, silicon [photomultiplier], High Energy Physics::Experiment, Humanities, RAIOS CÓSMICOS, astro-ph.IM
Abstract

The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargue. We are very grateful to the following agencies and organizations for financial support: Argentina -Comision Nacional de Energia Atomica; Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT); Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET); Gobierno de la Provincia de Mendoza; Municipalidad de Malargue; NDM Holdings and Valle Las Lenas; in gratitude for their continuing cooperation over land access; Australia -the Australian Research Council; Brazil -Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq); Financiadora de Estudos e Projetos (FINEP); Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ); Sao Paulo Research Foundation (FAPESP) Grants No. 2019/10151-2, No. 2010/07359-6 and No. 1999/05404-3; Ministerio da Ciencia, Tecnologia, Inovacoes e Comunicacoes (MCTIC); Czech Republic Grant No. MSMT CR LTT18004, LM2015038, LM2018102, CZ.02.1.01/0.0/0.0/16_013/0001402, CZ.02.1.01/0.0/0.0/18_046/0016010 and CZ.02.1.01/0.0/0.0/17_049/0008422; France -Centre de Calcul IN2P3/CNRS; Centre National de la Recherche Scientifique (CNRS); Conseil Regional Ile-de-France; Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS); Departement Sciences de l'Univers (SDU-INSU/CNRS); Institut Lagrange de Paris (ILP) Grant No. LABEX ANR-10-LABX-63 within the Investissements d'Avenir Programme Grant No. ANR-11-IDEX-0004-02; Germany-Bundesministerium fur Bildung und Forschung (BMBF); Deutsche Forschungsgemeinschaft (DFG); Finanzministerium Baden-Wurttemberg; Helmholtz Alliance for Astroparticle Physics (HAP); Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF); Ministerium fur Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen; Ministerium fur Wissenschaft, Forschung und Kunst des Landes Baden-Wurttemberg; Italy-Istituto Nazionale di Fisica Nucleare (INFN); Istituto Nazionale di Astrofisica (INAF); Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR); CETEMPS Center of Excellence; Ministero degli Affari Esteri (MAE); Mexico-Consejo Nacional de Ciencia y Tecnologia (CONACYT) No. 167733; Universidad Nacional Autonoma de Mexico (UNAM); PAPIIT DGAPA-UNAM; The Netherlands -Ministry of Education, Culture and Science; Netherlands Organisation for Scientific Research (NWO); Dutch national e-infrastructure with the support of SURF Cooperative; Poland-Ministry of Science and Higher Education, grant No. DIR/WK/2018/11; National Science Centre, Grants No. 2013/08/M/ST9/00322, No. 2016/23/B/ST9/01635 and No. HARMONIA 5-2013/10/M/ST9/00062, UMO-2016/22/M/ST9/00198; Portugal -Portuguese national funds and FEDER funds within Programa Operacional Factores de Competitividade through Fundacao para a Ciencia e a Tecnologia (COMPETE); Romania-Romanian Ministry of Education and Research, the Program Nucleu within MCI(PN19150201/16N/2019 and PN19060102) and project PN-III-P1-1.2-PCCDI-2017-0839/19PCCDI/2018 within PNCDI III; Slovenia -Slovenian Research Agency, grants P1-0031, P1-0385, I0-0033, N1-0111; Spain-Ministerio de Economia, Industria y Competitividad (FPA2017-85114-P and FPA2017-85197-P), Xunta de Galicia (ED431C 2017/07), Junta de Andalucia (SOMM17/6104/UGR), Feder Funds, RENATA Red Nacional Tematica de Astroparticulas (FPA2015-68783-REDT) and Maria de Maeztu Unit of Excellence (MDM-2016-0692); U.S.A. -Department of Energy, Contracts No. DE-AC02-07CH11359, No. DE-FR02-04ER41300, No. DE-FG02-99ER41107 and No. DE-SC0011689; National Science Foundation, Grant No. 0450696; The Grainger Foundation; Marie Curie-IRSES/EPLANET; European Particle Physics Latin American Network; and UNESCO., AMIGA (Auger Muons and Infill for the Ground Array) is an upgrade of the Pierre Auger Observatory to complement the study of ultra-high-energy cosmic rays (UHECR) by measuring the muon content of extensive air showers (EAS). It consists of an array of 61 water Cherenkov detectors on a denser spacing in combination with underground scintillation detectors used for muon density measurement. Each detector is composed of three scintillation modules, with 10 m(2) detection area per module, buried at 2.3 m depth, resulting in a total detection area of 30 m(2). Silicon photomultiplier sensors (SiPM) measure the amount of scintillation light generated by charged particles traversing the modules. In this paper, the design of the front-end electronics to process the signals of those SiPMs and test results from the laboratory and from the Pierre Auger Observatory are described. Compared to our previous prototype, the new electronics shows a higher performance, higher efficiency and lower power consumption, and it has a new acquisition system with increased dynamic range that allows measurements closer to the shower core. The new acquisition system is based on the measurement of the total charge signal that the muonic component of the cosmic ray shower generates in the detector., Argentina - Comision Nacional de Energia Atomica, Argentina - Agencia Nacional de Promocion Cientifica y Tecnologica (ANPCyT), Argentina - Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Argentina - Gobierno de la Provincia de Mendoza, Argentina - Municipalidad de Malargue, Argentina - NDM Holdings, Argentina - Valle Las Lenas, Australian Research Council, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) Fundacao de Apoio a Pesquisa do Distrito Federal (FAPDF) Brazil - Financiadora de Estudos e Projetos (FINEP), Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio De Janeiro (FAPERJ), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) 2019/10151-2 2010/07359-6 1999/05404-3, Brazil - Ministerio da Ciencia, Tecnologia, Inovacoes e Comunicacoes (MCTIC), Brazil - Czech Republic Grant MSMT CR LTT18004 LM2015038 LM2018102 CZ.02.1.01/0.0/0.0/16_013/0001402 CZ.02.1.01/0.0/0.0/18_046/0016010 CZ.02.1.01/0.0/0.0/17_049/0008422, France - Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), France - Conseil Regional Ile-de-France, France - Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), France - Departement Sciences de l'Univers (SDU-INSU/CNRS), French National Research Agency (ANR) LABEX ANR-10-LABX-63, Institut Lagrange de Paris (ILP) within the Investissements d'Avenir Programme ANR-11-IDEX-0004-02, Federal Ministry of Education & Research (BMBF), Bundesministerium fur Bildung und Forschung (BMBF), German Research Foundation (DFG), Germany - Finanzministerium Baden-Wurttemberg, Germany - Helmholtz Alliance for Astroparticle Physics (HAP), Germany - Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Germany - Ministerium fur Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen, Germany - Ministerium fur Wissenschaft, Forschung und Kunst des Landes Baden-Wurttemberg, Italy - Istituto Nazionale di Fisica Nucleare (INFN), Italy - Istituto Nazionale di Astrofisica (INAF), Italy - Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy - CETEMPS Center of Excellence, Consejo Nacional de Ciencia y Tecnologia (CONACyT) 167733, Mexico - Universidad Nacional Autonoma de Mexico (UNAM), Mexico - PAPIIT DGAPA-UNAM, Netherlands - Ministry of Education, Culture and Science, Netherlands Organization for Scientific Research (NWO), Netherlands Organisation for Scientific Research (NWO), The Netherlands - SURF Cooperative, Poland - Ministry of Science and Higher Education DIR/WK/2018/11 Poland - National Science Centre 2013/08/M/ST9/00322 2016/23/B/ST9/01635 HARMONIA 5-2013/10/M/ST9/00062 UMO-2016/22/M/ST9/00198, Portugal - Portuguese national funds Portugal - FEDER funds within Programa Operacional Factores de Competitividade through Fundacao para a Ciencia e a Tecnologia (COMPETE), Romania - Romanian Ministry of Education and Research Romania - Program Nucleu within MCI PN19150201/16N/2019 PN19060102 Romania - PNCDI III PN-III-P1-1.2-PCCDI-2017-0839/19PCCDI/2018, Slovenian Research Agency - Slovenia P1-0031 P1-0385 I0-0033 N1-0111, Spain - Ministerio de Economia, Industria y Competitividad FPA2017-85114-P FPA2017-85197-P, Spain - Xunta de Galicia ED431C 2017/07, Junta de Andalucia SOMM17/6104/UGR, Spain - Feder Funds, Spain - RENATA Red Nacional Tematica de Astroparticulas FPA2015-68783-REDT, Spain - Maria de Maeztu Unit of Excellence MDM-2016-0692, United States Department of Energy (DOE) DE-AC02-07CH11359, National Science Foundation (NSF) 0450696, U.S.A. - Grainger Foundation U.S.A. - Marie Curie-IRSES/EPLANET U.S.A. - European Particle Physics Latin American Network U.S.A. - UNESCO, Italy - Ministero degli Affari Esteri (MAE), The Netherlands - Dutch national e-infrastructure

Published
2021

23. Studies on the response of a water-Cherenkov detector of the Pierre Auger Observatory to atmospheric muons using an RPC hodoscope

Author

A. Zepeda, Pedro Assis, H. Martinez, A. Etchegoyen, Dariusz Gora, Bjarni Pont, Alan Coleman, B. Tome, Peter Hansen, F. Guarino, John Matthews, Peter Buchholz, S. J. Saffi, D. Lo Presti, S. J. De Jong, B. García, R. López, Karen S. Caballero-Mora, G. Cataldi, V. Scherini, Martin Erdmann, G. Matthiae, J. de Jesús, Frank G. Schröder, Antonio Bueno, A. Streich, Gioacchino Alex Anastasi, M. Wirtz, Thomas Hebbeker, Sergio Dasso, Tristan Sudholz, P. Abreu, D. Ravignani, Roger W Clay, Marco Aglietta, Marko Zavrtanik, E. Santos, Jarryd A. Day, G. De Mauro, F. Riehn, Marina Scornavacche, Alexandra Saftoiu, Tiina Suomijarvi, F. Pedreira, Raul Sarmento, Felix Schlüter, Martin Vacula, J. Rautenberg, Q. Luce, Gualberto Avila, Martín Miguel Freire, Fabian Gobbi, Jiri Blazek, Lorenzo Caccianiga, Denis Stanca, I. Lhenry-Yvon, Miroslav Pech, M. Pothast, Markus Roth, D. Nitz, A.C. Cobos Cerutti, J. R. T. de Mello Neto, Paul Sommers, A. Blanco, Marcus Niechciol, B. Vargas Cárdenas, J. Pallotta, L. R. Wiencke, G. Marsella, F. Sánchez, Heino Falcke, Maximilian Stadelmaier, Jesús Peña-Rodríguez, Carla Bleve, Rodrigo Guedes Lang, B. Andrada, P. Horvath, Isabel Goos, D. Heck, John Farmer, Jonathan Biteau, A. Insolia, M. Kleifges, A.D. Supanitsky, J. Pȩkala, Antonio Condorelli, Christine Peters, Maria-Teresa Dova, M. R. Hampel, Valerio Verzi, J. Vicha, A. M. Botti, Niraj Dhital, P. Tobiska, Sofia Andringa, Julian Kemp, Luis Villaseñor, R. Conceição, A. Weindl, S. Querchfeld, Miroslav Hrabovský, T. Huege, M. del Río, Nicolás González, Jeffrey Brack, A.L. Garcia Vegas, M. Schimp, Marvin Gottowik, Maria Rita Coluccia, Maximilian Reininghaus, M.A. Leigui de Oliveira, Olaf Scholten, Gaia Silli, Humberto Ibarguen Salazar, D. Mockler, L. Bonneau Arbeletche, A. Di Matteo, Eric Mayotte, A. Haungs, A. Filipčič, G. Torralba Elipe, I. Valiño, Olena Tkachenko, M. I. Micheletti, B. C. Manning, P. Ruehl, Ralf Ulrich, M. Gómez Berisso, L. Valore, B. Wundheiler, L. Lopes, Roberto Mussa, J. Šupík, Carlo Ventura, F. Sarazin, Jaime Alvarez-Muñiz, Alexandru Gherghel-Lascu, David Schmidt, S. Schröder, Italo Epicoco, S. Petrera, Marc Weber, Charles Timmermans, Hernán Asorey, R.C. dos Anjos, R.C. Shellard, Adriana Vásquez-Ramírez, J. F. Valdés Galicia, M. Palatka, Mario Buscemi, Jörg R. Hörandel, P. Mantsch, J. Hulsman, Julien Manshanden, Dusan Mandat, Lukáš Vaclavek, H. J. Mathes, I. De Mitri, Stanislav Michal, G. Mancarella, François Montanet, G. Golup, B. Keilhauer, Sullivan Marafico, Vladimir Lenok, L. Perrone, Francesco Fenu, Ladislav Chytka, Gaetano Salina, Hernan Wahlberg, Miguel Mostafa, Violet M. Harvey, Andres Travaini, E. Varela, J.D. Sanabria Gomez, D. Harari, L. Nožka, J. Chudoba, S. J. Sciutto, J. Rodriguez Rojo, Fridtjof Feldbusch, Marcel Köpke, M. Platino, C. M. Schäfer, Maria Giller, R. Squartini, Alfred Müller, Marco Giammarchi, Juan Miguel Carceller, P. Savina, Eleonora Guido, W. Rodrigues de Carvalho, Flavia Gesualdi, Alex Kääpä, Enrique Zas, A. Parra, Alena Bakalova, J. Stasielak, Massimo Mastrodicasa, R. M. de Almeida, Teresa Bister, E. De Vito, R.J. Barreira Luz, Alina Mihaela Badescu, Dalibor Nosek, Fernando Contreras, Brian Fick, Samo Stanič, Giovanni Consolati, Cristina Galea, P. Ristori, M. Trini, K. Choi, Martina Bohacova, G. Medina-Tanco, A. Tapia, Octavian Sima, A. Cancio, H. Gemmeke, R. Halliday, Nataliia Borodai, M. Unger, M. L. Díaz Castro, G. Farrar, M.P. Panetta, Petr Schovanek, Juan Pablo Gongora, Christian Sarmiento-Cano, Francesca Zuccarello, Luis A. Anchordoqui, I. Allekotte, M. J. Roncoroni, Valerio Pirronello, H. Schieler, Q. Dorosti, Philipp Papenbreer, C. J. Todero Peixoto, Karl-Heinz Kampert, L. Calcagni, Kai Daumiller, Antonella Castellina, A. C. Fauth, F. Salamida, A. Yushkov, A. Fuster, A. Puyleart, L. Nellen, Zbigniew Szadkowski, Michael Prouza, Corinne Berat, Carla Bonifazi, Rodrigo Pelayo, Denise Boncioli, D. Melo, Stijn Buitink, M. Risse, V. Novotny, Trent D. Grubb, A. Taboada, Jose A. Bellido, C. Morello, Rossella Caruso, Fabio Convenga, A. Lucero, Fernando Catalani, Caterina Trimarelli, M. A. Muller, Juan Manuel Figueira, H. Wilczyński, Roberta Colalillo, P.F. Gómez Vitale, I.D. Vergara Quispe, A. G. Mariazzi, A. Aab, R. Sato, Peter L. Biermann, G. P. Guedes, Toshihiro Fujii, Paolo Privitera, Jakub Juryšek, G. Kukec Mezek, Alessio Gorgi, M. E. Bertaina, A. Menshikov, P. Travnicek, J. Debatin, Orazio Zapparrata, Carola Dobrigkeit, M. Muzio, Steffen Hahn, Juan Carlos D'Olivo, T. Pierog, Esteban Roulet, Justin M. Albury, Alan Watson, M. Perlin, Mihai Niculescu-Oglinzanu, J. Alvarez Castillo, Matias Tueros, Luis A. Nunez, Piera Luisa Ghia, Jeffrey A. Johnsen, B. L. Lago, Günter Sigl, P. Stassi, Radomir Smida, A. Machado Payeras, Paula Gina Isar, Fernando Gollan, E. M. Santos, R. Alves Batista, Bruce R. Dawson, P.O. Mazur, V. de Souza, K.-H. Becker, M. Pimenta, P.R. Araújo Ferreira, Tobias Winchen, Florian Lukas Briechle, Max Malacari, J. Perez Armand, Claudio Galelli, Jose Chinellato, Ioana Caracas, A. Letessier-Selvon, Lorenzo Cazon, A. van Vliet, David Wittkowski, Danielle LaHurd, Olivier Deligny, Tomáš Fodran, R. Lorek, M. Urban, W. M. Namasaka, A. C. Rovero, Ugo Giaccari, Alexandru Balaceanu, M. Suárez-Durán, Carla Aramo, Julien Souchard, D. Martello, M. Ziolkowski, O. Martínez Bravo, K. Mulrey, Silvia Mollerach, N. Fazzini, Ioana Codrina Maris, Jonas Glombitza, F. C. T. Barbato, D. Zavrtanik, Serguei Vorobiov, G. C. Hill, Jorge F. Soriano, Ralph Engel, Marcos Cerda, J. Ridky, Darko Veberič, J. Kleinfeller, Carlos Escobar, Kevin-Druis Merenda, M. Schimassek, C. Hojvat, Jan Ebr, Jacco Vink, H.O. Klages, A. A. Nucita, G. Parente, Fabrizia Canfora, L. Zehrer, J. de Oliveira, Alejandro Almela, Thomas Bretz, V. Rizi, Corbin Covault, Lino Miramonti, D. de Oliveira Franco, Xavier Bertou, Aab, A., Abreu, P., Aglietta, M., Albury, J. M., Allekotte, I., Almela, A., Castillo, J. Alvarez, Alvarez-Muñiz, J., Batista, R. Alve, Anastasi, G. A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Ferreira, P. R. Araújo, Asorey, H., Assis, P., Avila, G., Badescu, A. M., Bakalova, A., Balaceanu, A., Barbato, F., Luz, R. J. Barreira, Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermann, P. L., Bister, T., Biteau, J., Blanco, A., Blazek, J., Bleve, C., Boháčová, M., Boncioli, D., Bonifazi, C., Arbeletche, L. Bonneau, Borodai, N., Botti, A. M., Brack, J., Bretz, T., Briechle, F. L., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero-Mora, K. S., Caccianiga, L., Calcagni, L., Cancio, A., Canfora, F., Caracas, I., Carceller, J. M., Caruso, R., Castellina, A., Catalani, F., Cataldi, G., Cazon, L., Cerda, M., Chinellato, J. A., Choi, K., Chudoba, J., Chytka, L., Clay, R. W., Cerutti, A. C. Cobo, Colalillo, R., Coleman, A., Coluccia, M. R., Conceição, R., Condorelli, A., Consolati, G., Contreras, F., Convenga, F., Covault, C. E., Dasso, S., Daumiller, K., Dawson, B. R., Day, J. A., de Almeida, R. M., de Jesús, J., de Jong, S. J., Mauro, G. De, Neto, J. R. T. de Mello, Mitri, I. De, de Oliveira, J., Franco, D. de Oliveira, de Souza, V., Vito, E. De, Debatin, J., Río, M. del, Deligny, O., Dhital, N., Matteo, A. Di, Castro, M. L. Díaz, Dobrigkeit, C., D'Olivo, J. C., Dorosti, Q., Anjos, R. C. do, Dova, M. T., Ebr, J., Engel, R., Epicoco, I., Erdmann, M., Escobar, C. O., Etchegoyen, A., Falcke, H., Farmer, J., Farrar, G., Fauth, A. C., Fazzini, N., Feldbusch, F., Fenu, F., Fick, B., Figueira, J. M., Filipčič, A., Fodran, T., Freire, M. M., Fujii, T., Fuster, A., Galea, C., Galelli, C., García, B., Vegas, A. L. Garcia, Gemmeke, H., Gesualdi, F., Gherghel-Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glombitza, J., Gobbi, F., Gollan, F., Golup, G., Berisso, M. Gómez, Vitale, P. F. Gómez, Gongora, J. P., González, N., Goos, I., Góra, D., Gorgi, A., Gottowik, M., Grubb, T. D., Guarino, F., Guedes, G. P., Guido, E., Hahn, S., Halliday, R., Hampel, M. R., Hansen, P., Harari, D., Harvey, V. M., Haungs, A., Hebbeker, T., Heck, D., Hill, G. C., Hojvat, C., Hörandel, J. R., Horvath, P., Hrabovský, M., Huege, T., Hulsman, J., Insolia, A., Isar, P. G., Johnsen, J. A., Jurysek, J., Kääpä, A., Kampert, K. H., Keilhauer, B., Kemp, J., Klages, H. O., Kleifges, M., Kleinfeller, J., Köpke, M., Mezek, G. Kukec, Lago, B. L., Lahurd, D., Lang, R. G., de Oliveira, M. A. Leigui, Lenok, V., Letessier-Selvon, A., Lhenry-Yvon, I., Presti, D. Lo, Lopes, L., López, R., Lorek, R., Luce, Q., Lucero, A., Payeras, A. Machado, Malacari, M., Mancarella, G., Mandat, D., Manning, B. C., Manshanden, J., Mantsch, P., Marafico, S., Mariazzi, A. G., Mariş, I. C., Marsella, G., Martello, D., Martinez, H., Bravo, O. Martínez, Mastrodicasa, M., Mathes, H. J., Matthews, J., Matthiae, G., Mayotte, E., Mazur, P. O., Medina-Tanco, G., Melo, D., Menshikov, A., Merenda, K. -D., Michal, S., Micheletti, M. I., Miramonti, L., Mockler, D., Mollerach, S., Montanet, F., Morello, C., Mostafá, M., Müller, A. L., Muller, M. A., Mulrey, K., Mussa, R., Muzio, M., Namasaka, W. M., Nellen, L., Niculescu-Oglinzanu, M., Niechciol, M., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Nucita, A, Núñez, L. A., Palatka, M., Pallotta, J., Panetta, M. P., Papenbreer, P., Parente, G., Parra, A., Pech, M., Pedreira, F., Pȩkala, J., Pelayo, R., Peña-Rodriguez, J., Armand, J. Perez, Perlin, M., Perrone, L., Peters, C., Petrera, S., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Pont, B., Pothast, M., Privitera, P., Prouza, M., Puyleart, A., Querchfeld, S., Rautenberg, J., Ravignani, D., Reininghaus, M., Ridky, J., Riehn, F., Risse, M., Ristori, P., Rizi, V., de Carvalho, W. Rodrigue, Rojo, J. Rodriguez, Roncoroni, M. J., Roth, M., Roulet, E., Rovero, A. C., Ruehl, P., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Salina, G., Gomez, J. D. Sanabria, Sánchez, F., Santos, E. M., Santos, E., Sarazin, F., Sarmento, R., Sarmiento-Cano, C., Sato, R., Savina, P., Schäfer, C. M., Scherini, V., Schieler, H., Schimassek, M., Schimp, M., Schlüter, F., Schmidt, D., Scholten, O., Schovánek, P., Schröder, F. G., Schröder, S., Sciutto, S. J., Scornavacche, M., Shellard, R. C., Sigl, G., Silli, G., Sima, O., Šmída, R., Sommers, P., Soriano, J. F., Souchard, J., Squartini, R., Stadelmaier, M., Stanca, D., Stanič, S., Stasielak, J., Stassi, P., Streich, A., Suárez-Durán, M., Sudholz, T., Suomijärvi, T., Supanitsky, A. D., Šupík, J., Szadkowski, Z., Taboada, A., Tapia, A., Timmermans, C., Tkachenko, O., Tobiska, P., Peixoto, C. J. Todero, Tomé, B., Elipe, G. Torralba, Travaini, A., Travnicek, P., Trimarelli, C., Trini, M., Tueros, M., Ulrich, R., Unger, M., Urban, M., Vaclavek, L., Vacula, M., Galicia, J. F. Valdé, Valiño, I., Valore, L., Vliet, A. van, Varela, E., Cárdenas, B. Varga, Vásquez-Ramírez, A., Veberič, D., Ventura, C., Quispe, I. D. Vergara, Verzi, V., Vicha, J., Villaseñor, L., Vink, J., Vorobiov, S., Wahlberg, H., Watson, A. A., Weber, M., Weindl, A., Wiencke, L., Wilczyński, H., Winchen, T., Wirtz, M., Wittkowski, D., Wundheiler, B., Yushkov, A., Zapparrata, O., Zas, E., Zavrtanik, D., Zavrtanik, M., Zehrer, L., Zepeda, A., Ziolkowski, M., Zuccarello, F., Castillo, J. A., Alvarez-Muniz, J., Batista, R. A., Ferreira, P. R. A., Luz, R. J. B., Bohacova, M., Arbeletche, L. B., Cerutti, A. C. C., Conceicao, R., De Almeida, R. M., De Jesus, J., De Jong, S. J., Mauro, G. D., Neto, J. R. T. D. M., De Mitri, I., De Oliveira, J., De Oliveira Franco, D., De Souza, V., De Vito, E., Del Rio, M., Di Matteo, A., Castro, M. L. D., Dos Anjos, R. C., Filipcic, A., Garcia, B., Vegas, A. L. G., Berisso, M. G., Vitale, P. F. G., Gonzalez, N., Gora, D., Horandel, J. R., Hrabovsky, M., Kaapa, A., Kopke, M., Mezek, G. K., De Oliveira, M. A. L., Presti, D. L., Lopez, R., Payeras, A. M., Maris, I. C., Bravo, O. M., Mostafa, M., Muller, A. L., Nozka, L., Nucita, A., Nunez, L. A., Pkala, J., Pena-Rodriguez, J., Armand, J. P., De Carvalho, W. R., Rojo, J. R., Gomez, J. D. S., Sanchez, F., Schafer, C. M., Schluter, F., Schovanek, P., Schroder, F. G., Schroder, S., Smida, R., Stanic, S., Suarez-Duran, M., Suomijarvi, T., Supik, J., Peixoto, C. J. T., Tome, B., Elipe, G. T., Galicia, J. F. V., Valino, I., Vliet, A. V., Cardenas, B. V., Vasquez-Ramirez, A., Veberic, D., Quispe, I. D. V., Villasenor, L., Wilczynski, H., High Energy Astrophys. & Astropart. Phys (API, FNWI), Research unit Astroparticle Physics, Physics, Elementary Particle Physics, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Pierre Auger, Aab A., Abreu P., Aglietta M., Albury J.M., Allekotte I., Almela A., Castillo J.A., Alvarez-Muniz J., Batista R.A., Anastasi G.A., Anchordoqui L., Andrada B., Andringa S., Aramo C., Ferreira P.R.A., Asorey H., Assis P., Avila G., Badescu A.M., Bakalova A., Balaceanu A., Barbato F., Luz R.J.B., Becker K.H., Bellido J.A., Berat C., Bertaina M.E., Bertou X., Biermann P.L., Bister T., Biteau J., Blanco A., Blazek J., Bleve C., Bohacova M., Boncioli D., Bonifazi C., Arbeletche L.B., Borodai N., Botti A.M., Brack J., Bretz T., Briechle F.L., Buchholz P., Bueno A., Buitink S., Buscemi M., Caballero-Mora K.S., Caccianiga L., Calcagni L., Cancio A., Canfora F., Caracas I., Carceller J.M., Caruso R., Castellina A., Catalani F., Cataldi G., Cazon L., Cerda M., Chinellato J.A., Choi K., Chudoba J., Chytka L., Clay R.W., Cerutti A.C.C., Colalillo R., Coleman A., Coluccia M.R., Conceicao R., Condorelli A., Consolati G., Contreras F., Convenga F., Covault C.E., Dasso S., Daumiller K., Dawson B.R., Day J.A., De Almeida R.M., De Jesus J., De Jong S.J., Mauro G.D., Neto J.R.T.D.M., De Mitri I., De Oliveira J., De Oliveira Franco D., De Souza V., De Vito E., Debatin J., Del Rio M., Deligny O., Dhital N., Di Matteo A., Castro M.L.D., Dobrigkeit C., D'Olivo J.C., Dorosti Q., Dos Anjos R.C., Dova M.T., Ebr J., Engel R., Epicoco I., Erdmann M., Escobar C.O., Etchegoyen A., Falcke H., Farmer J., Farrar G., Fauth A.C., Fazzini N., Feldbusch F., Fenu F., Fick B., Figueira J.M., Filipcic A., Fodran T., Freire M.M., Fujii T., Fuster A., Galea C., Galelli C., Garcia B., Vegas A.L.G., Gemmeke H., Gesualdi F., Gherghel-Lascu A., Ghia P.L., Giaccari U., Giammarchi M., Giller M., Glombitza J., Gobbi F., Gollan F., Golup G., Berisso M.G., Vitale P.F.G., Gongora J.P., Gonzalez N., Goos I., Gora D., Gorgi A., Gottowik M., Grubb T.D., Guarino F., Guedes G.P., Guido E., Hahn S., Halliday R., Hampel M.R., Hansen P., Harari D., Harvey V.M., Haungs A., Hebbeker T., Heck D., Hill G.C., Hojvat C., Horandel J.R., Horvath P., Hrabovsky M., Huege T., Hulsman J., Insolia A., Isar P.G., Johnsen J.A., Jurysek J., Kaapa A., Kampert K.H., Keilhauer B., Kemp J., Klages H.O., Kleifges M., Kleinfeller J., Kopke M., Mezek G.K., Lago B.L., Lahurd D., Lang R.G., De Oliveira M.A.L., Lenok V., Letessier-Selvon A., Lhenry-Yvon I., Presti D.L., Lopes L., Lopez R., Lorek R., Luce Q., Lucero A., Payeras A.M., Malacari M., Mancarella G., Mandat D., Manning B.C., Manshanden J., Mantsch P., Marafico S., Mariazzi A.G., Maris I.C., Marsella G., Martello D., Martinez H., Bravo O.M., Mastrodicasa M., Mathes H.J., Matthews J., Matthiae G., Mayotte E., Mazur P.O., Medina-Tanco G., Melo D., Menshikov A., Merenda K.-D., Michal S., Micheletti M.I., Miramonti L., Mockler D., Mollerach S., Montanet F., Morello C., Mostafa M., Muller A.L., Muller M.A., Mulrey K., Mussa R., Muzio M., Namasaka W.M., Nellen L., Niculescu-Oglinzanu M., Niechciol M., Nitz D., Nosek D., Novotny V., Nozka L., Nucita A., Nunez L.A., Palatka M., Pallotta J., Panetta M.P., Papenbreer P., Parente G., Parra A., Pech M., Pedreira F., Pkala J., Pelayo R., Pena-Rodriguez J., Armand J.P., Perlin M., Perrone L., Peters C., Petrera S., Pierog T., Pimenta M., Pirronello V., Platino M., Pont B., Pothast M., Privitera P., Prouza M., Puyleart A., Querchfeld S., Rautenberg J., Ravignani D., Reininghaus M., Ridky J., Riehn F., Risse M., Ristori P., Rizi V., De Carvalho W.R., Rojo J.R., Roncoroni M.J., Roth M., Roulet E., Rovero A.C., Ruehl P., Saffi S.J., Saftoiu A., Salamida F., Salazar H., Salina G., Gomez J.D.S., Sanchez F., Santos E.M., Santos E., Sarazin F., Sarmento R., Sarmiento-Cano C., Sato R., Savina P., Schafer C.M., Scherini V., Schieler H., Schimassek M., Schimp M., Schluter F., Schmidt D., Scholten O., Schovanek P., Schroder F.G., Schroder S., Sciutto S.J., Scornavacche M., Shellard R.C., Sigl G., Silli G., Sima O., Smida R., Sommers P., Soriano J.F., Souchard J., Squartini R., Stadelmaier M., Stanca D., Stanic S., Stasielak J., Stassi P., Streich A., Suarez-Duran M., Sudholz T., Suomijarvi T., Supanitsky A.D., Supik J., Szadkowski Z., Taboada A., Tapia A., Timmermans C., Tkachenko O., Tobiska P., Peixoto C.J.T., Tome B., Elipe G.T., Travaini A., Travnicek P., Trimarelli C., Trini M., Tueros M., Ulrich R., Unger M., Urban M., Vaclavek L., Vacula M., Galicia J.F.V., Valino I., Valore L., Vliet A.V., Varela E., Cardenas B.V., Vasquez-Ramirez A., Veberic D., Ventura C., Quispe I.D.V., Verzi V., Vicha J., Villasenor L., Vink J., Vorobiov S., Wahlberg H., Watson A.A., Weber M., Weindl A., Wiencke L., Wilczynski H., Winchen T., Wirtz M., Wittkowski D., Wundheiler B., Yushkov A., Zapparrata O., Zas E., Zavrtanik D., Zavrtanik M., Zehrer L., Zepeda A., Ziolkowski M., and Zuccarello F.

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astronomy, 01 natural sciences, 030218 nuclear medicine & medical imaging, law.invention, 0302 clinical medicine, law, Observatory, atmosphere [muon], Instrumentation, physics.ins-det, Mathematical Physics, Large detector-systems performance, Physics, Instrumentation et méthodes en physique, Performance of high energy physics detectors, Data reduction methods, Large detector systems for particle and astroparticle physics, Detector, Settore FIS/01 - Fisica Sperimentale, Astrophysics::Instrumentation and Methods for Astrophysics, resistive plate chamber, Instrumentation and Detectors (physics.ins-det), trajectory [muon], Auger, observatory, muon: atmosphere, Astrophysics - Instrumentation and Methods for Astrophysics, atmosphere [showers], Cherenkov detector, air, Cherenkov counter: water, Astrophysics::High Energy Astrophysical Phenomena, UHE [cosmic radiation], FOS: Physical sciences, Cosmic ray, muon: trajectory, Nuclear physics, 03 medical and health sciences, Hodoscope, Data reduction method, 0103 physical sciences, Calibration, High Energy Physics, ddc:610, cosmic radiation: UHE, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), Zenith, Ciencias Exactas, Pierre Auger Observatory, showers: atmosphere, 010308 nuclear & particles physics, water [Cherenkov counter], hodoscope, Física, Autres mathématiques, stability, calibration, Data reduction methods, Large detector systems for particle and astroparticle physics, Large detector-systems performance, Performance of High Energy Physics Detectors, Experimental High Energy Physics, Large detector systems for particle and astroparticle physic, High Energy Physics::Experiment, RAIOS CÓSMICOS, astro-ph.IM
Abstract

Extensive air showers, originating from ultra-high energy cosmic rays, have been successfully measured through the use of arrays of water-Cherenkov detectors (WCDs). Sophisticated analyses exploiting WCD data have made it possible to demonstrate that shower simulations, based on different hadronic-interaction models, cannot reproduce the observed number of muons at the ground. The accurate knowledge of the WCD response to muons is paramount in establishing the exact level of this discrepancy. In this work, we report on a study of the response of a WCD of the Pierre Auger Observatory to atmospheric muons performed with a hodoscope made of resistive plate chambers (RPCs), enabling us to select and reconstruct nearly 600 thousand single muon trajectories with zenith angles ranging from 0º to 55º. Comparison of distributions of key observables between the hodoscope data and the predictions of dedicated simulations allows us to demonstrate the accuracy of the latter at a level of 2%. As the WCD calibration is based on its response to atmospheric muons, the hodoscope data are also exploited to show the long-term stability of the procedure., La lista completa de autores que integran el documento puede consultarse en el archivo., Facultad de Ciencias Exactas, Instituto de Física La Plata

Published
2020
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24. Multi-Messenger Physics With the Pierre Auger Observatory

Author

A. Aab, P. Abreu, M. Aglietta, I. F. M. Albuquerque, J. M. Albury, I. Allekotte, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, G. A. Anastasi, L. Anchordoqui, B. Andrada, S. Andringa, C. Aramo, H. Asorey, P. Assis, G. Avila, A. M. Badescu, A. Bakalova, A. Balaceanu, F. Barbato, R. J. Barreira Luz, S. Baur, K. H. Becker, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, P. L. Biermannb, J. Biteau, S. G. Blaess, A. Blanco, J. Blazek, C. Bleve, M. Boháˇcová, D. Boncioli, C. Bonifazi, N. Borodai, A. M. Botti, J. Bracke, T. Bretz, A. Bridgeman, F. L. Briechle, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, K. S. Caballero-Mora, L. Caccianiga, L. Calcagni, A. Cancio, F. Canfora, J. M. Carceller, R. Caruso, A. Castellina, F. Catalani, G. Cataldi, L. Cazon, M. Cerda, J. A. Chinellato, J. Chudoba, L. Chytka, R. W. Clay, A. C. Cobos Cerutti, R. Colalillo, A. Coleman, M. R. Coluccia, R. Conceição, A. Condorelli, G. Consolati, F. Contreras, F. Convenga, M. J. Cooper, S. Coutu, C. E. Covault, B. Daniel, S. Dasso, K. Daumiller, B. R. Dawson, J. A. Day, R. M. de Almeida, S. J. de Jong, G. De Mauro, J. R. T. de Mello Neto, I. De Mitri, J. de Oliveira, F. O. de Oliveira Salles, V. de Souza, J. Debatin, M. del Río, O. Deligny, N. Dhital, M. L. Díaz Castro, F. Diogo, C. Dobrigkeit, J. C. D’Olivo, Q. Dorosti, R. C. dos Anjos, M. T. Dova, A. Dundovic, J. Ebr, R. Engel, M. Erdmann, C. O. Escobarc, A. Etchegoyen, H. Falcke, J. Farmer, G. Farrar, A. C. Fauth, N. Fazzinic, F. Feldbusch, F. Fenu, L. P. Ferreyro, J. M. Figueira, A. Filipˇciˇc, M. M. Freire, T. Fujii, f, A. Fuster, B. García, H. Gemmeke, A. Gherghel-Lascu, P. L. Ghia, U. Giaccari, M. Giammarchi, M. Giller, D. Głas, J. Glombitza, F. Gobbi, G. Golup, M. Gómez Berisso, P. F. Gómez Vitale, J. P. Gongora, N. González, I. Goos, D. Góra, A. Gorgi, M. Gottowik, T. D. Grubb, F. Guarino, G. P. Guedes, E. Guido, R. Halliday, M. R. Hampel, P. Hansen, D. Harari, T. A. Harrison, V. M. Harvey, A. Haungs, T. Hebbeker, D. Heck, P. Heimann, G. C. Hill, C. Hojvatc, E. M. Holt, P. Homola, J. R. Hörandel, P. Horvath, M. Hrabovský, T. Huege, J. Hulsman, A. Insolia, P. G. Isar, I. Jandt, J. A. Johnsen, M. Josebachuili, J. Jurysek, A. Kääpä, K. H. Kampert, B. Keilhauer, N. Kemmerich, J. Kemp, H. O. Klages, M. Kleifges, J. Kleinfeller, R. Krause, D. Kuempel, G. Kukec Mezek, A. Kuotb Awad, B. L. Lago, D. LaHurd, R. G. Lang, R. Legumina, M. A. Leigui de Oliveira, V. Lenok, A. Letessier-Selvon, I. Lhenry-Yvon, O. C. Lippmann, D. Lo Presti, L. Lopes, R. López, A. López Casado, R. Lorek, Q. Luce, A. Lucero, M. Malacari, G. Mancarella, D. Mandat, B. C. Manning, P. Mantschc, A. G. Mariazzi, I. C. Mari¸s, G. Marsella, D. Martello, H. Martinez, O. Martínez Bravo, M. Mastrodicasa, H. J. Mathes, S. Mathys, J. Matthews, G. Matthiae, E. Mayotte, P. O. Mazurc, G. Medina-Tanco, D. Melo, A. Menshikov, K. -D. Merenda, S. Michal, M. I. Micheletti, L. Middendorf, L. Miramonti, B. Mitrica, D. Mockler, S. Mollerach, F. Montanet, C. Morello, G. Morlino, M. Mostafá, A. L. Müller, M. A. Muller, d, S. Müller, R. Mussa, L. Nellen, P. H. Nguyen, M. Niculescu-Oglinzanu, M. Niechciol, D. Nitz, g, D. Nosek, V. Novotny, L. Nožka, A Nucita, L. A. Núñez, F. Oikonomou, i, A. Olinto, M. Palatka, J. Pallotta, M. P. Panetta, P. Papenbreer, G. Parente, A. Parra, M. Pech, F. Pedreira, J. Pe¸kala, R. Pelayo, J. Peña-Rodriguez, L. A. S. Pereira, M. Perlin, L. Perrone, C. Peters, S. Petrera, J. Phuntsok, T. Pierog, M. Pimenta, V. Pirronello, M. Platino, J. Poh, B. Pont, C. Porowski, R. R. Prado, P. Privitera, M. Prouza, A. Puyleart, S. Querchfeld, S. Quinn, R. Ramos-Pollan, J. Rautenberg, D. Ravignani, M. Reininghaus, J. Ridky, F. Riehn, M. Risse, P. Ristori, V. Rizi, W. Rodrigues de Carvalho, J. Rodriguez Rojo, M. J. Roncoroni, M. Roth, E. Roulet, A. C. Rovero, P. Ruehl, S. J. Saffi, A. Saftoiu, F. Salamida, H. Salazar, G. Salina, J. D. Sanabria Gomez, F. Sánchez, E. M. Santos, E. Santos, F. Sarazin, R. Sarmento, C. Sarmiento-Cano, R. Sato, P. Savina, M. Schauer, V. Scherini, H. Schieler, M. Schimassek, M. Schimp, F. Schlüter, D. Schmidt, O. Scholten, P. Schovánek, F. G. Schröder, S. Schröder, J. Schumacher, S. J. Sciutto, M. Scornavacche, R. C. Shellard, G. Sigl, G. Silli, O. Sima, h, R. Šmída, G. R. Snow, P. Sommers, J. F. Soriano, J. Souchard, R. Squartini, D. Stanca, S. Staniˇc, J. Stasielak, P. Stassi, M. Stolpovskiy, A. Streich, F. Suarez, M. Suárez-Durán, T. Sudholz, T. Suomijärvi, A. D. Supanitsky, J. Šupík, Z. Szadkowski, A. Taboada, O. A. Taborda, A. Tapia, C. Timmermans, C. J. Todero Peixoto, B. Tomé, G. Torralba Elipe, A. Travaini, P. Travnicek, M. Trini, M. Tueros, R. Ulrich, M. Unger, M. Urban, J. F. Valdés Galicia, I. Valiño, L. Valore, P. van Bodegom, A. M. van den Berg, A. van Vliet, E. Varela, B. Vargas Cárdenas, D. Veberiˇc, C. Ventura, I. D. Vergara Quispe, V. Verzi, J. Vicha, L. Villaseñor, J. Vink, S. Vorobiov, H. Wahlberg, A. A. Watsona, M. Weber, A. Weindl, M. Wiede´nski, L. Wiencke, H. Wilczy´nski, T. Winchen, M. Wirtz, D. Wittkowski, B. Wundheiler, L. Yang, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, L. Zehrer, A. Zepeda, B. Zimmermann, M. Ziolkowski, Z. Zong, F. Zuccarello, Aab, A., Abreu, P., Aglietta, M., Albuquerque, I. F. M., Albury, J. M., Allekotte, I., Almela, A., Alvarez Castillo, J., Alvarez-Muñiz, J., Anastasi, G. A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Asorey, H., Assis, P., Avila, G., Badescu, A. M., Bakalova, A., Balaceanu, A., Barbato, F., Barreira Luz, R. J., Baur, S., Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermannb, P. L., Biteau, J., Blaess, S. G., Blanco, A., Blazek, J., Bleve, C., Boháˇcová, M., Boncioli, D., Bonifazi, C., Borodai, N., Botti, A. M., Bracke, J., Bretz, T., Bridgeman, A., Briechle, F. L., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero-Mora, K. S., Caccianiga, L., Calcagni, L., Cancio, A., Canfora, F., Carceller, J. M., Caruso, R., Castellina, A., Catalani, F., Cataldi, G., Cazon, L., Cerda, M., Chinellato, J. A., Chudoba, J., Chytka, L., Clay, R. W., Cobos Cerutti, A. C., Colalillo, R., Coleman, A., Coluccia, M. R., Conceição, R., Condorelli, A., Consolati, G., Contreras, F., Convenga, F., Cooper, M. J., Coutu, S., Covault, C. E., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., Day, J. A., de Almeida, R. M., de Jong, S. J., De Mauro, G., de Mello Neto, J. R. T., De Mitri, I., de Oliveira, J., de Oliveira Salles, F. O., de Souza, V., Debatin, J., del Río, M., Deligny, O., Dhital, N., Díaz Castro, M. L., Diogo, F., Dobrigkeit, C., D’Olivo, J. C., Dorosti, Q., dos Anjos, R. C., Dova, M. T., Dundovic, A., Ebr, J., Engel, R., Erdmann, M., Escobarc, C. O., Etchegoyen, A., Falcke, H., Farmer, J., Farrar, G., Fauth, A. C., Fazzinic, N., Feldbusch, F., Fenu, F., Ferreyro, L. P., Figueira, J. M., Filipˇciˇc, A., Freire, M. M., Fujii, T., F, Fuster, A., García, B., Gemmeke, H., Gherghel-Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Głas, D., Glombitza, J., Gobbi, F., Golup, G., Gómez Berisso, M., Gómez Vitale, P. F., Gongora, J. P., González, N., Goos, I., Góra, D., Gorgi, A., Gottowik, M., Grubb, T. D., Guarino, F., Guedes, G. P., Guido, E., Halliday, R., Hampel, M. R., Hansen, P., Harari, D., Harrison, T. A., Harvey, V. M., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Hill, G. C., Hojvatc, C., Holt, E. M., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huege, T., Hulsman, J., Insolia, A., Isar, P. G., Jandt, I., Johnsen, J. A., Josebachuili, M., Jurysek, J., Kääpä, A., Kampert, K. H., Keilhauer, B., Kemmerich, N., Kemp, J., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Kuempel, D., Kukec Mezek, G., Kuotb Awad, A., Lago, B. L., Lahurd, D., Lang, R. G., Legumina, R., Leigui de Oliveira, M. A., Lenok, V., Letessier-Selvon, A., Lhenry-Yvon, I., Lippmann, O. C., Lo Presti, D., Lopes, L., López, R., López Casado, A., Lorek, R., Luce, Q., Lucero, A., Malacari, M., Mancarella, G., Mandat, D., Manning, B. C., Mantschc, P., Mariazzi, A. G., Mari¸s, I. C., Marsella, G., Martello, D., Martinez, H., Martínez Bravo, O., Mastrodicasa, M., Mathes, H. J., Mathys, S., Matthews, J., Matthiae, G., Mayotte, E., Mazurc, P. O., Medina-Tanco, G., Melo, D., Menshikov, A., Merenda, K. -D., Michal, S., Micheletti, M. I., Middendorf, L., Miramonti, L., Mitrica, B., Mockler, D., Mollerach, S., Montanet, F., Morello, C., Morlino, G., Mostafá, M., Müller, A. L., Muller, M. A., D, Müller, S., Mussa, R., Nellen, L., Nguyen, P. H., Niculescu-Oglinzanu, M., Niechciol, M., Nitz, D., G, Nosek, D., Novotny, V., Nožka, L., Nucita, A, Núñez, L. A., Oikonomou, F., I, Olinto, A., Palatka, M., Pallotta, J., Panetta, M. P., Papenbreer, P., Parente, G., Parra, A., Pech, M., Pedreira, F., Pe¸kala, J., Pelayo, R., Peña-Rodriguez, J., Pereira, L. A. 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Subjects
HIGH-ENERGY NEUTRINOS, high energy neutrino, Astronomy, compact binary mergers, high energy neutrinos, high energy neutrons, high energy photons, multi-messenger astrophysics, UHECR, astro-ph.HE, PHOTONS, 01 natural sciences, 7. Clean energy, energy [n], lcsh:QB1-991, energy [cosmic radiation], HESS, LIGO, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, AIR-SHOWERS, energy: high, ORIGIN, Astrophysics::Instrumentation and Methods for Astrophysics, high energy photon, DETETORES, COSMIC-RAYS, photon: energy, multi-messenger astrophysic, neutrino: UHE, BURST, UHE [neutrino], Auger, observatory, compact [binary], high [energy], ddc:620, Astrophysics - High Energy Astrophysical Phenomena, performance, radiation: electromagnetic, FLUORESCENCE DETECTOR, lcsh:Astronomy, Astrophysics::High Energy Astrophysical Phenomena, UHE [cosmic radiation], cosmic radiation: energy, FOS: Physical sciences, ACCELERATION, n: energy, high energy neutron, 0103 physical sciences, High Energy Physics, cosmic radiation: UHE, Pierre Auger Observatory, 010308 nuclear & particles physics, lcsh:QC801-809, energy [photon], Astronomy and Astrophysics, Généralités, binary: compact, flux, messenger, electromagnetic [radiation], lcsh:Geophysics. Cosmic physics, VIRGO, correlation, Experimental High Energy Physics, galaxy, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

An overview of the multi-messenger capabilities of the Pierre Auger Observatory is presented. The techniques and performance of searching for Ultra-High Energy neutrinos, photons and neutrons are described. Some of the most relevant results are reviewed, such as stringent upper bounds that were placed to a flux of diffuse cosmogenic neutrinos and photons, bounds placed on neutrinos emitted from compact binary mergers that were detected by LIGO and Virgo during their first and second observing runs, as well as searches for high energy photons and neutrons from the Galactic center that constrain the properties of the putative Galactic PeVatron, observed by the H.E.S.S. collaboration. The observation of directional correlations between ultra-high energy cosmic rays and either high energy astrophysical neutrinos or specific source populations, weighted by their electromagnetic radiation, are also discussed. They constitute additional multi-messenger approaches aimed at identifying the sources of high energy cosmic rays., SCOPUS: re.j, info:eu-repo/semantics/published

Published
2019
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25. The nature and origin of ultra high-energy cosmic rays

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J. R. Hörandel, P. Abreu, M. Aglietta, M. Ahlers, E. J. Ahn, I. F. M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez Muñiz, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, C. Aramo, E. Arganda, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, M. Avenier, G. Avila, T. Bäcker, A. M. Badescu, M. Balzer, K. B. Barber, A. F. Barbosa, R. Bardenet, S. L. C. Barroso, B. Baughman f, J. Bäuml, J. J. Beatty, B. R. Becker, K. H. Becker, A. Bellétoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancus, P. Brogueira, W. C. Brown, R. Bruijn i, P. Buchholz, A. Bueno, R. E. Burton, K. S. Caballero Mora, B. Caccianiga, L. Caramete, R. Caruso, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, S. H. Cheng, A. Chiavassa, J. A. Chinellato, J. 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A., Minaya, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, M., Mostafá, C. A., Moura, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra ‡, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, M., Niechciol, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nožka, J., Oehlschläger, A., Olinto, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pękala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, C., Pfendner, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, V. H., Ponce, M., Pontz, A., Porcelli, P., Privitera, M., Prouza, E. 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Subjects
Physics, business.industry, Astronomy, Astrophysical source, General Physics and Astronomy, Pierre Auger Observatory, Cosmic Ray, Particle detector, Cosmology, Radiation flux, Optics, Measuring instrument, Ultra-high-energy cosmic ray, business
Abstract

The Earth is exposed to a permanent rain of cosmic particles from outer space [1]. Most of the particles are fully ionised atomic nuclei, moving with relativistic energies. The bulk of them with energies up to 1017 eV originate within our Milky Way. They are most likely accel- erated in supernova remnants. Some particles have a thousand times higher energies, i.e., around 1020 eV. This corresponds to the kinetic energy of a tennis ball with a mass of 50 g and a velocity of 90 km/h

Published
2012

26. A search for point sources of EeV neutrons

Author

P. Abreu, M. Aglietta, M. Ahlers, E.J. Ahn, I.F.M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, R. Alves Batista, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, C. Aramo, E. Arganda, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, M. Avenier, G. Avila, A.M. Badescu, M. Balzer, K.B. Barber, A.F. Barbosa, R. Bardenet, S.L.C. Barroso, B. Baughman f, J. Bäuml, C. Baus, J.J. Beatty, K.H. Becker, A. Bellétoile, J.A. Bellido, S. BenZvi, C. Berat, X. Bertou, P.L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancus, P. Brogueira, W.C. Brown, R. Bruijn i, P. Buchholz, A. Bueno, L. Buroker, R.E. Burton, K.S. Caballero-Mora, B. Caccianiga, L. Caramete, R. Caruso, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, S.H. Cheng, A. Chiavassa, J.A. Chinellato, J. Chirinos Diaz, J. Chudoba, M. Cilmo, R.W. Clay, G. Cocciolo, L. Collica, M.R. Coluccia, R. Conceição, F. Contreras, H. Cook, M.J. Cooper, J. Coppens, A. Cordier, S. Coutu, C.E. Covault, A. Creusot, A. Criss, J. Cronin, A. Curutiu, S. Dagoret-Campagne, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B.R. Dawson, R.M. de Almeida, M. De Domenico, C. De Donato, S.J. de Jong, G. De La Vega, W.J.M. de Mello Junior, J.R.T. de Mello Neto, I. De Mitri, V. de Souza, K.D. de Vries, L. del Peral, M. del Río, O. Deligny, H. Dembinski, N. Dhital, C. Di Giulio, M.L. Díaz Castro, P.N. Diep, F. Diogo, C. Dobrigkeit, W. Docters, J.C. D'Olivo, P.N. Dong, A. Dorofeev, J.C. dos Anjos, M.T. Dova, D. D'Urso, I. Dutan, J. Ebr, R. Engel, M. Erdmann, C.O. Escobar, J. Espadanal, A. Etchegoyen, P. Facal San Luis, H. Falcke, K. Fang, G. Farrar, A.C. Fauth, N. Fazzini, A.P. Ferguson, B. Fick, J.M. Figueira, A. Filevich, A. Filipčič, S. Fliescher, C.E. Fracchiolla, E.D. Fraenkel!, O. Fratu, U. Fröhlich, B. Fuchs, R. Gaior, R.F. Gamarra, S. Gambetta, B. García, S.T. Garcia Roca, D. Garcia-Gamez, D. Garcia-Pinto, G. Garilli, A. Gascon Bravo, H. Gemmeke, P.L. Ghia, M. Giller, J. Gitto, H. Glass, M.S. Gold, G. Golup, F. Gomez Albarracin, M. Gómez Berisso, P.F. Gómez Vitale, P. Gonçalves, J.G. Gonzalez, B. Gookin, A. Gorgi, P. Gouffon, E. Grashorn, S. Grebe, N. Griffith, A.F. Grillo, Y. Guardincerri, F. Guarino, G.P. Guedes, P. Hansen, D. Harari, T.A. Harrison, J.L. Harton, A. Haungs, T. Hebbeker, D. Heck, A.E. Herve, C. Hojvat, N. Hollon, V.C. Holmes, P. Homola, J.R. Hörandel, P. Horvath, M. Hrabovský, D. Huber, T. Huege, A. Insolia, F. Ionita, A. Italiano, S. Jansen, C. Jarne, S. Jiraskova, M. Josebachuili, K. Kadija, K.H. Kampert, P. Karhan, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, J.L. Kelley, E. Kemp, R.M. Kieckhafer, H.O. Klages, M. Kleifges, J. Kleinfeller, J. Knapp, D.-H. Koang, K. Kotera, N. Krohm, O. Krömer, D. Kruppke-Hansen, D. Kuempel, J.K. Kulbartz, N. Kunka, G. La Rosa, C. Lachaud, D. LaHurd, L. Latronico, R. Lauer, P. Lautridou, S. Le Coz, M.S.A.B. Leão, D. Lebrun, P. Lebrun, M.A. Leigui de Oliveira, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. Lopez Agüera, K. Louedec, J. Lozano Bahilo, L. Lu, A. Lucero, M. Ludwig, H. Lyberis, M.C. Maccarone, C. Macolino, S. Maldera, J. Maller, D. Mandat, P. Mantsch, A.G. Mariazzi, J. Marin, V. Marin, I.C. Maris, H.R. Marquez Falcon, G. Marsella, D. Martello, L. Martin, H. Martinez, O. Martínez Bravo, D. Martraire, J.J. Masías Meza, H.J. Mathes, J. Matthews, J.A.J. Matthews, G. Matthiae, D. Maurel, D. Maurizio, P.O. Mazur, G. Medina-Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, P. Mertsch, C. Meurer, R. Meyhandan, S. Mićanović, M.I. Micheletti, I.A. Minaya, L. Miramonti, L. Molina-Bueno, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, E. Moreno, J.C. Moreno, M. Mostafá, C.A. Moura, M.A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra ‡, J.L. Navarro, S. Navas, P. Necesal, L. Nellen, A. Nelles, J. Neuser, P.T. Nhung, M. Niechciol, L. Niemietz, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nožka, J. Oehlschläger, A. Olinto, M. Ortiz, N. Pacheco, D. Pakk Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, G. Parente, E. Parizot, A. Parra, S. Pastor, T. Paul, M. Pech, J. Pękala, R. Pelayo, I.M. Pepe, L. Perrone, R. Pesce, E. Petermann, S. Petrera, A. Petrolini, Y. Petrov, C. Pfendner, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, V.H. Ponce, M. Pontz, A. Porcelli, P. Privitera, M. Prouza, E.J. Quel, S. Querchfeld, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. Riggi, M. Risse, P. Ristori, H. Rivera, V. Rizi, J. Roberts, W. Rodrigues de Carvalho, G. Rodriguez, I. Rodriguez Cabo, J. Rodriguez Martino, J. Rodriguez Rojo, M.D. Rodríguez-Frías, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouillé-d'Orfeuil, E. Roulet, A.C. Rovero, C. Rühle, A. Saftoiu, F. Salamida, H. Salazar, F. Salesa Greus, G. Salina, F. SÃ! ¡nchez, C.E. Santo, E. Santos, E.M. Santos, F. Sarazin, B. Sarkar, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovánek, F. Schröder, S. Schulte, D. Schuster, S.J. Sciutto, M. Scuderi, A. Segreto, M. Settimo, A. Shadkam, R.C. Shellard, I. Sidelnik, G. Sigl, H.H. Silva Lopez, O. Sima, A. Śmiałkowski, R. Šmída, G.R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, Y.N. Srivastava, S. Stanic, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, T. Suomijärvi, A.D. Supanitsky, T. Šuša, M.S. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, A. Tapia, M. Tartare, O. Taşcău, R. Tcaciuc, N.T. Thao, D. Thomas, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C.J. Todero Peixoto, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, P. Travnicek, D.B. Tridapalli, G. Tristram, E. Trovato, M. Tueros, R. Ulrich, M. Unger, M. Urban, J.F. Valdés Galicia, I. Valiño, L. Valore, G. van Aar, A.M. van den Berg, A. van Vliet, E. Varela, B. Vargas Cárdenas, J.R. Vázquez, R.A. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Walz, A.A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, S. Westerhoff, B.J. Whelan, A. Widom, G. Wieczorek, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. Williams, T. Winchen, M. Wommer, B. Wundheiler, T. Yamamoto a, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano Garcia, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw h, A. Zepeda b, J. Zhou, Y. Zhu, M. Zimbres Silva, M. Ziolkowski, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, P. Abreu, M. Aglietta, M. Ahler, E.J. Ahn, I.F.M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, R. Alves Batista, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, C. Aramo, E. Arganda, F. Arquero, H. Asorey, P. Assi, J. Aublin, M. Ave, M. Avenier, G. Avila, A.M. Badescu, M. Balzer, K.B. Barber, A.F. Barbosa, R. Bardenet, S.L.C. Barroso, B. Baughman f, J. Bäuml, C. Bau, J.J. Beatty, K.H. Becker, A. Bellétoile, J.A. Bellido, S. BenZvi, C. Berat, X. Bertou, P.L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancu, P. Brogueira, W.C. Brown, R. Bruijn i, P. Buchholz, A. Bueno, L. Buroker, R.E. Burton, K.S. Caballero-Mora, B. Caccianiga, L. Caramete, R. Caruso, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, S.H. Cheng, A. Chiavassa, J.A. Chinellato, J. Chirinos Diaz, J. Chudoba, M. Cilmo, R.W. Clay, G. Cocciolo, L. Collica, M.R. Coluccia, R. Conceição, F. Contrera, H. Cook, M.J. Cooper, J. Coppen, A. Cordier, S. Coutu, C.E. Covault, A. Creusot, A. Cri, J. Cronin, A. Curutiu, S. Dagoret-Campagne, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B.R. Dawson, R.M. de Almeida, M. De Domenico, C. De Donato, S.J. de Jong, G. De La Vega, W.J.M. de Mello Junior, J.R.T. de Mello Neto, I. De Mitri, V. de Souza, K.D. de Vrie, L. del Peral, M. del Río, O. Deligny, H. Dembinski, N. Dhital, C. Di Giulio, M.L. Díaz Castro, P.N. Diep, F. Diogo, C. Dobrigkeit, W. Docter, J.C. D'Olivo, P.N. Dong, A. Dorofeev, J.C. dos Anjo, M.T. Dova, D. D'Urso, I. Dutan, J. Ebr, R. Engel, M. Erdmann, C.O. Escobar, J. Espadanal, A. Etchegoyen, P. Facal San Lui, H. Falcke, K. Fang, G. Farrar, A.C. Fauth, N. Fazzini, A.P. Ferguson, B. Fick, J.M. Figueira, A. Filevich, A. Filipčič, S. Fliescher, C.E. Fracchiolla, E.D. Fraenkel!, O. Fratu, U. Fröhlich, B. Fuch, R. Gaior, R.F. Gamarra, S. Gambetta, B. García, S.T. Garcia Roca, D. Garcia-Gamez, D. Garcia-Pinto, G. Garilli, A. Gascon Bravo, H. Gemmeke, P.L. Ghia, M. Giller, J. Gitto, H. Gla, M.S. Gold, G. Golup, F. Gomez Albarracin, M. Gómez Berisso, P.F. Gómez Vitale, P. Gonçalve, J.G. Gonzalez, B. Gookin, A. Gorgi, P. Gouffon, E. Grashorn, S. Grebe, N. Griffith, A.F. Grillo, Y. Guardincerri, F. Guarino, G.P. Guede, P. Hansen, D. Harari, T.A. Harrison, J.L. Harton, A. Haung, T. Hebbeker, D. Heck, A.E. Herve, C. Hojvat, N. Hollon, V.C. Holme, P. Homola, J.R. Hörandel, P. Horvath, M. Hrabovský, D. Huber, T. Huege, A. Insolia, F. Ionita, A. Italiano, S. Jansen, C. Jarne, S. Jiraskova, M. Josebachuili, K. Kadija, K.H. Kampert, P. Karhan, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, J.L. Kelley, E. Kemp, R.M. Kieckhafer, H.O. Klage, M. Kleifge, J. Kleinfeller, J. Knapp, D.-H. Koang, K. Kotera, N. Krohm, O. Krömer, D. Kruppke-Hansen, D. Kuempel, J.K. Kulbartz, N. Kunka, G. La Rosa, C. Lachaud, D. LaHurd, L. Latronico, R. Lauer, P. Lautridou, S. Le Coz, M.S.A.B. Leão, D. Lebrun, P. Lebrun, M.A. Leigui de Oliveira, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. Lopez Agüera, K. Louedec, J. Lozano Bahilo, L. Lu, A. Lucero, M. Ludwig, H. Lyberi, M.C. Maccarone, C. Macolino, S. Maldera, J. Maller, D. Mandat, P. Mantsch, A.G. Mariazzi, J. Marin, V. Marin, I.C. Mari, H.R. Marquez Falcon, G. Marsella, D. Martello, L. Martin, H. Martinez, O. Martínez Bravo, D. Martraire, J.J. Masías Meza, H.J. Mathe, J. Matthew, J.A.J. Matthew, G. Matthiae, D. Maurel, D. Maurizio, P.O. Mazur, G. Medina-Tanco, M. Melissa, D. Melo, E. Menichetti, A. Menshikov, P. Mertsch, C. Meurer, R. Meyhandan, S. Mićanović, M.I. Micheletti, I.A. Minaya, L. Miramonti, L. Molina-Bueno, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morale, C. Morello, E. Moreno, J.C. Moreno, M. Mostafá, C.A. Moura, M.A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra ‡, J.L. Navarro, S. Nava, P. Necesal, L. Nellen, A. Nelle, J. 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D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d'Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sánchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, O., Sima, A., 'Smiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y. N., Srivastava, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., Šuša, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Taşcău, R., Tcaciuc, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, Valore, Laura, G., van Aar, A. M., van den Berg, A., van Vliet, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, B. J., Whelan, A., Widom, G., Wieczorek, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, M., Wommer, B., Wundheiler, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano Garcia, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, APC - Astrophysique des Hautes Energies (APC - AHE), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), T., Antičić, C., Aramo, B., Baughman f, R., Bruijn i, M., Cilmo, Cocciolo, Giuseppe, Coluccia, MARIA RITA, DE MITRI, Ivan, D., D'Urso, K., Fang, E. D., Fraenkel!, G., Garilli, F., Guarino, Marsella, Giovanni, Martello, Daniele, S., Mićanović, G., Navarra ‡, J., Pękala, Perrone, Lorenzo, F., SÃ! ¡nchez, Scherini, Viviana, A., Śmiałkowski, L., Valore, T., Yamamoto a, I., Zaw h, A., Zepeda b, Research unit Nuclear & Hadron Physics, KVI - Center for Advanced Radiation Technology, and Research unit Astroparticle Physics

Subjects
Astronomy, Energy flux, Astrophysics, 01 natural sciences, 7. Clean energy, Neutron flux, Observatory, cosmic rays – Galaxy: disk – methods: data analysis, Neutron detection, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, ASTRONOMY, Pierre Auger Observatory, COSMIC-RAYS, Radiación cósmica, Ultra High Energy Cosmic Ray, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, MASSIVE BLACK-HOLE, Física nuclear, Pierre Auger Observatory, high-energy neutron sources, neutron flux limit, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Galaxia, Galaxy: disk, cosmic rays, 0103 physical sciences, high-energy neutron sources, Neutron, Cosmic-ray observatory, Ciencias Exactas, ANISOTROPY, 010308 nuclear & particles physics, GAMMA-RAYS, Análisis de datos, Física, Astronomy and Astrophysics, ASTROFÍSICA, neutron flux limit, methods: data analysis, NÊUTRONS, Space and Planetary Science, Ultra High Energy Cosmic Rays, Experimental High Energy Physics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], GALACTIC-CENTER
Abstract

A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicative of a flux of neutral particles from a discrete source. The search covers from −90◦ to +15◦ in declination using four different energy ranges above 1 EeV (1018 eV). The method used in this search is more sensitive to neutrons than to photons. The upper limit on a neutron flux is derived for a dense grid of directions for each of the four energy ranges. These results constrain scenarios for the production of ultrahigh energy cosmic rays in the Galaxy., Facultad de Ciencias Exactas

Published
2012

27. Measurement of the cosmic ray energy spectrum using hybrid events of the Pierre Auger Observatory

Author

M. Settimo, P. Abreu, M. Aglietta, M. Ahlers, E. J. Ahn, I. F. M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez Muñiz, R. Alves Batista, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, C. Aramo, E. Arganda, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, M. Avenier, G. Avila, A. M. Badescu, M. Balzer, K. B. Barber, A. F. Barbosa, R. Bardenet, S. L. C. Barroso, B. Baughman f, J. Bäuml, C. Baus, J. J. Beatty, K. H. Becker, A. Bellétoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancus, P. Brogueira, W. C. Brown, R. Bruijn i, P. Buchholz, A. Bueno, L. Buroker, R. E. Burton, K. S. Caballero Mora, B. Caccianiga, L. Caramete, R. Caruso, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, S. H. Cheng, A. Chiavassa, J. A. Chinellato, J. Chirinos Diaz, J. Chudoba, M. Cilmo, R. W. Clay, L. Collica, R. Conceição, F. Contreras, H. Cook, M. J. Cooper, J. Coppens, A. Cordier, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. Cronin, A. Curutiu, S. Dagoret Campagne, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, V. de Souza, K. D. de Vries, L. del Peral, M. del Río, O. Deligny, H. Dembinski, N. Dhital, C. Di Giulio, M. L. Díaz Castro, P. N. Diep, F. Diogo, C. Dobrigkeit, W. Docters, J. C. D'Olivo, P. N. Dong, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D'Urso, I. Dutan, J. Ebr, R. Engel, M. Erdmann, C. O. Escobar, J. Espadanal, A. Etchegoyen, P. Facal San Luis, H. Falcke, K. Fang, G. Farrar, A. C. Fauth, N. Fazzini, A. P. Ferguson, B. Fick, J. M. Figueira, A. Filevich, A. Filipčič, S. Fliescher, C. E. Fracchiolla, E. D. Fraenkel!, O. Fratu, U. Fröhlich, B. Fuchs, R. Gaior, R. F. Gamarra, S. Gambetta, B. García, S. T. Garcia Roca, D. Garcia Gamez, D. Garcia Pinto, G. Garilli, A. Gascon Bravo, H. Gemmeke, P. L. Ghia, M. Giller, J. Gitto, H. Glass, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gómez Berisso, P. F. Gómez Vitale, P. Gonçalves, J. G. Gonzalez, B. Gookin, A. Gorgi, P. Gouffon, E. Grashorn, S. Grebe, N. Griffith, A. F. Grillo, Y. Guardincerri, F. Guarino, G. P. Guedes, P. Hansen, D. Harari, T. A. Harrison, J. L. Harton, A. Haungs, T. Hebbeker, D. Heck, A. E. Herve, C. Hojvat, N. Hollon, V. C. Holmes, P. Homola, J. R. Hörandel, P. Horvath, M. Hrabovský, D. Huber, T. Huege, A. Insolia, F. Ionita, A. Italiano, S. Jansen, C. Jarne, S. Jiraskova, M. Josebachuili, K. Kadija, K. H. Kampert, P. Karhan, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, J. L. Kelley, E. Kemp, R. M. Kieckhafer, H. O. Klages, M. Kleifges, J. Kleinfeller, J. Knapp, D. H. Koang, K. Kotera, N. Krohm, O. Krömer, D. Kruppke Hansen, D. Kuempel, J. K. Kulbartz, N. Kunka, G. La Rosa, C. Lachaud, D. LaHurd, L. Latronico, R. Lauer, P. Lautridou, S. Le Coz, M. S. A. B. Leão, D. Lebrun, P. Lebrun, M. A. Leigui de Oliveira, A. Letessier Selvon, I. Lhenry Yvon, K. Link, R. López, A. Lopez Agüera, K. Louedec, J. Lozano Bahilo, L. Lu, A. Lucero, M. Ludwig, H. Lyberis, M. C. Maccarone, C. Macolino, S. Maldera, J. Maller, D. Mandat, P. Mantsch, A. G. Mariazzi, J. Marin, V. Marin, I. C. Maris, H. R. Marquez Falcon, L. Martin, H. Martinez, O. Martínez Bravo, D. Martraire, J. J. Masías Meza, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurel, D. Maurizio, P. O. Mazur, G. Medina Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, P. Mertsch, C. Meurer, R. Meyhandan, S. Mićanović, M. I. Micheletti, I. A. Minaya, L. Miramonti, L. Molina Bueno, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, E. Moreno, J. C. Moreno, M. Mostafá, C. A. Moura, M. A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra ‡, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, A. Nelles, J. Neuser, P. T. Nhung, M. Niechciol, L. Niemietz, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nožka, J. Oehlschläger, A. Olinto, M. Ortiz, N. Pacheco, D. Pakk Selmi Dei, M. Palatka, J. Pallotta, N. Palmieri, G. Parente, E. Parizot, A. Parra, S. Pastor, T. Paul, M. Pech, J. Pękala, R. Pelayo, I. M. Pepe, R. Pesce, E. Petermann, S. Petrera, A. Petrolini, Y. Petrov, C. Pfendner, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, V. H. Ponce, M. Pontz, A. Porcelli, P. Privitera, M. Prouza, E. J. Quel, S. Querchfeld, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. Riggi, M. Risse, P. Ristori, H. Rivera, V. Rizi, J. Roberts, W. Rodrigues de Carvalho, G. Rodriguez, I. Rodriguez Cabo, J. Rodriguez Martino, J. Rodriguez Rojo, M. D. Rodríguez Frías, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouillé d'Orfeuil, E. Roulet, A. C. Rovero, C. Rühle, A. Saftoiu, F. Salamida, H. Salazar, F. Salesa Greus, G. Salina, F. SÃ! ¡nchez, C. E. Santo, E. Santos, E. M. Santos, F. Sarazin, B. Sarkar, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovánek, F. Schröder, S. Schulte, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, A. Shadkam, R. C. Shellard, I. Sidelnik, G. Sigl, H. H. Silva Lopez, O. Sima, A. Śmiałkowski, R. Šmída, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, Y. N. Srivastava, S. Stanic, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, T. Suomijärvi, A. D. Supanitsky, T. Šuša, M. S. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, A. Tapia, M. Tartare, O. Taşcău, R. Tcaciuc, N. T. Thao, D. Thomas, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, M. Tueros, R. Ulrich, M. Unger, M. Urban, J. F. Valdés Galicia, I. Valiño, L. Valore, G. van Aar, A. M. van den Berg, A. van Vliet, E. Varela, B. Vargas Cárdenas, J. R. Vázquez, R. A. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Walz, A. A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, S. Westerhoff, B. J. Whelan, A. Widom, G. Wieczorek, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. Williams, T. Winchen, M. Wommer, B. Wundheiler, T. Yamamoto a, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano Garcia, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw h, A. Zepeda b, J. Zhou, Y. Zhu, M. Zimbres Silva, M. Ziolkowski ., COCCIOLO, GIUSEPPE, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, Mariangela Settimo for the Pierre Auger, Collaboration, M., Ambrosio, C., Aramo, M., Cilmo, D'Urso, Domenico, Guarino, Fausto, Valore, Laura, M. Settimo, P. Abreu, M. Aglietta, M. Ahler, E.J. Ahn, I.F.M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, A. Almela, J. Alvarez Castillo, J. Alvarez-Muñiz, R. Alves Batista, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, C. Aramo, E. Arganda, F. Arquero, H. Asorey, P. Assi, J. Aublin, M. Ave, M. Avenier, G. Avila, A.M. Badescu, M. Balzer, K.B. Barber, A.F. Barbosa, R. Bardenet, S.L.C. Barroso, B. Baughman f, J. Bäuml, C. Bau, J.J. Beatty, K.H. Becker, A. Bellétoile, J.A. Bellido, S. BenZvi, C. Berat, X. Bertou, P.L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancu, P. Brogueira, W.C. Brown, R. Bruijn i, P. Buchholz, A. Bueno, L. Buroker, R.E. Burton, K.S. Caballero-Mora, B. Caccianiga, L. Caramete, R. Caruso, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, S.H. Cheng, A. Chiavassa, J.A. Chinellato, J. Chirinos Diaz, J. Chudoba, M. Cilmo, R.W. Clay, G. Cocciolo, L. Collica, M.R. Coluccia, R. Conceição, F. Contrera, H. Cook, M.J. Cooper, J. Coppen, A. Cordier, S. Coutu, C.E. Covault, A. Creusot, A. Cri, J. Cronin, A. Curutiu, S. Dagoret-Campagne, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B.R. Dawson, R.M. de Almeida, M. De Domenico, C. De Donato, S.J. de Jong, G. De La Vega, W.J.M. de Mello Junior, J.R.T. de Mello Neto, I. De Mitri, V. de Souza, K.D. de Vrie, L. del Peral, M. del Río, O. Deligny, H. Dembinski, N. Dhital, C. Di Giulio, M.L. Díaz Castro, P.N. Diep, F. Diogo, C. Dobrigkeit, W. Docter, J.C. D'Olivo, P.N. Dong, A. Dorofeev, J.C. dos Anjo, M.T. Dova, D. D'Urso, I. Dutan, J. Ebr, R. Engel, M. Erdmann, C.O. Escobar, J. Espadanal, A. Etchegoyen, P. Facal San Lui, H. Falcke, K. Fang, G. Farrar, A.C. Fauth, N. Fazzini, A.P. Ferguson, B. Fick, J.M. Figueira, A. Filevich, A. Filipčič, S. Fliescher, C.E. Fracchiolla, E.D. Fraenkel!, O. Fratu, U. Fröhlich, B. Fuch, R. Gaior, R.F. Gamarra, S. Gambetta, B. García, S.T. Garcia Roca, D. Garcia-Gamez, D. Garcia-Pinto, G. Garilli, A. Gascon Bravo, H. Gemmeke, P.L. Ghia, M. Giller, J. Gitto, H. Gla, M.S. Gold, G. Golup, F. Gomez Albarracin, M. Gómez Berisso, P.F. Gómez Vitale, P. Gonçalve, J.G. Gonzalez, B. Gookin, A. Gorgi, P. Gouffon, E. Grashorn, S. Grebe, N. Griffith, A.F. Grillo, Y. Guardincerri, F. Guarino, G.P. Guede, P. Hansen, D. Harari, T.A. Harrison, J.L. Harton, A. Haung, T. Hebbeker, D. Heck, A.E. Herve, C. Hojvat, N. Hollon, V.C. Holme, P. Homola, J.R. Hörandel, P. Horvath, M. Hrabovský, D. Huber, T. Huege, A. Insolia, F. Ionita, A. Italiano, S. Jansen, C. Jarne, S. Jiraskova, M. Josebachuili, K. Kadija, K.H. Kampert, P. Karhan, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, J.L. Kelley, E. Kemp, R.M. Kieckhafer, H.O. Klage, M. Kleifge, J. Kleinfeller, J. Knapp, D.-H. Koang, K. Kotera, N. Krohm, O. Krömer, D. Kruppke-Hansen, D. Kuempel, J.K. Kulbartz, N. Kunka, G. La Rosa, C. Lachaud, D. LaHurd, L. Latronico, R. Lauer, P. Lautridou, S. Le Coz, M.S.A.B. Leão, D. Lebrun, P. Lebrun, M.A. Leigui de Oliveira, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. Lopez Agüera, K. Louedec, J. Lozano Bahilo, L. Lu, A. Lucero, M. Ludwig, H. Lyberi, M.C. Maccarone, C. Macolino, S. Maldera, J. Maller, D. Mandat, P. Mantsch, A.G. Mariazzi, J. Marin, V. Marin, I.C. Mari, H.R. Marquez Falcon, G. Marsella, D. Martello, L. Martin, H. Martinez, O. Martínez Bravo, D. Martraire, J.J. Masías Meza, H.J. Mathe, J. Matthew, J.A.J. Matthew, G. Matthiae, D. Maurel, D. Maurizio, P.O. Mazur, G. Medina-Tanco, M. Melissa, D. Melo, E. Menichetti, A. Menshikov, P. Mertsch, C. Meurer, R. Meyhandan, S. Mićanović, M.I. Micheletti, I.A. Minaya, L. Miramonti, L. Molina-Bueno, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morale, C. Morello, E. Moreno, J.C. Moreno, M. Mostafá, C.A. Moura, M.A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra ‡, J.L. Navarro, S. Nava, P. Necesal, L. Nellen, A. Nelle, J. Neuser, P.T. Nhung, M. Niechciol, L. Niemietz, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nožka, J. Oehlschläger, A. Olinto, M. Ortiz, N. Pacheco, D. Pakk Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, G. Parente, E. Parizot, A. Parra, S. Pastor, T. Paul, M. Pech, J. Pękala, R. Pelayo, I.M. Pepe, L. Perrone, R. Pesce, E. Petermann, S. Petrera, A. Petrolini, Y. Petrov, C. Pfendner, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, V.H. Ponce, M. Pontz, A. Porcelli, P. Privitera, M. Prouza, E.J. Quel, S. Querchfeld, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. Riggi, M. Risse, P. Ristori, H. Rivera, V. Rizi, J. Robert, W. Rodrigues de Carvalho, G. Rodriguez, I. Rodriguez Cabo, J. Rodriguez Martino, J. Rodriguez Rojo, M.D. Rodríguez-Fría, G. Ro, J. Rosado, T. Rossler, M. Roth, B. Rouillé-d'Orfeuil, E. Roulet, A.C. Rovero, C. Rühle, A. Saftoiu, F. Salamida, H. Salazar, F. Salesa Greu, G. Salina, F. SÃ! ¡nchez, C.E. Santo, E. Santo, E.M. Santo, F. Sarazin, B. Sarkar, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovánek, F. Schröder, S. Schulte, D. Schuster, S.J. Sciutto, M. Scuderi, A. Segreto, A. Shadkam, R.C. Shellard, I. Sidelnik, G. Sigl, H.H. Silva Lopez, O. Sima, A. Śmiałkowski, R. Šmída, G.R. Snow, P. Sommer, J. Sorokin, H. Spinka, R. Squartini, Y.N. Srivastava, S. Stanic, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, T. Suomijärvi, A.D. Supanitsky, T. Šuša, M.S. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, A. Tapia, M. Tartare, O. Taşcău, R. Tcaciuc, N.T. Thao, D. Thoma, J. Tiffenberg, C. Timmerman, W. Tkaczyk, C.J. Todero Peixoto, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, P. Travnicek, D.B. Tridapalli, G. Tristram, E. Trovato, M. Tuero, R. Ulrich, M. Unger, M. Urban, J.F. Valdés Galicia, I. Valiño, L. Valore, G. van Aar, A.M. van den Berg, A. van Vliet, E. Varela, B. Vargas Cárdena, J.R. Vázquez, R.A. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Walz, A.A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, S. Westerhoff, B.J. Whelan, A. Widom, G. Wieczorek, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. William, T. Winchen, M. Wommer, B. Wundheiler, T. Yamamoto a, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano Garcia, E. Za, D. Zavrtanik, M. Zavrtanik, I. Zaw h, A. Zepeda b, J. Zhou, Y. Zhu, M. Zimbres Silva, M. Ziolkowski ., M., Settimo, P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I. F. M., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, A., Aminaei, L., Anchordoqui, S., Andringa, T., Antičić, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman f, J., Bäuml, C., Bau, J. J., Beatty, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, R., Bruijn i, P., Buchholz, A., Bueno, L., Buroker, R. E., Burton, K. S., Caballero Mora, B., Caccianiga, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chirinos Diaz, J., Chudoba, R. W., Clay, Cocciolo, Giuseppe, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, L., del Peral, M., del Río, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, M. L., Díaz Castro, P. N., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D'Urso, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, B., Fick, J. M., Figueira, A., Filevich, A., Filipčič, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel!, O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, H., Gemmeke, P. L., Ghia, M., Giller, J., Gitto, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, J. G., Gonzalez, B., Gookin, A., Gorgi, P., Gouffon, E., Grashorn, S., Grebe, N., Griffith, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, P., Hansen, D., Harari, T. A., Harrison, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, F., Ionita, A., Italiano, S., Jansen, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, D., Lahurd, L., Latronico, R., Lauer, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, J. J., Masías Meza, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, C., Meurer, R., Meyhandan, S., Mićanović, M. I., Micheletti, I. A., Minaya, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, M., Mostafá, C. A., Moura, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra ‡, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, M., Niechciol, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nožka, J., Oehlschläger, A., Olinto, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pękala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, A., Petrolini, Y., Petrov, C., Pfendner, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, V. H., Ponce, M., Pontz, A., Porcelli, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, W., Rodrigues de Carvalho, G., Rodriguez, I., Rodriguez Cabo, J., Rodriguez Martino, J., Rodriguez Rojo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d'Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., SÃ! ¡nchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, O., Sima, A., Śmiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y. N., Srivastava, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., Šuša, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tapia, M., Tartare, O., Taşcău, R., Tcaciuc, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, L., Valore, G., van Aar, A. M., van den Berg, A., van Vliet, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, S., Westerhoff, B. J., Whelan, A., Widom, G., Wieczorek, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, M., Wommer, B., Wundheiler, T., Yamamoto a, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano Garcia, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw h, A., Zepeda b, J., Zhou, Y., Zhu, M., Zimbres Silva, M. Ziolkowski, ., Universität Siegen [Siegen], Dipartimento di Matematica e Fisica 'Ennio De Giorgi', Università del Salento [Lecce], Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO), Observatorio Pierre Auger, CNRS-INSU, Contrat europe : PIRSES-2009-GA-246806, Marie Curie-IRSES/EPLANET, European Project: 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET(2011), KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)

Subjects
FLUORESCENCE DETECTOR, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, energy spectrum, FOS: Physical sciences, General Physics and Astronomy, Flux, Cosmic ray, EXTENSIVE AIR-SHOWERS, SURFACE DETECTOR, 01 natural sciences, Cosmic Ray, Auger, Pierre Auger Observatory, Monte Carlo simulations, ultra-high energy cosmic rays, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Observatory, 0103 physical sciences, RECONSTRUCTION, Fermilab, 010306 general physics, UHE Cosmic Rays, Monte Carlo, Energy Spectrum, TRIGGER, Nuclear Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, PACS: 96.50.S, 96.50.sb, 96.50.sd, 98.70.Sa, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Detector, Astrophysics::Instrumentation and Methods for Astrophysics, PROFILES, [PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph], Experimental High Energy Physics, SIMULATION, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, ARRAY, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, RAIOS CÓSMICOS
Abstract

The energy spectrum of ultra-high energy cosmic rays above 10$^{18}$ eV is measured using the hybrid events collected by the Pierre Auger Observatory between November 2005 and September 2010. The large exposure of the Observatory allows the measurement of the main features of the energy spectrum with high statistics. Full Monte Carlo simulations of the extensive air showers (based on the CORSIKA code) and of the hybrid detector response are adopted here as an independent cross check of the standard analysis (Phys. Lett. B 685, 239 (2010)). The dependence on mass composition and other systematic uncertainties are discussed in detail and, in the full Monte Carlo approach, a region of confidence for flux measurements is defined when all the uncertainties are taken into account. An update is also reported of the energy spectrum obtained by combining the hybrid spectrum and that measured using the surface detector array., 13 pages, 12 figures

Published
2012

28. Validation of MIPAS-ENVISAT H2O operational data collected between July 2002 and March 2004

Author

Andreas Fix, Dietrich G. Feist, A. Lengel, Anne Kleinert, Carmela Cornacchia, Marco Iarlori, Jean-Baptiste Renard, Stefan Müller, Joëlle Ovarlez, V. Rizi, Gwenaël Berthet, Gabriele Stiller, Herbert Fischer, Susanne Rohs, Gerald Wetzel, C. Piccolo, Piera Raspollini, Mathias Milz, Mark Weber, Gelsomina Pappalardo, Lucia Mona, Cornelius Schiller, Hermann Oelhaf, G. Zhang, and Astrid Bracher

Subjects
Atmospheric sounding, Atmospheric Science, 010504 meteorology & atmospheric sciences, Meteorology, 010502 geochemistry & geophysics, 01 natural sciences, Occultation, Troposphere, Altitude, Lidar, 13. Climate action, Environmental science, Satellite, Tropopause, Stratosphere, 0105 earth and related environmental sciences, Remote sensing
Abstract

Water vapour (H2O) is one of the operationally retrieved key species of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard the Environmental Satellite (ENVISAT) which was launched into its sun-synchronous orbit on 1 March 2002 and operated until April 2012. Within the MIPAS validation activities, independent observations from balloons, aircraft, satellites, and ground-based stations have been compared to European Space Agency (ESA) version 4.61 operational H2O data comprising the time period from July 2002 until March 2004 where MIPAS measured with full spectral resolution. No significant bias in the MIPAS H2O data is seen in the lower stratosphere (above the hygropause) between about 15 and 30 km. Differences of H2O quantities observed by MIPAS and the validation instruments are mostly well within the combined total errors in this altitude region. In the upper stratosphere (above about 30 km), a tendency towards a small positive bias (up to about 10%) is present in the MIPAS data when compared to its balloon-borne counterpart MIPAS-B, to the satellite instruments HALOE (Halogen Occultation Experiment) and ACE-FTS (Atmospheric Chemistry Experiment, Fourier Transform Spectrometer), and to the millimeter-wave airborne sensor AMSOS (Airborne Microwave Stratospheric Observing System). In the mesosphere the situation is unclear due to the occurrence of different biases when comparing HALOE and ACE-FTS data. Pronounced deviations between MIPAS and the correlative instruments occur in the lowermost stratosphere and upper troposphere, a region where retrievals of H2O are most challenging. Altogether it can be concluded that MIPAS H2O profiles yield valuable information on the vertical distribution of H2O in the stratosphere with an overall accuracy of about 10 to 30% and a precision of typically 5 to 15% – well within the predicted error budget, showing that these global and continuous data are very valuable for scientific studies. However, in the region around the tropopause retrieved MIPAS H2O profiles are less reliable, suffering from a number of obstacles such as retrieval boundary and cloud effects, sharp vertical discontinuities, and frequent horizontal gradients in both temperature and H2O volume mixing ratio (VMR). Some profiles are characterized by retrieval instabilities.

Published
2013

29. Four-dimensional distribution of the 2010 Eyjafjallajökull volcanic cloud over Europe observed by EARLINET

Author

Adolfo Comerón, Keith M. Wilson, Mariana Adam, Doina Nicolae, Jörg Schmidt, V. Rizi, Aldo Giunta, Diego Lange, Anja Hiebsch, Michaël Sicard, Gianluca Pisani, Michael Gausa, L. Alados Arboledas, Giuseppe D'Amico, Antonella Boselli, Kerstin Stebel, Ilya Serikov, Valentin Mitev, Christophe Pietras, Marco Iarlori, A. Papayannis, Frank Wagner, Rodanthi-Elisavet Mamouri, F. De Tomasi, Arnoud Apituley, Aleksander Pietruczuk, Ulla Wandinger, Helmuth Giehl, Dimitrios Balis, Anatoli Chaikovsky, Jana Preißler, Ivan Grigorov, Thomas Trickl, Francisco Navas-Guzmán, Ina Mattis, Fabio Madonna, E. Giannakaki, Patric Seifert, Albert A. Ruth, Matthias Wiegner, Francisco Molero, Xuan Wang, Maria Rita Perrone, Franziska Schnell, Valentin Simeonov, Gelsomina Pappalardo, Lucia Mona, Holger Linné, Juan Cuesta, Silke Groß, Manuel Pujadas, Volker Freudenthaler, Martial Haeffelin, Juan Antonio Bravo-Aranda, Albert Ansmann, Matthias Tesche, Aldo Amodeo, Michael A. P. McAuliffe, N. Spinelli, G., Pappalardo, L., Mona, G., D'Amico, U., Wandinger, M., Adam, A., Amodeo, A., Ansmann, A., Apituley, L., Alados Arboleda, D., Bali, A., Boselli, J. A., Bravo Aranda, A., Chaikovsky, A., Comeron, J., Cuesta, DE TOMASI, Ferdinando, V., Freudenthaler, M., Gausa, E., Giannakaki, H., Giehl, A., Giunta, I., Grigorov, S., Groß, M., Haeffelin, A., Hiebsch, M., Iarlori, D., Lange, H., Linné, F., Madonna, I., Matti, R. E., Mamouri, M. A. P., Mcauliffe, V., Mitev, F., Molero, F., Navas Guzman, D., Nicolae, A., Papayanni, Perrone, Maria Rita, C., Pietra, A., Pietruczuk, G., Pisani, J., Preißler, M., Pujada, V., Rizi, A. A., Ruth, J., Schmidt, F., Schnell, P., Seifert, I., Serikov, M., Sicard, V., Simeonov, N., Spinelli, K., Stebel, M., Tesche, T., Trickl, X., Wang, F., Wagner, M., Wiegner, K. M., Wilson, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Pierre-Simon-Laplace (IPSL), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), F., De Tomasi, S., Gro?, H., Linn?, M. R., Perrone, Pisani, Gianluca, J., Prei?ler, and Spinelli, Nicola

Subjects
Plume, Atmospheric Science, 010504 meteorology & atmospheric sciences, Cloud cover, Volcanological research, 010501 environmental sciences, 01 natural sciences, lcsh:Chemistry, Troposphere, Lidar observations, Ice nucleation properties, Lidar, geography.geographical_feature_category, Northern alpine region, Optical properties, ICE NUCLEATION PROPERTIES, lcsh:QC1-999, Meteorology and Atmospheric Sciences, Eruption, Engineering and Technology, Geology, NORTHERN ALPINE REGION, Meteorology, IN-SITU MEASUREMENTS, Meteorologi och atmosfärforskning, Ash clouds, STRATOSPHERIC AEROSOL OPTICAL-PROPERTIES IBERIAN PENINSULA ASH DISPERSION ERUPTION PLUME, Volcanic layers, Civil Engineering, 010309 optics, Altitude, Stratospheric aerosol, volcanic ash, 0103 physical sciences, lidar, 0105 earth and related environmental sciences, Multiwavelength raman lidar, geography, Vulcanian eruption, Aerosol profile, MULTIWAVELENGTH RAMAN LIDAR, EARLINET, Measurements, Volcanic emissions, Volcanic eruption, Ash dispersion, Aerosol, lcsh:QD1-999, Volcano, Eyjafjallajökull, [SDU]Sciences of the Universe [physics], 13. Climate action, Eyjafjallajökull Volcano (Iceland), Volcanic ash, aerosols, lcsh:Physics, Iberian Peninsula
Abstract

The eruption of the Icelandic volcano Eyjafjallajökull in April–May 2010 represents a "natural experiment" to study the impact of volcanic emissions on a continental scale. For the first time, quantitative data about the presence, altitude, and layering of the volcanic cloud, in conjunction with optical information, are available for most parts of Europe derived from the observations by the European Aerosol Research Lidar NETwork (EARLINET). Based on multi-wavelength Raman lidar systems, EARLINET is the only instrument worldwide that is able to provide dense time series of high-quality optical data to be used for aerosol typing and for the retrieval of particle microphysical properties as a function of altitude. In this work we show the four-dimensional (4-D) distribution of the Eyjafjallajökull volcanic cloud in the troposphere over Europe as observed by EARLINET during the entire volcanic event (15 April–26 May 2010). All optical properties directly measured (backscatter, extinction, and particle linear depolarization ratio) are stored in the EARLINET database available at http://www.earlinet.org. A specific relational database providing the volcanic mask over Europe, realized ad hoc for this specific event, has been developed and is available on request at http://www.earlinet.org. During the first days after the eruption, volcanic particles were detected over Central Europe within a wide range of altitudes, from the upper troposphere down to the local planetary boundary layer (PBL). After 19 April 2010, volcanic particles were detected over southern and south-eastern Europe. During the first half of May (5–15 May), material emitted by the Eyjafjallajökull volcano was detected over Spain and Portugal and then over the Mediterranean and the Balkans. The last observations of the event were recorded until 25 May in Central Europe and in the Eastern Mediterranean area. The 4-D distribution of volcanic aerosol layering and optical properties on European scale reported here provides an unprecedented data set for evaluating satellite data and aerosol dispersion models for this kind of volcanic events., The financial support for EARLINET by the European Union under grant RICA 025991 in the Sixth Framework Programme is gratefully acknowledged. Since 2011 EARLINET has been integrated in the ACTRIS Research Infrastructure Project supported by the European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 262254. The authors acknowledge the ESA financial support under the ESRIN contract 21769/08/I-OL and 22202/09/I-EC. Additional financial support has been received from the Andalusia Regional Government through project P10-RNM-6299 and from the Spanish Ministry of Science and Technology through projects CGL2010-18782, and CSD2007-00067.

Published
2013

30. Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory

Author

J. Abraham, P. Abreu, M. Aglietta, C. Aguirre, E. J. Ahn, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Muniz, M. Ambrosio, L. Anchordoqui, S. Andringa, A. Anzalone, C. Aramo, E. Arganda, S. Argir, K. Arisaka, F. Arneodo, F. Arqueros, T. Asch, H. Asorey, P. Assis, J. Aublin, M. Ave, G. Avila, A. Bacher, T. Backer, D. Badagnani, K. B. Barber, A. F. Barbosa, H. J. M. Barbosa, N. Barenthien, S. L. C. Barroso, B. Baughman, P. Bauleo, J. J. Beatty, T. Beau, B. R. Becker, K. H. Becker, A. Belletoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, O. Blanch Bigas, F. Blanco, C. Bleve, H. Blumer, M. Bohacova, E. Bollmann, H. Bolz, C. Bonifazi, R. Bonino, N. Borodai, F. Bracci, J. Brack, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, N. G. Busca, K. S. Caballero Mora, D. Camin, L. Caramete, R. Caruso, W. Carvalho, A. Castellina, J. Castro, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, A. Chiavassa, J. A. Chinellato, A. Chou, J. Chudoba, J. Chye, P. D. J. Clark, R. W. Clay, E. Colombo, R. Conceicao, B. Connolly, F. Contreras, J. Coppens, A. Cordero, A. Cordier, U. Cotti, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. W. Cronin, J. Cuautle, A. Curutiu, S. Dagoret Campagne, R. Dallier, F. Daudo, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, V. de Souza, K. D. de Vries, G. Decerprit, L. del Peral, O. Deligny, A. Della Selva, C. Delle Fratte, H. Dembinski, C. Di Giulio, J. C. Diaz, P. N. Diep, C. Dobrigkeit, J. C. D’Olivo, P. N. Dong, D. Dornic, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D’Urso, I. Dutan, M. A. Du Vernois, R. Engel, M. Erdmann, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, F. Ferrer, A. Ferrero, B. Fick, A. Filevich, A. Filipcic, I. Fleck, S. Fliescher, R. Fonte, C. E. Fracchiolla, E. D. Fraenkel, W. Fulgione, R. F. Gama rra, S. Gambetta, B. Garcıa, D. Garcıa Gamez, D. Garcia Pinto, X. Garrido, H. Geenen, G. Gelmini, H. Gemmekeai, P. L. Ghia, U. Giaccari, K. Gibbs, M. Giller, J. Gitto, H. Glass, L. M. Goggin, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gomez Berisso, P. F. Gomez Vitale, P. Goncalves, M. Goncalves do Amaral, D. Gonzalez, J. G. Gonzalez, D. Gora, A. Gorgi, P. Gouffon, E. Grashorn, V. Grassi, S. Grebe, M. Grigat, A. F. Grillo, J. Grygar, Y. Guardincerri, N. Guardone, C. Guerard, F. Guarino, R. Gumbsheimer, G. P. Guedes, J. Gutierrez, J. D. Hague, V. Halenka, P. Hansen, D. Harari, S. Harmsma, S. Hartmann, J. L. Harton, A. Haungs, M. D. Healy, T. Hebbeker, G. Hebrero, D. Heck, C. Hojvat, V. C. Holmes, P. Homola, G. Hofman, J. R. Horandel, A. Horneffer, M. Horvat, M. Hrabovsky, H. Hucker, T. Huege, M. Hussain, M. Iarlori, A. Insolia, F. Ionita, A. Italiano, S. Jiraskova, M. Kaducak, K. H. Kampert, T. Karova, P. Kasper, B. Ke, B. Keilhauer, E. Kempq, H. Kern, R. M. Kieckhafer, H. O. Klages, M. . Kleifges, J. Kleinfeller, R. Knapik, J. Knapp, D. H. Koang, A. Kopmann, A. Krieger, O. Kromer, D. Kruppke Hansen, D. Kuempel, N. Kunka, A. Kusenko, G. La Rosa, C. Lachaud, B. L. Lago, P. Lautridou, M. S. A. B. Leao, D. Lebrun, P. Lebrun, J. Lee, M. A. Leiguide Oliveira, A. Lemiere, A. Letessier Selvon, M. Leuthold, I. Lhenry Yvon, R. Lopez, A. Lopez Aguera, K. Louedec, J. Lozano Bahilo, A. Lucero, H. Lyberis, M. C. Maccarone, C. Macolino, S. Maldera, M. Malek, D. Mandat, P. Mantsch, F. Marchetto, A. G. Mariazzi, I. C. Maris, H. R. Marquez Falcon, O. Martineau, O. Martınez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurizio, P. O. Mazur, M. McEwen, R. R. McNeil, G. Medina Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, R. Meyhandan, M. I. Micheletti, G. Miele, W. Miller, L. Miramonti, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, J. C. Moreno, C. Morris, M. Mostafa, C. A. Moura, M. Mucchi, S. Mueller, M. . A. Muller, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, F. Nerling, C. Newman Holmes, D. Newton, P. T. Nhung, D. Nicotra, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nozka, M. Nyklicek, J. Oehlschlager, A. Olinto, P. Oliva, V. M. Olmos Gilbaja, M. Ortiz, F. Ortolani, B. Oßwald, N. Pacheco, D. Pakk Selmi Dei, M. Palatka, J. Pallotta, G. Parente, E. Parizot, S. Parlati, S. Pastor, M. Patel, T. Paul, V. Pavlidou, K. Payet, M. Pech, J. Pekala, I. M. Pepe, R. Pesce, E. Petermann, S. Petrera, P. Petrinca, A. Petrolini, Y. Petrov, J. Petrovic, C. Pfendner, A. Pichel, R. Piegaia, T. Pierog, M. Pimenta, T. Pinto, V. Pirronello, O. Pisanti, M. Platino, J. Pochon, V. H. Ponce, M. Pontz, J. Pouryamout, L. Prado J.r., P. Privitera, M. Prouza, E. J. Quel, G. Raia, J. Rautenberg, O. Ravel, D. Ravignani, A. Redondo, H. C. Reis, S. Reucroft, B. Revenu, F. A. S. Rezendem, J. Ridky, S. Riggi, M. Risse, C. Riviere, V. Rizi, C. Robledo, M. D. Roberts, G. Rodriguez, J. Ro driguez Martino, J. Rodriguez Rojo, I. Rodriguez Cabo, M. D. Rodrıguez Frias, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouille d’Orfeuil, E. Roulet, A. C. Rovero, F. Salamida, H. Salazar, G. Salina, F. Sanchez, M. Santander, C. E. Santo, E. M. Santos, F. Sarazin, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, G. Schleif, A. Schmidt, F. Schmidt, T. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovanek, F. Schroeder, S. Schulte, F. Schussler, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, D. Semikoz, G. Sequieros, M. Settimo, R. C. Shellard, I. Sidelnik, B. B. Siffert, A. Smiakowski, R. Smıda, A. G. K. Smith, B. E. Smith, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, E. Strazzeri, A. Stutz, F. Suarez, T. Suomijarvi, A. D. Supanitsky, M. S. Sutherland, J. Swain, Z. Szadkowski, A. Tamashiro, A. Tamburro, T. Tarutina, O. Tascau, R. Tcaciuc, D. Tcherniakhovski, N. T. Thao, D. Thomas, R. Ticona, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, B. Tome, A. Tonachini, I. Torres, P. Trapani, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, V. Tuci, M. Tueros, E. Tusi, R. Ulrich, M. Unger, M. Urban, J. F. Valdes Galicia, I. Valino, L. Valore, A. M. van den Berg, J. R. Vazquez, R. A. Vazquez, D. Veberic, A. Velarde, T. Venters, V. Verzi, M. Videla, L. Villasenor, G. Vitali, S. Vorobiov, L. Voyvodic, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Warner, S. Westerhoff, B. J. Whelan, N. Wild, C. Wiebusch, G. Wieczorek, L. Wiencke, B. Wilczynska, H. Wilczynski, C. Wileman, M. G. Winnick, G. Worner, H. Wuac, B. Wundheiler, T. Yamamoto, P. Younk, G. Yuan, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, M. Ziolkowski, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, P., Abreu, M., Aglietta, E. 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D., Fraenkel, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, D., García Gámez, D., Garcia Pinto, A., Gascon, H., Gemmeke, K., Gesterling, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P., Gonçalve, D., Gonzalez, J. G., Gonzalez, B., Gookin, D., Góra, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, N., Griffith, M., Grigat, A. F., Grillo, Y., Guardincerri, Guarino, Fausto, G. P., Guede, A., Guzman, J. D., Hague, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, A., Horneffer, M., Hrabovský, T., Huege, A., Insolia, F., Ionita, A., Italiano, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. 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J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, C., Robledo, W., Rodrigues de Carvalho, G., Rodriguez, J., Rodriguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d???Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, F., Salamida, H., Salazar, G., Salina, F., Sánchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, A., ??mia??kowski, R., ??mída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, S., Stanic, J., Stapleton, J., Stasielak, M., Stephan, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, T., ??u??a, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, A., Tamashiro, A., Tapia, M., Tartare, O., Ta??c??u, C. G., Tavera Ruiz, R., Tcaciuc, D., Tegolo, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, D. K., Tiwari, W., Tkaczyk, C. J., Todero Peixoto, B., Tomé, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, Valore, Laura, A. M., van den Berg, E., Varela, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberi??, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Walz, D., Warner, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczy??ska, H., Wilczy??ski, M., Will, C., William, T., Winchen, M. G., Winnick, M., Wommer, B., Wundheiler, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, Yushkov, Alexey, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M., Zimbres Silva, M., Ziolkowski, J., Abraham, C., Aguirre, J., Alvarez Muniz, C., Aramo, S., Argir, K., Arisaka, F., Arneodo, T., Asch, A., Bacher, T., Backer, D., Badagnani, H. J. M., Barbosa, N., Barenthien, P., Bauleo, T., Beau, A., Belletoile, O., Blanch Biga, H., Blumer, M., Bohacova, E., Bollmann, H., Bolz, F., Bracci, N. G., Busca, D., Camin, W., Carvalho, J., Castro, J., Chye, P. D. J., Clark, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, B., Connolly, A., Cordero, U., Cotti, J. W., Cronin, J., Cuautle, F., Daudo, DE MITRI, Ivan, A., Della Selva, C., Delle Fratte, J. C., D’Olivo, D., Dornic, D., D’Urso, M. A., Du Vernoi, F., Ferrer, A., Filipcic, I., Fleck, R., Fonte, W., Fulgione, R. F., Gama rra, B., Garcıa, D., Garcıa Gamez, X., Garrido, H., Geenen, G., Gelmini, H., Gemmekeai, K., Gibb, J., Gitto, L. M., Goggin, M., Gomez Berisso, P. F., Gomez Vitale, P., Goncalve, M., Goncalves do Amaral, D., Gora, V., Grassi, J., Grygar, N., Guardone, C., Guerard, F., Guarino, R., Gumbsheimer, J., Gutierrez, V., Halenka, S., Hartmann, M. D., Healy, G., Hebrero, G., Hofman, J. R., Horandel, M., Horvat, M., Hrabovsky, H., Hucker, M., Hussain, M., Iarlori, M., Kaducak, T., Karova, B., Ke, E., Kempq, H., Kern, Kleifges, M., R., Knapik, A., Kopmann, A., Krieger, O., Kromer, A., Kusenko, B. L., Lago, M. S. A. B., Leao, J., Lee, M. A., Leiguide Oliveira, M., Leuthold, R., Lopez, A., Lopez Aguera, M., Malek, F., Marchetto, Marsella, Giovanni, Martello, Daniele, O., Martineau, O., Martınez Bravo, M., Mcewen, R. R., Mcneil, R., Meyhandan, G., Miele, M., Mostafa, M., Mucchi, M. . A., Muller, F., Nerling, C., Newman Holme, D., Newton, D., Nicotra, L., Nozka, J., Oehlschlager, F., Ortolani, B., Oßwald, S., Parlati, M., Patel, V., Pavlidou, K., Payet, J., Pekala, Perrone, Lorenzo, A., Pichel, T., Pinto, O., Pisanti, J., Pochon, J., Pouryamout, L. Prado J., R., G., Raia, A., Redondo, H. C., Rei, S., Reucroft, F. A. S., Rezendem, C., Riviere, M. D., Robert, J., Ro driguez Martino, M. D., Rodrıguez Fria, B., Rouille d’Orfeuil, F., Sanchez, M., Santander, G., Schleif, T., Schmidt, P., Schovanek, F., Schroeder, F., Schussler, D., Semikoz, G., Sequiero, B. B., Siffert, A., Smiakowski, R., Smıda, A. G. K., Smith, B. E., Smith, T., Suomijarvi, A., Tamburro, T., Tarutina, O., Tascau, D., Tcherniakhovski, R., Ticona, B., Tome, I., Torre, P., Trapani, V., Tuci, E., Tusi, J. F., Valdes Galicia, I., Valino, L., Valore, J. R., Vazquez, R. A., Vazquez, D., Veberic, A., Velarde, T., Venter, L., Villasenor, G., Vitali, S., Vorobiov, L., Voyvodic, N., Wild, C., Wiebusch, B., Wilczynska, H., Wilczynski, C., Wileman, G., Worner, H., Wuac, A., Yushkov, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), APC - Astrophysique des Hautes Energies (APC - AHE), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Abreu, P., Aglietta, M., Ahn, E., Albuquerque, I., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez Castillo, J., Alvarez-Muñiz, J., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Antičić, T., Anzalone, A., Aramo, C., Arganda, E., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Bäcker, T., Balzer, M., Barber, K., Barbosa, A., Bardenet, R., Barroso, S., Baughman, B., Bäuml, J., Beatty, J., Becker, B., Becker, K., Bellétoile, A., Bellido, J., Benzvi, S., Berat, C., Bertou, X., Biermann, P., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Cheng, S., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Clay, R., Coluccia, M., Conceião, R., Contreras, F., Cook, H., Cooper, M., Coppens, J., Cordier, A., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Dasso, S., Daumiller, K., Dawson, B., De Almeida, R., De Domenico, M., De Donato, C., De Jong, S., De La Vega, G., De Mello Junior, W., De Mello Neto, J., De Mitri, I., De Souza, V., De Vries, K., Decerprit, G., Del Peral, L., Del Río, M., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Diaz, J., Díaz Castro, M., Diep, P., Dobrigkeit, C., Docters, W., D'Olivo, J., Dong, P., Dorofeev, A., Dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Espadanal, J., Etchegoyen, A., Facal San Luis, P., Fajardo Tapia, I., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferguson, A., Ferrero, A., Fick, B., Filevich, A., Filipčič, A., Fliescher, S., Fracchiolla, C., Fraenkel, E., Fröhlich, U., Fuchs, B., Gaior, R., Gamarra, R., Gambetta, S., García, B., García Gámez, D., Garcia-Pinto, D., Gascon, A., Gemmeke, H., Gesterling, K., Ghia, P., Giaccari, U., Giller, M., Glass, H., Gold, M., Golup, G., Gomez Albarracin, F., Gómez Berisso, M., Gonalves, P., Gonzalez, D., Gonzalez, J., Gookin, B., Góra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Griffith, N., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Guzman, A., Hague, J., Hansen, P., Harari, D., Harmsma, S., Harton, J., Haungs, A., Hebbeker, T., Heck, D., Herve, A., Hojvat, C., Hollon, N., Holmes, V., Homola, P., Hörandel, J., Horneffer, A., Hrabovský, M., Huege, T., Insolia, A., Ionita, F., Italiano, A., Jarne, C., Jiraskova, S., Josebachuili, M., Kadija, K., Kampert, K., Karhan, P., Kasper, P., Kégl, B., Keilhauer, B., Keivani, A., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleinfeller, J., Knapp, J., Koang, D., Kotera, K., Krohm, N., Krömer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, J., Kunka, N., La Rosa, G., Lachaud, C., Lautridou, P., Leão, M., Lebrun, D., Lebrun, P., Leigui De Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lu, L., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Marin, J., Marin, V., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martin, L., Martinez, H., Martínez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Mertsch, P., Meurer, C., Mićanović, S., Micheletti, M., Miller, W., Miramonti, L., Molina-Bueno, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, E., Moreno, J., Morris, C., Mostafá, M., Moura, C., Mueller, S., Muller, M., Müller, G., Münchmeyer, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Nhung, P., Niemietz, L., Nierstenhoefer, N., Nitz, D., Nosek, D., Nožka, L., Nyklicek, M., Oehlschläger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parra, A., Parsons, R., Pastor, S., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Phan, N., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Querchfeld, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rivera, H., Rizi, V., Roberts, J., Robledo, C., Rodrigues De Carvalho, W., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodríguez-Frías, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouillé-D'Orfeuil, B., Roulet, E., Rovero, A., Rühle, C., Salamida, F., Salazar, H., Salina, G., Sánchez, F., Santo, C., Santos, E., Sarazin, F., Sarkar, B., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., 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Subjects
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Field (physics), Astronomy, ultra-high energy cosmic rays, Pierre Auger Observatory, arrival directions, FOS: Physical sciences, Cosmic ray, Astrophysics, 01 natural sciences, Cosmic Ray, Auger, Position (vector), 0103 physical sciences, FIELD, Pierre auger observatory, 010303 astronomy & astrophysics, Ultra-high energy cosmic ray, DETECTOR, Ciencias Exactas, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Arrival directions, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Isotropy, Física, Astronomy and Astrophysics, ASTROFÍSICA, Ultra-high energy cosmic rays, Magnetic field, Experimental High Energy Physics, Data analysis, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], RAIOS CÓSMICOS, Arrival direction, Ultra-High Energy Cosmic Ray
Abstract

We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or ‘multiplets’) which exhibit a correlation between arrival direc- tion and the inverse of the energy. These signatures are expected from sets of events coming from the same source after having been deflected by intervening coherent magnetic fields. The observation of several events from the same source would open the possibility to accurately reconstruct the position of the source and also measure the integral of the component of the magnetic field orthogonal to the trajectory of the cos- mic rays. We describe the largest multiplets found and compute the probability that they appeared by chance from an isotropic distribution. We find no statistically significant evidence for the presence of mul- tiplets arising from magnetic deflections in the present data., Facultad de Ciencias Exactas

Published
2012

31. Measurement of the proton-air cross-section at sqrt(s) = 57 TeV with the Pierre Auger Observatory

Author

P. Abreu, M. Aglietta, E. J. Ahn, I. F. M. Albuquerque, D. Allard, I. Allekotte, J. Allen, P. Allison, A. Almeda, J. Alvarez Castillo, J. Alvarez Muñiz, M. Ambrosio, A. Aminaei, L. Anchordoqui, S. Andringa, T. Antičić, C. Aramo, E. Arganda, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, M. Avenier, G. Avila, T. Bäcker, A. M. Badescu, M. Balzer, K. B. Barber, A. F. Barbosa, R. Bardenet, S. L. C. Barroso, B. Baughman f, J. Bäuml, J. J. Beatty, B. R. Becker, K. H. Becker, A. Bellétoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancus, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, K. S. Caballero Mora, L. Caramete, R. Caruso, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, S. H. Cheng, A. Chiavassa, J. A. Chinellato, J. Chirinos Diaz, J. Chudoba, R. W. Clay, R. Conceição, F. Contreras, H. Cook, M. J. Cooper, J. Coppens, A. Cordier, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. Cronin, A. Curutiu, S. Dagoret Campagne, R. Dallier, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, V. de Souza, K. D. de Vries, G. Decerprit g, L. del Peral, M. del Río, O. Deligny, H. Dembinski, N. Dhital, C. Di Giulio, M. L. Díaz Castro, P. N. Diep, C. Dobrigkeit, W. Docters, J. C. D'Olivo, P. N. Dong, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D'Urso, I. Dutan, J. Ebr, R. Engel, M. Erdmann, C. O. Escobar, J. Espadanal, A. Etchegoyen, P. Facal San Luis, I. Fajardo Tapia, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, A. P. Ferguson, A. Ferrero, B. Fick, A. Filevich, A. Filipčič, S. Fliescher, C. E. Fracchiolla, E. D. Fraenkel, O. Fratu, U. Fröhlich, B. Fuchs, R. Gaior, R. F. Gamarra, S. Gambetta, B. García, D. Garcia Gamez, D. Garcia Pinto, A. Gascon, H. Gemmeke, K. Gesterling, P. L. Ghia, U. Giaccari, M. Giller, H. Glass, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gómez Berisso, P. F. Gómez Vitale, P. Gonçalves, D. Gonzalez, J. G. Gonzalez, B. Gookin, D. Góra, A. Gorgi, P. Gouffon, S. R. Gozzini, E. Grashorn, S. Grebe, N. Griffith, M. Grigat, A. F. Grillo, Y. Guardincerri, F. Guarino, G. P. Guedes, A. Guzman, J. D. Hague, P. Hansen, D. Harari, S. Harmsma, T. A. Harrison, J. L. Harton, A. Haungs, T. Hebbeker, D. Heck, A. E. Herve, C. Hojvat, N. Hollon, V. C. Holmes, P. Homola, J. R. Hörandel, A. Horneffer, P. Horvath, M. Hrabovský, T. Huege, A. Insolia, F. Ionita, A. Italiano, C. Jarne, S. Jiraskova, M. Josebachuili, K. Kadija, K. H. Kampert, P. Karhan, P. Kasper, B. Kégl, B. Keilhauer, A. Keivani, J. L. Kelley, E. Kemp, R. M. Kieckhafer, H. O. Klages, M. Kleifges, J. Kleinfeller, J. Knapp, D. H. Koang, K. Kotera, N. Krohm, O. Krömer, D. Kruppke Hansen, F. Kuehn, D. Kuempel, J. K. Kulbartz, N. Kunka, G. La Rosa, C. Lachaud, R. Lauer, P. Lautridou, S. Le Coz, M. S. A. B. Leão, D. Lebrun, P. Lebrun, M. A. Leigui de Oliveira, A. Lemiere, A. Letessier Selvon, I. Lhenry Yvon, K. Link, R. López, A. Lopez Agüera, K. Louedec, J. Lozano Bahilo, L. Lu, A. Lucero, M. Ludwig, H. Lyberis, C. Macolino, S. Maldera, D. Mandat, P. Mantsch, A. G. Mariazzi, J. Marin, V. Marin, I. C. Maris, H. R. Marquez Falcon, L. Martin, H. Martinez, O. Martínez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurizio, P. O. Mazur, G. Medina Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, P. Mertsch, C. Meurer, S. Mićanović, M. I. Micheletti, W. Miller, L. Miramonti, L. Molina Bueno, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, E. Moreno, J. C. Moreno, C. Morris, M. Mostafá, C. A. Moura, S. Mueller, M. A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, A. Nelles, J. Neuser, P. T. Nhung, L. Niemietz, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nožka, M. Nyklicek, J. Oehlschläger, A. Olinto, M. Ortiz, N. Pacheco, D. Pakk Selmi Dei, M. Palatka, J. Pallotta, N. Palmieri, G. Parente, E. Parizot, A. Parra, R. D. Parsons, S. Pastor, T. Paul, M. Pech, J. Pękala, R. Pelayo, I. M. Pepe, R. Pesce, E. Petermann, S. Petrera, P. Petrinca, A. Petrolini, Y. Petrov, J. Petrovic, C. Pfendner, N. Phan, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, V. H. Ponce, M. Pontz, P. Privitera, M. Prouza, E. J. Quel, S. Querchfeld, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. Riggi, M. Risse, P. Ristori, H. Rivera, V. Rizi, J. Roberts, C. Robledo, W. Rodrigues de Carvalho, G. Rodriguez, J. Rodriguez Martino, J. Rodriguez Rojo, I. Rodriguez Cabo, M. D. Rodríguez Frías, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouillé d'Orfeuil, E. Roulet, A. C. Rovero, C. Rühle, A. Saftoiu, F. Salamida, H. Salazar, F. Salesa Greus, G. Salina, F. Sánchez, C. E. Santo, E. Santos, E. M. Santos, F. Sarazin, B. Sarkar, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovánek, F. Schröder, S. Schulte, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, M. Settimo, A. Shadkam, R. C. Shellard, I. Sidelnik, G. Sigl, H. H. Silva Lopez, O. Sima, A. Śmiałkowski, R. Šmída, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, Y. N. Srivastava, S. Stanic, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, T. Suomijärvi, A. D. Supanitsky, T. Šuša, M. S. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, A. Tamashiro, A. Tapia, M. Tartare, O. Taşcău, C. G. Tavera Ruiz, R. Tcaciuc, D. Tegolo, N. T. Thao, D. Thomas, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, T. Toma, B. Tomé, A. Tonachini, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, M. Tueros, R. Ulrich, M. Unger, M. Urban, J. F. Valdés Galicia, I. Valiño, L. Valore, A. M. van den Berg, E. Varela, B. Vargas Cárdenas, J. R. Vázquez, R. A. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Walz, D. Warner, A. A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, S. Westerhoff, B. J. Whelan, A. Widom, G. Wieczorek, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. Williams, T. Winchen, M. G. Winnick, M. Wommer, B. Wundheiler, T. Yamamoto a, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw h, A. Zepeda, Y. Zhu, M. Zimbres Silva, M. Ziolkowski, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, P., Abreu, M., Aglietta, E. J., Ahn, I. F. M., Albuquerque, D., Allard, I., Allekotte, J., Allen, P., Allison, A., Almeda, J., Alvarez Castillo, J., Alvarez Muñiz, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, T., Antičić, C., Aramo, E., Arganda, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, T., Bäcker, A. M., Badescu, M., Balzer, K. B., Barber, A. F., Barbosa, R., Bardenet, S. L. C., Barroso, B., Baughman f, J., Bäuml, J. J., Beatty, B. R., Becker, K. H., Becker, A., Bellétoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, K. S., Caballero Mora, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chirinos Diaz, J., Chudoba, R. W., Clay, Coluccia, MARIA RITA, R., Conceição, F., Contrera, H., Cook, M. J., Cooper, J., Coppen, A., Cordier, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., Dagoret Campagne, R., Dallier, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, G., Decerprit g, L., del Peral, M., del Río, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, M. L., Díaz Castro, P. N., Diep, C., Dobrigkeit, W., Docter, J. C., D'Olivo, P. N., Dong, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D'Urso, I., Dutan, J., Ebr, R., Engel, M., Erdmann, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, I., Fajardo Tapia, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, A., Ferrero, B., Fick, A., Filevich, A., Filipčič, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, O., Fratu, U., Fröhlich, B., Fuch, R., Gaior, R. F., Gamarra, S., Gambetta, B., García, D., Garcia Gamez, D., Garcia Pinto, A., Gascon, H., Gemmeke, K., Gesterling, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, D., Gonzalez, J. G., Gonzalez, B., Gookin, D., Góra, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, N., Griffith, M., Grigat, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, A., Guzman, J. D., Hague, P., Hansen, D., Harari, S., Harmsma, T. A., Harrison, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, N., Hollon, V. C., Holme, P., Homola, J. R., Hörandel, A., Horneffer, P., Horvath, M., Hrabovský, T., Huege, A., Insolia, F., Ionita, A., Italiano, C., Jarne, S., Jiraskova, M., Josebachuili, K., Kadija, K. H., Kampert, P., Karhan, P., Kasper, B., Kégl, B., Keilhauer, A., Keivani, J. L., Kelley, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, D. H., Koang, K., Kotera, N., Krohm, O., Krömer, D., Kruppke Hansen, F., Kuehn, D., Kuempel, J. K., Kulbartz, N., Kunka, G., La Rosa, C., Lachaud, R., Lauer, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Lemiere, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, J., Marin, V., Marin, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, P., Mertsch, C., Meurer, S., Mićanović, M. I., Micheletti, W., Miller, L., Miramonti, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, E., Moreno, J. C., Moreno, C., Morri, M., Mostafá, C. A., Moura, S., Mueller, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, P. T., Nhung, L., Niemietz, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nožka, M., Nyklicek, J., Oehlschläger, A., Olinto, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, A., Parra, R. D., Parson, S., Pastor, T., Paul, M., Pech, J., Pękala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, N., Phan, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, S., Querchfeld, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, H., Rivera, V., Rizi, J., Robert, C., Robledo, W., Rodrigues de Carvalho, G., Rodriguez, J., Rodriguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouillé d'Orfeuil, E., Roulet, A. C., Rovero, C., Rühle, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sánchez, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovánek, F., Schröder, S., Schulte, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, H. H., Silva Lopez, O., Sima, A., Śmiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, Y. 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G., Winnick, M., Wommer, B., Wundheiler, T., Yamamoto a, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw h, A., Zepeda, Y., Zhu, M., Zimbres Silva, and M., Ziolkowski

Subjects
proton cross-section, high-energy interaction, Cosmic Ray, extensive air-shower
Abstract

We report a measurement of the proton-air cross section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the depths of shower maxima observed with the Pierre Auger Observatory: systematic uncertainties are studied in detail. Analyzing the tail of the distribution of the shower maxima, a proton-air cross section of [505±22(stat)-36+28(syst)] mb is found.

Published
2012

32. Search for First Harmonic Modulation in the Right Ascension Distribution of Cosmic Rays Detected at the Pierre Auger Observatory

Author

J. Abraham, P. Abreu, M. Aglietta, C. Aguirre, E. J. Ahn, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Muniz, M. Ambrosio, L. Anchordoqui, S. Andringa, A. Anzalone, C. Aramo, E. Arganda, S. Argir, K. Arisaka, F. Arneodo, F. Arqueros, T. Asch, H. Asorey, P. Assis, J. Aublin, M. Ave, G. Avila, A. Bacher, T. Backer, D. Badagnani, K. B. Barber, A. F. Barbosa, H. J. M. Barbosa, N. Barenthien, S. L. C. Barroso, B. Baughman, P. Bauleo, J. J. Beatty, T. Beau, B. R. Becker, K. H. Becker, A. Belletoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, O. Blanch Bigas, F. Blanco, C. Bleve, H. Blumer, M. Bohacova, E. Bollmann, H. Bolz, C. Bonifazi, R. Bonino, N. Borodai, F. Bracci, J. Brack, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, N. G. Busca, K. S. Caballero Mora, D. Camin, L. Caramete, R. Caruso, W. Carvalho, A. Castellina, J. Castro, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, A. Chiavassa, J. A. Chinellato, A. Chou, J. Chudoba, J. Chye, P. D. J. Clark, R. W. Clay, E. Colombo, R. Conceicao, B. Connolly, F. Contreras, J. Coppens, A. Cordero, A. Cordier, U. Cotti, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. W. Cronin, J. Cuautle, A. Curutiu, S. Dagoret Campagne, R. Dallier, F. Daudo, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, V. de Souza, K. D. de Vries, G. Decerprit, L. del Peral, O. Deligny, A. Della Selva, C. Delle Fratte, H. Dembinski, C. Di Giulio, J. C. Diaz, P. N. Diep, C. Dobrigkeit, J. C. D’Olivo, P. N. Dong, D. Dornic, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D’Urso, I. Dutan, M. A. Du Vernois, R. Engel, M. Erdmann, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, F. Ferrer, A. Ferrero, B. Fick, A. Filevich, A. Filipcic, I. Fleck, S. Fliescher, R. Fonte, C. E. Fracchiolla, E. D. Fraenkel, W. Fulgione, R. F. Gama rra, S. Gambetta, B. Garcıa, D. Garcıa Gamez, D. Garcia Pinto, X. Garrido, H. Geenen, G. Gelmini, H. Gemmekeai, P. L. Ghia, U. Giaccari, K. Gibbs, M. Giller, J. Gitto, H. Glass, L. M. Goggin, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gomez Berisso, P. F. Gomez Vitale, P. Goncalves, M. Goncalves do Amaral, D. Gonzalez, J. G. Gonzalez, D. Gora, A. Gorgi, P. Gouffon, E. Grashorn, V. Grassi, S. Grebe, M. Grigat, A. F. Grillo, J. Grygar, Y. Guardincerri, N. Guardone, C. Guerard, F. Guarino, R. Gumbsheimer, G. P. Guedes, J. Gutierrez, J. D. Hague, V. Halenka, P. Hansen, D. Harari, S. Harmsma, S. Hartmann, J. L. Harton, A. Haungs, M. D. Healy, T. Hebbeker, G. Hebrero, D. Heck, C. Hojvat, V. C. Holmes, P. Homola, G. Hofman, J. R. Horandel, A. Horneffer, M. Horvat, M. Hrabovsky, H. Hucker, T. Huege, M. Hussain, M. Iarlori, A. Insolia, F. Ionita, A. Italiano, S. Jiraskova, M. Kaducak, K. H. Kampert, T. Karova, P. Kasper, B. Ke, B. Keilhauer, E. Kempq, H. Kern, R. M. Kieckhafer, H. O. Klages, M. . Kleifges, J. Kleinfeller, R. Knapik, J. Knapp, D. H. Koang, A. Kopmann, A. Krieger, O. Kromer, D. Kruppke Hansen, D. Kuempel, N. Kunka, A. Kusenko, G. La Rosa, C. Lachaud, B. L. Lago, P. Lautridou, M. S. A. B. Leao, D. Lebrun, P. Lebrun, J. Lee, M. A. Leiguide Oliveira, A. Lemiere, A. Letessier Selvon, M. Leuthold, I. Lhenry Yvon, R. Lopez, A. Lopez Aguera, K. Louedec, J. Lozano Bahilo, A. Lucero, H. Lyberis, M. C. Maccarone, C. Macolino, S. Maldera, M. Malek, D. Mandat, P. Mantsch, F. Marchetto, A. G. Mariazzi, I. C. Maris, H. R. Marquez Falcon, O. Martineau, O. Martınez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurizio, P. O. Mazur, M. McEwen, R. R. McNeil, G. Medina Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, R. Meyhandan, M. I. Micheletti, G. Miele, W. Miller, L. Miramonti, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, J. C. Moreno, C. Morris, M. Mostafa, C. A. Moura, M. Mucchi, S. Mueller, M. . A. Muller, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, F. Nerling, C. Newman Holmes, D. Newton, P. T. Nhung, D. Nicotra, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nozka, M. Nyklicek, J. Oehlschlager, A. Olinto, P. Oliva, V. M. Olmos Gilbaja, M. Ortiz, F. Ortolani, B. Oßwald, N. Pacheco, D. Pakk Selmi Dei, M. Palatka, J. Pallotta, G. Parente, E. Parizot, S. Parlati, S. Pastor, M. Patel, T. Paul, V. Pavlidou, K. Payet, M. Pech, J. Pekala, I. M. Pepe, R. Pesce, E. Petermann, S. Petrera, P. Petrinca, A. Petrolini, Y. Petrov, J. Petrovic, C. Pfendner, A. Pichel, R. Piegaia, T. Pierog, M. Pimenta, T. Pinto, V. Pirronello, O. Pisanti, M. Platino, J. Pochon, V. H. Ponce, M. Pontz, J. Pouryamout, L. Prado J.r., P. Privitera, M. Prouza, E. J. Quel, G. Raia, J. Rautenberg, O. Ravel, D. Ravignani, A. Redondo, H. C. Reis, S. Reucroft, B. Revenu, F. A. S. Rezendem, J. Ridky, S. Riggi, M. Risse, C. Riviere, V. Rizi, C. Robledo, M. D. Roberts, G. Rodriguez, J. Ro driguez Martino, J. Rodriguez Rojo, I. Rodriguez Cabo, M. D. Rodrıguez Frias, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouille d’Orfeuil, E. Roulet, A. C. Rovero, F. Salamida, H. Salazar, G. Salina, F. Sanchez, M. Santander, C. E. Santo, E. M. Santos, F. Sarazin, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, G. Schleif, A. Schmidt, F. Schmidt, T. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovanek, F. Schroeder, S. Schulte, F. Schussler, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, D. Semikoz, G. Sequieros, M. Settimo, R. C. Shellard, I. Sidelnik, B. B. Siffert, A. Smiakowski, R. Smıda, A. G. K. Smith, B. E. Smith, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, E. Strazzeri, A. Stutz, F. Suarez, T. Suomijarvi, A. D. Supanitsky, M. S. Sutherland, J. Swain, Z. Szadkowski, A. Tamashiro, A. Tamburro, T. Tarutina, O. Tascau, R. Tcaciuc, D. Tcherniakhovski, N. T. Thao, D. Thomas, R. Ticona, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, B. Tome, A. Tonachini, I. Torres, P. Trapani, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, V. Tuci, M. Tueros, E. Tusi, R. Ulrich, M. Unger, M. Urban, J. F. Valdes Galicia, I. Valino, L. Valore, A. M. van den Berg, J. R. Vazquez, R. A. Vazquez, D. Veberic, A. Velarde, T. Venters, V. Verzi, M. Videla, L. Villasenor, G. Vitali, S. Vorobiov, L. Voyvodic, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Warner, S. Westerhoff, B. J. Whelan, N. Wild, C. Wiebusch, G. Wieczorek, L. Wiencke, B. Wilczynska, H. Wilczynski, C. Wileman, M. G. Winnick, G. Worner, H. Wuac, B. Wundheiler, T. Yamamoto, P. Younk, G. Yuan, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, M. Ziolkowski, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, Guarino, Fausto, D'Urso, Domenico, Valore, Laura, M., Ambrosio, Aramo, Carla, The Pierre Auger, C. o. l. l. a. b. o. r. a. t. i. o. n. ., KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, Abreu, P, Aglietta, M, Ahn, E.J, Albuquerque, I.F.M, Allard, D, Allekotte, I, Allen, J, Allison, P, Alvarez Castillo, J, Alvarez-Muñiz, J, Ambrosio, M, Aminaei, A, Anchordoqui, L, Andringa, S, Antičić, T, Aramo, C, Arganda, E, Arqueros, F, Asorey, H, Assis, P, Aublin, J, Ave, M, Avenier, M, Avila, G, Bäcker, T, Balzer, M, Barber, K.B, Barbosa, A.F, Bardenet, R, Barroso, S.L.C, Baughman, B, Beatty, J.J, Becker, B.R, Becker, K.H, Bellido, J.A, Benzvi, S, Berat, C, Bertou, X, Biermann, P.L, Billoir, P, Blanco, F, Blanco, M, Bleve, C, Blümer, H, Boháčová, M, Boncioli, D, Bonifazi, C, Bonino, R, Borodai, N, Brack, J, Brogueira, P, Brown, W.C, Bruijn, R, Buchholz, P, Bueno, A, Burton, R.E, Caballero-Mora, K.S, Caramete, L, Caruso, R, Castellina, A, Cataldi, G, Cazon, L, Cester, R, Chauvin, J, Chiavassa, A, Chinellato, J.A, Chou, A, Chudoba, J, Clay, R.W, Coluccia, M.R, Conceião, R, Contreras, F, Cook, H, Cooper, M.J, Coppens, J, Cordier, A, Cotti, U, Coutu, S, Covault, C.E, Creusot, A, Criss, A, Cronin, J, Curutiu, A, Dagoret-Campagne, S, Dallier, R, Dasso, S, Daumiller, K, Dawson, B.R, De Almeida, R.M, De Domenico, M, De Donato, C, De Jong, S.J, De La Vega, G, De Mello Jr, W.J.M, De Mello Neto, J.R.T, De Mitri, I, De Souza, V, De Vries, K.D, Decerprit, G, Del Peral, L, Deligny, O, Dembinski, H, Denkiewicz, A, Di Giulio, C, Diaz, J.C, Díaz Castro, M.L, Diep, P.N, Dobrigkeit, C, D'Olivo, J.C, Dong, P.N, Dorofeev, A, Dos Anjos, J.C, Dova, M.T, D'Urso, D, Dutan, I, Ebr, J, Engel, R, Erdmann, M, Escobar, C.O, Etchegoyen, A, Facal San Luis, P, Falcke, H, Farrar, G, Fauth, A.C, Fazzini, N, Ferguson, A.P, Ferrero, A, Fick, B, Filevich, A, Filipčič, A, Fliescher, S, Fracchiolla, C.E, Fraenkel, E.D, Fröhlich, U, Fuchs, B, Gamarra, R.F, Gambetta, S, García, B, García Gámez, D, Garcia-Pinto, D, Gascon, A, Gemmeke, H, Gesterling, K, Ghia, P.L, Giaccari, U, Giller, M, Glass, H, Gold, M.S, Golup, G, Gomez Albarracin, F, Gómez Berisso, M, Gonalves, P, Gonzalez, D, Gonzalez, J.G, Gookin, B, Góra, D, Gorgi, A, Gouffon, P, Gozzini, S.R, Grashorn, E, Grebe, S, Griffith, N, Grigat, M, Grillo, A.F, Guardincerri, Y, Guarino, F, Guedes, G.P, Hague, J.D, Hansen, P, Harari, D, Harmsma, S, Harton, J.L, Haungs, A, Hebbeker, T, Heck, D, Herve, A.E, Hojvat, C, Holmes, V.C, Homola, P, Hörandel, J.R, Horneffer, A, Hrabovský, M, Huege, T, Insolia, A, Ionita, F, Italiano, A, Jiraskova, S, Kadija, K, Kampert, K.H, Karhan, P, Karova, T, Kasper, P, Kégl, B, Keilhauer, B, Keivani, A, Kelley, J.L, Kemp, E, Kieckhafer, R.M, Klages, H.O, Kleifges, M, Kleinfeller, J, Knapp, J, Koang, D.-H, Kotera, K, Krohm, N, Krömer, O, Kruppke-Hansen, D, Kuehn, F, Kuempel, D, Kulbartz, J.K, Kunka, N, La Rosa, G, Lachaud, C, Lautridou, P, Leão, M.S.A.B, Lebrun, D, Lebrun, P, Leigui De Oliveira, M.A, Lemiere, A, Letessier-Selvon, A, Lhenry-Yvon, I, Link, K, López, R, Lopez Agüera, A, Louedec, K, Lozano Bahilo, J, Lucero, A, Ludwig, M, Lyberis, H, MacOlino, C, Maldera, S, Mandat, D, Mantsch, P, Mariazzi, A.G, Marin, V, Maris, I.C, Marquez Falcon, H.R, Marsella, G, Martello, D, Martin, L, Martínez Bravo, O, Mathes, H.J, Matthews, J, Matthews, J.A.J, Matthiae, G, Maurizio, D, Mazur, P.O, Medina-Tanco, G, Melissas, M, Melo, D, Menichetti, E, Menshikov, A, Mertsch, P, Meurer, C, Mićanović, S, Micheletti, M.I, Miller, W, Miramonti, L, Mollerach, S, Monasor, M, Monnier Ragaigne, D, Montanet, F, Morales, B, Morello, C, Moreno, E, Moreno, J.C, Morris, C, Mostafá, M, Moura, C.A, Mueller, S, Muller, M.A, Müller, G, Münchmeyer, M, Mussa, R, Navarra, G, Navarro, J.L, Navas, S, Necesal, P, Nellen, L, Nelles, A, Nhung, P.T, Nierstenhoefer, N, Nitz, D, Nosek, D, Nožka, L, Nyklicek, M, Oehlschläger, J, Olinto, A, Oliva, P, Olmos-Gilbaja, V.M, Ortiz, M, Pacheco, N, Pakk Selmi-Dei, D, Palatka, M, Pallotta, J, Palmieri, N, Parente, G, Parizot, E, Parra, A, Parrisius, J, Parsons, R.D, Pastor, S, Paul, T, Pech, M, Pȩkala, J, Pelayo, R, Pepe, I.M, Perrone, L, Pesce, R, Petermann, E, Petrera, S, Petrinca, P, Petrolini, A, Petrov, Y, Petrovic, J, Pfendner, C, Phan, N, Piegaia, R, Pierog, T, Pieroni, P, Pimenta, M, Pirronello, V, Platino, M, Ponce, V.H, Pontz, M, Privitera, P, Prouza, M, Quel, E.J, Rautenberg, J, Ravel, O, Ravignani, D, Revenu, B, Ridky, J, Risse, M, Ristori, P, Rivera, H, Rivire, C, Rizi, V, Robledo, C, Rodrigues De Carvalho, W, Rodriguez, G, Rodriguez Martino, J, Rodriguez Rojo, J, Rodriguez-Cabo, I, Rodríguez-Frías, M.D, Ros, G, Rosado, J, Rossler, T, Roth, M, Rouillé-D'Orfeuil, B, Roulet, E, Rovero, A.C, Rühle, C, Salamida, F, Salazar, H, Salina, G, Sánchez, F, Santander, M, Santo, C.E, Santos, E, Santos, E.M, Sarazin, F, Sarkar, S, Sato, R, Scharf, N, Scherini, V, Schieler, H, Schiffer, P, Schmidt, A, Schmidt, F, Schmidt, T, Scholten, O, Schoorlemmer, H, Schovancova, J, Schovánek, P, Schroeder, F, Schulte, S, Schuster, D, Sciutto, S.J, Scuderi, M, Segreto, A, Semikoz, D, Settimo, M, Shadkam, A, Shellard, R.C, Sidelnik, I, Sigl, G, Śmiałkowski, A, Šmída, R, Snow, G.R, Sommers, P, Sorokin, J, Spinka, H, Squartini, R, Stapleton, J, Stasielak, J, Stephan, M, Stutz, A, Suarez, F, Suomijärvi, T, Supanitsky, A.D, Šuša, T, Sutherland, M.S, Swain, J, Szadkowski, Z, Szuba, M, Tamashiro, A, Tapia, A, Tacu, O, Tcaciuc, R, Tegolo, D, Thao, N.T, Thomas, D, Tiffenberg, J, Timmermans, C, Tiwari, D.K, Tkaczyk, W, Todero Peixoto, C.J, Tomé, B, Tonachini, A, Travnicek, P, Tridapalli, D.B, Tristram, G, Trovato, E, Tueros, M, Ulrich, R, Unger, M, Urban, M, Valdés Galicia, J.F, Valiño, I, Valore, L, Van Den Berg, A.M, Vargas Cárdenas, B, Vázquez, J.R, Vázquez, R.A, Veberič, D, Verzi, V, Videla, M, Villaseñor, L, Wahlberg, H, Wahrlich, P, Wainberg, O, Warner, D, Watson, A.A, Weber, M, Weidenhaupt, K, Weindl, A, Westerhoff, S, Whelan, B.J, Wieczorek, G, Wiencke, L, Wilczyńska, B, Wilczyński, H, Will, M, Williams, C, Winchen, T, Winders, L, Winnick, M.G, Wommer, M, Wundheiler, B, Yamamoto, T, Younk, P, Yuan, G, Zamorano, B, Zas, E, Zavrtanik, D, Zavrtanik, M, Zaw, I, Zepeda, A, Ziolkowski, M., J., Abraham, P., Abreu, M., Aglietta, C., Aguirre, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, E., Arganda, S., Argir, K., Arisaka, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, A., Bacher, T., Backer, D., Badagnani, K. B., Barber, A. F., Barbosa, H. J. M., Barbosa, N., Barenthien, S. L. C., Barroso, B., Baughman, P., Bauleo, J. J., Beatty, T., Beau, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, C., Bleve, H., Blumer, M., Bohacova, E., Bollmann, H., Bolz, C., Bonifazi, R., Bonino, N., Borodai, F., Bracci, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, D., Camin, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, J., Castro, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, J., Chye, P. D. J., Clark, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, B., Connolly, F., Contrera, J., Coppen, A., Cordero, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J. W., Cronin, J., Cuautle, A., Curutiu, S., Dagoret Campagne, R., Dallier, F., Daudo, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, P. N., Diep, C., Dobrigkeit, J. C., D’Olivo, P. N., Dong, D., Dornic, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D’Urso, I., Dutan, M. A., Du Vernoi, R., Engel, M., Erdmann, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, F., Ferrer, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, R., Fonte, C. E., Fracchiolla, E. D., Fraenkel, W., Fulgione, R. F., Gama rra, S., Gambetta, B., Garcıa, D., Garcıa Gamez, D., Garcia Pinto, X., Garrido, H., Geenen, G., Gelmini, H., Gemmekeai, P. L., Ghia, U., Giaccari, K., Gibb, M., Giller, J., Gitto, H., Gla, L. M., Goggin, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gomez Berisso, P. F., Gomez Vitale, P., Goncalve, M., Goncalves do Amaral, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, E., Grashorn, V., Grassi, S., Grebe, M., Grigat, A. F., Grillo, J., Grygar, Y., Guardincerri, N., Guardone, C., Guerard, F., Guarino, R., Gumbsheimer, G. P., Guede, J., Gutierrez, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, A., Haung, M. D., Healy, T., Hebbeker, G., Hebrero, D., Heck, C., Hojvat, V. C., Holme, P., Homola, G., Hofman, J. R., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, H., Hucker, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Ke, B., Keilhauer, E., Kempq, H., Kern, R. M., Kieckhafer, H. O., Klage, Kleifges, M., J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Kopmann, A., Krieger, O., Kromer, D., Kruppke Hansen, D., Kuempel, N., Kunka, A., Kusenko, G., La Rosa, C., Lachaud, B. L., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguide Oliveira, A., Lemiere, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, R., Lopez, A., Lopez Aguera, K., Louedec, J., Lozano Bahilo, A., Lucero, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, M., Malek, D., Mandat, P., Mantsch, F., Marchetto, A. G., Mariazzi, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, O., Martineau, O., Martınez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewen, R. R., Mcneil, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, J. C., Moreno, C., Morri, M., Mostafa, C. A., Moura, M., Mucchi, S., Mueller, M. . A., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, F., Nerling, C., Newman Holme, D., Newton, P. T., Nhung, D., Nicotra, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V. M., Olmos Gilbaja, M., Ortiz, F., Ortolani, B., Oßwald, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, S., Pastor, M., Patel, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, A., Pichel, R., Piegaia, T., Pierog, M., Pimenta, T., Pinto, V., Pirronello, O., Pisanti, M., Platino, J., Pochon, V. H., Ponce, M., Pontz, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, G., Raia, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, H. C., Rei, S., Reucroft, B., Revenu, F. A. S., Rezendem, J., Ridky, S., Riggi, M., Risse, C., Riviere, V., Rizi, C., Robledo, M. D., Robert, G., Rodriguez, J., Ro driguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodrıguez Fria, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouille d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, G., Schleif, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, G., Sequiero, M., Settimo, R. C., Shellard, I., Sidelnik, B. B., Siffert, A., Smiakowski, R., Smıda, A. G. K., Smith, B. E., Smith, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, T., Tarutina, O., Tascau, R., Tcaciuc, D., Tcherniakhovski, N. T., Thao, D., Thoma, R., Ticona, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, B., Tome, A., Tonachini, I., Torre, P., Trapani, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, V., Tuci, M., Tuero, E., Tusi, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, J. R., Vazquez, R. A., Vazquez, D., Veberic, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, G., Vitali, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, S., Westerhoff, B. J., Whelan, N., Wild, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, G., Worner, H., Wuac, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M., Ziolkowski, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik

Subjects
Large scale anisotripies, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Auger Experiment, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Phase (waves), FOS: Physical sciences, Cosmic ray, Astrophysics, anisotropy, SURFACE DETECTOR, 01 natural sciences, Cosmic Ray, Auger, Large scale anisotropies, Observatory, Large scale anisotropie, 0103 physical sciences, 010303 astronomy & astrophysics, Ultra-high energy cosmic ray, Ciencias Exactas, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Pierre Auger Observatory, FÍSICA DE PARTÍCULAS, Ultra High Energy Cosmic Rays, 010308 nuclear & particles physics, ORIGIN, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, Física, Astronomy and Astrophysics, Ultra-high energy cosmic rays, ENERGY-SPECTRUM, Radiación cósmica, Anisotropía, Amplitude, Harmonics, Experimental High Energy Physics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, ARRAY, Física nuclear, Right ascension, Astrophysics - High Energy Astrophysical Phenomena
Abstract

We present the results of searches for dipolar-type anisotropies in different energy ranges above 2.5 × 1017 eV with the surface detector array of the Pierre Auger Observatory, reporting on both the phase and the amplitude measurements of the first harmonic modulation in the right-ascension distribution. Upper limits on the amplitudes are obtained, which provide the most stringent bounds at present, being below 2% at 99% C.L. for EeV energies. We also compare our results to those of previous experiments as well as with some theoretical expectations., We are very grateful to the following agencies and organizations for financial support: Comisión Nacional de Energía Atómica, Fundación Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Ministério de Ciência e Tecnologia (MCT), Brazil; AVCR, AV0Z10100502 and AV0Z10100522, GAAV, KJB300100801 and KJB100100904, MSMT-CRLA08016, LC527, 1M06002, and MSM0021620859, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Régional Ile-de-France, Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS), Département Sciences de l’Univers (SDU-INSU/CNRS), France; Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden – Württemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium für Wissenschaft und Forschung,Nordrhein-Westfalen, Ministerium für Wissenschaft, Forschung und Kunst, Baden-Württemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Istituto Nazionale di Astrofisica (INAF), Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR), Gran Sasso Center for Astroparticle Physics (CFA), Italy; Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. 1 P03 D 014 30 and N N202 207238, Poland; Fundação para a Ciência e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejería de Educación de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovación and Consolider-Ingenio 2010 (CPAN), Generalitat Valenciana, Junta de Andalucía, Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DE-AC02-07CH11359, DE-FR02-04ER41300, National Science Foundation, Grant No. 0450696, The Grainger Foundation, USA; ALFA-EC/ HELEN, European Union 6th Framework Program, Grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No. PIEF-GA-2008-220240, and UNESCO.

Published
2011

33. Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory

Author

J. Abraham, P. Abreu, M. Aglietta, C. Aguirre, E. J. Ahn, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Muniz, M. Ambrosio, L. Anchordoqui, S. Andringa, A. Anzalone, C. Aramo, E. Arganda, S. Argir, K. Arisaka, F. Arneodo, F. Arqueros, T. Asch, H. Asorey, P. Assis, J. Aublin, M. Ave, G. Avila, A. Bacher, T. Backer, D. Badagnani, K. B. Barber, A. F. Barbosa, H. J. M. Barbosa, N. Barenthien, S. L. C. Barroso, B. Baughman, P. Bauleo, J. J. Beatty, T. Beau, B. R. Becker, K. H. Becker, A. Belletoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, O. Blanch Bigas, F. Blanco, C. Bleve, H. Blumer, M. Bohacova, E. Bollmann, H. Bolz, C. Bonifazi, R. Bonino, N. Borodai, F. Bracci, J. Brack, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, N. G. Busca, K. S. Caballero Mora, D. Camin, L. Caramete, R. Caruso, W. Carvalho, A. Castellina, J. Castro, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, A. Chiavassa, J. A. Chinellato, A. Chou, J. Chudoba, J. Chye, P. D. J. Clark, R. W. Clay, E. Colombo, R. Conceicao, B. Connolly, F. Contreras, J. Coppens, A. Cordero, A. Cordier, U. Cotti, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. W. Cronin, J. Cuautle, A. Curutiu, S. Dagoret Campagne, R. Dallier, F. Daudo, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, V. de Souza, K. D. de Vries, G. Decerprit, L. del Peral, O. Deligny, A. Della Selva, C. Delle Fratte, H. Dembinski, C. Di Giulio, J. C. Diaz, P. N. Diep, C. Dobrigkeit, J. C. D’Olivo, P. N. Dong, D. Dornic, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D’Urso, I. Dutan, M. A. Du Vernois, R. Engel, M. Erdmann, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, F. Ferrer, A. Ferrero, B. Fick, A. Filevich, A. Filipcic, I. Fleck, S. Fliescher, R. Fonte, C. E. Fracchiolla, E. D. Fraenkel, W. Fulgione, R. F. Gama rra, S. Gambetta, B. Garcıa, D. Garcıa Gamez, D. Garcia Pinto, X. Garrido, H. Geenen, G. Gelmini, H. Gemmekeai, P. L. Ghia, U. Giaccari, K. Gibbs, M. Giller, J. Gitto, H. Glass, L. M. Goggin, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gomez Berisso, P. F. Gomez Vitale, P. Goncalves, M. Goncalves do Amaral, D. Gonzalez, J. G. Gonzalez, D. Gora, A. Gorgi, P. Gouffon, E. Grashorn, V. Grassi, S. Grebe, M. Grigat, A. F. Grillo, J. Grygar, Y. Guardincerri, N. Guardone, C. Guerard, F. Guarino, R. Gumbsheimer, G. P. Guedes, J. Gutierrez, J. D. Hague, V. Halenka, P. Hansen, D. Harari, S. Harmsma, S. Hartmann, J. L. Harton, A. Haungs, M. D. Healy, T. Hebbeker, G. Hebrero, D. Heck, C. Hojvat, V. C. Holmes, P. Homola, G. Hofman, J. R. Horandel, A. Horneffer, M. Horvat, M. Hrabovsky, H. Hucker, T. Huege, M. Hussain, M. Iarlori, A. Insolia, F. Ionita, A. Italiano, S. Jiraskova, M. Kaducak, K. H. Kampert, T. Karova, P. Kasper, B. Ke, B. Keilhauer, E. Kempq, H. Kern, R. M. Kieckhafer, H. O. Klages, M. . Kleifges, J. Kleinfeller, R. Knapik, J. Knapp, D. H. Koang, A. Kopmann, A. Krieger, O. Kromer, D. Kruppke Hansen, D. Kuempel, N. Kunka, A. Kusenko, G. La Rosa, C. Lachaud, B. L. Lago, P. Lautridou, M. S. A. B. Leao, D. Lebrun, P. Lebrun, J. Lee, M. A. Leiguide Oliveira, A. Lemiere, A. Letessier Selvon, M. Leuthold, I. Lhenry Yvon, R. Lopez, A. Lopez Aguera, K. Louedec, J. Lozano Bahilo, A. Lucero, H. Lyberis, M. C. Maccarone, C. Macolino, S. Maldera, M. Malek, D. Mandat, P. Mantsch, F. Marchetto, A. G. Mariazzi, I. C. Maris, H. R. Marquez Falcon, O. Martineau, O. Martınez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurizio, P. O. Mazur, M. McEwen, R. R. McNeil, G. Medina Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, R. Meyhandan, M. I. Micheletti, G. Miele, W. Miller, L. Miramonti, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, J. C. Moreno, C. Morris, M. Mostafa, C. A. Moura, M. Mucchi, S. Mueller, M. . A. Muller, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, F. Nerling, C. Newman Holmes, D. Newton, P. T. Nhung, D. Nicotra, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nozka, M. Nyklicek, J. Oehlschlager, A. Olinto, P. Oliva, V. M. Olmos Gilbaja, M. Ortiz, F. Ortolani, B. Oßwald, N. Pacheco, D. Pakk Selmi Dei, M. Palatka, J. Pallotta, G. Parente, E. Parizot, S. Parlati, S. Pastor, M. Patel, T. Paul, V. Pavlidou, K. Payet, M. Pech, J. Pekala, I. M. Pepe, R. Pesce, E. Petermann, S. Petrera, P. Petrinca, A. Petrolini, Y. Petrov, J. Petrovic, C. Pfendner, A. Pichel, R. Piegaia, T. Pierog, M. Pimenta, T. Pinto, V. Pirronello, O. Pisanti, M. Platino, J. Pochon, V. H. Ponce, M. Pontz, J. Pouryamout, L. Prado J.r., P. Privitera, M. Prouza, E. J. Quel, G. Raia, J. Rautenberg, O. Ravel, D. Ravignani, A. Redondo, H. C. Reis, S. Reucroft, B. Revenu, F. A. S. Rezendem, J. Ridky, S. Riggi, M. Risse, C. Riviere, V. Rizi, C. Robledo, M. D. Roberts, G. Rodriguez, J. Ro driguez Martino, J. Rodriguez Rojo, I. Rodriguez Cabo, M. D. Rodrıguez Frias, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouille d’Orfeuil, E. Roulet, A. C. Rovero, F. Salamida, H. Salazar, G. Salina, F. Sanchez, M. Santander, C. E. Santo, E. M. Santos, F. Sarazin, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, G. Schleif, A. Schmidt, F. Schmidt, T. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovanek, F. Schroeder, S. Schulte, F. Schussler, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, D. Semikoz, G. Sequieros, M. Settimo, R. C. Shellard, I. Sidelnik, B. B. Siffert, A. Smiakowski, R. Smıda, A. G. K. Smith, B. E. Smith, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, E. Strazzeri, A. Stutz, F. Suarez, T. Suomijarvi, A. D. Supanitsky, M. S. Sutherland, J. Swain, Z. Szadkowski, A. Tamashiro, A. Tamburro, T. Tarutina, O. Tascau, R. Tcaciuc, D. Tcherniakhovski, N. T. Thao, D. Thomas, R. Ticona, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, B. Tome, A. Tonachini, I. Torres, P. Trapani, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, V. Tuci, M. Tueros, E. Tusi, R. Ulrich, M. Unger, M. Urban, J. F. Valdes Galicia, I. Valino, L. Valore, A. M. van den Berg, J. R. Vazquez, R. A. Vazquez, D. Veberic, A. Velarde, T. Venters, V. Verzi, M. Videla, L. Villasenor, G. Vitali, S. Vorobiov, L. Voyvodic, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Warner, S. Westerhoff, B. J. Whelan, N. Wild, C. Wiebusch, G. Wieczorek, L. Wiencke, B. Wilczynska, H. Wilczynski, C. Wileman, M. G. Winnick, G. Worner, H. Wuac, B. Wundheiler, T. Yamamoto, P. Younk, G. Yuan, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, M. Ziolkowski, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, Guarino, Fausto, Valore, Laura, D'Urso, Domenico, Yushkov, Alexey, Aramo, Carla, The Pierre Auger, Collaboration, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, J., Abraham, P., Abreu, M., Aglietta, C., Aguirre, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, E., Arganda, S., Argir, K., Arisaka, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, A., Bacher, T., Backer, D., Badagnani, K. B., Barber, A. F., Barbosa, H. J. M., Barbosa, N., Barenthien, S. L. C., Barroso, B., Baughman, P., Bauleo, J. J., Beatty, T., Beau, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, C., Bleve, H., Blumer, M., Bohacova, E., Bollmann, H., Bolz, C., Bonifazi, R., Bonino, N., Borodai, F., Bracci, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, D., Camin, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, J., Castro, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, J., Chye, P. D. J., Clark, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, B., Connolly, F., Contrera, J., Coppen, A., Cordero, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J. W., Cronin, J., Cuautle, A., Curutiu, S., Dagoret Campagne, R., Dallier, F., Daudo, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, P. N., Diep, C., Dobrigkeit, J. C., D’Olivo, P. N., Dong, D., Dornic, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D’Urso, I., Dutan, M. A., Du Vernoi, R., Engel, M., Erdmann, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, F., Ferrer, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, R., Fonte, C. E., Fracchiolla, E. D., Fraenkel, W., Fulgione, R. F., Gama rra, S., Gambetta, B., Garcıa, D., Garcıa Gamez, D., Garcia Pinto, X., Garrido, H., Geenen, G., Gelmini, H., Gemmekeai, P. L., Ghia, U., Giaccari, K., Gibb, M., Giller, J., Gitto, H., Gla, L. M., Goggin, M. S., Gold, G., Golup, F., Gomez Albarracin, M., Gomez Berisso, P. F., Gomez Vitale, P., Goncalve, M., Goncalves do Amaral, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, E., Grashorn, V., Grassi, S., Grebe, M., Grigat, A. F., Grillo, J., Grygar, Y., Guardincerri, N., Guardone, C., Guerard, F., Guarino, R., Gumbsheimer, G. P., Guede, J., Gutierrez, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, S., Hartmann, J. L., Harton, A., Haung, M. D., Healy, T., Hebbeker, G., Hebrero, D., Heck, C., Hojvat, V. C., Holme, P., Homola, G., Hofman, J. R., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, H., Hucker, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Ke, B., Keilhauer, E., Kempq, H., Kern, R. M., Kieckhafer, H. O., Klage, Kleifges, M., J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Kopmann, A., Krieger, O., Kromer, D., Kruppke Hansen, D., Kuempel, N., Kunka, A., Kusenko, G., La Rosa, C., Lachaud, B. L., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguide Oliveira, A., Lemiere, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, R., Lopez, A., Lopez Aguera, K., Louedec, J., Lozano Bahilo, A., Lucero, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, M., Malek, D., Mandat, P., Mantsch, F., Marchetto, A. G., Mariazzi, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, O., Martineau, O., Martınez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewen, R. R., Mcneil, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, J. C., Moreno, C., Morri, M., Mostafa, C. A., Moura, M., Mucchi, S., Mueller, M. . A., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, F., Nerling, C., Newman Holme, D., Newton, P. T., Nhung, D., Nicotra, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V. M., Olmos Gilbaja, M., Ortiz, F., Ortolani, B., Oßwald, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, G., Parente, E., Parizot, S., Parlati, S., Pastor, M., Patel, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, A., Pichel, R., Piegaia, T., Pierog, M., Pimenta, T., Pinto, V., Pirronello, O., Pisanti, M., Platino, J., Pochon, V. H., Ponce, M., Pontz, J., Pouryamout, L. Prado J., R., P., Privitera, M., Prouza, E. J., Quel, G., Raia, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, H. C., Rei, S., Reucroft, B., Revenu, F. A. S., Rezendem, J., Ridky, S., Riggi, M., Risse, C., Riviere, V., Rizi, C., Robledo, M. D., Robert, G., Rodriguez, J., Ro driguez Martino, J., Rodriguez Rojo, I., Rodriguez Cabo, M. D., Rodrıguez Fria, G., Ro, J., Rosado, T., Rossler, M., Roth, B., Rouille d’Orfeuil, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, G., Schleif, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, G., Sequiero, M., Settimo, R. C., Shellard, I., Sidelnik, B. B., Siffert, A., Smiakowski, R., Smıda, A. G. K., Smith, B. E., Smith, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, T., Tarutina, O., Tascau, R., Tcaciuc, D., Tcherniakhovski, N. T., Thao, D., Thoma, R., Ticona, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Todero Peixoto, B., Tome, A., Tonachini, I., Torre, P., Trapani, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, V., Tuci, M., Tuero, E., Tusi, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, J. R., Vazquez, R. A., Vazquez, D., Veberic, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, G., Vitali, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, S., Westerhoff, B. J., Whelan, N., Wild, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, G., Worner, H., Wuac, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M., Ziolkowski, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Abreu, P., Aglietta, M., Ahn, E., Albuquerque, I., Allard, D., Allekotte, I., Allen, J., Allison, P., Alvarez Castillo, J., Alvarez-Muñiz, J., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Antičić, T., Anzalone, A., Aramo, C., Arganda, E., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Bäcker, T., Balzer, M., Barber, K., Barbosa, A., Bardenet, R., Barroso, S., Baughman, B., Bäuml, J., Beatty, J., Becker, B., Becker, K., Bellétoile, A., Bellido, J., Benzvi, S., Berat, C., Bertou, X., Biermann, P., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cataldi, G., Cazon, L., Cester, R., Chauvin, J., Cheng, S., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Clay, R., Coluccia, M., Conceição, R., Contreras, F., Cook, H., Cooper, M., Coppens, J., Cordier, A., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Dasso, S., Daumiller, K., Dawson, B., De Almeida, R., De Domenico, M., De Donato, C., De Jong, S., De La Vega, G., De Mello Junior, W., De Mello Neto, J., De Mitri, I., De Souza, V., De Vries, K., Decerprit, G., Del Peral, L., Del Río, M., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Diaz, J., Díaz Castro, M., Diep, P., Dobrigkeit, C., Docters, W., D'Olivo, J., Dong, P., Dorofeev, A., Dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Espadanal, J., Etchegoyen, A., Facal San Luis, P., Fajardo Tapia, I., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferguson, A., Ferrero, A., Fick, B., Filevich, A., Filipčič, A., Fliescher, S., Fracchiolla, C., Fraenkel, E., Fröhlich, U., Fuchs, B., Gaior, R., Gamarra, R., Gambetta, S., García, B., García Gámez, D., Garcia-Pinto, D., Gascon, A., Gemmeke, H., Gesterling, K., Ghia, P., Giaccari, U., Giller, M., Glass, H., Gold, M., Golup, G., Gomez Albarracin, F., Gómez Berisso, M., Gonçalves, P., Gonzalez, D., Gonzalez, J., Gookin, B., Góra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Griffith, N., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Guzman, A., Hague, J., Hansen, P., Harari, D., Harmsma, S., Harrison, T., Harton, J., Haungs, A., Hebbeker, T., Heck, D., Herve, A., Hojvat, C., Hollon, N., Holmes, V., Homola, P., Hörandel, J., Horneffer, A., Horvath, P., Hrabovský, M., Huege, T., Insolia, A., Ionita, F., Italiano, A., Jarne, C., Jiraskova, S., Josebachuili, M., Kadija, K., Kampert, K., Karhan, P., Kasper, P., Kégl, B., Keilhauer, B., Keivani, A., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleinfeller, J., Knapp, J., Koang, D., Kotera, K., Krohm, N., Krömer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, J., Kunka, N., Rosa, G., Lachaud, C., Lautridou, P., Leão, M., Lebrun, D., Lebrun, P., Leigui De Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lu, L., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Marin, J., Marin, V., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martin, L., Martinez, H., Martínez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Mertsch, P., Meurer, C., Mićanović, S., Micheletti, M., Miller, W., Miramonti, L., Molina-Bueno, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, E., Moreno, J., Morris, C., Mostafá, M., Moura, C., Mueller, S., Muller, M., Müller, G., Münchmeyer, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Newton, D., Nhung, P., Niemietz, L., Nierstenhoefer, N., Nitz, D., Nosek, D., Noka, L., Nyklicek, M., Oehlschläger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parra, A., Parsons, R., Pastor, S., Paul, T., Pech, M., Pekala, J., Pelayo, R., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Phan, N., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Querchfeld, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rivera, H., Rizi, V., Roberts, J., Robledo, C., Rodrigues De Carvalho, W., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodríguez-Frías, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouillé-D'Orfeuil, B., Roulet, E., Rovero, A., Rühle, C., Salamida, F., Salazar, H., Salesa Greus, F., Salina, G., Sánchez, F., Santo, C., Santos, E., Sarazin, F., Sarkar, B., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Schmidt, F., Scholten, O., Schoorlemmer, H., Schovancova, J., Schovánek, P., Schröder, F., Schulte, S., Schuster, D., Sciutto, S., Scuderi, M., Segreto, A., Settimo, M., Shadkam, A., Shellard, R., Sidelnik, I., Sigl, G., Silva Lopez, H., Amiałkowski, A., Amída, R., Snow, G., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Stanic, S., Stapleton, J., Stasielak, J., Stephan, M., Strazzeri, E., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A., Aua, T., Sutherland, M., Swain, J., Szadkowski, Z., Szuba, M., Tamashiro, A., Tapia, A., Tartare, M., Taşcau, O., Tavera Ruiz, C., Tcaciuc, R., Tegolo, D., Thao, N., Thomas, D., Tiffenberg, J., Timmermans, C., Tiwari, D., Tkaczyk, W., Todero Peixoto, C., Tomé, B., Tonachini, A., Travnicek, P., Tridapalli, D., Tristram, G., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J., Valiño, I., Valore, L., Van Den Berg, A., Varela, E., Vargas Cárdenas, B., Vázquez, J., Vázquez, R., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Wahlberg, H., Wahrlich, P., Wainberg, O., Walz, D., Warner, D., Watson, A., Weber, M., Weidenhaupt, K., Weindl, A., Westerhoff, S., Whelan, B., Wieczorek, G., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Winnick, M., Wommer, M., Wundheiler, B., Yamamoto, T., Yapici, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zimbres Silva, M., Ziolkowski, M., Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), KVI - Center for Advanced Radiation Technology, and Research unit Astroparticle Physics

Subjects
Physics::Instrumentation and Detectors, Solar neutrino, Astrophysics, UPPER LIMIT, PHOTON FRACTION, 01 natural sciences, 7. Clean energy, neutrino, Observatory, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, ORIGIN, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], pion, Astrophysics::Instrumentation and Methods for Astrophysics, Pierre Auger Observatory, COSMIC-RAYS, cosmic ray detectors, and other elementary particle detectors, Cosmic neutrino background, NEUTRINOS, Física nuclear, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, FLUX, FERMI-LAT, Nuclear and High Energy Physics, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], TELESCOPE, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, EXTENSIVE AIR-SHOWERS, SURFACE DETECTOR, Cosmic Ray, Pion, muon, 0103 physical sciences, 010306 general physics, Cosmic rays, Muon, 010308 nuclear & particles physics, Física, and other elementary particles, Ultra-high energy cosmic rays, PERFORMANCE, neutrino flavor, air showers, surface detector, observatory, atmosphere, Auger, cosmic radiation, energy spectrum, 13. Climate action, High Energy Physics::Experiment
Abstract

Erratum: Phys. Rev. D 85, 029902(E) (2012) [http://dx.doi.org/10.1103/PhysRevD.85.029902], The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavours above 0.1 EeV. These interact through charged and neutral currents in the atmosphere giving rise to extensive air showers. When interacting deeply in the atmosphere at nearly horizontal incidence, neutrinos can be distinguished from regular hadronic cosmic rays by the broad time structure of their shower signals in the water-Cherenkov detectors. In this paper we present for the first time an analysis based on down-going neutrinos. We describe the search procedure, the possible sources of background, the method to compute the exposure and the associated systematic uncertainties. No candidate neutrinos have been found in data collected from 1 January 2004 to 31 May 2010. Assuming an E^-2 differential energy spectrum the limit on the single flavour neutrino is (E^2 * dN/dE) < 1.74x10^-7 GeV cm^-2 s^-1 sr^-1 at 90% C.L. in the energy range 1x10^17 eV < E < 1x10^20 eV., We are very grateful to the following agencies and organizations for financial support: Comisión Nacional de Energía Atómica, Fundación Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundaçao de Amparo à Pesquisa do Estado de Rio de Janeiro(FAPERJ), Fundaçao de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP), Ministerio de Ciencia e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB100100904, MSMT-CRLA08016, LC527, 1M06002, and MSM0021620859, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Régional Ile-de-France, Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS), Département Sciences de l’Univers (SDU-INSU/CNRS), France; Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-Württemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium für Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium für Wissenschaft, Forschung und Kunst, Baden- Württemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. 1 P03 D 014 30, N202 090 31/0623, and PAP/218/2006, Poland; Fundaçao para a Ciencia e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejería de Educación de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovación and Consolider-Ingenio 2010 (CPAN), Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DEAC02-07CH11359, DE-FR02-04ER41300, National Science Foundation, Grant No. 0450696, The Grainger Foundation USA; ALFA-EC / HELEN, European Union 6th Framework Program, Grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No. PIEF-GA-2008-220240, and UNESCO.

Published
2011

34. Anisotropy and chemical compositionof ultra-high energy cosmic rays usingarrival directions measured by thePierre Auger Observatory

Author

J. Abraham, P. Abreu, M. Aglietta, C. Aguirre, E. J. Ahn, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Muniz, M. Ambrosio, L. Anchordoqui, S. Andringa, A. Anzalone, C. Aramo, E. Arganda, S. Argir, K. Arisaka, F. Arneodo, F. Arqueros, T. Asch, H. Asorey, P. Assis, J. Aublin, M. Ave, G. Avila, A. Bacher, T. Backer, D. Badagnani, K. B. Barber, A. F. Barbosa, H. J. M. Barbosa, N. Barenthien, S. L. C. Barroso, B. Baughman, P. Bauleo, J. J. Beatty, T. Beau, B. R. Becker, K. H. Becker, A. Belletoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, O. Blanch Bigas, F. Blanco, C. Bleve, H. Blumer, M. Bohacova, E. Bollmann, H. Bolz, C. Bonifazi, R. Bonino, N. Borodai, F. Bracci, J. Brack, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, N. G. Busca, K. S. Caballero Mora, D. Camin, L. Caramete, R. Caruso, W. Carvalho, A. Castellina, J. Castro, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, A. Chiavassa, J. A. Chinellato, A. Chou, J. Chudoba, J. Chye, P. D. J. Clark, R. W. Clay, E. Colombo, R. Conceicao, B. Connolly, F. Contreras, J. Coppens, A. Cordero, A. Cordier, U. Cotti, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. W. Cronin, J. Cuautle, A. Curutiu, S. Dagoret Campagne, R. Dallier, F. Daudo, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, V. de Souza, K. D. de Vries, G. Decerprit, L. del Peral, O. Deligny, A. Della Selva, C. Delle Fratte, H. Dembinski, C. Di Giulio, J. C. Diaz, P. N. Diep, C. Dobrigkeit, J. C. D’Olivo, P. N. Dong, D. Dornic, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D’Urso, I. Dutan, M. A. Du Vernois, R. Engel, M. Erdmann, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, F. Ferrer, A. Ferrero, B. Fick, A. Filevich, A. Filipcic, I. Fleck, S. Fliescher, R. Fonte, C. E. Fracchiolla, E. D. Fraenkel, W. Fulgione, R. F. Gama rra, S. Gambetta, B. Garcıa, D. Garcıa Gamez, D. Garcia Pinto, X. Garrido, H. Geenen, G. Gelmini, H. Gemmekeai, P. L. Ghia, U. Giaccari, K. Gibbs, M. Giller, J. Gitto, H. Glass, L. M. Goggin, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gomez Berisso, P. F. Gomez Vitale, P. Goncalves, M. Goncalves do Amaral, D. Gonzalez, J. G. Gonzalez, D. Gora, A. Gorgi, P. Gouffon, E. Grashorn, V. Grassi, S. Grebe, M. Grigat, A. F. Grillo, J. Grygar, Y. Guardincerri, N. Guardone, C. Guerard, F. Guarino, R. Gumbsheimer, G. P. Guedes, J. Gutierrez, J. D. Hague, V. Halenka, P. Hansen, D. Harari, S. Harmsma, S. Hartmann, J. L. Harton, A. Haungs, M. D. Healy, T. Hebbeker, G. Hebrero, D. Heck, C. Hojvat, V. C. Holmes, P. Homola, G. Hofman, J. R. Horandel, A. Horneffer, M. Horvat, M. Hrabovsky, H. Hucker, T. Huege, M. Hussain, M. Iarlori, A. Insolia, F. Ionita, A. Italiano, S. Jiraskova, M. Kaducak, K. H. Kampert, T. Karova, P. Kasper, B. Ke, B. Keilhauer, E. Kempq, H. Kern, R. M. 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Rodriguez, J. Ro driguez Martino, J. Rodriguez Rojo, I. Rodriguez Cabo, M. D. Rodrıguez Frias, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouille d’Orfeuil, E. Roulet, A. C. Rovero, F. Salamida, H. Salazar, G. Salina, F. Sanchez, M. Santander, C. E. Santo, E. M. Santos, F. Sarazin, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, G. Schleif, A. Schmidt, F. Schmidt, T. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovanek, F. Schroeder, S. Schulte, F. Schussler, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, D. Semikoz, G. Sequieros, M. Settimo, R. C. Shellard, I. Sidelnik, B. B. Siffert, A. Smiakowski, R. Smıda, A. G. K. Smith, B. E. Smith, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, E. Strazzeri, A. Stutz, F. Suarez, T. Suomijarvi, A. D. Supanitsky, M. S. Sutherland, J. Swain, Z. Szadkowski, A. Tamashiro, A. Tamburro, T. Tarutina, O. Tascau, R. Tcaciuc, D. Tcherniakhovski, N. T. Thao, D. Thomas, R. Ticona, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, B. Tome, A. Tonachini, I. Torres, P. Trapani, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, V. Tuci, M. Tueros, E. Tusi, R. Ulrich, M. Unger, M. Urban, J. F. Valdes Galicia, I. Valino, L. Valore, A. M. van den Berg, J. R. Vazquez, R. A. Vazquez, D. Veberic, A. Velarde, T. Venters, V. Verzi, M. Videla, L. Villasenor, G. Vitali, S. Vorobiov, L. Voyvodic, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Warner, S. Westerhoff, B. J. Whelan, N. Wild, C. Wiebusch, G. Wieczorek, L. Wiencke, B. Wilczynska, H. Wilczynski, C. Wileman, M. G. Winnick, G. Worner, H. Wuac, B. Wundheiler, T. Yamamoto, P. Younk, G. Yuan, A. Yushkov, E. Zas, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, M. Ziolkowski, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, J., Abraham, P., Abreu, M., Aglietta, C., Aguirre, E. 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S., Caballero Mora, D., Camin, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, J., Castro, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, J., Chye, P. D. J., Clark, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, B., Connolly, F., Contrera, J., Coppen, A., Cordero, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J. W., Cronin, J., Cuautle, A., Curutiu, S., Dagoret Campagne, R., Dallier, F., Daudo, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, P. N., Diep, C., Dobrigkeit, J. C., D’Olivo, P. N., Dong, D., Dornic, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D’Urso, I., Dutan, M. 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D., Healy, T., Hebbeker, G., Hebrero, D., Heck, C., Hojvat, V. C., Holme, P., Homola, G., Hofman, J. R., Horandel, A., Horneffer, M., Horvat, M., Hrabovsky, H., Hucker, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Ke, B., Keilhauer, E., Kempq, H., Kern, R. M., Kieckhafer, H. O., Klage, Kleifges, M., J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Kopmann, A., Krieger, O., Kromer, D., Kruppke Hansen, D., Kuempel, N., Kunka, A., Kusenko, G., La Rosa, C., Lachaud, B. L., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguide Oliveira, A., Lemiere, A., Letessier Selvon, M., Leuthold, I., Lhenry Yvon, R., Lopez, A., Lopez Aguera, K., Louedec, J., Lozano Bahilo, A., Lucero, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, M., Malek, D., Mandat, P., Mantsch, F., Marchetto, A. G., Mariazzi, I. C., Mari, H. R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, O., Martineau, O., Martınez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewen, R. R., Mcneil, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, J. C., Moreno, C., Morri, M., Mostafa, C. A., Moura, M., Mucchi, S., Mueller, M. . A., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, F., Nerling, C., Newman Holme, D., Newton, P. T., Nhung, D., Nicotra, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V. 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Subjects
cosmic ray experiments, ultra high energy cosmic ray
Abstract

The Pierre Auger Collaboration has reported evidence for anisotropy in the dis- tribution of arrival directions of the cosmic rays with energies E > Eth = 5.5×10^19 eV. These show a correlation with the distribution of nearby extragalactic objects, including an appar- ent excess around the direction of Centaurus A. If the particles responsible for these excesses at E > Eth are heavy nuclei with charge Z, the proton component of the sources should lead to excesses in the same regions at energies E/Z. We here report the lack of anisotropies in these directions at energies above Eth/Z (for illustrative values of Z = 6, 13, 26). If the anisotropies above Eth are due to nuclei with charge Z, and under reasonable assumptions about the acceleration process, these observations imply stringent constraints on the allowed proton fraction at the lower energies.

Published
2011

35. The Lateral Trigger Probability function for UHE Cosmic Rays Showers detected by the Pierre Auger Observatory

Author

J. Abraham, P. Abreu, M. Aglietta, C. Aguirre, E. J. Ahn, D. Allard, I. Allekotte, J. Allen, P. Allison, J. Alvarez Muniz, M. Ambrosio, L. Anchordoqui, S. Andringa, A. Anzalone, C. Aramo, E. Arganda, S. Argir, K. Arisaka, F. Arneodo, F. Arqueros, T. Asch, H. Asorey, P. Assis, J. Aublin, M. Ave, G. Avila, A. Bacher, T. Backer, D. Badagnani, K. B. Barber, A. F. Barbosa, H. J. M. Barbosa, N. Barenthien, S. L. C. Barroso, B. Baughman, P. Bauleo, J. J. Beatty, T. Beau, B. R. Becker, K. H. Becker, A. Belletoile, J. A. Bellido, S. BenZvi, C. Berat, X. Bertou, P. L. Biermann, P. Billoir, O. Blanch Bigas, F. Blanco, C. Bleve, H. Blumer, M. Bohacova, E. Bollmann, H. Bolz, C. Bonifazi, R. Bonino, N. Borodai, F. Bracci, J. Brack, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, N. G. Busca, K. S. Caballero Mora, D. Camin, L. Caramete, R. Caruso, W. Carvalho, A. Castellina, J. Castro, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, A. Chiavassa, J. A. Chinellato, A. Chou, J. Chudoba, J. Chye, P. D. J. Clark, R. W. Clay, E. Colombo, R. Conceicao, B. Connolly, F. Contreras, J. Coppens, A. Cordero, A. Cordier, U. Cotti, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. W. Cronin, J. Cuautle, A. Curutiu, S. Dagoret Campagne, R. Dallier, F. Daudo, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, V. de Souza, K. D. de Vries, G. Decerprit, L. del Peral, O. Deligny, A. Della Selva, C. Delle Fratte, H. Dembinski, C. Di Giulio, J. C. Diaz, P. N. Diep, C. Dobrigkeit, J. C. D’Olivo, P. N. Dong, D. Dornic, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D’Urso, I. Dutan, M. A. Du Vernois, R. Engel, M. Erdmann, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, F. Ferrer, A. Ferrero, B. Fick, A. Filevich, A. Filipcic, I. Fleck, S. Fliescher, R. Fonte, C. E. Fracchiolla, E. D. Fraenkel, W. Fulgione, R. F. Gama rra, S. Gambetta, B. Garcıa, D. Garcıa Gamez, D. Garcia Pinto, X. Garrido, H. Geenen, G. Gelmini, H. Gemmekeai, P. L. Ghia, U. Giaccari, K. Gibbs, M. Giller, J. Gitto, H. Glass, L. M. Goggin, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gomez Berisso, P. F. Gomez Vitale, P. Goncalves, M. Goncalves do Amaral, D. Gonzalez, J. G. Gonzalez, D. Gora, A. Gorgi, P. Gouffon, E. Grashorn, V. Grassi, S. Grebe, M. Grigat, A. F. Grillo, J. Grygar, Y. Guardincerri, N. Guardone, C. Guerard, F. Guarino, R. Gumbsheimer, G. P. Guedes, J. Gutierrez, J. D. Hague, V. Halenka, P. Hansen, D. Harari, S. Harmsma, S. Hartmann, J. L. Harton, A. Haungs, M. D. Healy, T. Hebbeker, G. Hebrero, D. Heck, C. Hojvat, V. C. Holmes, P. Homola, G. Hofman, J. R. Horandel, A. Horneffer, M. Horvat, M. Hrabovsky, H. Hucker, T. Huege, M. Hussain, M. Iarlori, A. Insolia, F. Ionita, A. Italiano, S. Jiraskova, M. Kaducak, K. H. Kampert, T. Karova, P. Kasper, B. Ke, B. Keilhauer, E. Kempq, H. Kern, R. M. Kieckhafer, H. O. Klages, M. . Kleifges, J. Kleinfeller, R. Knapik, J. Knapp, D. H. Koang, A. Kopmann, A. Krieger, O. Kromer, D. Kruppke Hansen, D. Kuempel, N. Kunka, A. Kusenko, G. La Rosa, C. Lachaud, B. L. Lago, P. Lautridou, M. S. A. B. Leao, D. Lebrun, P. Lebrun, J. Lee, M. A. Leiguide Oliveira, A. Lemiere, A. Letessier Selvon, M. Leuthold, I. Lhenry Yvon, R. Lopez, A. Lopez Aguera, K. Louedec, J. Lozano Bahilo, A. Lucero, H. Lyberis, M. C. Maccarone, C. Macolino, S. Maldera, M. Malek, D. Mandat, P. Mantsch, F. Marchetto, A. G. Mariazzi, I. C. Maris, H. R. Marquez Falcon, O. Martineau, O. Martınez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurizio, P. O. Mazur, M. McEwen, R. R. McNeil, G. Medina Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, R. Meyhandan, M. I. Micheletti, G. Miele, W. Miller, L. Miramonti, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, J. C. Moreno, C. Morris, M. Mostafa, C. A. Moura, M. Mucchi, S. Mueller, M. . A. Muller, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, F. Nerling, C. Newman Holmes, D. Newton, P. T. Nhung, D. Nicotra, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nozka, M. Nyklicek, J. Oehlschlager, A. Olinto, P. Oliva, V. M. Olmos Gilbaja, M. Ortiz, F. Ortolani, B. Oßwald, N. Pacheco, D. Pakk Selmi Dei, M. Palatka, J. Pallotta, G. Parente, E. Parizot, S. Parlati, S. Pastor, M. Patel, T. Paul, V. Pavlidou, K. Payet, M. Pech, J. Pekala, I. M. Pepe, R. Pesce, E. Petermann, S. Petrera, P. Petrinca, A. Petrolini, Y. Petrov, J. Petrovic, C. Pfendner, A. Pichel, R. Piegaia, T. Pierog, M. Pimenta, T. Pinto, V. Pirronello, O. Pisanti, M. Platino, J. Pochon, V. H. Ponce, M. Pontz, J. Pouryamout, L. Prado J.r., P. Privitera, M. Prouza, E. J. Quel, G. Raia, J. Rautenberg, O. Ravel, D. Ravignani, A. Redondo, H. C. Reis, S. Reucroft, B. Revenu, F. A. S. Rezendem, J. Ridky, S. Riggi, M. Risse, C. Riviere, V. Rizi, C. Robledo, M. D. Roberts, G. Rodriguez, J. Ro driguez Martino, J. Rodriguez Rojo, I. Rodriguez Cabo, M. D. Rodrıguez Frias, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouille d’Orfeuil, E. Roulet, A. C. Rovero, F. Salamida, H. Salazar, G. Salina, F. Sanchez, M. Santander, C. E. Santo, E. M. Santos, F. Sarazin, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, G. Schleif, A. Schmidt, F. Schmidt, T. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovanek, F. Schroeder, S. Schulte, F. Schussler, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, D. Semikoz, G. Sequieros, M. Settimo, R. C. Shellard, I. Sidelnik, B. B. Siffert, A. Smiakowski, R. Smıda, A. G. K. Smith, B. E. Smith, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, E. Strazzeri, A. Stutz, F. Suarez, T. Suomijarvi, A. D. Supanitsky, M. S. Sutherland, J. Swain, Z. Szadkowski, A. Tamashiro, A. Tamburro, T. Tarutina, O. Tascau, R. Tcaciuc, D. Tcherniakhovski, N. T. Thao, D. Thomas, R. Ticona, J. Tiffenberg, C. 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J., Ahn, D., Allard, I., Allekotte, J., Allen, P., Allison, J., Alvarez Muniz, M., Ambrosio, L., Anchordoqui, S., Andringa, A., Anzalone, C., Aramo, E., Arganda, S., Argir, K., Arisaka, F., Arneodo, F., Arquero, T., Asch, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, A., Bacher, T., Backer, D., Badagnani, K. B., Barber, A. F., Barbosa, H. J. M., Barbosa, N., Barenthien, S. L. C., Barroso, B., Baughman, P., Bauleo, J. J., Beatty, T., Beau, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, O., Blanch Biga, F., Blanco, C., Bleve, H., Blumer, M., Bohacova, E., Bollmann, H., Bolz, C., Bonifazi, R., Bonino, N., Borodai, F., Bracci, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N. G., Busca, K. S., Caballero Mora, D., Camin, L., Caramete, R., Caruso, W., Carvalho, A., Castellina, J., Castro, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, J., Chye, P. D. J., Clark, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, B., Connolly, F., Contrera, J., Coppen, A., Cordero, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J. W., Cronin, J., Cuautle, A., Curutiu, S., Dagoret Campagne, R., Dallier, F., Daudo, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, C., De Donato, S. J., de Jong, G., De La Vega, W. J. M., de Mello Junior, J. R. T., de Mello Neto, DE MITRI, Ivan, V., de Souza, K. D., de Vrie, G., Decerprit, L., del Peral, O., Deligny, A., Della Selva, C., Delle Fratte, H., Dembinski, C., Di Giulio, J. C., Diaz, P. N., Diep, C., Dobrigkeit, J. C., D’Olivo, P. N., Dong, D., Dornic, A., Dorofeev, J. C., dos Anjo, M. T., Dova, D., D’Urso, I., Dutan, M. 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R., Marquez Falcon, Marsella, Giovanni, Martello, Daniele, O., Martineau, O., Martınez Bravo, H. J., Mathe, J., Matthew, J. A. J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewen, R. R., Mcneil, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, R., Meyhandan, M. I., Micheletti, G., Miele, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, B., Morale, C., Morello, J. C., Moreno, C., Morri, M., Mostafa, C. A., Moura, M., Mucchi, S., Mueller, M. . A., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, F., Nerling, C., Newman Holme, D., Newton, P. T., Nhung, D., Nicotra, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V. 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B., Tridapalli, G., Tristram, E., Trovato, V., Tuci, M., Tuero, E., Tusi, R., Ulrich, M., Unger, M., Urban, J. F., Valdes Galicia, I., Valino, L., Valore, A. M., van den Berg, J. R., Vazquez, R. A., Vazquez, D., Veberic, A., Velarde, T., Venter, V., Verzi, M., Videla, L., Villasenor, G., Vitali, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, S., Westerhoff, B. J., Whelan, N., Wild, C., Wiebusch, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., Wileman, M. G., Winnick, G., Worner, H., Wuac, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, and M., Ziolkowski

Subjects
Hybrid detector, Surface detector, Extensive Air Shower, Trigger performance, Ultra-High Energy Cosmic Ray
Abstract

In this paper we introduce the concept of Lateral Trigger Probability (LTP) function, i.e., the probability for an Extensive Air Shower (EAS) to trigger an individual detector of a ground based array as a function of distance to the shower axis, taking into account energy, mass and direction of the primary cosmic ray. We apply this concept to the surface array of the Pierre Auger Observatory consisting of a 1.5 km spaced grid of about 1600 water Cherenkov stations. Using Monte Carlo simulations of ultra-high energy showers the LTP functions are derived for energies in the range between 10^17 and 10^19 eV and zenith angles up to 65 degree. A parametrization combining a step function with an exponential is found to reproduce them very well in the considered range of energies and zenith angles. The LTP functions can also be obtained from data using events simultaneously observed by the fluorescence and the surface detector of the Pierre Auger Observatory (hybrid events). We validate the Monte Carlo results showing how LTP functions from data are in good agreement with simulations.

Published
2011

36. Measurement of the Depth of Maximum of Extensive Air Showers above 10(18) eV

Author

J. Abraham, P. Abreu, M. Aglietta, E. J. Ahn, D. Allard, I. Allekotte, J. Allen, J. Alvarez-Muñiz, M. Ambrosio, L. Anchordoqui, S. Andringa, T. Antičić, A. Anzalone, C. Aramo, E. Arganda, K. Arisaka, F. Arqueros, H. Asorey, P. Assis, J. Aublin, M. Ave, G. Avila, T. Bäcker, D. Badagnani, M. Balzer, K. B. Barber, A. F. Barbosa, S. L. C. Barroso, B. Baughman, P. Bauleo, J. J. Beatty, B. R. Becker, K. H. Becker, A. Bellétoile, J. A. Bellido, S. BenZvi, C. Berat, T. Bergmann, X. Bertou, P. L. Biermann, P. Billoir, O. Blanch-Bigas, F. Blanco, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, P. Brogueira, W. C. Brown, R. Bruijn, P. Buchholz, A. Bueno, R. E. Burton, N. G. Busca, K. S. Caballero-Mora, L. Caramete, R. Caruso, A. Castellina, O. Catalano, G. Cataldi, L. Cazon, R. Cester, J. Chauvin, A. Chiavassa, J. A. Chinellato, A. Chou, J. Chudoba, R. W. Clay, E. Colombo, M. R. Coluccia, R. Conceição, F. Contreras, H. Cook, M. J. Cooper, J. Coppens, A. Cordier, U. Cotti, S. Coutu, C. E. Covault, A. Creusot, A. Criss, J. Cronin, A. Curutiu, S. Dagoret-Campagne, R. Dallier, K. Daumiller, B. R. Dawson, R. M. de Almeida, M. De Domenico, C. De Donato, S. J. de Jong, G. De La Vega, W. J. M. de Mello Junior, J. R. T. de Mello Neto, I. De Mitri, V. de Souza, K. D. de Vries, G. Decerprit, L. del Peral, O. Deligny, A. Della Selva, C. Delle Fratte, H. Dembinski, C. Di Giulio, J. C. Diaz, M. L. Díaz Castro, P. N. Diep, C. Dobrigkeit, J. C. D’Olivo, P. N. Dong, A. Dorofeev, J. C. dos Anjos, M. T. Dova, D. D’Urso, I. Dutan, M. A. DuVernois, J. Ebr, R. Engel, M. Erdmann, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, H. Falcke, G. Farrar, A. C. Fauth, N. Fazzini, A. Ferrero, B. Fick, A. Filevich, A. Filipčič, I. Fleck, S. Fliescher, C. E. Fracchiolla, E. D. Fraenkel, U. Fröhlich, W. Fulgione, R. F. Gamarra, S. Gambetta, B. García, D. García Gámez, D. Garcia-Pinto, X. Garrido, G. Gelmini, H. Gemmeke, P. L. Ghia, U. Giaccari, M. Giller, H. Glass, L. M. Goggin, M. S. Gold, G. Golup, F. Gomez Albarracin, M. Gómez Berisso, P. Gonçalves, D. Gonzalez, J. G. Gonzalez, D. Góra, A. Gorgi, P. Gouffon, S. R. Gozzini, E. Grashorn, S. Grebe, M. Grigat, A. F. Grillo, Y. Guardincerri, F. Guarino, G. P. Guedes, J. D. Hague, V. Halenka, P. Hansen, D. Harari, S. Harmsma, J. L. Harton, A. Haungs, T. Hebbeker, D. Heck, A. E. Herve, C. Hojvat, V. C. Holmes, P. Homola, J. R. Hörandel, A. Horneffer, M. Hrabovský, T. Huege, M. Hussain, M. Iarlori, A. Insolia, F. Ionita, A. Italiano, S. Jiraskova, K. Kadija, M. Kaducak, K. H. Kampert, T. Karova, P. Kasper, B. Kégl, B. Keilhauer, A. Keivani, J. Kelley, E. Kemp, R. M. Kieckhafer, H. O. Klages, M. Kleifges, J. Kleinfeller, R. Knapik, J. Knapp, D.-H. Koang, A. Krieger, O. Krömer, D. Kruppke-Hansen, F. Kuehn, D. Kuempel, K. Kulbartz, N. Kunka, A. Kusenko, G. La Rosa, C. Lachaud, B. L. Lago, P. Lautridou, M. S. A. B. Leão, D. Lebrun, P. Lebrun, J. Lee, M. A. Leigui de Oliveira, A. Lemiere, A. Letessier-Selvon, I. Lhenry-Yvon, R. López, A. Lopez Agüera, K. Louedec, J. Lozano Bahilo, A. Lucero, M. Ludwig, H. Lyberis, M. C. Maccarone, C. Macolino, S. Maldera, D. Mandat, P. Mantsch, A. G. Mariazzi, V. Marin, I. C. Maris, H. R. Marquez Falcon, G. Marsella, D. Martello, O. Martínez Bravo, H. J. Mathes, J. Matthews, J. A. J. Matthews, G. Matthiae, D. Maurizio, P. O. Mazur, M. McEwen, G. Medina-Tanco, M. Melissas, D. Melo, E. Menichetti, A. Menshikov, C. Meurer, S. Mičanović, M. I. Micheletti, W. Miller, L. Miramonti, S. Mollerach, M. Monasor, D. Monnier Ragaigne, F. Montanet, B. Morales, C. Morello, E. Moreno, J. C. Moreno, C. Morris, M. Mostafá, S. Mueller, M. A. Muller, R. Mussa, G. Navarra, J. L. Navarro, S. Navas, P. Necesal, L. Nellen, P. T. Nhung, N. Nierstenhoefer, D. Nitz, D. Nosek, L. Nožka, M. Nyklicek, J. Oehlschläger, A. Olinto, P. Oliva, V. M. Olmos-Gilbaja, M. Ortiz, N. Pacheco, D. Pakk Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, G. Parente, E. Parizot, S. Parlati, A. Parra, J. Parrisius, R. D. Parsons, S. Pastor, T. Paul, V. Pavlidou, K. Payet, M. Pech, J. Pękala, R. Pelayo, I. M. Pepe, L. Perrone, R. Pesce, E. Petermann, S. Petrera, P. Petrinca, A. Petrolini, Y. Petrov, J. Petrovic, C. Pfendner, R. Piegaia, T. Pierog, M. Pimenta, V. Pirronello, M. Platino, V. H. Ponce, M. Pontz, P. Privitera, M. Prouza, E. J. Quel, J. Rautenberg, O. Ravel, D. Ravignani, A. Redondo, B. Revenu, F. A. S. Rezende, J. Ridky, S. Riggi, M. Risse, P. Ristori, C. Rivière, V. Rizi, C. Robledo, G. Rodriguez, J. Rodriguez Martino, J. Rodriguez Rojo, I. Rodriguez-Cabo, M. D. Rodríguez-Frías, G. Ros, J. Rosado, T. Rossler, M. Roth, B. Rouillé-d’Orfeuil, E. Roulet, A. C. Rovero, F. Salamida, H. Salazar, G. Salina, F. Sánchez, M. Santander, C. E. Santo, E. Santos, E. M. Santos, F. Sarazin, S. Sarkar, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, F. Schmidt, T. Schmidt, O. Scholten, H. Schoorlemmer, J. Schovancova, P. Schovánek, F. Schroeder, S. Schulte, F. Schüssler, D. Schuster, S. J. Sciutto, M. Scuderi, A. Segreto, D. Semikoz, M. Settimo, A. Shadkam, R. C. Shellard, I. Sidelnik, B. B. Siffert, G. Sigl, A. Śmiałkowski, R. Šmída, G. R. Snow, P. Sommers, J. Sorokin, H. Spinka, R. Squartini, J. Stasielak, M. Stephan, E. Strazzeri, A. Stutz, F. Suarez, T. Suomijärvi, A. D. Supanitsky, T. Šuša, M. S. Sutherland, J. Swain, Z. Szadkowski, A. Tamashiro, A. Tamburro, A. Tapia, T. Tarutina, O. Taşcău, R. Tcaciuc, D. Tcherniakhovski, D. Tegolo, N. T. Thao, D. Thomas, J. Tiffenberg, C. Timmermans, W. Tkaczyk, C. J. Todero Peixoto, B. Tomé, A. Tonachini, P. Travnicek, D. B. Tridapalli, G. Tristram, E. Trovato, M. Tueros, R. Ulrich, M. Unger, M. Urban, J. F. Valdés Galicia, I. Valiño, L. Valore, A. M. van den Berg, J. R. Vázquez, R. A. Vázquez, D. Veberič, T. Venters, V. Verzi, M. Videla, L. Villaseñor, S. Vorobiov, L. Voyvodic, H. Wahlberg, P. Wahrlich, O. Wainberg, D. Warner, A. A. 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de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble 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(PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, J., Abraham, P., Abreu, M., Aglietta, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, J., ALVAREZ MUNIZ, M., Ambrosio, L., Anchordoqui, S., Andringa, T., Anticic, A., Anzalone, C., Aramo, E., Arganda, K., Arisaka, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, T., Backer, D., Badagnani, M., Balzer, K. B., Barber, A. F., Barbosa, S. L. C., Barroso, B., Baughman, P., Bauleo, J., Beatty, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, X., Bertou, P. L., Biermann, P., Billoir, O., BLANCH BIGAS, F., Blanco, M., Blanco, Bleve, Carla, H., Blumer, M., Bohacova, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N., Busca, K. S., CABALLERO MORA, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, F., Contrera, H., Cook, M., Cooper, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., DAGORET CAMPAGNE, R., Dallier, K., Daumiller, B. R., Dawson, R. M., De, Almeida, M., Dedomenico, C., Dedonato, S. J., Dejong, G., Delavega, W. J. M., Demellojunior, J., Demelloneto, DE MITRI, Ivan, V., Desouzam, K. D., Devrie, G., Decerprit, L., Delperal, O., Deligny, A., Dellaselva, C., Dellefratte, H., Dembinski, C., Digiulio, J. C., Diaz, M., Castro, P. N., Diep, C., Dobrigkeit, J. C., Dolivo, P. N., Dong, A., Dorofeev, J. C., Dosanjo, M., Dova, D., Durso, I., Dutan, M. A., Duvernoi, J., Ebr, R., Engel, M., Erdmann, C., O, A., Etchegoyen, P., Facalsanlui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, U., Frohlich, W., Fulgione, R. F., Gamarra, S., Gambetta, B., Garcia, D., Gamez, D., GARCIA PINTO, X., Garrido, G., Gelmini, H., Gemmekeag, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, L., Goggin, M. S., Gold, G., Golup, F., Gomezalbarracin, M., Berisso, P., GONC ALVES, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, M., Grigat, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, V. C., Holme, P., Homola, J. R., Horandel, A., Horneffer, M., Hrabovsky, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, K., Kadija, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Kegl, B., Keilhauer, A., Keivani, J., Kelley, E., Kempo, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Krieger, O., Kromer, D., KRUPPKE HANSEN, F., Kuehn, D., Kuempel, K., Kulbartz, N., Kunka, A., Kusenko, G., Larosa, C., Lachaud, B., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguideoliveira, A., Lemiere, A., LETESSIER SELVON, I., LHENRY YVON, R., Lopez, A., Lopezaguera, K., Louedec, J., Lozanobahilo, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari, H., Falcon, Marsella, Giovanni, Martello, Daniele, O., Bravo, H. J., Mathe, J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewenbp, G., MEDINA TANCO, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, C., Meurer, S., Micanovic, M. I., Micheletti, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnierragaigne, F., Montanet, B., Morale, C., Morello, E., Ba, J. C., Moreno, C., Morri, M., Mostafa, S., Mueller, M., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, P., Nhung, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V., Br, M., Ortiz, N., Pacheco, D., PAKKSELMI DEI, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, S., Parlati, A., Parra, J., Parrisiu, R., Parson, S., Pastor, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, R., Pelayo, I., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, R., Piegaia, T., Pierog, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, B., Revenu, F. A. S., Rezende, J., Ridky, S., Riggi, M., Risse, P., Ristori, C., Riviere, V., Rizi, C., Robledo, G., Rodriguez, J., Rodriguezmartino, J., Rodriguezrojo, I., RODRIGUEZ CABO, M. D., RODRIGUEZ FRIAS, G., Ro, J., Rosado, T., Rossler, M., Roth, B., ROUILLE DORFEUIL, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, Settimo, Mariangela, R., Shellard, I., Sidelnik, B. B., Siffert, G., Sigl, A., Smiakowski, R., Smida, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, J., Stasielak, M., Stephan, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, T., Susa, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, A., Tapia, T., Tarutina, O., TAS CAU, R., Tcaciuc, D., Tcherniakhovski, D., Tegolo, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Toderopeixoto, B., Tome, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J., Galicia, I., Valino, L., Valore, A. M., Vandenberg, J. R., Vazquez, R. A., Vazquez, D., Veberic, T., Venter, V., Verzi, M., Videla, L., Villasenor, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, A. A., Watson, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., William, T., Winchen, M. G., Winnick, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M., Ziolkowski, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, KVI - Center for Advanced Radiation Technology, and Research unit Astroparticle Physics

Subjects
[PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], FLUORESCENCE LIGHT, General Physics and Astronomy, Pierre Auger Observatory, depth of maximum, fluorescence detector, cosmic rays, FOS: Physical sciences, Cosmic ray, Chemical Composition, Astrophysics, Mass composition, ENERGIA, 01 natural sciences, Coincidence, Auger, Nuclear physics, Physics and Astronomy (all), 0103 physical sciences, RECONSTRUCTION, High-Energy Cosmic Ray, 010303 astronomy & astrophysics, DETECTOR, Ciencias Exactas, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Measurement, SPECTRUM, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Pierre Auger Experiment, Detector, Primary composition, Física, COSMIC-RAYS, longitudinal development, Longitudinal development, RESOLUTION, Física nuclear, fluorescence, Astrophysics - High Energy Astrophysical Phenomena, energy
Abstract

We describe the measurement of the depth of maximum, Xmax, of the longitudinal development of air showers induced by cosmic rays. Almost four thousand events above 10¹⁸ eV observed by the fluorescence detector of the Pierre Auger Observatory in coincidence with at least one surface detector station are selected for the analysis. The average shower maximum was found to evolve with energy at a rate of (106⁺³⁵₋₂₁) g/cm²/decade below 1018.24 ± 0.05 eV and (24 ± 3) g/cm²/decade above this energy. The measured shower-to-shower fluctuations decrease from about 55 to 26 g/cm². The interpretation of these results in terms of the cosmic ray mass composition is briefly discussed., La lista completa de autores que integran el documento puede consultarse en el archivo., Facultad de Ciencias Exactas, Instituto de Física La Plata

Published
2010

37. A study of the effect of molecular and aerosol conditions in the atmosphere on air fluorescence measurements at the Pierre Auger Observatory

Author

J. ABRAHAM, P. ABREU, M. AGLIETTA, E. J. AHN, D. ALLARD, I. ALLEKOTTE, J. ALLEN, J. ALVAREZ MUNIZ, M. AMBROSIO, L. ANCHORDOQUI, S. ANDRINGA, T. ANTICIC, A. ANZALONE, C. ARAMO, E. ARGANDA, K. ARISAKA, F. ARQUEROS, H. ASOREY, P. ASSIS, J. AUBLIN, M. AVE, G. AVILA, T. BACKER, D. BADAGNANI, M. BALZER, K. B. BARBER, A. F. BARBOSA, S. L. C. BARROSO, B. BAUGHMAN, P. BAULEO, J. BEATTY, B. R. BECKER, K. H. BECKER, A. BELLETOILE, J. A. BELLIDO, S. BENZVI, C. BERAT, T. BERGMANN, X. BERTOU, P. L. BIERMANN, P. BILLOIR, O. BLANCH BIGAS, F. BLANCO, M. BLANCO, H. BLUMER, M. BOHACOVA, D. BONCIOLI, C. BONIFAZI, R. BONINO, N. BORODAI, J. BRACK, P. BROGUEIRA, W. C. BROWN, R. BRUIJN, P. BUCHHOLZ, A. BUENO, R. E. BURTON, N. BUSCA, K. S. CABALLERO MORA, L. CARAMETE, R. CARUSO, A. CASTELLINA, O. CATALANO, G. CATALDI, L. CAZON, R. CESTER, J. CHAUVIN, A. CHIAVASSA, J. A. CHINELLATO, A. CHOU, J. CHUDOBA, R. W. CLAY, E. COLOMBO, R. CONCEICAO, F. CONTRERAS, H. COOK, M. COOPER, J. COPPENS, A. CORDIER, U. COTTI, S. COUTU, C. E. COVAULT, A. CREUSOT, A. CRISS, J. CRONIN, A. CURUTIU, S. DAGORET CAMPAGNE, R. DALLIER, K. DAUMILLER, B. R. DAWSON, R. M. DE, ALMEIDA, M. DEDOMENICO, C. DEDONATO, S. J. DEJONG, G. DELAVEGA, W. J. M. DEMELLOJUNIOR, J. DEMELLONETO, V. DESOUZAM, K. D. DEVRIES, G. DECERPRIT, L. DELPERAL, O. DELIGNY, A. DELLASELVA, C. DELLEFRATTE, H. DEMBINSKI, C. DIGIULIO, J. C. DIAZ, M. CASTRO, P. N. DIEP, C. DOBRIGKEIT, J. C. DOLIVO, P. N. DONG, A. DOROFEEV, J. C. DOSANJOS, M. DOVA, D. DURSO, I. DUTAN, M. A. DUVERNOIS, J. EBR, R. ENGEL, M. ERDMANN, C. O, A. ETCHEGOYEN, P. FACALSANLUIS, H. FALCKE, G. FARRAR, A. C. FAUTH, N. FAZZINI, A. FERRERO, B. FICK, A. FILEVICH, A. FILIPCIC, I. FLECK, S. FLIESCHER, C. E. FRACCHIOLLA, E. D. FRAENKEL, U. FROHLICH, W. FULGIONE, R. F. GAMARRA, S. GAMBETTA, B. GARCIA, D. GAMEZ, D. GARCIA PINTO, X. GARRIDO, G. GELMINI, H. GEMMEKEAG, P. L. GHIA, U. GIACCARI, M. GILLER, H. GLASS, L. GOGGIN, M. S. GOLD, G. GOLUP, F. GOMEZALBARRACIN, M. BERISSO, P. GONC ALVES, D. GONZALEZ, J. G. GONZALEZ, D. GORA, A. GORGI, P. GOUFFON, S. R. GOZZINI, E. GRASHORN, S. GREBE, M. GRIGAT, A. F. GRILLO, Y. GUARDINCERRI, F. GUARINO, G. P. GUEDES, J. D. HAGUE, V. HALENKA, P. HANSEN, D. HARARI, S. HARMSMA, J. L. HARTON, A. HAUNGS, T. HEBBEKER, D. HECK, A. E. HERVE, C. HOJVAT, V. C. HOLMES, P. HOMOLA, J. R. HORANDEL, A. HORNEFFER, M. HRABOVSKY, T. HUEGE, M. HUSSAIN, M. IARLORI, A. INSOLIA, F. IONITA, A. ITALIANO, S. JIRASKOVA, K. KADIJA, M. KADUCAK, K. H. KAMPERT, T. KAROVA, P. KASPER, B. KEGL, B. KEILHAUER, A. KEIVANI, J. KELLEY, E. KEMPO, R. M. KIECKHAFER, H. O. KLAGES, M. KLEIFGES, J. KLEINFELLER, R. KNAPIK, J. KNAPP, D. H. KOANG, A. KRIEGER, O. KROMER, D. KRUPPKE HANSEN, F. KUEHN, D. KUEMPEL, K. KULBARTZ, N. KUNKA, A. KUSENKO, G. LAROSA, C. LACHAUD, B. LAGO, P. LAUTRIDOU, M. S. A. B. LEAO, D. LEBRUN, P. LEBRUN, J. LEE, M. A. LEIGUIDEOLIVEIRA, A. LEMIERE, A. LETESSIER SELVON, I. LHENRY YVON, R. LOPEZ, A. LOPEZAGUERA, K. LOUEDEC, J. LOZANOBAHILO, A. LUCERO, M. LUDWIG, H. LYBERIS, M. C. MACCARONE, C. MACOLINO, S. MALDERA, D. MANDAT, P. MANTSCH, A. G. MARIAZZI, V. MARIN, I. C. MARIS, H. FALCON, O. BRAVO, H. J. MATHES, J. MATTHEWS, G. MATTHIAE, D. MAURIZIO, P. O. MAZUR, M. MCEWENBP, G. MEDINA TANCO, M. MELISSAS, D. MELO, E. MENICHETTI, A. MENSHIKOV, C. MEURER, S. MICANOVIC, M. I. MICHELETTI, W. MILLER, L. MIRAMONTI, S. MOLLERACH, M. MONASOR, D. MONNIERRAGAIGNE, F. MONTANET, B. MORALES, C. MORELLO, E. BA, J. C. MORENO, C. MORRIS, M. MOSTAFA, S. MUELLER, M. MULLER, R. MUSSA, G. NAVARRA, J. L. NAVARRO, S. NAVAS, P. NECESAL, L. NELLEN, P. NHUNG, N. NIERSTENHOEFER, D. NITZ, D. NOSEK, L. NOZKA, M. NYKLICEK, J. OEHLSCHLAGER, A. OLINTO, P. OLIVA, V. BR, M. ORTIZ, N. PACHECO, D. PAKKSELMI DEI, M. PALATKA, J. PALLOTTA, N. PALMIERI, G. PARENTE, E. PARIZOT, S. PARLATI, A. PARRA, J. PARRISIUS, R. PARSONS, S. PASTOR, T. PAUL, V. PAVLIDOU, K. PAYET, M. PECH, J. PEKALA, R. PELAYO, I. PEPE, R. PESCE, E. PETERMANN, S. PETRERA, P. PETRINCA, A. PETROLINI, Y. PETROV, J. PETROVIC, C. PFENDNER, R. PIEGAIA, T. PIEROG, M. PIMENTA, V. PIRRONELLO, M. PLATINO, V. H. PONCE, M. PONTZ, P. PRIVITERA, M. PROUZA, E. J. QUEL, J. RAUTENBERG, O. RAVEL, D. RAVIGNANI, A. REDONDO, B. REVENU, F. A. S. REZENDE, J. RIDKY, S. RIGGI, M. RISSE, P. RISTORI, C. RIVIERE, V. RIZI, C. ROBLEDO, G. RODRIGUEZ, J. RODRIGUEZMARTINO, J. RODRIGUEZROJO, I. RODRIGUEZ CABO, M. D. RODRIGUEZ FRIAS, G. ROS, J. ROSADO, T. ROSSLER, M. ROTH, B. ROUILLE DORFEUIL, E. ROULET, A. C. ROVERO, F. SALAMIDA, H. SALAZAR, G. SALINA, F. SANCHEZ, M. SANTANDER, C. E. SANTO, E. SANTO, E. M. SANTOS, F. SARAZIN, S. SARKAR, R. SATO, N. SCHARF, V. SCHERINI, H. SCHIELER, P. SCHIFFER, A. SCHMIDT, F. SCHMIDT, T. SCHMIDT, O. SCHOLTEN, H. SCHOORLEMMER, J. SCHOVANCOVA, P. SCHOVANEK, F. SCHROEDER, S. SCHULTE, F. SCHUSSLER, D. SCHUSTER, S. J. SCIUTTO, M. SCUDERI, A. SEGRETO, D. SEMIKOZ, R. SHELLARD, I. SIDELNIK, B. B. SIFFERT, G. SIGL, A. SMIAKOWSKI, R. SMIDA, G. R. SNOW, P. SOMMERS, J. SOROKIN, H. SPINKA, R. SQUARTINI, J. STASIELAK, M. STEPHAN, E. STRAZZERI, A. STUTZ, F. SUAREZ, T. SUOMIJARVI, A. D. SUPANITSKY, T. SUSA, M. S. SUTHERLAND, J. SWAIN, Z. SZADKOWSKI, A. TAMASHIRO, A. TAMBURRO, A. TAPIA, T. TARUTINA, O. TAS CAU, R. TCACIUC, D. TCHERNIAKHOVSKI, D. TEGOLO, N. T. THAO, D. THOMAS, J. TIFFENBERG, C. TIMMERMANS, W. TKACZYK, C. J. TODEROPEIXOTO, B. TOME, A. TONACHINI, P. TRAVNICEK, D. B. TRIDAPALLI, G. TRISTRAM, E. TROVATO, M. TUEROS, R. ULRICH, M. UNGER, M. URBAN, J. GALICIA, I. VALINO, L. VALORE, A. M. VANDENBERG, J. R. VAZQUEZ, R. A. VAZQUEZ, D. VEBERIC, T. VENTERS, V. VERZI, M. VIDELA, L. VILLASENOR, S. VOROBIOV, L. VOYVODIC, H. WAHLBERG, P. WAHRLICH, O. WAINBERG, D. WARNER, A. A. WATSON, S. WESTERHOFF, B. J. WHELAN, G. WIECZOREK, L. WIENCKE, B. WILCZYNSKA, H. WILCZYNSKI, C. WILLIAMS, T. WINCHEN, M. G. WINNICK, B. WUNDHEILER, T. YAMAMOTO, P. YOUNK, G. YUAN, A. YUSHKOV, E. ZAS, D. ZAVRTANIK, M. ZAVRTANIK, I. ZAW, A. ZEPEDA, M. ZIOLKOWSKI, BLEVE, Carla, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, SETTIMO, MARIANGELA, APC - Astrophysique des Hautes Energies (APC - AHE), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), APC - THEORIE, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut für theoretische Physik, Universität Hamburg (UHH)-Universität Hamburg (UHH), PIERRE AUGER, KVI - Center for Advanced Radiation Technology, Research unit Astroparticle Physics, Guarino, Fausto, D'Urso, Domenico, Valore, Laura, M., Ambrosio, Aramo, Carla, DELLA SELVA, Angelo, C., Moura, Yushkov, Alexey, The Pierre Auger, Collaboration, Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut für theoretische Physik, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut für theoretische Physik, Abraham, J., Abreu, P., Aglietta, M., Aguirre, C., Ahn, E., Allard, D., Allekotte, I., Allen, J., Alvarez-Muñiz, J., Ambrosio, M., Anchordoqui, L., Andringa, S., Anzalone, A., Aramo, C., Arganda, E., Arisaka, K., Arqueros, F., Asch, T., Asorey, H., Assis, P., Aublin, J., Ave, M., Avila, G., Bäcker, T., Badagnani, D., Barber, K., Barbosa, A., Barroso, S., Baughman, B., Bauleo, P., Beatty, J., Beau, T., Becker, B., Becker, K., Bellétoile, A., Bellido, J., Benzvi, S., Berat, C., Bertou, X., Biermann, P., Billoir, P., Blanch-Bigas, O., Blanco, F., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brogueira, P., Brown, W., Bruijn, R., Buchholz, P., Bueno, A., Burton, R., Busca, N., Caballero-Mora, K., Caramete, L., Caruso, R., Castellina, A., Catalano, O., Cazon, L., Cester, R., Chauvin, J., Chiavassa, A., Chinellato, J., Chou, A., Chudoba, J., Chye, J., Clay, R., Colombo, E., Conceição, R., Contreras, F., Cook, H., Coppens, J., Cordier, A., Cotti, U., Coutu, S., Covault, C., Creusot, A., Criss, A., Cronin, J., Curutiu, A., Dagoret-Campagne, S., Dallier, R., Daumiller, K., Dawson, B., de Almeida, R., De Domenico, M., De Donato, C., de Jong, S., De La Vega, G., de Mello Junior, W., de Mello Neto, J., De Mitri, I., de Souza, V., de Vries, K., Decerprit, G., del Peral, L., Deligny, O., Della Selva, A., Delle Fratte, C., Dembinski, H., Di Giulio, C., Diaz, J., Diep, P., Dobrigkeit, C., D'Olivo, J., Dong, P., Dorofeev, A., dos Anjos, J., Dova, M., D'Urso, D., Dutan, I., Duvernois, M., Ebr, J., Engel, R., Erdmann, M., Escobar, C., Etchegoyen, A., Facal San Luis, P., Falcke, H., Farrar, G., Fauth, A., Fazzini, N., Ferrer, F., Ferrero, A., Fick, B., Filevich, A., Filipčič, A., Fleck, I., Fliescher, S., Fracchiolla, C., Fraenkel, E., Fulgione, W., Gamarra, R., Gambetta, S., García, B., García Gámez, D., Garcia-Pinto, D., Garrido, X., Gelmini, G., Gemmeke, H., Ghia, P., Giaccari, U., Giller, M., Glass, H., Goggin, L., Gold, M., Golup, G., Gomez Albarracin, F., Gómez Berisso, M., Gonçalves, P., Gonzalez, D., Gonzalez, J., Góra, D., Gorgi, A., Gouffon, P., Gozzini, S., Grashorn, E., Grebe, S., Grigat, M., Grillo, A., Guardincerri, Y., Guarino, F., Guedes, G., Gutiérrez, J., Hague, J., Halenka, V., Hansen, P., Harari, D., Harmsma, S., Harton, J., Haungs, A., Healy, M., Hebbeker, T., Hebrero, G., Heck, D., Hojvat, C., Holmes, V., Homola, P., Hörandel, J., Horneffer, A., Hrabovský, M., Huege, T., Hussain, M., Iarlori, M., Insolia, A., Ionita, F., Italiano, A., Jiraskova, S., Kaducak, M., Kampert, K., Karova, T., Kasper, P., Kégl, B., Keilhauer, B., Kelley, J., Kemp, E., Kieckhafer, R., Klages, H., Kleifges, M., Kleinfeller, J., Knapik, R., Knapp, J., Koang, D., Krieger, A., Krömer, O., Kruppke-Hansen, D., Kuehn, F., Kuempel, D., Kulbartz, K., Kunka, N., Kusenko, A., La Rosa, G., Lachaud, C., Lago, B., Lautridou, P., Leão, M., Lebrun, D., Lebrun, P., Lee, J., Leigui de Oliveira, M., Lemiere, A., Letessier-Selvon, A., Lhenry-Yvon, I., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M., Macolino, C., Maldera, S., Mandat, D., Mantsch, P., Mariazzi, A., Maris, I., Marquez Falcon, H., Marsella, G., Martello, D., Martínez Bravo, O., Mathes, H., Matthews, J., Matthiae, G., Maurizio, D., Mazur, P., Mcewen, M., Mcneil, R., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Meurer, C., Micheletti, M., Miller, W., Miramonti, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morales, B., Morello, C., Moreno, J., Morris, C., Mostafá, M., Moura, C., Mueller, S., Muller, M., Mussa, R., Navarra, G., Navarro, J., Navas, S., Necesal, P., Nellen, L., Newman-Holmes, C., Nhung, P., Nierstenhoefer, N., Nitz, D., Nosek, D., Nožka, L., Nyklicek, M., Oehlschläger, J., Olinto, A., Oliva, P., Olmos-Gilbaja, V., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Parente, G., Parizot, E., Parlati, S., Parsons, R., Pastor, S., Paul, T., Pavlidou, V., Payet, K., Pech, M., Pȩkala, J., Pepe, I., Perrone, L., Pesce, R., Petermann, E., Petrera, S., Petrinca, P., Petrolini, A., Petrov, Y., Petrovic, J., Pfendner, C., Piegaia, R., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Ponce, V., Pontz, M., Privitera, P., Prouza, M., Quel, E., Rautenberg, J., Ravel, O., Ravignani, D., Redondo, A., Revenu, B., Rezende, F., Ridky, J., Riggi, S., Risse, M., Rivière, C., Rizi, V., Robledo, C., Rodriguez, G., Rodriguez Martino, J., Rodriguez Rojo, J., Rodriguez-Cabo, I., Rodríguez-Frías, M., Ros, G., Rosado, J., Rossler, T., Roth, M., Rouillé-d'Orfeuil, B., Roulet, E., Rovero, A., Salamida, F., Salazar, H., Salina, G., Sánchez, F., Santander, M., Santo, C., Santos, E., Sarazin, F., Sarkar, S., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Schmidt, F., Schmidt, T., Scholten, O., Schoorlemmer, H., Schovancova, J., Schovánek, P., Schroeder, F., Schulte, S., Schüssler, F., Schuster, D., Sciutto, S., Scuderi, M., Segreto, A., Semikoz, D., Settimo, M., Shellard, R., Sidelnik, I., Siffert, B., Sigl, G., Śmiałkowski, A., Šmída, R., Snow, G., Sommers, P., Sorokin, J., Spinka, H., Squartini, R., Strazzeri, E., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A., Sutherland, M., Swain, J., Szadkowski, Z., Tamashiro, A., Tamburro, A., Tarutina, T., Taşcǎu, O., Tcaciuc, R., Tcherniakhovski, D., Tegolo, D., Thao, N., Thomas, D., Ticona, R., Tiffenberg, J., Timmermans, C., Tkaczyk, W., Todero Peixoto, C., Tomé, B., Tonachini, A., Torres, I., Travnicek, P., Tridapalli, D., Tristram, G., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J., Valiño, I., Valore, L., van den Berg, A., Vázquez, J., Vázquez, R., Veberič, D., Velarde, A., Venters, T., Verzi, V., Videla, M., Villaseñor, L., Vorobiov, S., Voyvodic, L., Wahlberg, H., Wahrlich, P., Wainberg, O., Warner, D., Watson, A., Westerhoff, S., Whelan, B., Wieczorek, G., Wiencke, L., Wilczyńska, B., Wilczyński, H., Winchen, T., Winnick, M., Wu, H., Wundheiler, B., Yamamoto, T., Younk, P., Yuan, G., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Ziolkowski, M., J., Abraham, P., Abreu, M., Aglietta, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, J., ALVAREZ MUNIZ, L., Anchordoqui, S., Andringa, T., Anticic, A., Anzalone, C., Aramo, E., Arganda, K., Arisaka, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, T., Backer, D., Badagnani, M., Balzer, K. B., Barber, A. F., Barbosa, S. L. C., Barroso, B., Baughman, P., Bauleo, J., Beatty, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, X., Bertou, P. L., Biermann, P., Billoir, O., BLANCH BIGAS, F., Blanco, M., Blanco, Bleve, Carla, H., Blumer, M., Bohacova, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N., Busca, K. S., CABALLERO MORA, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, F., Contrera, H., Cook, M., Cooper, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., DAGORET CAMPAGNE, R., Dallier, K., Daumiller, B. R., Dawson, R. M., De, Almeida, M., Dedomenico, C., Dedonato, S. J., Dejong, G., Delavega, W. J. M., Demellojunior, J., Demelloneto, DE MITRI, Ivan, V., Desouzam, K. D., Devrie, G., Decerprit, L., Delperal, O., Deligny, A., Dellaselva, C., Dellefratte, H., Dembinski, C., Digiulio, J. C., Diaz, M., Castro, P. N., Diep, C., Dobrigkeit, J. C., Dolivo, P. N., Dong, A., Dorofeev, J. C., Dosanjo, M., Dova, D., Durso, I., Dutan, M. A., Duvernoi, J., Ebr, R., Engel, M., Erdmann, C., O, A., Etchegoyen, P., Facalsanlui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, U., Frohlich, W., Fulgione, R. F., Gamarra, S., Gambetta, B., Garcia, D., Gamez, D., GARCIA PINTO, X., Garrido, G., Gelmini, H., Gemmekeag, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, L., Goggin, M. S., Gold, G., Golup, F., Gomezalbarracin, M., Berisso, P., GONC ALVES, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, M., Grigat, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, V. C., Holme, P., Homola, J. R., Horandel, A., Horneffer, M., Hrabovsky, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, K., Kadija, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Kegl, B., Keilhauer, A., Keivani, J., Kelley, E., Kempo, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Krieger, O., Kromer, D., KRUPPKE HANSEN, F., Kuehn, D., Kuempel, K., Kulbartz, N., Kunka, A., Kusenko, G., Larosa, C., Lachaud, B., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguideoliveira, A., Lemiere, A., LETESSIER SELVON, I., LHENRY YVON, R., Lopez, A., Lopezaguera, K., Louedec, J., Lozanobahilo, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari, H., Falcon, Marsella, Giovanni, Martello, Daniele, O., Bravo, H. J., Mathe, J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewenbp, G., MEDINA TANCO, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, C., Meurer, S., Micanovic, M. I., Micheletti, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnierragaigne, F., Montanet, B., Morale, C., Morello, E., Ba, J. C., Moreno, C., Morri, M., Mostafa, S., Mueller, M., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, P., Nhung, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V., Br, M., Ortiz, N., Pacheco, D., PAKKSELMI DEI, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, S., Parlati, A., Parra, J., Parrisiu, R., Parson, S., Pastor, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, R., Pelayo, I., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, R., Piegaia, T., Pierog, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, B., Revenu, F. A. S., Rezende, J., Ridky, S., Riggi, M., Risse, P., Ristori, C., Riviere, V., Rizi, C., Robledo, G., Rodriguez, J., Rodriguezmartino, J., Rodriguezrojo, I., RODRIGUEZ CABO, M. 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T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Toderopeixoto, B., Tome, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J., Galicia, I., Valino, L., Valore, A. M., Vandenberg, J. R., Vazquez, R. A., Vazquez, D., Veberic, T., Venter, V., Verzi, M., Videla, L., Villasenor, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, A. A., Watson, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., William, T., Winchen, M. G., Winnick, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, and M., Ziolkowski

Subjects
Angstrom exponent, Astronomy, Astrophysics, 01 natural sciences, Auger, CROSS-SECTIONS, COSMIC-RAY SHOWERS, Observatory, DEPENDENCE, High-Energy Cosmic Ray, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Lidar, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], ANGSTROM EXPONENT, Pierre Auger Observatory, Bi-static lidar, ELECTRONS, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, MULTIPLE-SCATTERING, Light emission, Física nuclear, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, LIGHT-EMISSION, Astrophysics - Cosmology and Nongalactic Astrophysics, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Cosmology and Nongalactic Astrophysics (astro-ph.CO), Extensive air shower, FOS: Physical sciences, Cosmic ray, SURFACE DETECTOR, Air fluorescence method, 0103 physical sciences, Extensive air showers, RECONSTRUCTION, Aerosol, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cosmic rays, Aerosols, Calorimeter (particle physics), Atmospheric effect, 010308 nuclear & particles physics, Atmosphere, Física, Astronomy and Astrophysics, NITROGEN, Air shower, Fluorescence Telescopes, 13. Climate action, Experimental High Energy Physics, AEROSSOL
Abstract

The air fluorescence detector of the Pierre Auger Observatory is designed to perforin calorimetric measurements of extensive air showers created by Cosmic rays of above 10(18) eV. To correct these measurements for the effects introduced by atmospheric fluctuations, the Observatory contains a group Of monitoring instruments to record atmospheric conditions across the detector site, ail area exceeding 3000 km(2). The atmospheric data are used extensively in the reconstruction of air showers, and are particularly important for the correct determination of shower energies and the depths of shower maxima. This paper contains a summary of the molecular and aerosol conditions measured at the Pierre Auger Observatory since the start of regular operations in 2004, and includes a discussion of the impact of these measurements oil air shower reconstructions. Between 10(18) and 10(20) eV, the systematic Uncertainties due to all atmospheric effects increase from 4% to 8% in measurements of shower energy, and 4 g cm(-2) to 8 g cm(-2) in measurements of the shower maximum., The successful installation and commissioning of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargüe. We are very grateful to the following agencies and organizations for financial support: Comisión Nacional de Energía Atómica, Fundación Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundaçao de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundaçao de Amparo à Pesquisa do Estado de Sao Paulo (FAPESP), Ministério de Ciência e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB300100801 and KJB100100904, MSMT-CR LA08016, LC527, 1M06002, and MSM0021620859, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Régional Ile-de-France, Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS), Département Sciences de l’Univers (SDU-INSU/CNRS), France; Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden- Württemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium für Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium für Wissenschaft, Forschung und Kunst, Baden-W¨urttemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell’Istruzione,dell’Università e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. 1 P03 D 014 30, N202 090 31/0623, and PAP/218/2006, Poland; Fundaçao para a Ciência e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejería de Educación de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovación, Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract No. DE-AC02-07CH11359, National Science Foundation, Grant No. 0450696, The Grainger Foundation USA; ALFA-EC / HELEN, European Union 6th Framework Program, Grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No. PIEF-GA-2008-220240, and UNESCO.

Published
2010

38. The Northen Site of the Pierre Auger Observatory

Author

J. ABRAHAM, P. ABREU, M. AGLIETTA, E. J. AHN, D. ALLARD, I. ALLEKOTTE, J. ALLEN, J. ALVAREZ MUNIZ, M. AMBROSIO, L. ANCHORDOQUI, S. ANDRINGA, T. ANTICIC, A. ANZALONE, C. ARAMO, E. ARGANDA, K. ARISAKA, F. ARQUEROS, H. ASOREY, P. ASSIS, J. AUBLIN, M. AVE, G. AVILA, T. BACKER, D. BADAGNANI, M. BALZER, K. B. BARBER, A. F. BARBOSA, S. L. C. BARROSO, B. BAUGHMAN, P. BAULEO, J. BEATTY, B. R. BECKER, K. H. BECKER, A. BELLETOILE, J. A. BELLIDO, S. BENZVI, C. BERAT, T. BERGMANN, X. BERTOU, P. L. BIERMANN, P. BILLOIR, O. BLANCH BIGAS, F. BLANCO, M. BLANCO, H. BLUMER, M. BOHACOVA, D. BONCIOLI, C. BONIFAZI, R. BONINO, N. BORODAI, J. BRACK, P. BROGUEIRA, W. C. BROWN, R. BRUIJN, P. BUCHHOLZ, A. BUENO, R. E. BURTON, N. BUSCA, K. S. CABALLERO MORA, L. CARAMETE, R. CARUSO, A. CASTELLINA, O. CATALANO, G. CATALDI, L. CAZON, R. CESTER, J. CHAUVIN, A. CHIAVASSA, J. A. CHINELLATO, A. CHOU, J. CHUDOBA, R. W. CLAY, E. COLOMBO, R. CONCEICAO, F. CONTRERAS, H. COOK, M. COOPER, J. COPPENS, A. CORDIER, U. COTTI, S. COUTU, C. E. COVAULT, A. CREUSOT, A. CRISS, J. CRONIN, A. CURUTIU, S. DAGORET CAMPAGNE, R. DALLIER, K. DAUMILLER, B. R. DAWSON, R. M. DE, ALMEIDA, M. DEDOMENICO, C. DEDONATO, S. J. DEJONG, G. DELAVEGA, W. J. M. DEMELLOJUNIOR, J. DEMELLONETO, V. DESOUZAM, K. D. DEVRIES, G. DECERPRIT, L. DELPERAL, O. DELIGNY, A. DELLASELVA, C. DELLEFRATTE, H. DEMBINSKI, C. DIGIULIO, J. C. DIAZ, M. CASTRO, P. N. DIEP, C. DOBRIGKEIT, J. C. DOLIVO, P. N. DONG, A. DOROFEEV, J. C. DOSANJOS, M. DOVA, D. DURSO, I. DUTAN, M. A. DUVERNOIS, J. EBR, R. ENGEL, M. ERDMANN, C. O, A. ETCHEGOYEN, P. FACALSANLUIS, H. FALCKE, G. FARRAR, A. C. FAUTH, N. FAZZINI, A. FERRERO, B. FICK, A. FILEVICH, A. FILIPCIC, I. FLECK, S. FLIESCHER, C. E. FRACCHIOLLA, E. D. FRAENKEL, U. FROHLICH, W. FULGIONE, R. F. GAMARRA, S. GAMBETTA, B. GARCIA, D. GAMEZ, D. GARCIA PINTO, X. GARRIDO, G. GELMINI, H. GEMMEKEAG, P. L. GHIA, U. GIACCARI, M. GILLER, H. GLASS, L. GOGGIN, M. S. GOLD, G. GOLUP, F. GOMEZALBARRACIN, M. BERISSO, P. GONC ALVES, D. GONZALEZ, J. G. GONZALEZ, D. GORA, A. GORGI, P. GOUFFON, S. R. GOZZINI, E. GRASHORN, S. GREBE, M. GRIGAT, A. F. GRILLO, Y. GUARDINCERRI, F. GUARINO, G. P. GUEDES, J. D. HAGUE, V. HALENKA, P. HANSEN, D. HARARI, S. HARMSMA, J. L. HARTON, A. HAUNGS, T. HEBBEKER, D. HECK, A. E. HERVE, C. HOJVAT, V. C. HOLMES, P. HOMOLA, J. R. HORANDEL, A. HORNEFFER, M. HRABOVSKY, T. HUEGE, M. HUSSAIN, M. IARLORI, A. INSOLIA, F. IONITA, A. ITALIANO, S. JIRASKOVA, K. KADIJA, M. KADUCAK, K. H. KAMPERT, T. KAROVA, P. KASPER, B. KEGL, B. KEILHAUER, A. KEIVANI, J. KELLEY, E. KEMPO, R. M. KIECKHAFER, H. O. KLAGES, M. KLEIFGES, J. KLEINFELLER, R. KNAPIK, J. KNAPP, D. H. KOANG, A. KRIEGER, O. KROMER, D. KRUPPKE HANSEN, F. KUEHN, D. KUEMPEL, K. KULBARTZ, N. KUNKA, A. KUSENKO, G. LAROSA, C. LACHAUD, B. LAGO, P. LAUTRIDOU, M. S. A. B. LEAO, D. LEBRUN, P. LEBRUN, J. LEE, M. A. LEIGUIDEOLIVEIRA, A. LEMIERE, A. LETESSIER SELVON, I. LHENRY YVON, R. LOPEZ, A. LOPEZAGUERA, K. LOUEDEC, J. LOZANOBAHILO, A. LUCERO, M. LUDWIG, H. LYBERIS, M. C. MACCARONE, C. MACOLINO, S. MALDERA, D. MANDAT, P. MANTSCH, A. G. MARIAZZI, V. MARIN, I. C. MARIS, H. FALCON, O. BRAVO, H. J. MATHES, J. MATTHEWS, G. MATTHIAE, D. MAURIZIO, P. O. MAZUR, M. MCEWENBP, G. MEDINA TANCO, M. MELISSAS, D. MELO, E. MENICHETTI, A. MENSHIKOV, C. MEURER, S. MICANOVIC, M. I. MICHELETTI, W. MILLER, L. MIRAMONTI, S. MOLLERACH, M. MONASOR, D. MONNIERRAGAIGNE, F. MONTANET, B. MORALES, C. MORELLO, E. BA, J. C. MORENO, C. MORRIS, M. MOSTAFA, S. MUELLER, M. MULLER, R. MUSSA, G. NAVARRA, J. L. NAVARRO, S. NAVAS, P. NECESAL, L. NELLEN, P. NHUNG, N. NIERSTENHOEFER, D. NITZ, D. NOSEK, L. NOZKA, M. NYKLICEK, J. OEHLSCHLAGER, A. OLINTO, P. OLIVA, V. BR, M. ORTIZ, N. PACHECO, D. PAKKSELMI DEI, M. PALATKA, J. PALLOTTA, N. PALMIERI, G. PARENTE, E. PARIZOT, S. PARLATI, A. PARRA, J. PARRISIUS, R. PARSONS, S. PASTOR, T. PAUL, V. PAVLIDOU, K. PAYET, M. PECH, J. PEKALA, R. PELAYO, I. PEPE, R. PESCE, E. PETERMANN, S. PETRERA, P. PETRINCA, A. PETROLINI, Y. PETROV, J. PETROVIC, C. PFENDNER, R. PIEGAIA, T. PIEROG, M. PIMENTA, V. PIRRONELLO, M. PLATINO, V. H. PONCE, M. PONTZ, P. PRIVITERA, M. PROUZA, E. J. QUEL, J. RAUTENBERG, O. RAVEL, D. RAVIGNANI, A. REDONDO, B. REVENU, F. A. S. REZENDE, J. RIDKY, S. RIGGI, M. RISSE, P. RISTORI, C. RIVIERE, V. RIZI, C. ROBLEDO, G. RODRIGUEZ, J. RODRIGUEZMARTINO, J. RODRIGUEZROJO, I. RODRIGUEZ CABO, M. D. RODRIGUEZ FRIAS, G. ROS, J. ROSADO, T. ROSSLER, M. ROTH, B. ROUILLE DORFEUIL, E. ROULET, A. C. ROVERO, F. SALAMIDA, H. SALAZAR, G. SALINA, F. SANCHEZ, M. SANTANDER, C. E. SANTO, E. SANTO, E. M. SANTOS, F. SARAZIN, S. SARKAR, R. SATO, N. SCHARF, V. SCHERINI, H. SCHIELER, P. SCHIFFER, A. SCHMIDT, F. SCHMIDT, T. SCHMIDT, O. SCHOLTEN, H. SCHOORLEMMER, J. SCHOVANCOVA, P. SCHOVANEK, F. SCHROEDER, S. SCHULTE, F. SCHUSSLER, D. SCHUSTER, S. J. SCIUTTO, M. SCUDERI, A. SEGRETO, D. SEMIKOZ, R. SHELLARD, I. SIDELNIK, B. B. SIFFERT, G. SIGL, A. SMIAKOWSKI, R. SMIDA, G. R. SNOW, P. SOMMERS, J. SOROKIN, H. SPINKA, R. SQUARTINI, J. STASIELAK, M. STEPHAN, E. STRAZZERI, A. STUTZ, F. SUAREZ, T. SUOMIJARVI, A. D. SUPANITSKY, T. SUSA, M. S. SUTHERLAND, J. SWAIN, Z. SZADKOWSKI, A. TAMASHIRO, A. TAMBURRO, A. TAPIA, T. TARUTINA, O. TAS CAU, R. TCACIUC, D. TCHERNIAKHOVSKI, D. TEGOLO, N. T. THAO, D. THOMAS, J. TIFFENBERG, C. TIMMERMANS, W. TKACZYK, C. J. TODEROPEIXOTO, B. TOME, A. TONACHINI, P. TRAVNICEK, D. B. TRIDAPALLI, G. TRISTRAM, E. TROVATO, M. TUEROS, R. ULRICH, M. UNGER, M. URBAN, J. GALICIA, I. VALINO, L. VALORE, A. M. VANDENBERG, J. R. VAZQUEZ, R. A. VAZQUEZ, D. VEBERIC, T. VENTERS, V. VERZI, M. VIDELA, L. VILLASENOR, S. VOROBIOV, L. VOYVODIC, H. WAHLBERG, P. WAHRLICH, O. WAINBERG, D. WARNER, A. A. WATSON, S. WESTERHOFF, B. J. WHELAN, G. WIECZOREK, L. WIENCKE, B. WILCZYNSKA, H. WILCZYNSKI, C. WILLIAMS, T. WINCHEN, M. G. WINNICK, B. WUNDHEILER, T. YAMAMOTO, P. YOUNK, G. YUAN, A. YUSHKOV, E. ZAS, D. ZAVRTANIK, M. ZAVRTANIK, I. ZAW, A. ZEPEDA, M. ZIOLKOWSKI, BLEVE, Carla, COLUCCIA, MARIA RITA, DE MITRI, Ivan, MARSELLA, GIOVANNI, MARTELLO, Daniele, PERRONE, Lorenzo, SETTIMO, MARIANGELA, J., Abraham, P., Abreu, M., Aglietta, E. J., Ahn, D., Allard, I., Allekotte, J., Allen, J., ALVAREZ MUNIZ, M., Ambrosio, L., Anchordoqui, S., Andringa, T., Anticic, A., Anzalone, C., Aramo, E., Arganda, K., Arisaka, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, G., Avila, T., Backer, D., Badagnani, M., Balzer, K. B., Barber, A. F., Barbosa, S. L. C., Barroso, B., Baughman, P., Bauleo, J., Beatty, B. R., Becker, K. H., Becker, A., Belletoile, J. A., Bellido, S., Benzvi, C., Berat, T., Bergmann, X., Bertou, P. L., Biermann, P., Billoir, O., BLANCH BIGAS, F., Blanco, M., Blanco, Bleve, Carla, H., Blumer, M., Bohacova, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, P., Brogueira, W. C., Brown, R., Bruijn, P., Buchholz, A., Bueno, R. E., Burton, N., Busca, K. S., CABALLERO MORA, L., Caramete, R., Caruso, A., Castellina, O., Catalano, G., Cataldi, L., Cazon, R., Cester, J., Chauvin, A., Chiavassa, J. A., Chinellato, A., Chou, J., Chudoba, R. W., Clay, E., Colombo, Coluccia, MARIA RITA, R., Conceicao, F., Contrera, H., Cook, M., Cooper, J., Coppen, A., Cordier, U., Cotti, S., Coutu, C. E., Covault, A., Creusot, A., Cri, J., Cronin, A., Curutiu, S., DAGORET CAMPAGNE, R., Dallier, K., Daumiller, B. R., Dawson, R. M., De, Almeida, M., Dedomenico, C., Dedonato, S. J., Dejong, G., Delavega, W. J. M., Demellojunior, J., Demelloneto, DE MITRI, Ivan, V., Desouzam, K. D., Devrie, G., Decerprit, L., Delperal, O., Deligny, A., Dellaselva, C., Dellefratte, H., Dembinski, C., Digiulio, J. C., Diaz, M., Castro, P. N., Diep, C., Dobrigkeit, J. C., Dolivo, P. N., Dong, A., Dorofeev, J. C., Dosanjo, M., Dova, D., Durso, I., Dutan, M. A., Duvernoi, J., Ebr, R., Engel, M., Erdmann, C., O, A., Etchegoyen, P., Facalsanlui, H., Falcke, G., Farrar, A. C., Fauth, N., Fazzini, A., Ferrero, B., Fick, A., Filevich, A., Filipcic, I., Fleck, S., Fliescher, C. E., Fracchiolla, E. D., Fraenkel, U., Frohlich, W., Fulgione, R. F., Gamarra, S., Gambetta, B., Garcia, D., Gamez, D., GARCIA PINTO, X., Garrido, G., Gelmini, H., Gemmekeag, P. L., Ghia, U., Giaccari, M., Giller, H., Gla, L., Goggin, M. S., Gold, G., Golup, F., Gomezalbarracin, M., Berisso, P., GONC ALVES, D., Gonzalez, J. G., Gonzalez, D., Gora, A., Gorgi, P., Gouffon, S. R., Gozzini, E., Grashorn, S., Grebe, M., Grigat, A. F., Grillo, Y., Guardincerri, F., Guarino, G. P., Guede, J. D., Hague, V., Halenka, P., Hansen, D., Harari, S., Harmsma, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, A. E., Herve, C., Hojvat, V. C., Holme, P., Homola, J. R., Horandel, A., Horneffer, M., Hrabovsky, T., Huege, M., Hussain, M., Iarlori, A., Insolia, F., Ionita, A., Italiano, S., Jiraskova, K., Kadija, M., Kaducak, K. H., Kampert, T., Karova, P., Kasper, B., Kegl, B., Keilhauer, A., Keivani, J., Kelley, E., Kempo, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Knapik, J., Knapp, D. H., Koang, A., Krieger, O., Kromer, D., KRUPPKE HANSEN, F., Kuehn, D., Kuempel, K., Kulbartz, N., Kunka, A., Kusenko, G., Larosa, C., Lachaud, B., Lago, P., Lautridou, M. S. A. B., Leao, D., Lebrun, P., Lebrun, J., Lee, M. A., Leiguideoliveira, A., Lemiere, A., LETESSIER SELVON, I., LHENRY YVON, R., Lopez, A., Lopezaguera, K., Louedec, J., Lozanobahilo, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, C., Macolino, S., Maldera, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari, H., Falcon, Marsella, Giovanni, Martello, Daniele, O., Bravo, H. J., Mathe, J., Matthew, G., Matthiae, D., Maurizio, P. O., Mazur, M., Mcewenbp, G., MEDINA TANCO, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, C., Meurer, S., Micanovic, M. I., Micheletti, W., Miller, L., Miramonti, S., Mollerach, M., Monasor, D., Monnierragaigne, F., Montanet, B., Morale, C., Morello, E., Ba, J. C., Moreno, C., Morri, M., Mostafa, S., Mueller, M., Muller, R., Mussa, G., Navarra, J. L., Navarro, S., Nava, P., Necesal, L., Nellen, P., Nhung, N., Nierstenhoefer, D., Nitz, D., Nosek, L., Nozka, M., Nyklicek, J., Oehlschlager, A., Olinto, P., Oliva, V., Br, M., Ortiz, N., Pacheco, D., PAKKSELMI DEI, M., Palatka, J., Pallotta, N., Palmieri, G., Parente, E., Parizot, S., Parlati, A., Parra, J., Parrisiu, R., Parson, S., Pastor, T., Paul, V., Pavlidou, K., Payet, M., Pech, J., Pekala, R., Pelayo, I., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, S., Petrera, P., Petrinca, A., Petrolini, Y., Petrov, J., Petrovic, C., Pfendner, R., Piegaia, T., Pierog, M., Pimenta, V., Pirronello, M., Platino, V. H., Ponce, M., Pontz, P., Privitera, M., Prouza, E. J., Quel, J., Rautenberg, O., Ravel, D., Ravignani, A., Redondo, B., Revenu, F. A. S., Rezende, J., Ridky, S., Riggi, M., Risse, P., Ristori, C., Riviere, V., Rizi, C., Robledo, G., Rodriguez, J., Rodriguezmartino, J., Rodriguezrojo, I., RODRIGUEZ CABO, M. D., RODRIGUEZ FRIAS, G., Ro, J., Rosado, T., Rossler, M., Roth, B., ROUILLE DORFEUIL, E., Roulet, A. C., Rovero, F., Salamida, H., Salazar, G., Salina, F., Sanchez, M., Santander, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, S., Sarkar, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, F., Schmidt, T., Schmidt, O., Scholten, H., Schoorlemmer, J., Schovancova, P., Schovanek, F., Schroeder, S., Schulte, F., Schussler, D., Schuster, S. J., Sciutto, M., Scuderi, A., Segreto, D., Semikoz, Settimo, Mariangela, R., Shellard, I., Sidelnik, B. B., Siffert, G., Sigl, A., Smiakowski, R., Smida, G. R., Snow, P., Sommer, J., Sorokin, H., Spinka, R., Squartini, J., Stasielak, M., Stephan, E., Strazzeri, A., Stutz, F., Suarez, T., Suomijarvi, A. D., Supanitsky, T., Susa, M. S., Sutherland, J., Swain, Z., Szadkowski, A., Tamashiro, A., Tamburro, A., Tapia, T., Tarutina, O., TAS CAU, R., Tcaciuc, D., Tcherniakhovski, D., Tegolo, N. T., Thao, D., Thoma, J., Tiffenberg, C., Timmerman, W., Tkaczyk, C. J., Toderopeixoto, B., Tome, A., Tonachini, P., Travnicek, D. B., Tridapalli, G., Tristram, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J., Galicia, I., Valino, L., Valore, A. M., Vandenberg, J. R., Vazquez, R. A., Vazquez, D., Veberic, T., Venter, V., Verzi, M., Videla, L., Villasenor, S., Vorobiov, L., Voyvodic, H., Wahlberg, P., Wahrlich, O., Wainberg, D., Warner, A. A., Watson, S., Westerhoff, B. J., Whelan, G., Wieczorek, L., Wiencke, B., Wilczynska, H., Wilczynski, C., William, T., Winchen, M. G., Winnick, B., Wundheiler, T., Yamamoto, P., Younk, G., Yuan, A., Yushkov, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, M., Ziolkowski, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), APC - Astrophysique des Hautes Energies (APC - AHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), PIERRE AUGER, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Alma Mater Studiorum Università di Bologna [Bologna] (UNIBO), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Dipartimento di Astronomia, Universita degli Studi di Bologna, Università di Bologna [Bologna] (UNIBO)-Università di Bologna [Bologna] (UNIBO), Guarino, Fausto, D'Urso, Domenico, Valore, Laura, Aramo, Carla, DELLA SELVA, Angelo, Yushkov, Alexey, and The Pierre Auger, Collaboration

Subjects
Pierre Auger Observatory, Physics, high energy, Particle composition, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Astronomy, Cosmic ray, Cosmic Ray, 01 natural sciences, Auger, North-Site of the Pierre Auger Observatory, Auger Observatory, Observatory, 0103 physical sciences, Energy spectrum, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Neutrino, High-Energy Cosmic Ray, 010306 general physics
Abstract

Part of Focus on High Energy Cosmic Rays - see paper for full liste of authors; The Pierre Auger Observatory is an international facility dedicated to the full-sky study of the highest-energy cosmic rays. The southern site of the Auger Observatory was completed in June 2008. Data collected since January 2004 have yielded important information on the energy spectrum, the primary particle composition, the fluxes of photons and neutrinos and on the anisotropic distribution of the arrival directions of the most energetic particles. On this basis, the scientific motivation for the northern Auger Observatory site in Colorado, USA, is discussed. The overall layout, the key components and the expected performance of this 20 000 km2 hybrid observatory comprised of an array of 4400 surface detectors and 39 fluorescence telescopes are described.

Published
2010

39. Assimilation of lidar signals: application to aerosol forecasting in the Mediterranean Basin

Author

Y. Wang, K. N. Sartelet, M. Bocquet, P. Chazette, M. Sicard, G. D'Amico, J. F. Léon, L. Alados-Arboledas, A. Amodeo, P. Augustin, J. Bach, L. Belegante, I. Binietoglou, X. Bush, A. Comerón, H. Delbarre, D. García-Vízcaino, J. L. Guerrero-Rascado, M. Hervo, M. Iarlori, P. Kokkalis, D. Lange, F. Molero, N. Montoux, A. Muñoz, C. Muñoz, D. Nicolae, A. Papayannis, G. Pappalardo, J. Preissler, V. Rizi, F. Rocadenbosch, K. Sellegri, F. Wagner, and F. Dulac

Abstract

This paper presents a new application of assimilating lidar signals to aerosol forecasting. It aims at investigating the impact of a ground-based lidar network on analysis and short-term forecasts of aerosols through a case study in the Mediterranean. To do so, we employ a data assimilation (DA) algorithm based on the optimal interpolation method developed in the chemistry transport model (CTM) {Polair3D of the air quality modelling platform POLYPHEMUS. We assimilate hourly-averaged normalised range corrected lidar signals (PR2) retrieved from a 72 h period of intensive and continuous measurements performed in July 2012 by ground-based lidar systems of the European Aerosol Research Lidar Network (EARLINET) integrated into the Aerosols, Clouds, and Trace gases Research InfraStructure Network (ACTRIS) and an additional system in Corsica deployed in the framework of the pre-ChArMEx (Chemistry-Aerosol Mediterranean Experiment)/TRAQA (TRAnsport à longue distance et Qualité de l'Air) campaign. This lidar campaign was dedicated to demonstrating the potential operationality of a research network like EARLINET and the potential usefulness of assimilation of lidar signals to aerosol forecasts. Particles with an aerodynamic diameter lower than 2.5 μm (PM2.5) and those with an aerodynamic diameter higher than 2.5 μm but lower than 10 μm (PM2.5–10) are analysed separately using the lidar observations at each DA step. First, we study the spatial and temporal influences of the assimilation of lidar signals on aerosol forecasting. We conduct sensitivity studies on algorithmic parameters, e.g. the horizontal correlation length (Lh) used in the background error covariance matrix (50 km, 100 km or 200 km), the altitudes at which DA is performed (0.75–3.5 km, 1.0–3.5 km or 1.5–3.5 km a.g.l.) and the assimilation period length (12 h or 24 h). We find that DA with Lh = 100 km and assimilation from 1.0 to 3.5 km a.g.l. during a 12 h assimilation period length leads to the best scores for PM10 and PM2.5 during the forecast period with reference to available measurements from surface networks. Secondly, the aerosol simulation results without and with lidar DA using the optimal parameters (Lh

Published
2014

40. Earlinet for lomg term abservations of aerosol over Europe

Author

PAPPALARDO, G, J. BÖSENBERG, A. AMODEO, A. ANSMANN, A. APITULEY, L, A. ARBOLEDAS, D. BALIS, C. BÖCKMANN, A. CHAIKOVSKY, A. COMERON, G. D. AMICO, V. FREUDENTHALER, I. GRIGOGOV, G. HANSEN, H. LINNÈ, I. MATTIS, L. MONA, D. MÜLLER, V. MITEV, D. NICOLAE, A. PAPAYANNIS, A. PIETRUCZUK, M. PUJADAS, J. P. PUTAUD, F. RAVETTA, V. RIZI, V. SIMEONOV, N. SPINELLI, T. TRICKL, U. WANDINGER, AND M. WIEGNER, PERRONE, Maria Rita, the Organizing Commitee of the 24th International Laser Radar Conference : M.Hardesty, S. Mayor, C. Senff, S.Spuler, P. Weibring, S. Tucker, A. Brewer, B. Morley, Pappalardo, G, J., Bösenberg, A., Amodeo, A., Ansmann, A., Apituley, L, A., Arboleda, D., Bali, C., Böckmann, A., Chaikovsky, A., Comeron, G. D., Amico, V., Freudenthaler, I., Grigogov, G., Hansen, H., Linnè, I., Matti, L., Mona, D., Müller, V., Mitev, D., Nicolae, A., Papayanni, Perrone, Maria Rita, A., Pietruczuk, M., Pujada, J. P., Putaud, F., Ravetta, V., Rizi, V., Simeonov, N., Spinelli, T., Trickl, U., Wandinger, and AND M., Wiegner

Subjects
EArlinet, aerosol, lidar
Published
2008

41. First systematic observations of Saharan dust over Europe during EARLINET (2000-2002): statistical analysis and results

Author

PAPAYANNIS A, V. AMIRIDIS, G. TSAKNAKIS, D. BALIS, J. BÖSENBERG, A. CHAIKOVSKI, I. GRIGOROV, I. MATTIS, V. MITEV, D. MÜLLER, MONA L, S. NICKOVIC, C. PÉREZ, A. PIETRUCZUK, G. PISANI, F. RAVETTA, V. RIZI, M. SICARD, T. TRICKL, AND M. WIE, DE TOMASI, Ferdinando, Lucio Ubertini, Piergiorgio Manciola, Stefano Casadei, Salvatore Grimaldi, Papayannis, A, V., Amiridi, G., Tsaknaki, D., Bali, J., Bösenberg, A., Chaikovski, DE TOMASI, Ferdinando, I., Grigorov, I., Matti, V., Mitev, D., Müller, Mona, L, S., Nickovic, C., Pérez, A., Pietruczuk, G., Pisani, F., Ravetta, V., Rizi, M., Sicard, T., Trickl, and AND M., Wie

Published
2007

42. Measurement of Aerosols at the Pierre Auger Observatory

Author

S. Y. BENZVI, F. ARQUEROS, R. CESTER, M. CHIOSSO, B. M. CONNOLLY, B. FICK, A. FILIPˇC IˇC, B. GARC´IA, A. GRILLO, M. HORVAT, M. IARLORI, C. MACOLINO, M. MALEK, J. MATTHEWS, J. A. J. MATTHEWS, D. MELO, R. MEYHANDAN, M. MICHELETTI, M. MONASOR, M. MOSTAF´A, R. MUSSA, J. PALLOTTA, S. PETRERA, M. PROUZA, V. RIZI, M. ROBERTS, J. R. RODRIGUEZ ROJO, D. RODR´I GUEZ FR´I AS, F. SALAMIDA, M. SANTANDER, G. SEQUEIROS, P. SOMMERS, A. TONACHINI, D. VERBERIˇC, E. VISBAL, S. WESTERHOFF, L. WIENCKE, D. ZAVRTANIK, M. ZAVRTANIK, FOR THE PIERRE AUGER COLLABORATION, GUARINO, FAUSTO, VALORE, LAURA, S. Y., Benzvi, F., Arquero, R., Cester, M., Chiosso, B. M., Connolly, B., Fick, A., FILIPˇC IˇC, B., Garc´ia, A., Grillo, Guarino, Fausto, M., Horvat, M., Iarlori, C., Macolino, M., Malek, J., Matthew, J. A. J., Matthew, D., Melo, R., Meyhandan, M., Micheletti, M., Monasor, M., Mostaf´a, R., Mussa, J., Pallotta, S., Petrera, M., Prouza, V., Rizi, M., Robert, J. R., RODRIGUEZ ROJO, GUEZ FR´I AS, D. RODR´I., F., Salamida, M., Santander, G., Sequeiro, P., Sommer, A., Tonachini, Valore, Laura, D., Verberiˇc, E., Visbal, S., Westerhoff, L., Wiencke, D., Zavrtanik, M., Zavrtanik, and FOR THE PIERRE AUGER, Collaboration

Subjects
Raggi cosmici, Aerosol, Auger
Abstract

The air fluorescence detectors (FDs) of the Pierre Auger Observatory are vital for the determination of the air shower energy scale. To compensate for variations in atmospheric conditions that affect the energy measurement, the Observatory operates an array of monitoring instruments to record hourly atmospheric conditions across the detector site, an area exceeding 3,000 square km. This paper presents results from four instruments used to characterize the aerosol component of the atmosphere: the Central Laser Facility (CLF), which provides the FDs with calibrated laser shots; the scanning backscatter lidars, which operate at three FD sites; the Aerosol Phase Function monitors (APFs), which measure the aerosol scattering cross section at two FD locations; and the Horizontal Attenuation Monitor (HAM), which measures the wavelength dependence of aerosol attenuation.

Published
2007

43. AUGER FD: Detector response to simulated showers and real event topologies

Author

J. Abraham, M. Aglietta, I. C. Aguirre, M. Albrow, D. Allard, I. Allekotte, P. Allison, J. Alvarez Muniz, M. G. do Amaral, M. Ambrosio, L. Anchordoqui, R. Andrews, M. Anguiano, J. C. dos Anjos, C. Aramo, S. Argiro, K. Arisaka, J. C. Arteaga, S. Atulugama, M. Ave, G. Avila, R. Baggio, X. Baib, A. F. Barbosa, H. M. J. Barbosa, D. Barnhill, S. L. C. Barroso, P. Bauleo, J. Beatty, T. Beau, K. H. Becker, J. A. Bellido, P. Bello, T. Bergmann, E. Berman, X. Bertou, P. Biermann, P. Billoir, R. Biral, H. Bluemer, M. Bohacova, E. Bollmann, C. Bonifazi, M. Borat, A. Boselli, J. Brack, J. M. Brunet, H. Bui Duc, V. Cabrera, D. V. Camin, J. N. Capdevielle, A. Carreno, N. Cartiglian, R. Caruso, L. A. de Carvalhos, S. Casanovabk, E. Casimiro, A. Castellina, J. Castrol, P. W. Cattaneo, L. Cazon, R. Cester, N. Chavez, D. Cheam, A. Chiavassa, J. A. Chinellato, M. Chiosso, A. Chou, J. Chye, A. Cillis, B. Civit, D. Claes, P. D. J. Clark, R. W. Clay, F. Cohen, A. Cordero, A. Cordier, E. Cormier, J. Cotzom, U. Cotti, S. Coutu, C. E. Covaul, A. Creusot, J. W. Cronin, M. Cuautl, S. Dagoret Campagne, T. Dang Quang, P. Da Silva, J. Darling, P. Darriulat, K. Daumiller, B. R. Dawson, L. de Bruijn, A. De Capoa, M. A. L. de Oliveiras, V. de Souza, A. Della Selva, O. Deligny, J. C. Diaz, C. Dobrigkeit, J. C. D’Olivo, A. Dorofe, M. T. Dova, A. Dyeam, M. A. DuVernois, R. Engel, L. N. Epele, P. Eschstruth, C. O. Escobar, A. Etchegoyen, P. Facal San Luis, A. C. Fauth, N. Fazzini, A. Fernandez, A. M. J. Ferrero, B. Fick, A. Filevich, A. Filipcicat, R. Fonteaw, W. Fulgione, E. Gamez, B. Garcia, C. A. Garcia, H. Geenen, H. Gemmeke, C. Germain Renaud, P. L. Ghia, K. Gibbs, M. Giller, J. Gitto, H. Glass, M. Gomez Berissof, P. F. Gomez Vitale, J. Gonzalez, D. Gora, A. Goodwin, P. Gouffon, V. Grassi, A. F. Grillo C. Grunfeld, J. Grygar, F. Guarino, G. Guedes, C. Guerard, R. Gumbsheimer, J. L. Harton, F. Hasenbalg, D. Heck, J. M. Hernandez, D. Hoffer, C. Hojvat, P. Homola, M. Horvat, M. Hrabovsky, A. Insolia, S. Jaminion, Y. Jeronimo, L. Jiang, M. Kaduca, K. H. Kampert, B. Keilhauerx, E. Kemps, H. Klages, M. Kleifges, J. Kleinfeller, J. Knapp, A. Kopmann, N. Kunka, M. Kutschera, C. Lachaud, M. Lapolla, A. Letessier Selvon, I. Lhenry Yvon, J. Lloyd Evans, R. Lopez, A. Lopez Aguera, M. Lucano, R. Luna, Y. Mab, M. E. Mancenido, P. F. Manfredi, L. Manhae, P. Mantsch, A. G. Mariazzi, M. J. Markus, G. Martin, O. Martineau, J. Martinez, N. Martineza, O. Martınez, H. J. Mathes, J. A. J. Matthews, J. Matthewsa, G. Matthiae, E. Marques, P. Matussek, G. Maurin, D. Maurizio, P. Mazur, T. McCaulely, M. McEwen, R. R. McNeil, C. Medina, M. C. Medina, G. Medina Tanco, D. Melo, M. Melocchi, E. Menichetti, A. Menshikova, F. Meyer, R. Meyhandan, J. C. Mez, G. Miele, W. Miller, M. Mohammed, D. Monnier Ragaigne, C. Morello, E. Moreno, M. Mostafa, R. Mussa, H. Nassin, G. Navarra, L. Nellena, F. Nerling, C. Newman Holmes, D. Nicotra, S. Nigro, D. Nitz, H. Nogim, D. Nosek, M. Nunezl, T. Ohnuki, A. Olinto, S. Ostaptchenko, M. Palatka, G. Parente, E. Parizot, E. H. Pasaye, N. Pastrone, M. Patel, T. Paulk, I. Pedraza, J. Pekala, R. Pelay, I. M. Pepeb, A. P!erez Lorenza, N. Peshmana, S. Petrera, P. Petrinca, D. Pham Ngoc, P. Pham Trung, T. Pierog, O. Pisanti, N. Playez, E. Ponce, T. A. Porter, L. Prado Junior, P. Privitera, M. Prouza, C. L. Pryke, J. B. Raferta, G. Raia, S. Ranchon, L. Ratti, D. Ravignani, V. Re, H. C. Reis, S. Reucrof, B. Revenueu, M. Richter, J. Ridkya, A. Risi, M. Risse, V. Rizi, M. D. Roberts, C. Robled, G. Rodriguez, J. Rodriquezaw, J. Rodriquez Martinoab, S. Rom!anl, L. Rosa, M. Roth, A. C. Rovero, H. Salaza, G. Salina, F. Sanchez, M. Santander, L. G. dos Santos, R. Sato, P. Schovaneka, V. Scherini, S. J. Sciutto, G. Sequeiros Haddada, R. C. Shellard, E. Shibuya, F. V. Siguas, W. Slater, N. Smetniansky De Grande, K. Smith, G. R. Snowal, P. Sommers, C. Song, H. Spink, F. Suarez, T. Suomijarvi, D. Supanitsky, J. Swaink, Z. Szadkowski, A. Tamashiro, G. J. Thornton, T. Thou, R. Ticon, W. Tkaczyk, C. J. Todero Peixoto, A. Tripathio, G. Tristram, M. Trombleya, D. Tscherniakhovski, P. Tuckey, V. Tunnicliffe, M. Urban, C. Uribe Estrada, J. F. Valdes, A. Varga, C. Vargas, R. Vazquez, D. Veberic, A. Veiga, A. Velard, F. Vernottebe, V. Verzi, M. Videla, C. Vigorito, L. M. Villasenorai, M. Vlceka, L. Voyvodi, T. Vo Vanap, T. Waldenmaier, P. Walker, D. Warner, A. A. Watson, C.h. Wiebusch, G. Wieczore, B. Wilczynska, H. Wilczynski, N. R. Wild, T. Yamamoto, E. Zas, D. Zavrtanik, M. Zavrtanik, A. Zeped, C. Zhang, Q. Z.h.u., PERRONE, Lorenzo, J., Abraham, M., Aglietta, I. C., Aguirre, M., Albrow, D., Allard, I., Allekotte, P., Allison, J., Alvarez Muniz, M. G., do Amaral, M., Ambrosio, L., Anchordoqui, R., Andrew, M., Anguiano, J. C., dos Anjo, C., Aramo, S., Argiro, K., Arisaka, J. C., Arteaga, S., Atulugama, M., Ave, G., Avila, R., Baggio, X., Baib, A. F., Barbosa, H. M. J., Barbosa, D., Barnhill, S. L. C., Barroso, P., Bauleo, J., Beatty, T., Beau, K. H., Becker, J. A., Bellido, P., Bello, T., Bergmann, E., Berman, X., Bertou, P., Biermann, P., Billoir, R., Biral, H., Bluemer, M., Bohacova, E., Bollmann, C., Bonifazi, M., Borat, A., Boselli, J., Brack, J. M., Brunet, H., Bui Duc, V., Cabrera, D. V., Camin, J. N., Capdevielle, A., Carreno, N., Cartiglian, R., Caruso, L. A., de Carvalho, S., Casanovabk, E., Casimiro, A., Castellina, J., Castrol, P. W., Cattaneo, L., Cazon, R., Cester, N., Chavez, D., Cheam, A., Chiavassa, J. A., Chinellato, M., Chiosso, A., Chou, J., Chye, A., Cilli, B., Civit, D., Clae, P. D. J., Clark, R. W., Clay, F., Cohen, A., Cordero, A., Cordier, E., Cormier, J., Cotzom, U., Cotti, S., Coutu, C. E., Covaul, A., Creusot, J. W., Cronin, M., Cuautl, S., Dagoret Campagne, T., Dang Quang, P., Da Silva, J., Darling, P., Darriulat, K., Daumiller, B. R., Dawson, L., de Bruijn, A., De Capoa, M. A. L., de Oliveira, V., de Souza, A., Della Selva, O., Deligny, J. C., Diaz, C., Dobrigkeit, J. C., D’Olivo, A., Dorofe, M. T., Dova, A., Dyeam, M. A., Duvernoi, R., Engel, L. N., Epele, P., Eschstruth, C. O., Escobar, A., Etchegoyen, P., Facal San Lui, A. C., Fauth, N., Fazzini, A., Fernandez, A. M. J., Ferrero, B., Fick, A., Filevich, A., Filipcicat, R., Fonteaw, W., Fulgione, E., Gamez, B., Garcia, C. A., Garcia, H., Geenen, H., Gemmeke, C., Germain Renaud, P. L., Ghia, K., Gibb, M., Giller, J., Gitto, H., Gla, M., Gomez Berissof, P. F., Gomez Vitale, J., Gonzalez, D., Gora, A., Goodwin, P., Gouffon, V., Grassi, A. F. Grillo C., Grunfeld, J., Grygar, F., Guarino, G., Guede, C., Guerard, R., Gumbsheimer, J. L., Harton, F., Hasenbalg, D., Heck, J. M., Hernandez, D., Hoffer, C., Hojvat, P., Homola, M., Horvat, M., Hrabovsky, A., Insolia, S., Jaminion, Y., Jeronimo, L., Jiang, M., Kaduca, K. H., Kampert, B., Keilhauerx, E., Kemp, H., Klage, M., Kleifge, J., Kleinfeller, J., Knapp, A., Kopmann, N., Kunka, M., Kutschera, C., Lachaud, M., Lapolla, A., Letessier Selvon, I., Lhenry Yvon, J., Lloyd Evan, R., Lopez, A., Lopez Aguera, M., Lucano, R., Luna, Y., Mab, M. E., Mancenido, P. F., Manfredi, L., Manhae, P., Mantsch, A. G., Mariazzi, M. J., Marku, G., Martin, O., Martineau, J., Martinez, N., Martineza, O., Martınez, H. J., Mathe, J. A. J., Matthew, J., Matthewsa, G., Matthiae, E., Marque, P., Matussek, G., Maurin, D., Maurizio, P., Mazur, T., Mccaulely, M., Mcewen, R. R., Mcneil, C., Medina, M. C., Medina, G., Medina Tanco, D., Melo, M., Melocchi, E., Menichetti, A., Menshikova, F., Meyer, R., Meyhandan, J. C., Mez, G., Miele, W., Miller, M., Mohammed, D., Monnier Ragaigne, C., Morello, E., Moreno, M., Mostafa, R., Mussa, H., Nassin, G., Navarra, L., Nellena, F., Nerling, C., Newman Holme, D., Nicotra, S., Nigro, D., Nitz, H., Nogim, D., Nosek, M., Nunezl, T., Ohnuki, A., Olinto, S., Ostaptchenko, M., Palatka, G., Parente, E., Parizot, E. H., Pasaye, N., Pastrone, M., Patel, T., Paulk, I., Pedraza, J., Pekala, R., Pelay, I. M., Pepeb, A., P!erez Lorenza, Perrone, Lorenzo, N., Peshmana, S., Petrera, P., Petrinca, D., Pham Ngoc, P., Pham Trung, T., Pierog, O., Pisanti, N., Playez, E., Ponce, T. A., Porter, L., Prado Junior, P., Privitera, M., Prouza, C. L., Pryke, J. B., Raferta, G., Raia, S., Ranchon, L., Ratti, D., Ravignani, V., Re, H. C., Rei, S., Reucrof, B., Revenueu, M., Richter, J., Ridkya, A., Risi, M., Risse, V., Rizi, M. D., Robert, C., Robled, G., Rodriguez, J., Rodriquezaw, J., Rodriquez Martinoab, S., Rom!anl, L., Rosa, M., Roth, A. C., Rovero, H., Salaza, G., Salina, F., Sanchez, M., Santander, L. G., dos Santo, R., Sato, P., Schovaneka, V., Scherini, S. J., Sciutto, G., Sequeiros Haddada, R. C., Shellard, E., Shibuya, F. V., Sigua, W., Slater, N., Smetniansky De Grande, K., Smith, G. R., Snowal, P., Sommer, C., Song, H., Spink, F., Suarez, T., Suomijarvi, D., Supanitsky, J., Swaink, Z., Szadkowski, A., Tamashiro, G. J., Thornton, T., Thou, R., Ticon, W., Tkaczyk, C. J., Todero Peixoto, A., Tripathio, G., Tristram, M., Trombleya, D., Tscherniakhovski, P., Tuckey, V., Tunnicliffe, M., Urban, C., Uribe Estrada, J. F., Valde, A., Varga, C., Varga, R., Vazquez, D., Veberic, A., Veiga, A., Velard, F., Vernottebe, V., Verzi, M., Videla, C., Vigorito, L. M., Villasenorai, M., Vlceka, L., Voyvodi, T., Vo Vanap, T., Waldenmaier, P., Walker, D., Warner, A. A., Watson, Wiebusch, C. h., G., Wieczore, B., Wilczynska, H., Wilczynski, N. R., Wild, T., Yamamoto, E., Za, D., Zavrtanik, M., Zavrtanik, A., Zeped, C., Zhang, and Q. Z. h., U.

Subjects
Raggi cosmici di altissima energia, Osservatorio Pierre Auger, Tecniche di simulazione e di misura di energia
Abstract

The performance of the Auger Fluorescence telescope is discussed on the basis of a mass production chain. In order to get a realistic estimate of the detector resolution, a large number of fully simulated CORSIKA showers have been used for this study. The propagation through the atmosphere and the detector response are taken into account and simulated in detail. Results for the the case of monocular reconstruction are presented here. No quality cuts for the event reconstruction have been applied so far. Finally, a schematic overview of the expected event topologies is given together with the display of a real event recently collected.

Published
2004

44. Systematic Lidar Ratio Measurements in the frame of EARLINET

Author

PAPPALARDO G, J. BOESENBERG, M. ALPERS, D, BALIS, L. KOMGUEM, V. MATTHIAS, I. MATTIS, L. MONA, A. PAPAYANNIS, V. RIZI AND N. SPINELLI, DE TOMASI, Ferdinando, Pappalardo, G, J., Boesenberg, M., Alper, D, Bali, DE TOMASI, Ferdinando, L., Komguem, V., Matthia, I., Matti, L., Mona, A., Papayanni, and V. RIZI AND N., Spinelli

Published
2003

45. Three years of observations of Saharan dust outbreaks over Europe monitored by a coordinated LIDAR Network in the frame of the EARLINET Project (2000-2003)

Author

PAPAYANNIS A, G. TSAKNAKIS, D. BALIS, A. CHAIKOVSKY, I. MATTIS, V. MITEV, G. PAPPALARDO, J. PELON, C. PEREZ, S. PUCHALSKI, V. RIZI, L. SAUVAGE, V. SIMEONOV, N. SPINELLI, T. TRICKL, G. VAUGHAN, M. WIEGNER, V. MATTHIAS, A. HÅGÅRD, M. ALPERS, AND A. CASTANHO, DE TOMASI, Ferdinando, Papayannis, A, G., Tsaknaki, D., Bali, A., Chaikovsky, DE TOMASI, Ferdinando, I., Matti, V., Mitev, G., Pappalardo, J., Pelon, C., Perez, S., Puchalski, V., Rizi, L., Sauvage, V., Simeonov, N., Spinelli, T., Trickl, G., Vaughan, M., Wiegner, V., Matthia, A., Hågård, M., Alper, and AND A., Castanho

Published
2003

47. Enhancements to the Southern Pierre Auger Observatory

Author

Giorgio Matthiae, E. Moreno, C. Macolino, Alessio Gorgi, J. Oehlschläger, S. Harmsma, M. Ave, R. Mussa, J. J. Beatty, Norbert Kunka, Silvia Mollerach, Alain Hervé, J. Coppens, Antonio Insolia, R. Sato, G. Müller, L. Winders, Richard Dallier, Christopher Morris, Jaime Alvarez-Muñiz, S. Dagoret-Campagne, Henry Glass, Eva Santos, C. Meurer, D. Pakk Selmi-Dei, D. Schuster, A. Anzalone, C. Morello, M. Prouza, Domenico Tegolo, A. Cordier, Antonio Bueno, M. Roth, N. Nierstenhoefer, R. D. Parsons, Luis Villaseñor, Dariusz Gora, Sergio Pastor, Diego Harari, B. Sarkar, R. Rebolo Lopez, Carola Dobrigkeit, Sergio Sciutto, P. Younk, Fabian Schmidt, J. K. Kulbartz, Daniel Gonzalez, Ricardo Vázquez, Jakub Vicha, P. A. Kasper, J. S. Díaz, P. Abreu, S. L. C. Barroso, M. Will, V. H. Ponce, T. Paul, B. Vargas Cárdenas, Miroslav Palatka, T. Yamamoto, Rémi Bardenet, Alexander Menshikov, D. Kruppke-Hansen, Simone Riggi, Ruben Squartini, Jiri Chudoba, Daniel Kuempel, D.R. Walz, A. Italiano, Sebastian Schulte, E. Strazzeri, E. Varela, N. T. Thao, T. Hebbeker, A. Shadkam, Peter Schiffer, K. B. Barber, A. Lemiere, I. Zaw, A. Creusot, Paolo Privitera, R.M. Kieckhafer, S. Maldera, P. Brogueira, M. Blanco, M. Zimbres-Silva, Mário Pimenta, Gregory R Snow, Moritz Münchmeyer, Christopher B. Williams, D. Maurizio, J. C. Moreno, Ralph Engel, E. Petermann, H. Schoorlemmer, A. Śmiał kowski, D. Allard, K. Gesterling, Mario Scuderi, Ivone F. M. Albuquerque, C. Aramo, Carlos Hojvat, Ernesto Kemp, H. H. Silva Lopez, Andreas Weindl, Dusan Mandat, M. Ambrosio, Niraj Dhital, I. Valiño, Katrin Link, E. Menichetti, Bruce R. Dawson, C. E. Santo, R. Bruijn, Petr Schovanek, Pham Ngoc Diep, C. Robledo, O. Wainberg, Jonny Kleinfeller, J. Alvarez Castillo, F. Sarazin, R. F. Gamarra, Karen S. Caballero-Mora, A. Stutz, H. R. Marquez Falcon, Gualberto Avila, Angela V. Olinto, C. Di Giulio, Michael Sutherland, A. Guzman, M. A. Muller, G. Marsella, A. Filevich, P. Gouffon, Gaetano Salina, U. Fröhlich, J. Bäuml, G. Yuan, P. Karhan, Bianca Keilhauer, M. Monasor, B. Zamorano, Sebastian Achim Mueller, M. Gold, J. D. Hague, L. Perrone, S. Westerhoff, Viviana Scherini, N. Palmieri, L. Anchordoqui, Alessandro Petrolini, K. Weidenhaupt, V. Verzi, P. Wahrlich, G. Sigl, L. Niemietz, A. Tamashiro, Heino Falcke, Paulo J. S. Gonçalves, J. Aublin, Miroslav Hrabovský, J. Lozano Bahilo, Segev BenZvi, Andreas Haungs, M. Videla, Michael Unger, A. Schmidt, Francisco J. Blanco, G. Cataldi, M. L. Díaz Castro, Jaroslaw Stasielak, Juan Carlos D'Olivo, L. del Peral, I. Fajardo Tapia, Hans Klages, A. Chiavassa, A. Nelles, M. T. Dova, Matthias Kleifges, H. Spinka, P. Ristori, S. H. Cheng, O. Ravel, Jan Ridky, V. Rizi, Corbin Covault, Roger W Clay, A. Ferrero, Azadeh Keivani, F. Gomez Albarracin, Esteban Roulet, Philipp Mertsch, Aaron S. Chou, Ricardo Piegaia, C. E. Fracchiolla, F. Arqueros, N. Krohm, V. M. Olmos-Gilbaja, P. Necesal, Germano Guedes, Hermann-Josef Mathes, G. Tristram, U. Cotti, Olivier Deligny, H. Salazar, Geraldina Golup, Alexander Grillo, Juan Pallotta, M. Tueros, Rodrigo Pelayo, P. Allison, Osvaldo Catalano, D. D'Urso, M. I. Micheletti, J. Rodriguez Martino, S. Fliescher, Corinne Berat, D. Nitz, D. García Gámez, Martina Bohacova, Miroslav Pech, Tobias Winchen, T. Bäcker, J. C. Marin, Hartmut Gemmeke, J. L. Harton, J. Petrovic, Xavier Bertou, Fausto Guarino, Jose Luis La Rosa Navarro, J. Pȩkala, H. Wahlberg, M. Zavrtnik, Javier Gonzalez, Piera Luisa Ghia, Darko Veberič, Diego Ravignani, Lino Miramonti, B. Rouillé-d'Orfeuil, P. T. Nhung, Anderson Fauth, S. Gambetta, Pedro Assis, K. Kadija, Adrian Rovero, J. R. Vázquez, O. Taşcău, J. R. T. de Mello Neto, Tiina Suomijarvi, K. D. de Vries, Jörg R. Hörandel, W. C. Brown, Ioana Codrina Maris, V. de Souza, K. Louedec, Mariangela Settimo, K. H. Kampert, Alexey Yushkov, J. F. Valdés Galicia, D. Monnier Ragaigne, P. L. Biermann, P. Buchholz, David Warner, Michael Ziolkowski, Javier Tiffenberg, I. De Mitri, H. Blümer, W. Rodrigues de Carvalho, Gonzalo Parente, J. Rosado, Benoît Revenu, S. Mićanović, D. Garcia-Pinto, Danilo Zavrtanik, M. S. A. B. Leão, Kumiko Kotera, Bryan C. Fuchs, Dieter Heck, Paul Sommers, R. Cester, A. Aminaei, A. F. Barbosa, Iván Sidelnik, W. Tkaczyk, B. J. Whelan, D. H. Koang, P. N. Dong, P. Lebrun, M. J. Cooper, Piotr Homola, P. Facal San Luis, M. Grigat, B. Morales, S. Jiraskova, M. Tartare, R. Gaior, C. Pfendner, J. W. Cronin, S. R. Gozzini, H. Martinez, Tim Huege, Dalibor Nosek, M. Josebachuili, J. Neuser, N. Hollon, E. Grashorn, F. Sánchez, Lawrence Wiencke, C. Timmermans D. K. Tiwari, H. Cook, M. De Domenico, Marcos Santander, C. O. Escobar, Valerio Pirronello, A.D. Supanitsky, A. Curutiu, J. A. J. Matthews, J. L. Kelley, Henryk Wilczyński, I. Allekotte, Sofia Andringa, R. Tcaciuc, J. D. Swain, Tanguy Pierog, Alan Watson, M. G. Winnick, F. Montanet, R. Bonino, A. Criss, Sergio Dasso, Zbigniew Szadkowski, M.D. Rodríguez-Frías, B. Wilczyńska, N. Pacheco, C. Jarne, Warner A. Miller, W. Docters, Paul Mantsch, Kurt Becker, G. Wieczorek, J. C. dos Anjos, E. Trovato, M. Gómez Berisso, P. Travnicek, E. J. Ahn, N. Griffith, Ernesto Arganda, Alejandra Parra, S. Sánchez Navas, Isabelle Lhenry-Yvon, M. Mostafá, N. Phan, Jose Chinellato, J. Chauvin, Edivaldo Moura Santos, J. Stapleton, M. Stephan, C. Lachaud, Peter Mazur, R. E. Burton, Y. Guardincerri, J. Knapp, A. Lopez Agüera, Maria J. Ortiz, H. Lyberis, D. Martello, Maria Rita Coluccia, Y. Petrov, M. C. Maccarone, P. Lautridou, M. Weber, N. Scharf, Carla Bonifazi, Alberto Segreto, Jose A. Bellido, A. Dorofeev, Iuri Muniz Pepe, A. Lucero, Peter Hansen, Nataliia Borodai, John Matthews, Jaroslava Schovancova, A. Letessier-Selvon, Maria Giller, Glennys R. Farrar, Jan Ebr, Arnulfo Zepeda, Etienne Parizot, L. Valore, J. Allen, Rossella Caruso, R. Pesce, Bruce Becker, J. Sorokin, T. Rossler, A. Bellétoile, Markus Risse, Galo Rafael Gonzalvo Rodriguez, Marianne Ludwig, Sergio Petrera, M. Melissas, G. La Rosa, F. Kuehn, H. Rivera, R. M. de Almeida, Rúben Conceição, Marco Aglietta, Lukas Nellen, M. Wommer, V. Marin, P. Billoir, S. Grebe, Sven Querchfeld, B. Gookin, M. Urban, C. Bleve, H. Dembinski, R. Ulrich, M.A. Leigui de Oliveira, C. J. Todero Peixoto, D. B. Tridapalli, P. Pieroni, L. Martin, A. Horneffer, P. Petrinca, Antonella Castellina, O. Martínez Bravo, M. Erdmann, V. C. Holmes, D. Lebrun, I. Dutan, I. Rodriguez-Cabo, B. M. Baughman, Julian Rautenberg, Radomir Smida, S. Coutu, Federico Suarez, A. Tonachini, L. Nožka, Lorenzo Cazon, G. De La Vega, A. M. van den Berg, Norberto Fazzini, Analisa Mariazzi, D. Melo, Kai Daumiller, Benjamin A. Garcia, M. Nyklicek, A. Filipčič, J. Rodriguez Rojo, L. Caramete, S. Stanič, Manuel Platino, C. De Donato, Jeffrey Brack, Olaf Scholten, M. Szuba, F.G. Schröder, Enrique Zas, Harald Schieler, A. Tapia, M. Balzer, C. Rühle, T. Yapici, M. Pontz, G. Decerprit, Alberto Etchegoyen, G. Navarra, A. P. Ferguson, C. A. Moura, Bernardo Tomé, Brian Fick, Brian Wundheiler, Fernando Contreras, Balázs Kégl, Subir Sarkar, A. Gascon, Hernán Asorey, T. Šuša, R.C. Shellard, Denise Boncioli, F. Ionita, S. J. De Jong, M. Avenier, D. Thomas, Ugo Giaccari, Francesco Salamida, German Ros, Gustavo Medina-Tanco, C. G. Tavera Ruiz, Eduardo Quel, E. D. Fraenkel, W. J. M. de Mello Junior, T. Antičić, J. Roberts, and O. Krömer

Subjects
History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Cosmic ray, Scintillator, 01 natural sciences, 7. Clean energy, Education, Optics, Observatory, 0103 physical sciences, 010306 general physics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Cherenkov radiation, Physics, Pierre Auger Observatory, 010308 nuclear & particles physics, business.industry, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications, Air shower, Experimental High Energy Physics, Amiga, business
Abstract

The southern Pierre Auger Observatory has been detecting cosmic rays above 1018eV since 2004, exploiting a hybrid air shower detection technique, with 1660 water Cherenkov detectors together with 24 air fluorescence telescopes on a 3000 km2 site. As low energy enhancements to the observatory, 3 additional telescopes with elevated fields of view were built (HEAT). The detector density was increased in the HEAT fields of view by a factor of four in an area of about 25 km2. This setup enables unbiased hybrid data taking above 1017eV. The infilled area is also being equipped with large underground scintillator muon detectors (AMIGA). Finally, a prototype array of radio antenna stations (AERA), working from 30 to 80 MHz, has been installed in a part of the infill. Properties and status of AMIGA, HEAT, and AERA are presented.

Published
2012

48. EARLINET coordinated lidar observations of Saharan dust events on continental scale

Author

Albert Ansmann, A. Papayannis, Thomas Trickl, Doina Nicolae, L. Alados Arboledas, Mónica Pujadas, M. Rita Perrone, Dimitar Stoyanov, Arnoud Apituley, N. Spinelli, Dimitrios Balis, V. Rizi, Christine Böckmann, Matthias Wiegner, Valentin Simeonov, Jean-Philippe Putaud, Gelsomina Pappalardo, Lucia Mona, Georg Hansen, Valentin Mitev, Adolfo Comerón, Aleksander Pietruczuk, Ove Gustafsson, François Ravetta, Jens Bösenberg, A. Chaikovsky, Istituto di Metodologie per l'Analisi Ambientale (IMAA), Consiglio Nazionale delle Ricerche [Potenza] (CNR), National Technical University of Athens [Athens] (NTUA), Max-Planck-Institut für Meteorologie (MPI-M), Max-Planck-Gesellschaft, Leibniz Institute for Tropospheric Research (TROPOS), National Institute for Public Health and the Environment [Bilthoven] (RIVM), Universidad de Granada (UGR), Aristotle University of Thessaloniki, Institut für Mathematik [Potsdam], Universität Potsdam, B. I. Stepanov Institute of Physics [Minsk], National Academy of Sciences of Belarus (NASB), Universitat Politècnica de Catalunya [Barcelona] (UPC), Swedish Defence Research Agency [Stockholm] (FOI), Norwegian Institute for Air Research (NILU), Centre Suisse d'Electronique et de Microtechnique SA [Neuchatel] (CSEM), Centre Suisse d'Electronique et Microtechnique SA (CSEM), National Institute of Research and Development for Optoelectronics (INOE), Department of Physics [Lecce], Università del Salento [Lecce], Institute of Geophysics [Warsaw], Polska Akademia Nauk = Polish Academy of Sciences (PAN), Centro de Investigaciones Energéticas Medioambientales y Tecnológicas [Madrid] (CIEMAT), European Commission - Joint Research Centre [Ispra] (JRC), TROPO - LATMOS, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Fisica [L'Aquila], Università degli Studi dell'Aquila (UNIVAQ), Ecole Polytechnique Fédérale de Lausanne (EPFL), Consorzio Nazionale Interuniversitario per le Scienze FIsiche della Materia (CNISM), Institute of Electronics [Sofia], Bulgarian Academy of Sciences (BAS), Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU), Karlsruher Institut für Technologie (KIT), Ludwig-Maximilians-Universität München (LMU), Universidad de Granada = University of Granada (UGR), University of Potsdam = Universität Potsdam, and Università degli Studi dell'Aquila = University of L'Aquila (UNIVAQ)

Subjects
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph], 010504 meteorology & atmospheric sciences, Meteorology, [SDE.MCG]Environmental Sciences/Global Changes, Mineral dust, 01 natural sciences, Aerosol, 010309 optics, Optical radar, Geography, Lidar, [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology, 0103 physical sciences, Statistical analysis, Scale (map), Alert system, ComputingMilieux_MISCELLANEOUS, 0105 earth and related environmental sciences
Abstract

EARLINET, the European Aerosol Research Lidar Network, is the best tool to investigate the horizontal and vertical transport of aerosols over Europe. Within the network, particular attention is devoted to Saharan dust events monitoring. An alert system has been established in order to perform devoted measurements in case of intrusions of desert particles on European continent. Starting from data collected within EARLINET since May 2000, a first statistical analysis of the aerosol vertical distribution on European scale during Saharan dust outbreaks, has been performed. These results highlights the fundamental role that EARLINET can have for the study of impact of Saharan dust on European scale. The current 5-year EU project EARLINET-ASOS, started in March 2006, will enhance the operation of the network through the improvement of the instruments and of the temporal coverage, and of the data analysis procedures.

Published
2009

49. The European Aerosol Research Lidar Network (EARLINET): An Overview

Author

Adolfo Comerón, V. Rizi, Ulla Wandinger, Aldo Amodeo, Francesc Rocadenbosch, V. Simeonov, Nicola Spinelli, Valentin Mitev, Ove Gustafsson, François Ravetta, Jean-Philippe Putaud, Aleksander Pietruczuk, Jens Bösenberg, Doina Nicolae, Ina Mattis, Constantino Munoz, Volker Freudenthaler, Manuel Pujadas, Carlos Pérez, Christine Böckmann, Matthias Wiegner, Georg Hansen, Lucas Alados-Arboledas, Alexandros Papayannis, Dimitris Balis, Gelsomina Pappalardo, Anatoly Chaikovsky, Arnoud Apituley, Thomas Trickl, Maria Rita Perrone, Dimitar Stoyanov, R.-E. Mamouri, Albert Ansmann, Michaël Sicard, Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, and Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció

Subjects
Observation network, Teledetecció, Meteorology, EARLINET, Network on, Remote sensing, Atmosphere -- Laser observations, Lidar aerosols, Aerosol, Atmosfera -- Observacions amb làser, Optical radar, Global Earth Observation System of Systems, Lidar, Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció [Àrees temàtiques de la UPC], GEOSS, Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica [Àrees temàtiques de la UPC]
Abstract

The European Aerosol Research LIdar NETwork (EARLINET) is the first aerosol lidar network on a continental scale with the main goal to provide a comprehensive, quantitative, and statistically significant database for the aerosol distribution over Europe. Next, we present EARLINET along with the main network activities.

Published
2008

50. Geophysical validation of temperature retrieved by the ESA processor from MIPAS/ENVISAT atmospheric limb-emission measurements

Author

Ridolfi M., U. Blum, B. Carli, V. Catoire, S. Ceccherini, H. Claude, C. De Clercq, K. H. Fricke, F. Friedl-Vallon, M. Iarlori, P. Keckhut, B. Kerridge, J.-C. Lambert, Y. J. Meijer, L. Mona, H. Oelhaf, G. Pappalardo, M. Pirre, V. Rizi, C. Robert, and D. Swa

Subjects
LIDAR, Atmospheric composition and structure, SOUTHERN-HEMISPHERE, SPECTROMETERS, Remote sensing
Abstract

The Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) has been operating since March 2002 onboard of the ENVIronmental SATellite of the European Space Agency (ESA). The high resolution (0.035 cm-1 full width half maximum, unapodized) limb-emission measurements acquired by MIPAS in the first two years of operation have very good geographical and temporal coverage and have been re-processed by ESA with the most recent versions (4.61 and 4.62) of the inversion algorithms. The products of this processing chain are pressures at the tangent points and geolocated profiles of temperature and of the volume mixing ratios of six key atmospheric constituents: H2O, O3, HNO3, CH4, N2O and NO2. As for all the measurements made with innovative instruments and techniques, this data set requires a thorough validation. In this paper we present a geophysical validation of the temperature profiles derived from MIPAS measurements by the ESA retrieval algorithm. The validation is carried-out by comparing MIPAS temperature with correlative measurements made by radiosondes, lidars, in-situ and remote sensors operated either from the ground or stratospheric balloons. The results of the intercomparison indicate that the bias of the MIPAS profiles is generally smaller than 1 or 2 K depending on altitude. Furthermore we find that, especially at the edges of the altitude range covered by the MIPAS scan, the random error estimated from the intercomparison is larger (typically by a factor of two to three) than the corresponding estimate derived on the basis of error propagation. In this work we also characterize the discrepancies between MIPAS temperature and the temperature fields resulting from the analyses of the European Centre for Medium-range Weather Forecasts (ECMWF). The bias and the standard deviation of these discrepancies are consistent with those obtained when comparing MIPAS to correlative measurements; however, in this case the detected bias has a peculiar behavior as a function of altitude. This behavior is very similar to that observed in previous studies and is suspected to be due to vertical oscillations in the ECMWF temperature. The current understanding is that, at least in the upper stratosphere (above 10 hPa), these oscillations are caused by a discrepancy between model biases and biases of assimilated radiances from primarily nadir sounders.

Published
2007

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