Author: "Eugenio Bottacini" - Searchworks@Jio Institute Digital Library Search Results

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1. Exploring the MeV Sky With A Combined Coded Mask and Compton Telescope: the Galactic Explorer With A Coded Aperture Mask Compton Telescope (GECCO)

Author: Elena Orlando, Eugenio Bottacini, A.A. Moiseev, Arash Bodaghee, Werner Collmar, Torsten Ensslin, Igor V. Moskalenko, Michela Negro, Stefano Profumo, Seth W. Digel, David J. Thompson, Matthew G. Baring, Aleksey Bolotnikov, Nicholas Cannady, Gabriella A. Carini, Vincent Eberle, Isabelle A. Grenier, Alice K. Harding, Dieter Hartmann, Sven Herrmann, Matthew Kerr, Roman Krivonos, Philippe Laurent, Francesco Longo, Aldo Morselli, Bernard Philips, Makoto Sasaki, Peter Shawhan, Daniel Shy, Gerry Skinner, Lucas D. Smith, Floyd W. Stecker, Andrew Strong, Steven Sturner, John A. Tomsick, Zorawar Wadiasingh, Ricahrd S. Woolf, Eric Yates, Klaus-Peter Ziock, and Andreas Zoglauer
Subjects: Astrophysics, Physics of Elementary Particles and Fields
Abstract: The sky at MeV energies is currently poorly explored. Here we present an innovative mission concept that builds upon the heritage of past and current missions improving the sensitivity and, very importantly, the angular resolution. This consists in combining a Compton telescope and a coded-mask telescope. We delineate the motivation for such a concept and we define the scientific goals for such a mission. The Galactic Explorer with a Coded Aperture Mask Compton Telescope (GECCO) is a novel concept for a next-generation telescope covering hard X-ray and soft gamma-ray energies. The potential and importance of this approach that bridges the observational gap in the MeV energy range are presented. With the unprecedented angular resolution of the coded mask telescope combined with the sensitive Compton telescope, a mission such as GECCO can disentangle the discrete sources from the truly diffuse emission. Individual Galactic and extragalactic sources are detected. This also allows to understand the gamma-ray Galactic center excess and the Fermi Bubbles, and to trace the low-energy cosmic rays, and their propagation in the Galaxy. Nuclear and annihilation lines are spatially and spectrally resolved from the continuum emission and from sources, addressing the role of low-energy cosmic rays in star formation and galaxy evolution, the origin of the 511 keV positron line, fundamental physics, and the chemical enrichment in the Galaxy. Such an instrument also detects explosive transient gamma-ray sources, which, in turn, enables identifying and studying the astrophysical objects that produce gravitational waves and neutrinos in a multi-messenger context. By looking at a poorly explored energy band it also allows discoveries of new astrophysical phenomena.
Published: 2022
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2. Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation

Author: J.-P. Lenain, A. Domínguez, Jonathan Ivor Davies, T. Armstrong, A. A. Zdziarski, F. Gianotti, M. Balbo, E. O. Angüner, M. Marculewicz, Alasdair E. Gent, Alice Donini, Olivier Hervet, Henry Przybilski, Giacomo Principe, G. Leto, M. Peresano, Stefano Covino, P. A. Caraveo, Gianpiero Tagliaferri, D. de Martino, V. V. Vassiliev, D. Cauz, F. R. Pantaleo, U. Barres de Almeida, Pietro Bruno, E. Lindfors, M. Zavrtanik, G. Hughes, Miriam Lucio Martinez, P. Bordas, Y. Suda, G. S. Varner, R. Rando, K. Cerny, S. Pita, Csaba Balázs, E. Fiandrini, Michael Backes, Tomohiko Oka, Massimo Persic, Andrea Chiavassa, Johannes Veh, A. Stamerra, Fabrizio Tavecchio, B. Biasuzzi, Michael Punch, Soebur Razzaque, F. D'Ammando, P. I. Batista, Bruna Bertucci, F. Longo, Francesco Gabriele Saturni, Michael G. Burton, Bohdan Hnatyk, P. Sangiorgi, E. M. Santos, D. Nosek, Gagik Tovmassian, J. L. Dournaux, Pedro L. Luque-Escamilla, A. Aguirre-Santaella, M. Orienti, Lluis Font, Andreas Quirrenbach, Philippe Laporte, Ralf Kissmann, Francesco Lucarelli, K. Noda, I. Jiménez Martínez, G. Romeo, Wystan Benbow, P. Romano, B. Bi, J. Grube, H.-S. Zechlin, Giacomo Bonnoli, Martin White, J. P. Osborne, Enrico Cascone, Marek Jamrozy, C. Alispach, Miroslav Pech, O. Cuevas, Petr Schovanek, K. Hayashi, V. I. Zhdanov, Javier Coronado-Blázquez, D. Medina Miranda, Barbara Balmaverde, E. de Ona Wilhelmi, Frank M. Rieger, A. Shalchi, J. M. Paredes, Ruben Alfaro, N. Giglietto, Diego Falceta-Gonçalves, Helene Sol, Rodolfo Carosi, Ayan Acharyya, Dominik Elsässer, S. Vercellone, D. Pimentel, T. Mizuno, Alessandro Bruno, Juan Abel Barrio, K. Kosack, Mauro Orlandini, Rodrigo Guedes Lang, P. Marquez, Adrian Biland, Y. Kobayashi, Nicholas F. H Tothill, M. de Naurois, Daniele Spiga, Lili Yang, L. Tibaldo, Pavel Horvath, M. Lopez, I. Sadeh, Marek Nikolajuk, F. Schüssler, Reshmi Mukherjee, Gianpaolo Vettolani, Jürgen Knödlseder, Daniel Nieto, R. Hnatyk, German Martinez, Diego F. Torres, Farinaldo S. Queiroz, N. Parmiggiani, G. Lamanna, Marcos Santander, S. Fegan, I. Vovk, M. Sánchez-Conde, Wiphu Rujopakarn, Norita Kawanaka, R. C. Shellard, Michael C. B. Ashley, J. Jurysek, Francisco J. Franco, Samuel Timothy Spencer, E. Rebert, J. Morales Merino, M. Pecimotika, Marco Berton, Regis Terrier, G. A. Beck, Carlos Díaz, J. L. Contreras, G. Zaharijas, R. Moderski, José-María Martí, A. Insolia, D. Zavrtanik, K. Kohri, Ladislav Chytka, T. Grabarczyk, A. Zech, M. Garczarczyk, Anastasia Sokolenko, J. Lefaucheur, R. A. Cameron, Moritz Hütten, S. Karkar, K. Pfrang, V. Poireau, Asaf Pe'er, A. Reimer, Fabio Acero, L. Freixas Coromina, David Sánchez, Jonathan S. Lapington, Konstantinos N. Gourgouliatos, J.R. Hörandel, Mario Buscemi, Francesco Dazzi, Abelardo Moralejo, J. Bolmont, R. White, A. Rosales de Leon, J. Prast, Sabrina Einecke, Roberto Aloisio, Yvonne Becherini, Andreas Specovius, Shohei Yanagita, Juan Cortina, Miroslav Hrabovsky, Petr Janecek, D. Depaoli, Lucas Taylor, U. Schwanke, H. Abdalla, S. Recchia, Manuela Mallamaci, M. K. Daniel, Q. Feng, L. Baroncelli, Hiromitsu Takahashi, Susumu Inoue, U. Straumann, Masatoshi Ohishi, Roberto Capuzzo-Dolcetta, Nu. Komin, Federico Russo, R. de Cássia dos Anjos, Y. Ohira, Ferdinando Giordano, Nagisa Hiroshima, E. Garcia, Gavin Rowell, V. Bozhilov, Maxim V. Barkov, Dario Hrupec, I. Oya, F. Salesa Greus, Anna Wolter, M. Živec, R. Belmont, R. Adam, T. Reposeur, J. Rico, A. W. Chen, G. Pühlhofer, H. Prokoph, Stefan Wagner, F. Di Pierro, Fabrizio Bocchino, M. de Bony de Lavergne, A. Kong, Masha Chernyakova, M. Pohl, M. Vazquez Acosta, A. Nagai, A. Brill, Dusan Mandat, Jonathan Biteau, Martin Makariev, Catherine Boisson, E. Lyard, Gilles Maurin, H. Martínez-Huerta, Oscar Blanch, Bernd Schleicher, M. Minev, A. Berti, James E. M. Watson, Talvikki Hovatta, M. Valentino, Luis Ángel Tejedor, Elena Amato, M. V. Fonseca, Anderson Caproni, L. Mohrmann, P. Reichherzer, R. L. C. Starling, M. Seglar Arroyo, E. Orlando, B. Rudak, G. Emery, J. A. Green, Salvo Scuderi, M. Prouza, Tom Richtler, Bartłomiej Pilszyk, A. Carosi, Jacek Niemiec, Wolfgang Rhode, G. Ambrosi, D. Ribeiro, A. Wierzcholska, A. Ghalumyan, Eugenio Bottacini, Sylvain Chaty, A. Baquero Larriva, Olaf Reimer, D. Horan, Fabian Leuschner, T. Di Girolamo, Alessandro Caccianiga, Martin Will, Saverio Lombardi, A. Fiasson, Mitsunari Takahashi, J. J. Rodríguez Vázquez, B. De Lotto, V. De Caprio, Stefano Truzzi, Dirk L. Hoffmann, M. Vecchi, Antonio Pagliaro, Jose J. Gonzalez, Wenwu Tian, R. Della Ceca, J. Becerra González, S. Nozaki, T. Vuillaume, S. L. Lloyd, Maria Ionica, Elisabetta Bissaldi, Petr Travnicek, Y. Ascasibar, Carlo Vigorito, F. Tuossenel, Malcolm Fairbairn, O. Martinez, Marco Iarlori, Serena Loporchio, Alessandro Costa, R. Pillera, A. Morselli, M. Heller, Jaime Rosado, E. M. de Gouveia Dal Pino, V. Vitale, A. M. Brown, E. Molina, Takashi Saito, A. De Angelis, Thomas Murach, R. A. Ong, J. Bregeon, P. T. O'Brien, Mikael Jacquemont, P. Cristofari, Francesco Conte, Lab Saha, R. Walter, Vitalii Sliusar, W. Jin, Vito Conforti, N. Produit, H. Siejkowski, Lovro Pavletić, Carole Mundell, G. Rodriguez Fernandez, J. F. Glicenstein, Paresh Sharma, C. Delgado, Vladimír Karas, Luca Foffano, J. Granot, Manuel Meyer, Reiko Orito, G. Umana, G. Chiaro, D. Tonev, R. Wiemann, G. Manicò, J.C. Rodriguez Ramirez, Luca Tosti, Markus Böttcher, Andrea Bulgarelli, C. Díaz-Bahamondes, I. Jung-Richardt, Karol Seweryn, P. Piatteli, Agnieszka Slowikowska, Jan Ebr, M. Ostrowski, J. L. Rodriguez, D. della Volpe, Ermanno Pietropaolo, M. Caprai, T. Montaruli, A. Lopez, Rodrigo Nemmen, R. R. Prado, L. Arrabito, Atreyee Sinha, C. van Eldik, Serguei Vorobiov, Hidetoshi Sano, J. Alfaro, Sabrina Casanova, G. Maneva, B. Vallage, Valentina Fioretti, Carmelo Evoli, P. Kaaret, B. A. W. Mode, Agnieszka Majczyna, Sebastian Diebold, A. Scherer, F. de Palma, S. Hernández Cadena, V. Beshley, T.R.N. Ekoume, David A. Williams, M. Capasso, A. Halim, Alison Mitchell, Tomislav Terzić, Paola Grandi, Lorenzo Amati, Christopher Eckner, David Gascon, K. Nishijima, J. Becker Tjus, B. Khélifi, G. Galanti, Jamie Holder, Vincenzo Rizi, Orel Gueta, Daniele Gaggero, F. Pintore, Utane Sawangwit, Vassil Verguilov, Heide Costantini, F. Arqueros, Daniel Kerszberg, P. M. Chadwick, D. Zarić, Marc Ribó, Olga Sergijenko, Dario Grasso, Hidetoshi Kubo, Daniela Dorner, T. Stolarczyk, M. Gaug, R. Alves Batista, Elisa Bernardini, Vikram V. Dwarkadas, Jim Hinton, Jelena Strišković, Andreu Sanuy, M. Servillat, V. Barbosa Martins, Giovanni Bonanno, S. Gunji, R. Wischnewski, S. Sarkar, Gianluca Giavitto, Takeshi Nakamori, M. Palatka, Maria Letizia Pumo, Camilla Maggio, M. Zacharias, Katsuaki Asano, Valerio Vagelli, Anton Dmytriiev, Ryo Yamazaki, M. Vacula, P. Goldoni, Gilles Fontaine, Hiroshi Muraishi, D. Mazin, Samo Stanič, G. Ghirlanda, M. Polo, M. Nievas, M. Lemoine-Goumard, Oleh Petruk, Jose Miguel Miranda, M. Iori, A. Marcowith, Y. Renier, Satoshi Fukami, M. Roncadelli, F. Leone, Takanori Yoshikoshi, Ana Luiza d'Ávila Viana, Y. Fukui, Max Harvey, Sera Markoff, I. Agudo, P. Temnikov, Vincenzo Testa, R. López-Coto, J.D. Mbarubucyeye, Tjark Miener, David Paneque, V. Gammaldi, T. Hassan Collado, H. Abe, L. Bonneau Arbeletche, S. D. Vergani, Sasa Micanovic, P. Vallania, Marina Manganaro, Elena Torresi, M. Giarrusso, G. Ferrand, Paweł Świerk, B. Patricelli, Matteo Cerruti, N. La Palombara, D. Morcuende-Parrilla, V. de Souza, Toshiaki Inada, Yasushi Fukazawa, Werner Hofmann, Michele Doro, E. Pueschel, A. Araudo, E. Sciacca, Thomas Lohse, A. Djannati-Ataï, Abdalla, H., Abe, H., Acero, F., Acharyya, A., Adam, R., Agudo, I., Aguirre-Santaella, A., Alfaro, R., Alfaro, J., Alispach, C., Aloisio, R., Alves Batista, R., Amati, L., Amato, E., Ambrosi, G., Ang??ner, E. O., Araudo, A., Armstrong, T., Arqueros, F., Arrabito, L., Asano, K., Ascas??bar, Y., Ashley, M., Backes, M., Balazs, C., Balbo, M., Balmaverde, B., Baquero Larriva, A., Barbosa Martins, V., Barkov, M., Baroncelli, L., Barres de Almeida, U., Barrio, J. A., Batista, P. -I., Becerra Gonz??lez, J., Becherini, Y., Beck, G., Becker Tjus, J., Belmont, R., Benbow, W., Bernardini, E., Berti, A., Berton, M., Bertucci, B., Beshley, V., Bi, B., Biasuzzi, B., Biland, A., Bissaldi, E., Biteau, J., Blanch, O., Bocchino, F., Boisson, C., Bolmont, J., Bonanno, G., Bonneau Arbeletche, L., Bonnoli, G., Bordas, P., Bottacini, E., B??ttcher, M., Bozhilov, V., Bregeon, J., Brill, A., Brown, A. M., Bruno, P., Bruno, A., Bulgarelli, A., Burton, M., Buscemi, M., Caccianiga, A., Cameron, R., Capasso, M., Caprai, M., Caproni, A., Capuzzo-Dolcetta, R., Caraveo, P., Carosi, R., Carosi, A., Casanova, S., Cascone, E., Cauz, D., Cerny, K., Cerruti, M., Chadwick, P., Chaty, S., Chen, A., Chernyakova, M., Chiaro, G., Chiavassa, A., Chytka, L., Conforti, V., Conte, F., Contreras, J. L., Coronado-Blazquez, J., Cortina, J., Costa, A., Costantini, H., Covino, S., Cristofari, P., Cuevas, O., D'Ammando, F., Daniel, M. K., Davies, J., Dazzi, F., De Angelis, A., de Bony de Lavergne, M., De Caprio, V., de C??ssia dos Anjos, R., de Gouveia Dal Pino, E. M., De Lotto, B., De Martino, D., de Naurois, M., de O??a Wilhelmi, E., De Palma, F., de Souza, V., Delgado, C., Della Ceca, R., della Volpe, D., Depaoli, D., Di Girolamo, T., Di Pierro, F., D??az, C., D??az-Bahamondes, C., Diebold, S., Djannati-Ata??, A., Dmytriiev, A., Dom??nguez, A., Donini, A., Dorner, D., Doro, M., Dournaux, J., Dwarkadas, V. V., Ebr, J., Eckner, C., Einecke, S., Ekoume, T. R. N., Els??sser, D., Emery, G., Evoli, C., Fairbairn, M., Falceta-Goncalves, D., Fegan, S., Feng, Q., Ferrand, G., Fiandrini, E., Fiasson, A., Fioretti, V., Foffano, L., Fonseca, M. V., Font, L., Fontaine, G., Franco, F. J., Freixas Coromina, L., Fukami, S., Fukazawa, Y., Fukui, Y., Gaggero, D., Galanti, G., Gammaldi, V., Garcia, E., Garczarczyk, M., Gascon, D., Gaug, M., Gent, A., Ghalumyan, A., Ghirlanda, G., Gianotti, F., Giarrusso, M., Giavitto, G., Giglietto, N., Giordano, F., Glicenstein, J., Goldoni, P., Gonz??lez, J. M., Gourgouliatos, K., Grabarczyk, T., Grandi, P., Granot, J., Grasso, D., Green, J., Grube, J., Gueta, O., Gunji, S., Halim, A., Harvey, M., Hassan Collado, T., Hayashi, K., Heller, M., Hern??ndez Cadena, S., Hervet, O., Hinton, J., Hiroshima, N., Hnatyk, B., Hnatyk, R., Hoffmann, D., Hofmann, W., Holder, J., Horan, D., H??randel, J., Horvath, P., Hovatta, T., Hrabovsky, M., Hrupec, D., Hughes, G., H??tten, M., Iarlori, M., Inada, T., Inoue, S., Insolia, A., Ionica, M., Iori, M., Jacquemont, M., Jamrozy, M., Janecek, P., Jim??nez Mart??nez, I., Jin, W., Jung-Richardt, I., Jurysek, J., Kaaret, P., Karas, V., Karkar, S., Kawanaka, N., Kerszberg, D., Kh??lifi, B., Kissmann, R., Kn??dlseder, J., Kobayashi, Y., Kohri, K., Komin, N., Kong, A., Kosack, K., Kubo, H., La Palombara, N., Lamanna, G., Lang, R. G., Lapington, J., Laporte, P., Lefaucheur, J., Lemoine-Goumard, M., Lenain, J., Leone, F., Leto, G., Leuschner, F., Lindfors, E., Lloyd, S., Lohse, T., Lombardi, S., Longo, F., Lopez, A., L??pez, M., L??pez-Coto, R., Loporchio, S., Lucarelli, F., Luque-Escamilla, P. L., Lyard, E., Maggio, C., Majczyna, A., Makariev, M., Mallamaci, M., Mandat, D., Maneva, G., Manganaro, M., Manic??, G., Marcowith, A., Marculewicz, M., Markoff, S., Marquez, P., Mart??, J., Martinez, O., Mart??nez, M., Mart??nez, G., Mart??nez-Huerta, H., Maurin, G., Mazin, D., Mbarubucyeye, J. D., Medina Miranda, D., Meyer, M., Micanovic, S., Miener, T., Minev, M., Miranda, J. M., Mitchell, A., Mizuno, T., Mode, B., Moderski, R., Mohrmann, L., Molina, E., Montaruli, T., Moralejo, A., Morales Merino, J., Morcuende-Parrilla, D., Morselli, A., Mukherjee, R., Mundell, C., Murach, T., Muraishi, H., Nagai, A., Nakamori, T., Nemmen, R., Niemiec, J., Nieto, D., Nievas, M., Nikolajuk, M., Nishijima, K., Noda, K., Nosek, D., Nozaki, S., O'Brien, P., Ohira, Y., Ohishi, M., Oka, T., Ong, R. A., Orienti, M., Orito, R., Orlandini, M., Orlando, E., Osborne, J. P., Ostrowski, M., Oya, I., Pagliaro, A., Palatka, M., Paneque, D., Pantaleo, F. R., Paredes, J. M., Parmiggiani, N., Patricelli, B., Pavleti??, L., Pe'Er, A., Pech, M., Pecimotika, M., Peresano, M., Persic, M., Petruk, O., Pfrang, K., Piatteli, P., Pietropaolo, E., Pillera, R., Pilszyk, B., Pimentel, D., Pintore, F., Pita, S., Pohl, M., Poireau, V., Polo, M., Prado, R. R., Prast, J., Principe, G., Produit, N., Prokoph, H., Prouza, M., Przybilski, H., Pueschel, E., P??hlhofer, G., Pumo, M. L., Punch, M., Queiroz, F., Quirrenbach, A., Rando, R., Razzaque, S., Rebert, E., Recchia, S., Reichherzer, P., Reimer, O., Reimer, A., Renier, Y., Reposeur, T., Rhode, W., Ribeiro, D., Rib??, M., Richtler, T., Rico, J., Rieger, F., Rizi, V., Rodriguez, J., Rodriguez Fernandez, G., Rodriguez Ramirez, J. C., Rodr??guez V??zquez, J. J., Romano, P., Romeo, G., Roncadelli, M., Rosado, J., Rosales de Leon, A., Rowell, G., Rudak, B., Rujopakarn, W., Russo, F., Sadeh, I., Saha, L., Saito, T., Salesa Greus, F., Sanchez, D., S??nchez-Conde, M., Sangiorgi, P., Sano, H., Santander, M., Santos, E. M., Sanuy, A., Sarkar, S., Saturni, F. G., Sawangwit, U., Scherer, A., Schleicher, B., Schovanek, P., Schussler, F., Schwanke, U., Sciacca, E., Scuderi, S., Seglar Arroyo, M., Sergijenko, O., Servillat, M., Seweryn, K., Shalchi, A., Sharma, P., Shellard, R. C., Siejkowski, H., Sinha, A., Sliusar, V., Slowikowska, A., Sokolenko, A., Sol, H., Specovius, A., Spencer, S., Spiga, D., Stamerra, A., Stani??, S., Starling, R., Stolarczyk, T., Straumann, U., Stri??kovi??, J., Suda, Y., wierk, P., Tagliaferri, G., Takahashi, H., Takahashi, M., Tavecchio, F., Taylor, L., Tejedor, L. A., Temnikov, P., Terrier, R., Terzic, T., Testa, V., Tian, W., Tibaldo, L., Tonev, D., Torres, D. F., Torresi, E., Tosti, L., Tothill, N., Tovmassian, G., Travnicek, P., Truzzi, S., Tuossenel, F., Umana, G., Vacula, M., Vagelli, V., Valentino, M., Vallage, B., Vallania, P., van Eldik, C., Varner, G. S., Vassiliev, V., V??zquez Acosta, M., Vecchi, M., Veh, J., Vercellone, S., Vergani, S., Verguilov, V., Vettolani, G. P., Viana, A., Vigorito, C. F., Vitale, V., Vorobiov, S., Vovk, I., Vuillaume, T., Wagner, S. J., Walter, R., Watson, J., White, M., White, R., Wiemann, R., Wierzcholska, A., Will, M., Williams, D. A., Wischnewski, R., Wolter, A., Yamazaki, R., Yanagita, S., Yang, L., Yoshikoshi, T., Zacharias, M., Zaharijas, G., Zaric, D., Zavrtanik, M., Zavrtanik, D., Zdziarski, A. A., Zech, A., Zechlin, H., Zhdanov, V. I., ivec, M., Comisión Nacional de Investigación Científica y Tecnológica (Chile), Ministry of Education, Youth and Sports (Czech Republic), Academy of Finland, Istituto Nazionale di Astrofisica, National Science Centre (Poland), Slovenian Research Agency, European Commission, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia e Innovación (España), Junta de Andalucía, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), 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), 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), 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 de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CTA, UAM. Departamento de Física Teórica, Batista, R. A., Anguner, E. O., Ascasibar, Y., Larriva, A. B., Martins, V. B., De Almeida, U. B., Gonzalez, J. B., Tjus, J. B., Arbeletche, L. B., Bottcher, M., Angelis, A. D., De Lavergne, M. D. B., Caprio, V. D., De Dos Anjos, R. C., De Gouveia Dal Pino, E. M., Lotto, B. D., Martino, D. D., De Naurois, M., Wilhelmi, E. D. O., DE PALMA, F., De Souza, V., Ceca, R. D., Volpe, D. D., Girolamo, T. D., Pierro, F. D., Diaz, C., Diaz-Bahamondes, C., Djannati-Atai, A., Dominguez, A., Elsasser, D., Coromina, L. F., Gonzalez, J. M., Collado, T. H., Cadena, S. H., Horandel, J., Hutten, M., Martinez, I. J., Khelifi, B., Knodlseder, J., Palombara, N. L., Lopez, M., Lopez-Coto, R., Manico, G., Marti, J., Martinez, M., Martinez, G., Martinez-Huerta, H., Miranda, D. M., Merino, J. M., Pavletic, L., Puhlhofer, G., Ribo, M., Fernandez, G. R., Ramirez, J. C. R., Vazquez, J. J. R., De Leon, A. R., Greus, F. S., Sanchez-Conde, M., Arroyo, M. S., Stanic, S., Striskovic, J., Swierk, P., Eldik, C. V., Acosta, M. V., Zivec, M., 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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 National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), 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), 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), Abdalla H., Abe H., Acero F., Acharyya A., Adam R., Agudo I., Aguirre-Santaella A., Alfaro R., Alfaro J., Alispach C., Aloisio R., Batista R.A., Amati L., Amato E., Ambrosi G., Anguner E.O., Araudo A., Armstrong T., Arqueros F., Arrabito L., Asano K., Ascasibar Y., Ashley M., Backes M., Balazs C., Balbo M., Balmaverde B., Larriva A.B., Martins V.B., Barkov M., Baroncelli L., De Almeida U.B., Barrio J.A., Batista P.-I., Gonzalez J.B., Becherini Y., Beck G., Tjus J.B., Belmont R., Benbow W., Bernardini E., Berti A., Berton M., Bertucci B., Beshley V., Bi B., Biasuzzi B., Biland A., Bissaldi E., Biteau J., Blanch O., Bocchino F., Boisson C., Bolmont J., Bonanno G., Arbeletche L.B., Bonnoli G., Bordas P., Bottacini E., Bottcher M., Bozhilov V., Bregeon J., Brill A., Brown A.M., Bruno P., Bruno A., Bulgarelli A., Burton M., Buscemi M., Caccianiga A., Cameron R., Capasso M., Caprai M., Caproni A., Capuzzo-Dolcetta R., Caraveo P., Carosi R., Carosi A., Casanova S., Cascone E., Cauz D., Cerny K., Cerruti M., Chadwick P., Chaty S., Chen A., Chernyakova M., Chiaro G., Chiavassa A., Chytka L., Conforti V., Conte F., Contreras J.L., Coronado-Blazquez J., Cortina J., Costa A., Costantini H., Covino S., Cristofari P., Cuevas O., D'Ammando F., Daniel M.K., Davies J., Dazzi F., Angelis A.D., De Lavergne M.D.B., Caprio V.D., De Dos Anjos R.C., De Gouveia Dal Pino E.M., Lotto B.D., Martino D.D., De Naurois M., Wilhelmi E.D.O., Palma F.D., De Souza V., Delgado C., Ceca R.D., Volpe D.D., Depaoli D., Girolamo T.D., Pierro F.D., Diaz C., Diaz-Bahamondes C., Diebold S., Djannati-Atai A., Dmytriiev A., Dominguez A., Donini A., Dorner D., Doro M., Dournaux J., Dwarkadas V.V., Ebr J., Eckner C., Einecke S., Ekoume T.R.N., Elsasser D., Emery G., Evoli C., Fairbairn M., Falceta-Goncalves D., Fegan S., Feng Q., Ferrand G., Fiandrini E., Fiasson A., Fioretti V., Foffano L., Fonseca M.V., Font L., Fontaine G., Franco F.J., Coromina L.F., Fukami S., Fukazawa Y., Fukui Y., Gaggero D., Galanti G., Gammaldi V., Garcia E., Garczarczyk M., Gascon D., Gaug M., Gent A., Ghalumyan A., Ghirlanda G., Gianotti F., Giarrusso M., Giavitto G., Giglietto N., Giordano F., Glicenstein J., Goldoni P., Gonzalez J.M., Gourgouliatos K., Grabarczyk T., Grandi P., Granot J., Grasso D., Green J., Grube J., Gueta O., Gunji S., Halim A., Harvey M., Collado T.H., Hayashi K., Heller M., Cadena S.H., Hervet O., Hinton J., Hiroshima N., Hnatyk B., Hnatyk R., Hoffmann D., Hofmann W., Holder J., Horan D., Horandel J., Horvath P., Hovatta T., Hrabovsky M., Hrupec D., Hughes G., Hutten M., Iarlori M., Inada T., Inoue S., Insolia A., Ionica M., Iori M., Jacquemont M., Jamrozy M., Janecek P., Martinez I.J., Jin W., Jung-Richardt I., Jurysek J., Kaaret P., Karas V., Karkar S., Kawanaka N., Kerszberg D., Khelifi B., Kissmann R., Knodlseder J., Kobayashi Y., Kohri K., Komin N., Kong A., Kosack K., Kubo H., Palombara N.L., Lamanna G., Lang R.G., Lapington J., Laporte P., Lefaucheur J., Lemoine-Goumard M., Lenain J., Leone F., Leto G., Leuschner F., Lindfors E., Lloyd S., Lohse T., Lombardi S., Longo F., Lopez A., Lopez M., Lopez-Coto R., Loporchio S., Lucarelli F., Luque-Escamilla P.L., Lyard E., Maggio C., Majczyna A., Makariev M., Mallamaci M., Mandat D., Maneva G., Manganaro M., Manico G., Marcowith A., Marculewicz M., Markoff S., Marquez P., Marti J., Martinez O., Martinez M., Martinez G., Martinez-Huerta H., Maurin G., Mazin D., Mbarubucyeye J.D., Miranda D.M., Meyer M., Micanovic S., Miener T., Minev M., Miranda J.M., Mitchell A., Mizuno T., Mode B., Moderski R., Mohrmann L., Molina E., Montaruli T., Moralejo A., Merino J.M., Morcuende-Parrilla D., Morselli A., Mukherjee R., Mundell C., Murach T., Muraishi H., Nagai A., Nakamori T., Nemmen R., Niemiec J., Nieto D., Nievas M., Nikolajuk M., Nishijima K., Noda K., Nosek D., Nozaki S., O'Brien P., Ohira Y., Ohishi M., Oka T., Ong R.A., Orienti M., Orito R., Orlandini M., Orlando E., Osborne J.P., Ostrowski M., Oya I., Pagliaro A., Palatka M., Paneque D., Pantaleo F.R., Paredes J.M., Parmiggiani N., Patricelli B., Pavletic L., Pe'Er A., Pech M., Pecimotika M., Peresano M., Persic M., Petruk O., Pfrang K., Piatteli P., Pietropaolo E., Pillera R., Pilszyk B., Pimentel D., Pintore F., Pita S., Pohl M., Poireau V., Polo M., Prado R.R., Prast J., Principe G., Produit N., Prokoph H., Prouza M., Przybilski H., Pueschel E., Puhlhofer G., Pumo M.L., Punch M., Queiroz F., Quirrenbach A., Rando R., Razzaque S., Rebert E., Recchia S., Reichherzer P., Reimer O., Reimer A., Renier Y., Reposeur T., Rhode W., Ribeiro D., Ribo M., Richtler T., Rico J., Rieger F., Rizi V., Rodriguez J., Fernandez G.R., Ramirez J.C.R., Vazquez J.J.R., Romano P., Romeo G., Roncadelli M., Rosado J., De Leon A.R., Rowell G., Rudak B., Rujopakarn W., Russo F., Sadeh I., Saha L., Saito T., Greus F.S., Sanchez D., Sanchez-Conde M., Sangiorgi P., Sano H., Santander M., Santos E.M., Sanuy A., Sarkar S., Saturni F.G., Sawangwit U., Scherer A., Schleicher B., Schovanek P., Schussler F., Schwanke U., Sciacca E., Scuderi S., Arroyo M.S., Sergijenko O., Servillat M., Seweryn K., Shalchi A., Sharma P., Shellard R.C., Siejkowski H., Sinha A., Sliusar V., Slowikowska A., Sokolenko A., Sol H., Specovius A., Spencer S., Spiga D., Stamerra A., Stanic S., Starling R., Stolarczyk T., Straumann U., Striskovic J., Suda Y., Swierk P., Tagliaferri G., Takahashi H., Takahashi M., Tavecchio F., Taylor L., Tejedor L.A., Temnikov P., Terrier R., Terzic T., Testa V., Tian W., Tibaldo L., Tonev D., Torres D.F., Torresi E., Tosti L., Tothill N., Tovmassian G., Travnicek P., Truzzi S., Tuossenel F., Umana G., Vacula M., Vagelli V., Valentino M., Vallage B., Vallania P., Eldik C.V., Varner G.S., Vassiliev V., Acosta M.V., Vecchi M., Veh J., Vercellone S., Vergani S., Verguilov V., Vettolani G.P., Viana A., Vigorito C.F., Vitale V., Vorobiov S., Vovk I., Vuillaume T., Wagner S.J., Walter R., Watson J., White M., White R., Wiemann R., Wierzcholska A., Will M., Williams D.A., Wischnewski R., Wolter A., Yamazaki R., Yanagita S., Yang L., Yoshikoshi T., Zacharias M., Zaharijas G., Zaric D., Zavrtanik M., Zavrtanik D., Zdziarski A.A., Zech A., Zechlin H., Zhdanov V.I., Zivec M., ITA, USA, GBR, FRA, DEU, ESP, AUS, BRA, BGR, CHL, HRV, FIN, JPN, IRL, MEX, NAM, NLD, POL, CZE, SVN, SWE, CHE, UKR, Astronomy, High Energy Astrophys. & Astropart. Phys (API, FNWI), and Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Gamma ray Astronomy, Cherenkov Telescope Array, axions, MATÉRIA ESCURA, redshift: dependence, Astronomy, Gamma ray experiments, gamma ray experiments, Astrophysics, 01 natural sciences, Cosmology, Observatory, cosmological model: parameter space, gamma ray experiment, High Energy Astrophysical Phenomena (astro-ph.HE), astro-ph.HE, Physics, Cherenkov telescopes, IACT technique, Gamma rays, Cosmic rays, new physics, 4. Education, Settore FIS/01 - Fisica Sperimentale, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma-ray astronomy, violation: Lorentz, 3. Good health, observatory, Extragalactic background light, astro-ph.CO, axion-like particles, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics, gamma ray: propagation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Active galactic nucleus, Axions, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, invariance: Lorentz, jet: relativistic, dark matter: halo, 0103 physical sciences, active galactic nuclei, extragalactic magnetic fields, AGN, Blazar, background, 010308 nuclear & particles physics, Física, Astronomy and Astrophysics, sensitivity, axion, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], absorption, statistical, Blazars, Telescopes
Abstract: Full list of authors: Abdalla, H.; Abe, H.; Acero, F.; Acharyya, A.; Adam, R.; Agudo, I; Aguirre-Santaella, A.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Batista, R. Alves; Amati, L.; Amato, E.; Ambrosi, G.; Anguner, E. O.; Araudo, A.; Armstrong, T.; Arqueros, F.; Arrabito, L.; Asano, K.; Ascasibar, Y.; Ashley, M.; Backes, M.; Balazs, C.; Balbo, M.; Balmaverde, B.; Baquero Larriva, A.; Martins, V. Barbosa; Barkov, M.; Baroncelli, L.; de Almeida, U. Barres; Barrio, J. A.; Batista, P-, I; Becerra Gonzalez, J.; Becherini, Y.; Beck, G.; Tjus, J. Becker; Belmont, R.; Benbow, W.; Bernardini, E.; Berti, A.; Berton, M.; Bertucci, B.; Beshley, V; Bi, B.; Biasuzzi, B.; Biland, A.; Bissaldi, E.; Biteau, J.; Blanch, O.; Bocchino, F.; Boisson, C.; Bolmont, J.; Bonanno, G.; Arbeletche, L. Bonneau; Bonnoli, G.; Bordas, P.; Bottacini, E.; Bottcher, M.; Bozhilov, V; Bregeon, J.; Brill, A.; Brown, A. M.; Bruno, P.; Bruno, A.; Bulgarelli, A.; Burton, M.; Buscemi, M.; Caccianiga, A.; Cameron, R.; Capasso, M.; Caprai, M.; Caproni, A.; Capuzzo-Dolcetta, R.; Caraveo, P.; Carosi, R.; Carosi, A.; Casanova, S.; Cascone, E.; Cauz, D.; Cerny, K.; Cerruti, M.; Chadwick, P.; Chaty, S.; Chen, A.; Chernyakova, M.; Chiaro, G.; Chiavassa, A.; Chytka, L.; Conforti, V; Conte, F.; Contreras, J. L.; Coronado-Blazquez, J.; Cortina, J.; Costa, A.; Costantini, H.; Covino, S.; Cristofari, P.; Cuevas, O.; D'Ammando, F.; Daniel, M. K.; Davies, J.; Dazzi, F.; De Angelis, A.; de Lavergne, M. de Bony; De Caprio, V; dos Anjos, R. de Cassia; Dal Pino, E. M. de Gouveia; De Lotto, B.; De Martino, D.; de Naurois, M.; Wilhelmi, E. de Ona; De Palma, F.; de Souza, V; Delgado, C.; Della Ceca, R.; della Volpe, D.; Depaoli, D.; Di Girolamo, T.; Di Pierro, F.; Diaz, C.; Diaz-Bahamondes, C.; Diebold, S.; Djannati-Atai, A.; Dmytriiev, A.; Dominguez, A.; Donini, A.; Dorner, D.; Doro, M.; Dournaux, J.; Dwarkadas, V. V.; Ebr, J.; Eckner, C.; Einecke, S.; Ekoume, T. R. N.; Elsaesser, D.; Emery, G.; Evoli, C.; Fairbairn, M.; Falceta-Goncalves, D.; Fegan, S.; Feng, Q.; Ferrand, G.; Fiandrini, E.; Fiasson, A.; Fioretti, V; Foffano, L.; Fonseca, M., V; Font, L.; Fontaine, G.; Franco, F. J.; Freixas Coromina, L.; Fukami, S.; Fukazawa, Y.; Fukui, Y.; Gaggero, D.; Galanti, G.; Gammaldi, V; Garcia, E.; Garczarczyk, M.; Gascon, D.; Gaug, M.; Gent, A.; Ghalumyan, A.; Ghirlanda, G.; Gianotti, F.; Giarrusso, M.; Giavitto, G.; Giglietto, N.; Giordano, F.; Glicenstein, J.; Goldoni, P.; Gonzalez, J. M.; Gourgouliatos, K.; Grabarczyk, T.; Grandi, P.; Granot, J.; Grasso, D.; Green, J.; Grube, J.; Gueta, O.; Gunji, S.; Halim, A.; Harvey, M.; Collado, T. Hassan; Hayashi, K.; Heller, M.; Cadena, S. Hernandez; Hervet, O.; Hinton, J.; Hiroshima, N.; Hnatyk, B.; Hnatyk, R.; Hoffmann, D.; Hofmann, W.; Holder, J.; Horan, D.; Horandel, J.; Horvath, P.; Hovatta, T.; Hrabovsky, M.; Hrupec, D.; Hughes, G.; Hutten, M.; Iarlori, M.; Inada, T.; Inoue, S.; Insolia, A.; Ionica, M.; Iori, M.; Jacquemont, M.; Jamrozy, M.; Janecek, P.; Jimenez Martinez, I; Jin, W.; Jung-Richardt, I; Jurysek, J.; Kaaret, P.; Karas, V; Karkar, S.; Kawanaka, N.; Kerszberg, D.; Khelifi, B.; Kissmann, R.; Knodlseder, J.; Kobayashi, Y.; Kohri, K.; Komin, N.; Kong, A.; Kosack, K.; Kubo, H.; La Palombara, N.; Lamanna, G.; Lang, R. G.; Lapington, J.; Laporte, P.; Lefaucheur, J.; Lemoine-Goumard, M.; Lenain, J.; Leone, F.; Leto, G.; Leuschner, F.; Lindfors, E.; Lloyd, S.; Lohse, T.; Lombardi, S.; Longo, F.; Lopez, A.; Lopez, M.; Lopez-Coto, R.; Loporchio, S.; Lucarelli, F.; Luque-Escamilla, P. L.; Lyard, E.; Maggio, C.; Majczyna, A.; Makariev, M.; Mallamaci, M.; Mandat, D.; Maneva, G.; Manganaro, M.; Manico, G.; Marcowith, A.; Marculewicz, M.; Markoff, S.; Marquez, P.; Marti, J.; Martinez, O.; Martinez, M.; Martinez, G.; Martinez-Huerta, H.; Maurin, G.; Mazin, D.; Mbarubucyeye, J. D.; Miranda, D. Medina; Meyer, M.; Micanovic, S.; Miener, T.; Minev, M.; Miranda, J. M.; Mitchell, A.; Mizuno, T.; Mode, B.; Moderski, R.; Mohrmann, L.; Molina, E.; Montaruli, T.; Moralejo, A.; Morales Merino, J.; Morcuende-Parrilla, D.; Morselli, A.; Mukherjee, R.; Mundell, C.; Murach, T.; Muraishi, H.; Nagai, A.; Nakamori, T.; Nemmen, R.; Niemiec, J.; Nieto, D.; Nievas, M.; Nikolajuk, M.; Nishijima, K.; Noda, K.; Nosek, D.; Nozaki, S.; Ohira, Y.; Ohishi, M.; Oka, T.; Ong, R. A.; Orienti, M.; Orito, R.; Orlandini, M.; Orlando, E.; Osborne, J. P.; Ostrowski, M.; Oya, I; Pagliaro, A.; Palatka, M.; Paneque, D.; Pantaleo, F. R.; Paredes, J. M.; Parmiggiani, N.; Patricelli, B.; Pavletic, L.; Pe'er, A.; Pech, M.; Pecimotika, M.; Peresano, M.; Persic, M.; Petruk, O.; Pfrang, K.; Piatteli, P.; Pietropaolo, E.; Pillera, R.; Pilszyk, B.; Pimentel, D.; Pintore, F.; Pita, S.; Pohl, M.; Poireau, V; Polo, M.; Prado, R. R.; Prast, J.; Principe, G.; Produit, N.; Prokoph, H.; Prouza, M.; Przybilski, H.; Pueschel, E.; Puehlhofer, G.; Pumo, M. L.; Punch, M.; Queiroz, F.; Quirrenbach, A.; Rando, R.; Razzaque, S.; Rebert, E.; Recchia, S.; Reichherzer, P.; Reimer, O.; Reimer, A.; Renier, Y.; Reposeur, T.; Rhode, W.; Ribeiro, D.; Ribo, M.; Richtler, T.; Rico, J.; Rieger, F.; Rizi, V; Rodriguez, J.; Fernandez, G. Rodriguez; Ramirez, J. C. Rodriguez; Rodriguez Vazquez, J. J.; Romano, P.; Romeo, G.; Roncadelli, M.; Rosado, J.; de Leon, A. Rosales; Rowell, G.; Rudak, B.; Rujopakarn, W.; Russo, F.; Sadeh, I; Saha, L.; Saito, T.; Greus, F. Salesa; Sanchez, D.; Sanchez-Conde, M.; Sangiorgi, P.; Sano, H.; Santander, M.; Santos, E. M.; Sanuy, A.; Sarkar, S.; Saturni, F. G.; Sawangwit, U.; Scherer, A.; Schleicher, B.; Schovanek, P.; Schussler, F.; Schwanke, U.; Sciacca, E.; Scuderi, S.; Arroyo, M. Seglar; Sergijenko, O.; Servillat, M.; Seweryn, K.; Shalchi, A.; Sharma, P.; Shellard, R. C.; Siejkowski, H.; Sinha, A.; Sliusar, V; Slowikowska, A.; Sokolenko, A.; Sol, H.; Specovius, A.; Spencer, S.; Spiga, D.; Stamerra, A.; Starling, R.; Stolarczyk, T.; Straumann, U.; Striskovic, J.; Suda, Y.; Tagliaferri, G.; Takahashi, H.; Takahashi, M.; Tavecchio, F.; Taylor, L.; Tejedor, L. A.; Temnikov, P.; Terrier, R.; Terzic, T.; Testa, V; Tian, W.; Tibaldo, L.; Tonev, D.; Torres, D. F.; Torresi, E.; Tosti, L.; Tothill, N.; Tovmassian, G.; Travnicek, P.; Truzzi, S.; Tuossenel, F.; Umana, G.; Vacula, M.; Vagelli, V.; Valentino, M.; Vallage, B.; Vallania, P.; van Eldik, C.; Varner, G. S.; Vassiliev, V.; Vazquez Acosta, M.; Vecchi, M.; Veh, J.; Vercellone, S.; Vergani, S.; Verguilov, V.; Vettolani, G. P.; Viana, A.; Vigorito, C. F.; Vitale, V.; Vorobiov, S.; Vovk, I; Vuillaume, T.; Wagner, S. J.; Walter, R.; Watson, J.; White, M.; White, R.; Wiemann, R.; Wierzcholska, A.; Will, M.; Williams, D. A.; Wischnewski, R.; Wolter, A.; Yamazaki, R.; Yanagita, S.; Yang, L.; Yoshikoshi, T.; Zacharias, M.; Zaharijas, G.; Zaric, D.; Zavrtanik, M.; Zavrtanik, D.; Zdziarski, A. A.; Zech, A.; Zechlin, H.; Zhdanov, V., I; Zivec, M., The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for γ astronomy, provides unique capabilities to address significant open questions in astrophysics, cosmology, and fundamental physics. We study some of the salient areas of γ cosmology that can be explored as part of the Key Science Projects of CTA, through simulated observations of active galactic nuclei (AGN) and of their relativistic jets. Observations of AGN with CTA will enable a measurement of γ absorption on the extragalactic background light with a statistical uncertainty below 15% up to a redshift z=2 and to constrain or detect γ halos up to intergalactic-magnetic-field strengths of at least 0.3 pG . Extragalactic observations with CTA also show promising potential to probe physics beyond the Standard Model. The best limits on Lorentz invariance violation from γ astronomy will be improved by a factor of at least two to three. CTA will also probe the parameter space in which axion-like particles could constitute a significant fraction, if not all, of dark matter. We conclude on the synergies between CTA and other upcoming facilities that will foster the growth of γ cosmology. © 2021 IOP Publishing Ltd and Sissa Medialab., We gratefully acknowledge financial support from the following agencies and organizations: State Committee of Science of Armenia, Armenia; The Australian Research Council, Astronomy Australia Ltd, The University of Adelaide, Australian National University, Monash University, The University of New South Wales, The University of Sydney, Western Sydney University, Australia; Federal Ministry of Education, Science and Research, and Innsbruck University, Austria; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Ministry of Science, Technology, Innovations and Communications (MCTIC), Brasil; Ministry of Education and Science, National RI Roadmap Project DO1-153/28.08.2018, Bulgaria; The Natural Sciences and Engineering Research Council of Canada and the Canadian Space Agency, Canada; CONICYT-Chile grants CATA AFB 170002, ANID PIA/APOYO AFB 180002, ACT 1406, FONDECYT-Chile grants, 1161463, 1170171, 1190886, 1171421, 1170345, 1201582, Gemini-ANID 32180007, Chile; Croatian Science Foundation, Rudjer Boskovic Institute, University of Osijek, University of Rijeka, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Zagreb, Faculty of Electrical Engineering and Computing, Croa tia; Ministry of Education, Youth and Sports, MEYS M2015046, LM2018105, LTT17006, EU/MEYS CZ.02.1.01/0.0/0.0/16_013/0001403, CZ.02.1.01/0.0/0.0/18_046/0016007 and CZ.02.1.01/0.0/0.0/16_019/0000754, Czech Republic; Academy of Finland (grant nr.317636 and 320045), Finland; Ministry of Higher Education and Research, CNRS-INSU and CNRS-IN2P3, CEA-Irfu, ANR, Regional Council Ile de France, Labex ENIGMASS, OCEVU, OSUG2020 and P2IO, France; Max Planck Society, BMBF, DESY, Helmholtz Association, Germany; Department of Atomic Energy, Department of Science and Technology, India; Istituto Nazionale di Astrofisica (INAF), Istituto Nazionale di Fisica Nucleare (INFN), MIUR, Istituto Nazionale di Astrofisica (INAF-OABRERA) Grant Fondazione Cariplo/Regione Lombardia ID 2014-1980/RST_ERC, Italy; ICRR, University of Tokyo, JSPS, MEXT, Japan; Netherlands Research School for Astronomy (NOVA), Netherlands Organization for Scientific Research (NWO), Netherlands; University of Oslo, Norway; Ministry of Science and Higher Education, DIR/WK/2017/12, the National Centre for Research and Development and the National Science Centre, UMO-2016/22/M/ST9/00583, Poland; Slovenian Research Agency, grants P1-0031, P1-0385, I0-0033, J1-9146, J1-1700, N1-0111, and the Young Researcher program, Slovenia; South African Department of Science and Technology and National Research Foundation through the South African Gamma-Ray Astronomy Programme, South Africa; The Spanish groups acknowledge the Spanish Ministry of Science and Innovation and the Spanish Research State Agency (AEI) through grants AYA2016-79724-C4-1-P, AYA2016-80889-P, AYA2016-76012-C3-1-P, BES-2016-076342, FPA2017-82729-C6-1-R, FPA2017-82729-C6-2-R, FPA2017-82729-C6-3-R, FPA2017-82729-C6-4-R, FPA2017-82729-C6-5-R, FPA2017-82729-C6-6-R, PGC2018-095161-B-I00, PGC2018-095512-B-I00, PID2019-107988GB-C22; the “Centro de Excelencia Severo Ochoa” program through grants no. SEV-2016-0597, SEV-2016-0588, SEV-2017-0709, CEX2019-000920-S; the “Unidad de Excelencia María de Maeztu” program through grant no. MDM-2015-0509; the “Ramón y Cajal” programme through grants RYC-2013-14511, RYC-2017-22665; and the MultiDark Consolider Network FPA2017-90566-REDC. They also acknowledge the Atracción de Talento contract no. 2016-T1/TIC-1542 granted by the Comunidad de Madrid; the “Postdoctoral Junior Leader Fellowship” programme from La Caixa Bank ing Foundation, grants no. LCF/BQ/LI18/11630014 and LCF/BQ/PI18/11630012; the “Programa Operativo” FEDER 2014-2020, Consejería de Economía y Conocimiento de la Junta de Andalucía (Ref. 1257737), PAIDI 2020 (Ref. P18-FR-1580) and Universidad de Jaén; “Programa Operativo de Crecimiento Inteligente” FEDER 2014-2020 (Ref. ESFRI-2017-IAC-12), Ministerio de Ciencia e Innovación, 15% co-financed by Consejería de Economía, Industria, Comercio y Conocimiento del Gobierno de Canarias; the Spanish AEI EQC2018-005094-P FEDER 2014-2020; the European Union’s “Horizon 2020” research and innovation programme under Marie Skłodowska-Curie grant agreement no. 665919; and the ESCAPE project with grant no. GA:824064; Swedish Research Council, Royal Physiographic Society of Lund, Royal Swedish Academy of Sciences, The Swedish National Infrastructure for Computing (SNIC) at Lunarc (Lund), Sweden; State Secretariat for Education, Research and Innovation (SERI) and Swiss National Science Foundation (SNSF), Switzerland; Durham University, Leverhulme Trust, Liverpool University, University of Leicester, University of Oxford, Royal Soci ety, Science and Technology Facilities Council, UK; U.S. National Science Foundation, U.S. Department of Energy, Argonne National Laboratory, Barnard College, University of California, University of Chicago, Columbia University, Georgia Institute of Technology, Institute for Nuclear and Particle Astrophysics (INPAC-MRPI program), Iowa State University, the Smithsonian Institution, Washington University McDonnell Center for the Space Sciences, The University of Wisconsin and the Wisconsin Alumni Research Foundation, USA. The research leading to these results has received funding from the European Union’s Seventh Framework Programme (FP7/2007-2013) under grant agreements No 262053 and No 317446. This project is receiving funding from the European Union’s Horizon 2020 research and innovation programs under agreement No 676134. The research leading to these results has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement GammaRayCascades No 843800. The Fermi LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat à l’Energie Atomique and the Centre National de la Recherche Scientifique / Institut National de Physique Nucléaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Études Spatiales in France. This work performed in part under DOE Contract DE-AC02-76SF00515.
Published: 2021
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3. The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope

Author: Michael Kreter, Carmelo Sgrò, Riccardo Rando, Leonid Petrov, E. Nuss, M. Kuss, Nicola Omodei, M. Orienti, Diego F. Torres, M. Yassine, E. Hays, Francesco Massaro, G. Jóhannesson, L. S. Ojha, S. Harita, Frank K. Schinzel, Marco Ajello, E. Orlando, S. Maldera, B. Lott, R. Itoh, Jean Ballet, S. Garrappa, G. Martí-Devesa, F. Piron, G. M. Madejski, Francesco Longo, Manuel Meyer, Eleonora Torresi, R. Bonino, Giacomo Principe, Stefano Ciprini, J. Li, E. Troja, Marcello Giroletti, Nestor Mirabal, A. Reimer, Stefan Funk, P. van Zyl, Melissa Pesce-Rollins, Eugenio Bottacini, J. F. Ormes, P. Fusco, F. Gargano, Elliott D. Bloom, C. Leto, F. Fana Dirirsa, N. Di Lalla, C. C. Cheung, J. Valverde, Stefan Larsson, Sylvain Guiriec, Alberto Manfreda, Denis Bastieri, Z. Pei, A. Morselli, Igor V. Moskalenko, Soebur Razzaque, P. de la Torre Luque, Mn Mazziotta, Elizabeth C. Ferrara, Olaf Reimer, Justin D. Finke, I. A. Grenier, M. Razzano, F. de Palma, Filippo D'Ammando, D. J. Suson, D. Costantin, Nicola Giglietto, Yutaro Tachibana, Vaidehi S. Paliya, F. Loparco, R. Angioni, E. Cavazzuti, M. N. Lovellette, P. Lubrano, J. Becerra González, H. Poon, Gloria Spandre, E. J. Siskind, Giulia Migliori, Aaron Dominguez, Elisabetta Bissaldi, R. A. Cameron, David A. Green, Rodrigo Nemmen, D. J. Thompson, D. Horan, P. Bruel, Magnus Axelsson, R. de Menezes, Anna Franckowiak, S. Buson, Ioannis Liodakis, S. Rainò, Tsunefumi Mizuno, Yasushi Fukazawa, P. Spinelli, Ronaldo Bellazzini, Francesco Giordano, Fabio Cafardo, Bindu Rani, Dario Gasparrini, Felicia Krauss, Abhishek Desai, Sina Chen, L. Di Venere, Roopesh Ojha, H. A. Peña-Herazo, Massimo Persic, D. Serini, Guido Barbiellini, I. Mereu, S. Cutini, M. E. Monzani, M. Negro, Miloš Kovačević, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, National Aeronautics and Space Administration (US), Department of Energy (US), Commissariat à l'Ènergie Atomique et aux Ènergies Alternatives (France), Centre National de la Recherche Scientifique (France), Institut National de Physique Nucléaire et de Physique des Particules (France), Agenzia Spaziale Italiana, Istituto Nazionale di Fisica Nucleare, Ministry of Education, Culture, Sports, Science and Technology (Japan), High Energy Accelerator Research Organization (Japan), Japan Aerospace Exploration Agency, Knut and Alice Wallenberg Foundation, Swedish Research Council, Swedish National Space Board, Istituto Nazionale di Astrofisica, Ajello, M., Angioni, R., Axelsson, M., Ballet, J., Barbiellini, G., Bastieri, D., Becerra Gonzalez, J., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Bruel, P., Buson, S., Cafardo, F., Cameron, R. A., Cavazzuti, E., Chen, S., Cheung, C. C., Ciprini, S., Costantin, D., Cutini, S., D'Ammando, F., De La Torre Luque, P., De Menezes, R., De Palma, F., Desai, A., Di Lalla, N., Di Venere, L., Dominguez, A., Dirirsa, F. F., Ferrara, E. C., Finke, J., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Garrappa, S., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guiriec, S., Harita, S., Hays, E., Horan, D., Itoh, R., Johannesson, G., Kovac'Evic', M., Krauss, F., Kreter, M., Kuss, M., Larsson, S., Leto, C., Li, J., Liodakis, I., Longo, F., Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Maldera, S., Manfreda, A., Marti-Devesa, G., Massaro, F., Mazziotta, M. N., Mereu, I., Meyer, M., Migliori, G., Mirabal, N., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nemmen, R., Nuss, E., Ojha, L. S., Ojha, R., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paliya, V. S., Pei, Z., Peña-Herazo, H., Persic, M., Pesce-Rollins, M., Petrov, L., Piron, F., Poon, H., Principe, G., Raino, S., Rando, R., Rani, B., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Schinzel, F. K., Serini, D., Sgro, C., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tachibana, Y., Thompson, D. J., Torres, D. F., Torresi, E., Troja, E., Valverde, J., Van Zyl, P., Yassine, M., 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), and 33379009 - Kreter, Michael
Subjects: galaxies [Gamma rays], Astrophysics, Blazar, 01 natural sciences, law.invention, observations [Gamma rays], Spitzer Space Telescope, Astrophysical jet, law, Relativistic jet, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Quasar, Physics, education.field_of_study, Galaxies: active, Quasars: general, Gamma rays: galaxies, Gamma-ray source, BL Lacertae objects, Astrophysics - High Energy Astrophysical Phenomena, Active galactic nucleus, active [Galaxies], Astrophysics::High Energy Astrophysical Phenomena, Population, BL Lacertae objetcs: general, Astrophysics::Cosmology and Extragalactic Astrophysics, Gamma rays: observations, Telescope, 0103 physical sciences, Active galactic nuclei, Blazars, Gamma-ray sources, Relativistic jets, Quasars, education, Astrophysics::Galaxy Astrophysics, 010308 nuclear & particles physics, general [Quasars], Astronomy and Astrophysics, general [BL Lacertae objetcs], [SDU]Sciences of the Universe [physics], Galaxies: jets, Space and Planetary Science, jets [Galaxies], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope
Abstract: The fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains 2863 objects located at high Galactic latitudes (|b| > 10°). It includes 85% more sources than the previous 3LAC catalog based on 4 yr of data. AGNs represent at least 79% of the high-latitude sources in the fourth Fermi-Large Area Telescope Source Catalog (4FGL), which covers the energy range from 50 MeV to 1 TeV. In addition, 344 gamma-ray AGNs are found at low Galactic latitudes. Most of the 4LAC AGNs are blazars (98%), while the remainder are other types of AGNs. The blazar population consists of 24% Flat Spectrum Radio Quasars (FSRQs), 38% BL Lac-type objects, and 38% blazar candidates of unknown types (BCUs). On average, FSRQs display softer spectra and stronger variability in the gamma-ray band than BLQLacs do, confirming previous findings. All AGNs detected by ground-based atmospheric Cerenkov telescopes are also found in the 4LAC., The Fermi LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat `a l’Energie Atomique and the Centre National de la Recherche Scientifique / Institut National de Physique Nucl´eaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Etudes Spatiales in France. This work performed in part under DOE Contract DE- AC02-76SF00515. This research has made use of data obtained from the high-energy Astrophysics Science Archive Research Center (HEASARC) provided by NASA’s Goddard Space Flight Center; the SIMBAD database operated at CDS, Strasbourg, France; the NASA/IPAC Extragalactic Database (NED) operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research has made use of data archives, catalogs and software tools from the ASDC, a facility managed by the Italian Space Agency (ASI). Part of this work is based on the NVSS (NRAO VLA Sky Survey). The National Radio Astronomy Observatory is operated by Associated Universities, Inc., under contract with the National Science Foundation. This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. This publication makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web Site is http://www.sdss.org/. The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington.
Published: 2020
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4. A Search for Cosmic-ray Proton Anisotropy with the Fermi Large Area Telescope

Author: Eleonora Troja, Soebur Razzaque, Ronaldo Bellazzini, Giacomo Principe, F. Piron, G. Chiaro, M. Kuss, Abhishek Desai, Kazuhiko Hayashi, Regina Caputo, T. A. Porter, E. Orlando, Dario Gasparrini, Hiroyasu Tajima, Keith Bechtol, S. Maldera, Stefano Ciprini, Ioannis Liodakis, E. J. Siskind, Francesco Longo, G. Martí-Devesa, Marco Ajello, J. B. Thayer, S. Rainò, Tsunefumi Mizuno, Matthew Meehan, Olaf Reimer, D. Horan, V. S. Paliya, D. Serini, Diego F. Torres, M. Razzano, Yasushi Fukazawa, Filippo D'Ammando, A. Reimer, Justin Vandenbroucke, G. Jóhannesson, F. de Palma, Manuel Meyer, Alessandro Cuoco, Guido Barbiellini, P. Fusco, I. Mereu, T. J. Brandt, Melissa Pesce-Rollins, Seth Digel, David A. Green, S. J. Fegan, Elizabeth Hays, Peter F. Michelson, Marcello Giroletti, D. J. Suson, S. Cutini, J. W. Hewitt, Eric Nuss, Sina Chen, Massimo Persic, Carmelo Sgrò, Riccardo Rando, G. Spandre, N. Di Lalla, Luca Baldini, Sylvain Guiriec, Mn Mazziotta, D. Costantin, Stephan Zimmer, David Paneque, Luca Latronico, P. de la Torre Luque, Elisabetta Bissaldi, Stefan Funk, Denis Bastieri, Eugenio Bottacini, Alberto Manfreda, Roger Blandford, Nicola Omodei, Johann Cohen-Tanugi, M. Orienti, L. Di Venere, F. Loparco, Nicola Giglietto, Aaron Dominguez, I. A. Grenier, E. Cavazzuti, M. Yassine, R. Bonino, Nestor Mirabal, P. Lubrano, S. Buson, J. Li, Matteo Negro, A. Morselli, R. A. Cameron, P. Bruel, Warit Mitthumsiri, P. Spinelli, Francesco Giordano, F. Gargano, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Fermi-LAT, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-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)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Ajello, M., Baldini, L., Barbiellini, G., Bastieri, D., Bechtol, K., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Brandt, T. J., Bruel, P., Buson, S., Cameron, R. A., Caputo, R., Cavazzuti, E., Chen, S., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Costantin, D., Cuoco, A., Cutini, S., D’Ammando, F., de la Torre Luque, P., de Palma, F., Desai, A., Digel, S. W., Di Lalla, N., Di Venere, L., Domínguez, A., Fegan, S. J., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guiriec, S., Hayashi, K., Hays, E., Hewitt, J. W., Horan, D., Jóhannesson, G., Kuss, M., Latronico, L., Li, J., Liodakis, I., Longo, F., Loparco, F., Lubrano, P., Maldera, S., Manfreda, A., Martí-Devesa, G., Mazziotta, M. N., Meehan, M., Mereu, I., Meyer, M., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Morselli, A., Negro, M., Nuss, E., Omodei, N., Orienti, M., Orlando, E., Paliya, V. S., Paneque, D., Persic, M., Pesce-Rollins, M., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Serini, D., Sgrò, C., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Thayer, J. B., Torres, D. F., Troja, E., Vandenbroucke, J., Yassine, M., Zimmer, S., Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Fermi-Lat Collaboration, T., D'Ammando, F., De La Torre Luque, P., De Palma, F., Dominguez, A., Johannesson, G., Marti-Devesa, G., Raino, S., Sgro, C., ITA, and USA
Subjects: 010504 meteorology & atmospheric sciences, Proton, High-energy astronomy, Astrophysics::High Energy Astrophysical Phenomena, Galactic cosmic rays, High-energy astrophysics, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, cosmic radiation: anisotropy, GLAST, Galactic cosmic ray, law.invention, Telescope, Primary (astronomy), law, 0103 physical sciences, Nuclear Experiment, Anisotropy, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, cosmic radiation: primary, p: energy, 13. Climate action, Space and Planetary Science, p: cosmic radiation, anisotropy: dipole, ddc:520, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope
Abstract: The Fermi Large Area Telescope (LAT) has amassed a large data set of primary cosmic-ray protons throughout its mission. The LAT's wide field of view and full-sky survey capabilities make it an excellent instrument for studying cosmic-ray anisotropy. As a space-based survey instrument, the LAT is sensitive to anisotropy in both right ascension and declination, while ground-based observations only measure the anisotropy in right ascension. We present the results of the first ever proton anisotropy search using Fermi LAT. The data set uses eight years of data and consists of approximately 179 million protons above 78 GeV, enabling it to probe dipole anisotropy below an amplitude of $10^{-3}$, resulting in the most stringent limits on the declination dependence of the dipole to date. We measure a dipole amplitude $\delta = 3.9\pm1.5 \times 10^{-4}$ with a p-value of 0.01 (pre-trials) for protons with a minimum energy of 78 GeV. We discuss various systematic effects that could give rise to a dipole excess and calculate upper limits on the dipole amplitude as a function of minimum energy. The 95% CL upper limit on the dipole amplitude is $\delta_{UL}=1.3\times 10^{-3}$ for protons with a minimum energy of 78 GeV and $\delta_{UL}=1.2 \times 10^{-3}$ for protons with a minimum energy of 251 GeV., Comment: 15 pages, 11 figures, Contact authors: Matthew Meehan (mrmeehan@wisc.edu) and Justin Vandenbroucke (justin.vandenbroucke@wisc.edu)
Published: 2019
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5. Challenges in reconciling observations and theory of the brightest high-energy flare ever of 3C 279

Author: Elena Pian, Werner Collmar, Dario Gasparrini, Eugenio Bottacini, and Markus Böttcher
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Swift, Physics, Supermassive black hole, High energy, Multidisciplinary, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy, Quasar, Astrophysics::Cosmology and Extragalactic Astrophysics, law.invention, law, Physics::Space Physics, Spectral energy distribution, Astrophysics::Solar and Stellar Astrophysics, Blazar, Astrophysics - High Energy Astrophysical Phenomena, computer, computer.programming_language, Flare, Fermi Gamma-ray Space Telescope
Abstract: Recent high-energy missions have allowed keeping watch over blazars in flaring states, which provide deep insights into the engine powered by supermassive black holes. However, having a quasar caught in a very bright flaring state is not easy requiring long surveys. Therefore, the observation of such flaring events represents a goldmine for theoretical studies. Such a flaring event was captured by the INTEGRAL mission in June 2015 while performing its (as of today) deepest extragalactic survey when it caught the prominent blazar 3C~279 in its brightest flare ever recorded at gamma-ray energies. The flare was simultaneously recorded by the Fermi gamma-ray mission, by the Swift mission, by the INTEGRAL mission and by observations ranging from UV, through optical to the near-IR bands. The derived snapshot of this broad spectral energy distribution of the flare has been modeled in the context of a one-zone radiation transfer leptonic and lepto-hadronic models constraining the single emission components. The derived parameters of both models challenge the physical conditions in the jet. However, very recently published very-high-energy (VHE) data at TeV energies are very close to our lepto-hadronic model., ICRC 2017 conference proceeding
Published: 2018

6. Search for Spatial Extension in High-Latitude Sources Detected by the Fermi Large Area Telescope

Author: R. Buehler, J. Li, Marcello Giroletti, G. Tosti, I. A. Grenier, Regina Caputo, Soebur Razzaque, M. N. Mazziotta, E. Cavazzuti, Anna Franckowiak, Justin D. Finke, David H. Green, S. Rainò, Tsunefumi Mizuno, Hiroyasu Tajima, Yasushi Fukazawa, P. Fusco, Gloria Spandre, T. J. Brandt, E. Hays, Diego F. Torres, Marco Ajello, J. B. Thayer, M. Vogel, C. C. Cheung, G. Jóhannesson, J. Valverde, P. Lubrano, Jonathan Biteau, T. Reposeur, J. D. Magill, Manuel Meyer, Nicola Omodei, Johann Cohen-Tanugi, L. Di Venere, Melissa Pesce-Rollins, N. Di Lalla, M. Lemoine-Goumard, Luca Baldini, Bindu Rani, M. Palatiello, Stefano Ciprini, Luca Latronico, Sylvain Guiriec, T. A. Porter, F. Piron, R. Bonino, D. Costantin, Abhishek Desai, A. Reimer, Elliott D. Bloom, Vaidehi S. Paliya, L. Guillemot, S. Cutini, F. Loparco, J. F. Ormes, E. Orlando, Igor V. Moskalenko, Eric Charles, Ronaldo Bellazzini, D. J. Suson, K. S. Wood, Olaf Reimer, D. Horan, M. E. Monzani, Dario Gasparrini, J. S. Perkins, Roger Blandford, Eugenio Bottacini, Gabrijela Zaharijas, Alberto Manfreda, Massimo Persic, J. Ballet, C. Favuzzi, Nicola Giglietto, Francesco Longo, Elisabetta Bissaldi, Filippo D'Ammando, S. Kensei, Matteo Negro, A. Morselli, E. J. Siskind, J. Bregeon, J. W. Hewitt, Guido Barbiellini, Denis Bastieri, Julie McEnery, M. Orienti, Markus Ackermann, M. N. Lovellette, P. A. Caraveo, S. Maldera, L. Tibaldo, F. Gargano, Stefan Larsson, M. Di Mauro, P. Spinelli, Francesco Giordano, R. A. Cameron, P. Bruel, Tonia M. Venters, Matthew Wood, Daniel Castro, F. de Palma, G. Chiaro, Carmelo Sgrò, Riccardo Rando, E. Nuss, David Paneque, M. Kuss, Stefan Funk, Giacomo Principe, 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 Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-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), 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 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), Fermi-LAT, Ackermann, M., Ajello, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caraveo, P. A., Castro, D., Cavazzuti, E., Charles, E., Cheung, C. C., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Costantin, D., Cutini, S., D'Ammando, F., De Palma, F., Desai, A., Di Lalla, N., Di Mauro, M., Di Venere, L., Favuzzi, C., Finke, J., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Hays, E., Hewitt, J. W., Horan, D., Jóhannesson, G., Kensei, S., Kuss, M., Larsson, S., Latronico, L., Lemoine-Goumard, M., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mazziotta, M. N., Mcenery, J. E., Meyer, M., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Palatiello, M., Paliya, V. S., Paneque, D., Perkins, J. S., Persic, M., Pesce-Rollins, M., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Rani, B., Razzaque, S., Reimer, A., Reimer, O., Reposeur, T., Sgrò, C., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Thayer, J. B., Tibaldo, L., Torres, D. F., Tosti, G., Valverde, J., Venters, T. M., Vogel, M., Wood, K., Wood, M., Zaharijas, G., Biteau, J., Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-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), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and ITA
Subjects: catalog, Active galactic nucleus, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, BL Lacertae objects: general, catalogs, gamma rays: general, ISM: H II Regions, ISM: supernova remnants, 01 natural sciences, law.invention, Telescope, law, 0103 physical sciences, Astronomy and Astrophysics, Space and Planetary Science, H II Region [ISM], 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Background radiation, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, general [BL Lacertae objects], Astronomy and Astrophysic, Supernova, Crab Nebula, [SDU]Sciences of the Universe [physics], ISM: H ii Regions, ddc:520, Intergalactic travel, supernova remnant [ISM], Halo, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal / Supplement series 237(2), 32 (2018). doi:10.3847/1538-4365/aacdf7, We present a search for spatial extension in high-latitude ($| b| \gt 5^\circ $) sources in recent Fermi point source catalogs. The result is the Fermi High-Latitude Extended Sources Catalog, which provides source extensions (or upper limits thereof) and likelihood profiles for a suite of tested source morphologies. We find 24 extended sources, 19 of which were not previously characterized as extended. These include sources that are potentially associated with supernova remnants and star-forming regions. We also found extended $γ$-ray emission in the vicinity of the Cen A radio lobes and—at GeV energies for the first time—spatially coincident with the radio emission of the SNR CTA 1, as well as from the Crab Nebula. We also searched for halos around active galactic nuclei, which are predicted from electromagnetic cascades induced by the $e^+ e^−$ pairs that are deflected in intergalactic magnetic fields. These pairs are produced when γ-rays interact with background radiation fields. We do not find evidence for extension in individual sources or in stacked source samples. This enables us to place limits on the flux of the extended source components, which are then used to constrain the intergalactic magnetic field to be stronger than $3 × 10^{−16} G$ for a coherence length $λ \gtrsim$ 10 kpc, even when conservative assumptions on the source duty cycle are made. This improves previous limits by several orders of magnitude., Published by IOP, Chicago, Ill. [u.a.]
Published: 2018
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7. Investigating the Nature of Late-Time High-Energy GRB Emission Through Joint Fermi\Swift Observations

Author: Daniel Kocevski, Giacomo Principe, Elisabetta Bissaldi, Vaidehi S. Paliya, P. Spinelli, M. E. Monzani, Melissa Pesce-Rollins, Francesco Giordano, G. Tosti, M. Vogel, Matteo Negro, A. Morselli, F. Piron, N. Di Lalla, Luca Baldini, Sylvain Guiriec, Diego F. Torres, D. Costantin, C. Holt, Olaf Reimer, Carmelo Sgrò, Riccardo Rando, Nicola Omodei, G. La Mura, P. Fusco, Stefan Larsson, Aaron Dominguez, G. Jóhannesson, Guido Barbiellini, I. A. Grenier, R. A. Cameron, P. Lubrano, Stefano Ciprini, M. Kuss, David H. Green, P. Bruel, Denis Bastieri, E. J. Siskind, M. Razzano, Soebur Razzaque, Marco Ajello, Gloria Spandre, C. Favuzzi, Dario Gasparrini, Ronaldo Bellazzini, J. B. Thayer, M. N. Mazziotta, Filippo D'Ammando, Stefan Funk, J. Valverde, Regina Caputo, J. D. Magill, Massimo Persic, Francesco Longo, J. S. Perkins, M. Orienti, F. Loparco, Eric Nuss, K. S. Wood, D. Tak, R. Buehler, Nicola Giglietto, Johan Bregeon, S. Maldera, D. Horan, J. L. Racusin, Anna Franckowiak, R. Bonino, A. Reimer, S. Rainò, J. Li, Peter F. Michelson, Marcello Giroletti, Eugenio Bottacini, Tsunefumi Mizuno, P. A. Caraveo, Alberto Manfreda, Johann Cohen-Tanugi, F. Gargano, Roger Blandford, F. de Palma, M. Di Mauro, G. Chiaro, L. Di Venere, Yasushi Fukazawa, E. Orlando, Laboratoire Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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), Fermi-LAT, Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Raunvísindastofnun (HÍ), Science Institute (UI), Verkfræði- og náttúruvísindasvið (HÍ), School of Engineering and Natural Sciences (UI), Háskóli Íslands (HÍ), University of Iceland (UI), ITA, Ajello, M., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caraveo, P. A., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Costantin, D., D'Ammando, F., De Palma, F., Di Lalla, N., Di Mauro, M., Di Venere, L., Dominguez, A., Favuzzi, C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guiriec, S., Holt, C., Horan, D., Jóhannesson, G., Kocevski, D., Kuss, M., Mura, G. La, Larsson, S., Li, J., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mazziotta, M. N., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Negro, M., Nuss, E., Omodei, N., Orienti, M., Orlando, E., Paliya, V. S., Perkins, J. S., Persic, M., Pesce-Rollins, M., Piron, F., Principe, G., Racusin, J. L., Raino, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Sgro, C., Siskind, E. J., Spandre, G., Spinelli, P., Tak, D., Thayer, J. B., Torres, D. F., Tosti, G., Valverde, J., Vogel, M., Wood, K., Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Sjónaukar, long-lived, Gammageislar, Astrophysics::High Energy Astrophysical Phenomena, Population, gamma-ray burst: general, electron: relativistic, FOS: Physical sciences, magnetic field, Gamma-ray burst: general, Astronomy and Astrophysics, Space and Planetary Science, Astrophysics, general [gamma-ray burst], gamma ray: burst, 7. Clean energy, 01 natural sciences, GLAST, law.invention, Telescope, law, 0103 physical sciences, synchrotron, ddc:530, X-ray: emission, energy: density, education, Gamma-ray burst, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), education.field_of_study, energy: high, 010308 nuclear & particles physics, Gamma ray, Compton scattering, Astronomy and Astrophysic, Synchrotron, Afterglow, electron: spectrum, flux, electron synchrotron, spectral, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], X-ray: detector, Fermi Gamma-ray Space Telescope
Abstract: Publisher's version (útgefin grein)., We use joint observations by the Swift X-ray Telescope (XRT) and the Fermi Large Area Telescope (LAT) of gamma-ray burst (GRB) afterglows to investigate the nature of the long-lived high-energy emission observed by Fermi LAT. Joint broadband spectral modeling of XRT and LAT data reveals that LAT nondetections of bright X-ray afterglows are consistent with a cooling break in the inferred electron synchrotron spectrum below the LAT and/or XRT energy ranges. Such a break is sufficient to suppress the high-energy emission so as to be below the LAT detection threshold. By contrast, LAT-detected bursts are best fit by a synchrotron spectrum with a cooling break that lies either between or above the XRT and LAT energy ranges. We speculate that the primary difference between GRBs with LAT afterglow detections and the nondetected population may be in the type of circumstellar environment in which these bursts occur, with late-time LAT detections preferentially selecting GRBs that occur in low wind-like circumburst density profiles. Furthermore, we find no evidence of high-energy emission in the LATdetected population significantly in excess of the flux expected from the electron synchrotron spectrum fit to the observed X-ray emission. The lack of excess emission at high energies could be due to a shocked external medium in which the energy density in the magnetic field is stronger than or comparable to that of the relativistic electrons behind the shock, precluding the production of a dominant synchrotron self-Compton (SSC) component in the LAT energy range. Alternatively, the peak of the SSC emission could be beyond the 0.1–100 GeV energy range considered for this analysis., Funding text #1 46 Funded by contract FIRB-2012-RBFR12PM1F from the Italian Ministry of Education, University and Research (MIUR). 47 https://fermi.gsfc.nasa.gov/ssc/observations/types/grbs/lat_grbs/ Funding text #2 The Fermi LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT, as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States; the Commissariat à l’Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucléaire et de Physique des Particules in France; the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy; the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK), and Japan Aerospace Exploration Agency (JAXA) in Japan; and the K.A.Wallenberg Foundation, the Swedish Research Council, and the Swedish National Space Board in Sweden. Funding text #3 Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Études Spatiales in France. This work performed in part under DOE Contract DE-AC02-76SF00515.
Published: 2018
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8. Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope

Author: J. B. Thayer, A. Chekhtman, P. Lubrano, Stefano Ciprini, Luca Latronico, Igor V. Moskalenko, Eleonora Troja, M. Razzano, Carmelo Sgrò, Riccardo Rando, J. F. Ormes, Filippo D'Ammando, Olaf Reimer, D. Horan, Roger Blandford, E. Nuss, Elliott D. Bloom, David Paneque, M. Kuss, R. Buehler, C. C. Cheung, J. Valverde, C. Favuzzi, Vaidehi S. Paliya, F. de Palma, P. Fusco, Julie McEnery, F. Spada, J. Li, Francesco Longo, Johann Cohen-Tanugi, Peter F. Michelson, Marcello Giroletti, S. J. Fegan, Stefan Larsson, L. Di Venere, J. D. Magill, Gabrijela Zaharijas, Stefan Funk, Roopesh Ojha, R. Bonino, Regina Caputo, J. G. Thayer, Eric Charles, Daniel Kocevski, I. A. Grenier, N. Di Lalla, Luca Baldini, M. Palatiello, Steven Ritz, D. J. Suson, M. N. Mazziotta, Warit Mitthumsiri, Sylvain Guiriec, E. Cavazzuti, Soebur Razzaque, David H. Green, Diego F. Torres, S. Kensei, W. B. Focke, Gloria Spandre, D. Costantin, F. Loparco, Matteo Negro, A. Morselli, Anna Franckowiak, E. Orlando, Massimo Persic, S. Rainò, Tsunefumi Mizuno, P. Spinelli, Francesco Giordano, M. Di Mauro, Gudlaugur Johannesson, J. Bregeon, E. Moretti, Dario Gasparrini, K. S. Wood, M. E. Monzani, Manuel Meyer, Guido Barbiellini, R. A. Cameron, Yasushi Fukazawa, Nicola Omodei, Melissa Pesce-Rollins, M. Orienti, P. Bruel, Miguel A. Sánchez-Conde, S. Maldera, F. Piron, Hiroyasu Tajima, Jan Conrad, G. Chiaro, C. A. Johnson, W. B. Atwood, Nicola Giglietto, M. N. Lovellette, P. A. Caraveo, E. J. Siskind, Markus Ackermann, F. Gargano, Giacomo Principe, A. Reimer, G. Tosti, B. Berenji, Giacomo Vianello, Seth Digel, Ronaldo Bellazzini, D. Malyshev, Matthew Wood, J. Ballet, Elisabetta Bissaldi, Denis Bastieri, Eugenio Bottacini, Alberto Manfreda, L. Guillemot, 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 Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Laboratoire Univers et Particules de Montpellier ( LUPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), 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 ), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-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 d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), ITA, Ackermann, M., Atwood, W. B., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Berenji, B., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caraveo, P. A., Cavazzuti, E., Charles, E., Chekhtman, A., Cheung, C. C., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Conrad, J., Costantin, D., D'Ammando, F., Palma, F. De, Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Favuzzi, C., Fegan, S. J., Focke, W. B., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Horan, D., Jóhannesson, G., Johnson, C., Kensei, S., Kocevski, D., Kuss, M., Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Mcenery, J. E., Meyer, M., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ojha, R., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Palatiello, M., Paliya, V. S., Paneque, D., Persic, M., Pesce-Rollins, M., Piron, F., Principe, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Ritz, S., Sánchez-Conde, M., Sgrò, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Thayer, J. G., Thayer, J. B., Torres, D. F., Tosti, G., Troja, E., Valverde, J., Vianello, G., Wood, K., Wood, M., and Zaharijas, G.
Subjects: [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], black hole physics, Primordial black hole, Astrophysics, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, evaporation, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010303 astronomy & astrophysics, Stellar evolution, media_common, Physics, lifetime, Gamma ray, astroparticle physic, observatory, gamma ray: emission, astroparticle physics, Astrophysics - High Energy Astrophysical Phenomena, black hole: primordial, burst, methods: data analysis, Astronomy and Astrophysics, Space and Planetary Science, Proper motion, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, primordial [black hole], GLAST, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], emission [gamma ray], 0103 physical sciences, Astroparticle physics, 010308 nuclear & particles physics, temperature, Astronomy and Astrophysic, black hole physic, Galaxy, Universe, confidence limit, 13. Climate action, [SDU]Sciences of the Universe [physics], data analysi [methods], ddc:520, galaxy, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope
Abstract: Black holes with masses below approximately $10^{15}$ g are expected to emit gamma rays with energies above a few tens of MeV, which can be detected by the Fermi Large Area Telescope (LAT). Although black holes with these masses cannot be formed as a result of stellar evolution, they may have formed in the early Universe and are therefore called Primordial Black Holes (PBHs). Previous searches for PBHs have focused on either short timescale bursts or the contribution of PBHs to the isotropic gamma-ray emission. We show that, in case of individual PBHs, the Fermi LAT is most sensitive to PBHs with temperatures above approximately 16 GeV and masses $6\times 10^{11}$ g, which it can detect out to a distance of about 0.03 pc. These PBHs have a remaining lifetime of months to years at the start of the Fermi mission. They would appear as potentially moving point sources with gamma-ray emission that becomes spectrally harder and brighter with time until the PBH completely evaporates. In this paper, we develop a new algorithm to detect the proper motion of a gamma-ray point sources, and apply it to 318 unassociated point sources at high galactic latitude in the third Fermi-LAT source catalog (3FGL). None of unassociated point sources with spectra consistent with PBH evaporation show significant proper motion. Using the non-detection of PBH candidates, we derive a 99\% confidence limit on PBH evaporation rate in the vicinity of the Earth $\dot{\rho}_{\rm PBH} < 7.2 \times 10^3\: {\rm {pc}^{-3} {yr}^{-1}}$. This limit is similar to the limits obtained with ground-based gamma-ray observatories., Comment: Accepted by ApJ. Corresponding authors: Christian Johnson, Dmitry Malyshev, Steve Ritz, Stefan Funk
Published: 2018
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9. Fermi-LAT Observations of LIGO/Virgo Event GW170817

Author: G. Chiaro, Marco Ajello, Diego F. Torres, Stefano Ciprini, J. B. Thayer, G. Jóhannesson, E. Moretti, Eleonora Troja, Nicola Omodei, Ronaldo Bellazzini, R. Buehler, E. J. Siskind, J. F. Ormes, Chong Yang, L. Guillemot, E. Orlando, T. J. Brandt, Stefan Funk, J. Li, Peter F. Michelson, Magnus Axelsson, L. R. Cominsky, Igor V. Moskalenko, Elliott D. Bloom, S. Cutini, A. A. Moiseev, Marcello Giroletti, Olaf Reimer, D. Horan, F. Loparco, Carmelo Sgrò, Riccardo Rando, A. Chekhtman, Johan Bregeon, P. Lubrano, Francesco Longo, I. A. Grenier, E. Cavazzuti, David H. Green, R. A. Cameron, J. L. Racusin, A. Reimer, Nicola Giglietto, E. Nuss, David Paneque, C. Favuzzi, Gloria Spandre, M. Kuss, Vahé Petrosian, Giacomo Principe, James Chiang, F. de Palma, F. Gargano, Johann Cohen-Tanugi, P. Fusco, L. Di Venere, Roger Blandford, Hiroyasu Tajima, Roopesh Ojha, Gabrijela Zaharijas, Denis Bastieri, Luca Latronico, K. S. Wood, J. G. Thayer, M. Di Mauro, Gino Tosti, D. Dumora, Elizabeth C. Ferrara, B. Berenji, Giacomo Vianello, M. N. Lovellette, P. A. Caraveo, J. M. Casandjian, R. Bonino, J. Granot, Steven Ritz, D. J. Suson, T. H. Burnett, C. C. Cheung, F. Piron, J. Valverde, Alice K. Harding, Melissa Pesce-Rollins, Tonia M. Venters, G. La Mura, Regina Caputo, N. Di Lalla, Luca Baldini, M. Takahashi, M. Palatiello, M. E. Monzani, M. N. Mazziotta, D. Tak, Sylvain Guiriec, R. Gill, Anna Franckowiak, D. Costantin, S. Rainò, Tsunefumi Mizuno, Vaidehi S. Paliya, Yasushi Fukazawa, P. M. Saz Parkinson, J. D. Magill, Soebur Razzaque, Alice Allafort, Elisabetta Bissaldi, P. Bruel, Matthew G. Baring, Sara Buson, T. A. Porter, Daniel Kocevski, Fumiya Imazato, T. Glanzman, R. Dubois, E. Hays, P. Spinelli, Francesco Giordano, F. Spada, Eugenio Bottacini, Alberto Manfreda, Dario Gasparrini, Stefan Larsson, M. Razzano, Filippo D'Ammando, Alessandro Cuoco, M.-H. Grondin, S. Maldera, T. Kamae, Eleonora Torresi, Massimo Persic, Felix Ryde, Guido Barbiellini, L. S. Rochester, S. Kensei, Matteo Negro, A. Morselli, ITA, Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), 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), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Ajello, M., Allafort, A., Axelsson, M., Baldini, L., Barbiellini, G., Baring, M. G., Bastieri, D., Bellazzini, R., Berenji, B., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Burnett, T. H., Buson, S., Cameron, R. A., Caputo, R., Caraveo, P. A., Casandjian, J. M., Cavazzuti, E., Chekhtman, A., Cheung, C. C., Chiang, J., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Cominsky, L. R., Costantin, D., Cuoco, A., Cutini, S., D'Ammando, F., Palma, F. De, Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Dubois, R., Dumora, D., Favuzzi, C., Ferrara, E. C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Gill, R., Giordano, F., Giroletti, M., Glanzman, T., Granot, J., Green, D., Grenier, I. A., Grondin, M. -H., Guillemot, L., Guiriec, S., Harding, A. K., Hays, E., Horan, D., Imazato, F., Jóhannesson, G., Kamae, T., Kensei, S., Kocevski, D., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mazziotta, M. N., Michelson, P. F., Mizuno, T., Moiseev, A. A., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ojha, R., Omodei, N., Orlando, E., Ormes, J. F., Palatiello, M., Paliya, V. S., Paneque, D., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Racusin, J. L., Raino, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Ritz, S., Rochester, L. S., Ryde, F., Parkinson, P. M. Saz, Sgro, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Takahashi, M., Tak, D., Thayer, J. G., Thayer, J. B., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Valverde, J., Venters, T. M., Vianello, G., Wood, K., Yang, C., Zaharijas, G., Raunvísindastofnun (HÍ), Science Institute (UI), Verkfræði- og náttúruvísindasvið (HÍ), School of Engineering and Natural Sciences (UI), Háskóli Íslands, University of Iceland, PSL Research University (PSL)-PSL Research University (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 PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES)
Subjects: neutron star: binary, Gammageislar, gamma-ray burst: general, Astrophysics, general [gamma-ray burst], 01 natural sciences, Gamma-ray, Luminosity, gamma rays: general, gravitational waves, gamma ray: flux, LIGO, gravitational wave, 010303 astronomy & astrophysics, Physics, energy: high, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Gamma-ray burst: general, Astrophysics::High Energy Astrophysical Phenomena, Context (language use), Astrophysics::Cosmology and Extragalactic Astrophysics, gamma ray: burst, gravitational radiation: direct detection, GLAST, Gravitational waves, binary: coalescence, 0103 physical sciences, ddc:530, 010306 general physics, Gamma-ray burst, Astrophysics::Galaxy Astrophysics, Gravitational wave, Astronomy and Astrophysics, trigger, Astronomy and Astrophysic, Stjarneðlisfræði, redshift, Redshift, gravitational radiation detector, Neutron star, electromagnetic, VIRGO, [SDU]Sciences of the Universe [physics], Space and Planetary Science, gravitational radiation: emission, ddc:520, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: Publisher's version (útgefin grein), We present the Fermi Large Area Telescope (LAT) observations of the binary neutron star merger event GW170817 and the associated short gamma-ray burst (SGRB) GRB 170817A detected by the Fermi Gamma-ray Burst Monitor. The LAT was entering the South Atlantic Anomaly at the time of the LIGO/Virgo trigger (t GW) and therefore cannot place constraints on the existence of high-energy (E > 100 MeV) emission associated with the moment of binary coalescence. We focus instead on constraining high-energy emission on longer timescales. No candidate electromagnetic counterpart was detected by the LAT on timescales of minutes, hours, or days after the LIGO/Virgo detection. The resulting flux upper bound (at 95% C.L.) from the LAT is 4.5 × 10−10 erg cm−2 s−1 in the 0.1–1 GeV range covering a period from t GW + 1153 s to t GW + 2027 s. At the distance of GRB 170817A, this flux upper bound corresponds to a luminosity upper bound of 9.7 × 1043 erg s−1, which is five orders of magnitude less luminous than the only other LAT SGRB with known redshift, GRB 090510. We also discuss the prospects for LAT detection of electromagnetic counterparts to future gravitational-wave events from Advanced LIGO/Virgo in the context of GW170817/GRB 170817A., This work performed in part under DOE Contract DE-AC02-76SF00515.
Published: 2018
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10. A new survey technique at hard X-rays

Author: Marco Ajello and Eugenio Bottacini
Subjects: Nuclear and High Energy Physics, Active galactic nucleus, Swift Gamma-Ray Burst Mission, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Field of view, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Surveys, Hard x-rays, law.invention, Telescope, law, Atomic and Molecular Physics, Active galactic nuclei, Coded-mask, Combining observations, Cosmology, Atomic and Molecular Physics, and Optics, Astrophysics::Galaxy Astrophysics, media_common, Physics, Galactic Center, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Galaxy, Black hole, Sky, and Optics
Abstract: In the view of the so-called Active Galactic Nuclei (AGN) unified model, the nuclear activity is powered by a super-massive black hole (SMBH) at the center of a galaxy. An optically thick gas-dust structure surrounding the SMBH absorbs efficiently the nuclear radiation. Current surveys of the INTEGRAL Soft-Gamma Ray Imager (IBIS/ISGRI) and of the Burst Alert Telescope (BAT) on board the Swift satellite have proven to be a powerful technique in detecting AGNs at soft gamma-ray energies. BAT and IBIS/ISGRI are coded-mask detectors having two major advantages: 1) they have a huge field of view, hence allowing to detect an large number of AGNs; 2) they operate at soft gamma-rays, hence collecting photons that are energetic enough to pierce efficiently through the gas-dust structure surrounding the SMBH. However, the sensitivity of coded-mask detectors is limited by heavy systematic uncertainties. Furthermore by design they block ∼50% of the incident photons causing an increase of statistical noise. This prevents the detection of the most absorbed AGNs. In this paper we will show that the BAT and the IBIS/ISGRI observations can be merged in order to produce a deep sky survey less susceptible to systematic and statistical noise. The survey of this virtual new mission extends over a wide sky area of 6200 deg2 sampling 113 sources. The scientific outcome from the study of the sample has been properly addressed to study the evolution of AGNs in the local Universe. Our results are compared to other missions and predictions on the results of the recently launched NuSTAR mission are made. We discuss the expected results when applying this survey to the entire extragalactic sky and first results of this survey on the Galactic center are shown.
Published: 2013
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11. Observations of M31 and M33 with the Fermi Large Area Telescope: A Galactic Center Excess in Andromeda?

Author: Jiancheng Wang, Diego F. Torres, Marco Ajello, S. Cutini, Jürgen Knödlseder, L. Latronico, F. Loparco, Ronaldo Bellazzini, R. A. Cameron, S. Rainò, J. F. Ormes, I. A. Grenier, E. Cavazzuti, David H. Green, Gloria Spandre, Jingcheng Li, G. Barbiellini, Andrea Albert, P. Spinelli, R. Buehler, P. Bruel, G. La Mura, Eric Charles, Xian Hou, Nicola Omodei, Kazuhiko Hayashi, Peter F. Michelson, Marcello Giroletti, M. N. Mazziotta, N. Di Lalla, Luca Baldini, Francesco Longo, Jean Ballet, M. Caragiulo, F. Gargano, Giacomo Principe, Claudia Cecchi, D. Malyshev, Sylvain Guiriec, Carmelo Sgrò, Riccardo Rando, Frederic Piron, E. J. Siskind, D. Simone, David Paneque, P. Martin, E. Orlando, M. Razzano, R. Bonino, Filippo D'Ammando, Johan Bregeon, K. Tanaka, A. Chekhtman, C. Favuzzi, Yasunobu Uchiyama, Nestor Mirabal, Elliott D. Bloom, P. Fusco, Matthew Wood, Warit Mitthumsiri, M. Kuss, M. Di Mauro, Matteo Negro, A. Morselli, Francesco Giordano, Stefan Funk, P. Lubrano, F. Spada, R. Caputo, Igor V. Moskalenko, Stefan Larsson, Gabrijela Zaharijas, Olaf Reimer, Melissa Pesce-Rollins, Tsunefumi Mizuno, S. W. Digel, G. Chiaro, R. Desiante, Ming Zhou, Miguel A. Sánchez-Conde, K. S. Wood, T. Ohsugi, Eleonora Troja, T. J. Brandt, L. Di Venere, E. Nuss, Gudlaugur Johannesson, M. E. Monzani, Lucas Guillemot, M. Ackermann, S. Maldera, F. Costanza, T. Kamae, L. Tibaldo, Nicola Giglietto, Elisabetta Bissaldi, Massimo Persic, P. A. Caraveo, T. Glanzman, Denis Bastieri, S. Ciprini, F. de Palma, Eugenio Bottacini, Alberto Manfreda, Albert K. H. Kong, T. A. Porter, Ackermann, M., Ajello, M., Albert, A., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Chiaro, G., Ciprini, S., Costanza, F., Cutini, S., D'Ammando, F., De Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Favuzzi, C., Funk, S., Fusco, P., Gargano, F., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Hayashi, K., Hou, X., Jóhannesson, G., Kamae, T., Knödlseder, J., Kong, A. K. H., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, Francesco, Loparco, F., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Martin, P., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Orlando, E., Ormes, J. F., Paneque, D., Persic, M., Pesce Rollins, M., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, O., Sánchez Conde, M., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Tanaka, K., Tibaldo, L., Torres, D. F., Troja, E., Uchiyama, Y., Wang, J. C., Wood, K. S., Wood, M., Zaharijas, G., Zhou, M., Deutsches Elektronen-Synchrotron [Hamburg] (DESY), Department of Physics and Astronomy [Clemson], Clemson University, Los Alamos National Laboratory (LANL), Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (INFN, Sezione di Trieste), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (INFN, Sezione di Padova), Istituto Nazionale di Fisica Nucleare, sezione di Bari (INFN, sezione di Bari), Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Stanford University, Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Istituto Nazionale di Fisica Nucleare, Sezione di Torino (INFN, Sezione di Torino), NASA Goddard Space Flight Center (GSFC), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Deutsches Elektronen-Synchrotron [Zeuthen] (DESY), Helmholtz-Gemeinschaft = Helmholtz Association, Santa Cruz Institute for Particle Physics (SCIPP), University of California [Santa Cruz] (UCSC), University of California-University of California, Istituto di Astrofisica Spaziale e Fisica Cosmica - Milano (IASF-MI), Istituto Nazionale di Astrofisica (INAF), Agenzia Spaziale Italiana (ASI) Science Data Center, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (INFN, Sezione di Perugia), George Mason University [Fairfax], Universita degli Studi di Padova, Istituto di Radioastronomia [Bologna] (IRA), Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), 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), Department of Astrophysics [Nagoya], Nagoya University, Yunnan Observatories, Chinese Academy of Sciences, Science Institute, University of Iceland, University of Iceland [Reykjavik], Tokyo University of Science [Tokyo], Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), National Tsing Hua University [Hsinchu] (NTHU), DIEE, University of Cagliari, Royal Institute of Technology [Stockholm] (KTH ), Institut d'Estudis Espacials de Catalunya (IEEC-CSIC), Mahidol University [Bangkok], Hiroshima University, Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tor Vergata (INFN, Sezione di Roma Tor Vergata), Department of Physics and Astronomy [Denver], University of Denver, Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) (MPI-P), INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Leopold-Franzens Universitat Innsbruck, Stockholm University, NYCB Real-Time Computing Inc., Lattingtown, NYCB Real-Time Computing Inc. [Lattingtown], Max-Planck-Institut für Kernphysik (MPIK), Max-Planck-Gesellschaft, Institut de Ciencies de l'Espai [Barcelona] (ICE-CSIC), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Rikkyo University [Tokyo], Università degli Studi di Udine - University of Udine [Italie], ITA, 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), University of California [Santa Cruz] (UC Santa Cruz), University of California (UC)-University of California (UC), Università degli Studi di Padova = University of Padua (Unipd), 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, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), 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), Universität Innsbruck [Innsbruck], Ackermann M, Ajello M, Albert A, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, Bloom E D, Bonino R, Bottacini E, Brandt T J, Bregeon J, Bruel P, Buehler R, Cameron R A, Caputo R, Caragiulo M, Caraveo P A, Cavazzuti E, Cecchi C, Charles E, Chekhtman A, Chiaro G, Ciprini S, Costanza F, Cutini S, DAmmando F, de Palma F, Desiante R, Digel S W, Di Lalla N, Di Mauro M, Di Venere L, Favuzzi C, Funk S, Fusco P, Gargano F, Giglietto N, Giordano F, Giroletti M, Glanzman T, Green D, Grenier I A, Guillemot L, Guiriec S, Hayashi K, Hou X, Jóhannesson G, Kamae T, Knödlseder J, Kong A K H, Kuss M, La Mura G, Larsson S, Latronico L, Li J, Longo F, Loparco F, Lubrano P, Maldera S, Malyshev D, Manfreda A, Martin P, Mazziotta M N, Michelson P F, Mirabal N, Mitthumsiri W, Mizuno T, Monzani M E, Morselli A, Moskalenko I V, Negro M, Nuss E, Ohsugi T, Omodei N, Orlando E, Ormes J F, Paneque D, Persic M, Pesce-Rollins M, Piron F, Porter T A, Principe G, Rainò S, Rando R, Razzano M, Reimer O, Sánchez-Conde M, Sgrò C, Simone D, Siskind E J, Spada F, Spandre G, Spinelli P, Tanaka K, Tibaldo L, Torres D F, Troja E, Uchiyama Y, Wang J C, Wood K S, Wood M, Zaharijas G, Zhou M, National Institute for Nuclear Physics (INFN), Stanford University [Stanford], Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Helmholtz-Gemeinschaft, Istituto di Radioastronomia INAF, Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Department of Astrophysics, Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), and Consejo Superior de Investigaciones Científicas [Spain] (CSIC)
Subjects: Andromeda Galaxy, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], cosmic rays, gamma rays: galaxies, Local Group, Astronomy and Astrophysics, Space and Planetary Science, Milky Way, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 0103 physical sciences, Galaxy formation and evolution, galaxie [gamma rays], Interacting galaxy, 10. No inequality, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, cosmic ray, Physics, 010308 nuclear & particles physics, Astronomy, Astronomy and Astrophysic, Galaxy, Dwarf spheroidal galaxy, cosmic rays – gamma rays: galaxies – Local Group, Globular cluster, Elliptical galaxy, ddc:520, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Fermi LAT has opened the way for comparative studies of cosmic rays (CRs) and high-energy objects in the Milky Way (MW) and in other, external, star-forming galaxies. Using 2 yr of observations with the Fermi LAT, local Group galaxy M31 was detected as a marginally extended gamma-ray source, while only an upper limit (UL) has been derived for the other nearby galaxy M33. We revisited the gamma-ray emission in the direction of M31 and M33 using more than 7 yr of LAT Pass 8 data in the energy range 0.1-100 GeV, presenting detailed morphological and spectral analyses. M33 remains undetected and we computed an UL for it. This revised UL remains consistent with the observed correlation between gamma-ray luminosity and star-formation rate tracers and implies an average CR density in M33 that is at most half of that of the MW. M31 is detected with a significance of nearly 10 sigma and to be extended with 4 sigma. Its spectrum is consistent with a power law. The spatial distribution of the emission is consistent with a uniform disk with a radius of 0.4 deg and no offset from the center of M31, but nonuniform intensity distributions cannot be excluded. The flux from M31 appears confined to the inner regions of the galaxy and does not fill the disk or extend far from it. The gamma-ray signal is not correlated with regions rich in gas or star-formation activity suggesting that the emission is not interstellar in origin, unless the energetic particles radiating in gamma rays do not originate in recent star formation. Alternative and nonexclusive interpretations are that the emission results from a population of millisecond pulsars dispersed in the bulge and disk of M31 by disrupted globular clusters or from the decay or annihilation of dark matter particles, similar to what has been proposed to account for the so-called Galactic Center excess found in Fermi-LAT observations of the MW., Comment: 14 pages, 7 figures, 4 tables
Published: 2017
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12. The Fermi Galactic Center GeV Excess and Implications for Dark Matter

Author: Dario Gasparrini, J. Ballet, Francesco Longo, Elisabetta Bissaldi, L. Latronico, Miguel A. Sánchez-Conde, K. Tanaka, P. Bruel, A. S. Johnson, S. W. Digel, T. Ohsugi, M. Orienti, M. Ackermann, Eric Charles, Eleonora Troja, D. Malyshev, Yasunobu Uchiyama, T. H. Burnett, Soebur Razzaque, S. Maldera, F. Costanza, T. Kamae, Warit Mitthumsiri, M. Razzano, Filippo D'Ammando, John W. Hewitt, T. Jogler, G. Barbiellini, M. Kuss, M. Di Mauro, F. de Palma, D. J. Suson, W. B. Focke, T. J. Brandt, Gabrijela Zaharijas, Frederic Piron, Alice K. Harding, Diego F. Torres, Giacomo Principe, Alessandro Cuoco, W. B. Atwood, J. S. Perkins, Matthew Wood, E. Orlando, L. Tibaldo, Jingcheng Li, James Chiang, Andrea Chiappo, Francesco Giordano, Nicola Giglietto, R. Desiante, Roger Blandford, M. Caragiulo, R. A. Cameron, P. Spinelli, R. Buehler, Elizabeth C. Ferrara, Giacomo Vianello, Matteo Negro, A. Morselli, M. N. Lovellette, J. Bregeon, P. A. Caraveo, R. Bonino, Nestor Mirabal, Massimo Persic, Persis S. Drell, Ronaldo Bellazzini, Peter F. Michelson, Marcello Giroletti, K. S. Wood, Olaf Reimer, D. Horan, A. Chekhtman, P. Lubrano, S. Rainò, N. Di Lalla, Luca Baldini, Elliott D. Bloom, Claudia Cecchi, Sylvain Guiriec, Andrea Albert, F. Spada, R. Caputo, F. Gargano, Hiroyasu Tajima, S. J. Fegan, Jan Conrad, Stefan Larsson, C. Favuzzi, G. La Mura, E. J. Siskind, M. N. Mazziotta, M. Gustafsson, Melissa Pesce-Rollins, Pierrick Martin, J. D. Magill, G. A. Gomez-Vargas, Anna Franckowiak, Tsunefumi Mizuno, A. Reimer, E. Hays, Stephan Zimmer, G. Chiaro, J. E. Grove, Yasushi Fukazawa, S. Cutini, A. A. Moiseev, D. Kocevski, T. Glanzman, F. Loparco, M. E. Monzani, Eugenio Bottacini, Alberto Manfreda, Denis Bastieri, S. Ciprini, Marco Ajello, J. B. Thayer, J. F. Ormes, P. Fusco, Stefan Funk, Carmelo Sgrò, Riccardo Rando, D. Simone, David Paneque, I. A. Grenier, E. Cavazzuti, David H. Green, Gloria Spandre, L. Guillemot, E. Nuss, L. Di Venere, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / 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 Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), 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, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Burnett, T. H., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Chiang, J., Chiappo, A., Chiaro, G., Ciprini, S., Conrad, J., Costanza, F., Cuoco, A., Cutini, S., D'Ammando, F., De Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Drell, P. S., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Gomez-Vargas, G. A., Green, D., Grenier, I. A., Grove, J. E., Guillemot, L., Guiriec, S., Gustafsson, M., Harding, A. K., Hays, E., Hewitt, J. W., Horan, D., Jogler, T., Johnson, A. S., Kamae, T., Kocevski, D., Kuss, M., La Mura, G., Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Malyshev, D., Manfreda, A., Martin, P., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Negro, M., Nuss, E., Ohsugi, T., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Perkins, J. S., Persic, M., Pesce-Rollins, M., Piron, F., Principe, G., Raino, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Sanchez-Conde, M., Sgro, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Tanaka, K., Thayer, J. B., Tibaldo, L., Torres, D. F., Troja, E., Uchiyama, Y., Vianello, G., Wood, K. S., Wood, M., Zaharijas, G., Zimmer, S., Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Laboratoire Univers et Particules de Montpellier ( LUPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), 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 ), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Centre National de la Recherche Scientifique ( CNRS ) -Université d'Orléans ( UO ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Institut de recherche en astrophysique et planétologie ( IRAP ), Université Paul Sabatier - Toulouse 3 ( UPS ) -Observatoire Midi-Pyrénées ( OMP ) -Centre National de la Recherche Scientifique ( CNRS ), D’Ammando, F., Palma, F. de, Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Gomez Vargas, G. A., Mura, G. La, Longo, Francesco, Pesce Rollins, M., Rainò, S., Sánchez Conde, M., Sgrò, C., Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), 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), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and ITA
Subjects: [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics, 01 natural sciences, Galaxy: bulge, propagation, gamma ray: flux, 010303 astronomy & astrophysics, cosmic ray, Physics, general [ISM], Galaxy: center, Galactic Center, center [Galaxy], gamma ray: emission, cosmic radiation, Astrophysics - High Energy Astrophysical Phenomena, Milky Way, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, bulge [Galaxy], Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, cosmic rays, Galaxy: halo, gamma rays: general, ISM: general, Astronomy and Astrophysics, Space and Planetary Science, cross section: annihilation, Galactic halo, gas, 0103 physical sciences, conservation law, halo [Galaxy], Astrophysics::Galaxy Astrophysics, 010308 nuclear & particles physics, background, bubble, Astronomy, dark matter: annihilation, Galactic plane, Galaxy, [SDU]Sciences of the Universe [physics], ddc:520, galaxy, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: The region around the Galactic center (GC) is now well established to be brighter at energies of a few GeV than expected from conventional models of diffuse gamma-ray emission and catalogs of known gamma-ray sources. We study the GeV excess using 6.5 years of data from the Fermi Large Area Telescope. We characterize the uncertainty of the GC excess spectrum and morphology due to uncertainties in cosmic-ray source distributions and propagation, uncertainties in the distribution of interstellar gas in the Milky Way, and uncertainties due to a potential contribution from the Fermi bubbles. We also evaluate uncertainties in the excess properties due to resolved point sources of gamma rays. The Galactic center is of particular interest as it would be expected to have the brightest signal from annihilation of weakly interacting massive dark matter particles. However, control regions along the Galactic plane, where a dark-matter signal is not expected, show excesses of similar amplitude relative to the local background. Based on the magnitude of the systematic uncertainties, we conservatively report upper limits for the annihilation cross section as function of particle mass and annihilation channel., Comment: Contact authors: A. Albert, E. Charles, A. Franckowiak, D. Malyshev, L. Tibaldo. 63 pages, 34 figures. Published in ApJ
Published: 2017
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13. Fermi-LAT Observations of High-energy Behind-the-limb Solar Flares

Author: Gudlaugur Johannesson, Lucas Guillemot, Giacomo Principe, T. Ohsugi, I. A. Grenier, L. K. Kashapova, M. E. Monzani, G. Barbiellini, M. Ackermann, C. Cecchi, Matteo Negro, A. Morselli, S. Maldera, Francesco Longo, R. Desiante, Diego F. Torres, Elena Orlando, L. Latronico, Denis Bastieri, F. Spada, Valentin Pal'shin, P. Spinelli, Nicola Omodei, T. Jogler, R. Buehler, Giacomo Vianello, Jingcheng Li, C. Favuzzi, Marcello Giroletti, M. Caragiulo, S. Cutini, N. Di Lalla, M. Razzano, Filippo D'Ammando, Igor V. Moskalenko, Frederic Piron, Olaf Reimer, Alice Allafort, R. A. Cameron, Eric Charles, F. Loparco, S. Ciprini, Vahé Petrosian, P. Lubrano, Nicola Giglietto, S. Rainò, S. W. Digel, Warit Mitthumsiri, M. Kuss, M. Di Mauro, Wei Liu, Hiroyasu Tajima, E. J. Siskind, P. A. Caraveo, Persis S. Drell, Francesco Giordano, Ronaldo Bellazzini, M. N. Mazziotta, F. Rubio da Costa, J. S. Perkins, Melissa Pesce-Rollins, G. La Mura, F. Costanza, Johan Bregeon, Tsunefumi Mizuno, F. Gargano, Luca Baldini, F. de Palma, Eugenio Bottacini, Alberto Manfreda, Yasushi Fukazawa, Stefan Larsson, Sylvain Guiriec, Eleonora Troja, Säm Krucker, R. Bonino, Elisabetta Bissaldi, P. Fusco, Carmelo Sgrò, Riccardo Rando, D. Simone, David Paneque, J. B. Thayer, J. D. Magill, E. Nuss, L. Di Venere, E. Cavazzuti, Gloria Spandre, P. Bruel, Ackermann, M., Allafort, A., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Charles, E., Ciprini, S., Costanza, F., Cutini, S., D'Ammando, F., Palma, F. De, Desiante, R., Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Drell, P. S., Favuzzi, C., Fukazawa, Y., Fusco, P., Gargano, F., Giglietto, N., Giordano, F., Giroletti, M., Grenier, I. A., Guillemot, L., Guiriec, S., Jogler, T., Jóhannesson, G., Kashapova, L., Krucker, S., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Liu, W., Longo, Francesco, Loparco, F., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mazziotta, M. N., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Orlando, E., Pal'Shin, V., Paneque, D., Perkins, J. S., Pesce Rollins, M., Petrosian, V., Piron, F., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, O., Costa, F. Rubio Da, Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Tajima, H., Thayer, J. B., Torres, D. F., Troja, E., Vianello, G., Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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 (UMR_7158 / 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 de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), 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, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Laboratoire Univers et Particules de Montpellier ( LUPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), 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 ), Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Centre National de la Recherche Scientifique ( CNRS ) -Université d'Orléans ( UO ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Ackermann M, Allafort A, Baldini L, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, Bonino R, Bottacini E, Bregeon J, Bruel P, Buehler R, Cameron R A, Caragiulo M, Caraveo P A, Cavazzuti E, Cecchi C, Charles E, Ciprini S, Costanza F, Cutini S, DAmmando F, de Palma F, Desiante R, Digel S W, Di Lalla N, Di Mauro M, Di Venere L, Drell P S, Favuzzi C, Fukazawa Y, Fusco P, Gargano F, Giglietto N, Giordano F, Giroletti M, Grenier I A, Guillemot L, Guiriec S, Jogler T, Jóhannesson G, Kashapova L, Krucker S, Kuss M, La Mura G, Larsson S, Latronico L, Li J, Liu W, Longo F, Loparco F, Lubrano P, Magill J D, Maldera S, Manfreda A, Mazziotta M N, Mitthumsiri W, Mizuno T, Monzani M E, Morselli A, Moskalenko I V, Negro M, Nuss E, Ohsugi T, Omodei N, Orlando E, Pal’shin V, Paneque D, Perkins J S, Pesce-Rollins M, Petrosian V, Piron F, Principe G, Rainò S, Rando R, Razzano M, Reimer O, Rubio da Costa F, Sgrò C, Simone D, Siskind E J, Spada F, Spandre G, Spinelli P, Tajima H, Thayer J B, Torres D F, Troja E, Vianello G, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), ITA, and Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Sun: flares, 010504 meteorology & atmospheric sciences, Sun: flares – Sun: X-rays, gamma rays, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Electron, Astrophysics, 7. Clean energy, 01 natural sciences, Spectral line, flare [Sun], law.invention, law, 0103 physical sciences, Coronal mass ejection, Astrophysics::Solar and Stellar Astrophysics, 010303 astronomy & astrophysics, Solar and Stellar Astrophysics (astro-ph.SR), 0105 earth and related environmental sciences, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Photosphere, Solar flare, Bremsstrahlung, Astronomy and Astrophysics, Astronomy and Astrophysic, gamma rays, Sun: X-rays, gamma rays, Space and Planetary Science, Astrophysics - Solar and Stellar Astrophysics, 13. Climate action, [SDU]Sciences of the Universe [physics], Physics::Space Physics, ddc:520, X-rays, gamma ray [Sun], Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Sun: X-rays, Fermi Gamma-ray Space Telescope, Flare
Abstract: We report on the Fermi-LAT detection of high-energy emission from the behind-the-limb (BTL) solar flares that occurred on 2013 October 11, and 2014 January 6 and September 1. The Fermi-LAT observations are associated with flares from active regions originating behind both the eastern and western limbs, as determined by STEREO. All three flares are associated with very fast coronal mass ejections (CMEs) and strong solar energetic particle events. We present updated localizations of the >100 MeV photon emission, hard X-ray (HXR)and EUV images, and broadband spectra from 10 keV to 10 GeV, as well as microwave spectra. We also provide a comparison of the BTL flares detected by Fermi-LAT with three on-disk flares and present a study of some of the significant quantities of these flares as an attempt to better understand the acceleration mechanisms at work during these occulted flares. We interpret the HXR emission to be due to electron bremsstrahlung from a coronal thin-target loop top with the accelerated electron spectra steepening at semirelativistic energies. The >100 MeV gamma-rays are best described by a pion-decay model resulting from the interaction of protons (and other ions) in a thick-target photospheric source. The protons are believed to have been accelerated (to energies >10 GeV) in the CME environment and precipitate down to the photosphere from the downstream side of the CME shock and landed on the front side of the Sun, away from the original flare site and the HXR emission., 13 pages, 14 figures published on ApJ
Published: 2017
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14. Search for Extended Sources in the Galactic Plane Using Six Years of Fermi-Large Area Telescope Pass 8 Data above 10 GeV

Author: Gudlaugur Johannesson, Guido Barbiellini, J. W. Hewitt, Daniel Castro, F. de Palma, Claudia Cecchi, Elizabeth C. Ferrara, J. Ballet, Xian Hou, Elisabetta Bissaldi, E. Orlando, F. Loparco, E. Hays, T. A. Porter, Matteo Negro, A. Morselli, Vahé Petrosian, Seth Digel, E. J. Siskind, J. Bregeon, Giacomo Principe, F. Piron, Marco Ajello, Francesco Longo, Nicola Omodei, M.-H. Grondin, Diego F. Torres, G. Tosti, Massimo Persic, J. B. Thayer, Soebur Razzaque, L. Di Venere, J. D. Magill, Giacomo Vianello, Alice K. Harding, Jingcheng Li, Igor V. Moskalenko, Olaf Reimer, D. Horan, Eugenio Bottacini, Alberto Manfreda, M. Lemoine-Goumard, M. Caragiulo, M. N. Mazziotta, S. Maldera, R. Desiante, F. Costanza, T. Kamae, R. Buehler, Denis Bastieri, J. F. Ormes, Ronaldo Bellazzini, Markus Ackermann, K. S. Wood, T. Ohsugi, Eleonora Troja, C. Favuzzi, Peter F. Michelson, Marcello Giroletti, Dario Gasparrini, Carmelo Sgrò, Riccardo Rando, L. Guillemot, M. Di Mauro, T. J. Brandt, F. Spada, Stefan Larsson, M. E. Monzani, C. C. Cheung, S. Cutini, R. Bonino, D. Simone, E. Nuss, T. Reposeur, David Paneque, D. J. Thompson, M. Razzano, Filippo D'Ammando, M. Kuss, I. A. Grenier, D. Malyshev, E. Cavazzuti, David H. Green, Stefano Ciprini, F. Gargano, Eric Charles, Gloria Spandre, J. S. Perkins, D. J. Suson, Elliott D. Bloom, Nicola Giglietto, Matthew Wood, A. Chekhtman, P. Lubrano, Stefan Funk, P. A. Caraveo, G. La Mura, N. Di Lalla, Luca Baldini, Monica Orienti, Sylvain Guiriec, Warit Mitthumsiri, D. Costantin, P. Spinelli, A. Reimer, Francesco Giordano, Melissa Pesce-Rollins, Vaidehi S. Paliya, J. M. Cohen, R. A. Cameron, P. Bruel, Anna Franckowiak, S. Rainò, Tsunefumi Mizuno, G. Chiaro, Yasushi Fukazawa, D. Tak, P. Fusco, S. J. Fegan, ITA, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), 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, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Ackermann, M., Ajello, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Castro, D., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Cheung, C. C., Chiaro, G., Ciprini, S., Cohen, J. M., Costantin, D., Costanza, F., Cutini, S., D'Ammando, F., De Palma, F., Desiante, R., Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Favuzzi, C., Fegan, S. J., Ferrara, E. C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Grondin, M. -H., Guillemot, L., Guiriec, S., Harding, A. K., Hays, E., Hewitt, J. W., Horan, D., Hou, X., Jóhannesson, G., Kamae, T., Kuss, M., La Mura, G., Larsson, S., Lemoine-Goumard, M., Li, J., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paliya, V. S., Paneque, D., Perkins, J. S., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Raino, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Reposeur, T., Sgro, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Tak, D., Thayer, J. B., Thompson, D. J., Torres, D. F., Tosti, G., Troja, E., Vianello, G., Wood, K. S., Wood, M., 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), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), 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), 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Laboratoire Univers et Particules de Montpellier ( LUPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), 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 ), Centre d'Etudes Nucléaires de Bordeaux Gradignan ( CENBG ), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Centre National de la Recherche Scientifique ( CNRS ) -Université d'Orléans ( UO ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Unité Scientifique de la Station de Nançay ( USN ), and Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: catalog, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics::High Energy Astrophysical Phenomena, catalogs, gamma rays: general, Astrophysics, 01 natural sciences, gamma ray: energy spectrum, GLAST, Astronomy and Astrophysics, Space and Planetary Science, law.invention, Telescope, law, 0103 physical sciences, 010303 astronomy & astrophysics, Physics, 010308 nuclear & particles physics, Spectral properties, Gamma ray, Function (mathematics), Galactic plane, Astronomy and Astrophysic, Galaxy, [SDU]Sciences of the Universe [physics], gamma ray, spectral, galaxy, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], general [gamma rays], Fermi Gamma-ray Space Telescope, acceptance
Abstract: International audience; The spatial extension of a γ-ray source is an essential ingredient to determine its spectral properties, as well as its potential multiwavelength counterpart. The capability to spatially resolve γ-ray sources is greatly improved by the newly delivered Fermi-Large Area Telescope (LAT) Pass 8 event-level analysis, which provides a greater acceptance and an improved point-spread function, two crucial factors for the detection of extended sources. Here, we present a complete search for extended sources located within 7° from the Galactic plane, using 6 yr of Fermi-LAT data above 10 GeV. We find 46 extended sources and provide their morphological and spectral characteristics. This constitutes the first catalog of hard Fermi-LAT extended sources, named the Fermi Galactic Extended Source Catalog, which allows a thorough study of the properties of the Galactic plane in the sub-TeV domain.
Published: 2017
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15. Gamma-Ray Blazars within the First 2 Billion Years

Author: E. Nuss, I. A. Grenier, E. Cavazzuti, David H. Green, Gloria Spandre, L. Di Venere, Roopesh Ojha, R. A. Cameron, P. Spinelli, Igor V. Moskalenko, Carmelo Sgrò, Riccardo Rando, R. Buehler, Olaf Reimer, D. Horan, D. Simone, David Paneque, Vaidehi S. Paliya, Peter F. Michelson, Marcello Giroletti, Elliott D. Bloom, K. Tanaka, L. Marcotulli, M. Caragiulo, T. Jogler, G. Barbiellini, Gudlaugur Johannesson, M. N. Mazziotta, W. B. Focke, Frederic Piron, M. Razzano, Roger W. Romani, Filippo D'Ammando, P. Bruel, E. Orlando, P. Fusco, G. La Mura, D. J. Thompson, Marco Ajello, J. B. Thayer, J. F. Ormes, Dario Gasparrini, S. Rainò, E. Hays, Francesco Giordano, W. Mitthumsiri, Jan Conrad, Lukasz Stawarz, Diego F. Torres, Giacomo Principe, G. Tosti, F. Spada, Giacomo Vianello, Stefan Larsson, C. C. Cheung, Monica Orienti, Stefan Funk, S. J. Fegan, C. S. Stalin, C. Favuzzi, K. S. Wood, Melissa Pesce-Rollins, Dieter H. Hartmann, Francesco Longo, Bindu Rani, R. Bonino, Nestor Mirabal, Ronaldo Bellazzini, Jingcheng Li, Massimo Persic, M. Ackermann, N. Di Lalla, Luca Baldini, A. Reimer, J. D. Magill, M. Kuss, M. Di Mauro, M. Takahashi, Sylvain Guiriec, M. E. Monzani, S. Maldera, D. Costantin, F. Costanza, T. Ohsugi, Eleonora Troja, Tsunefumi Mizuno, Denis Bastieri, Eleonora Torresi, G. Chiaro, F. de Palma, Yasushi Fukazawa, J. S. Perkins, Nicola Giglietto, M. N. Lovellette, P. A. Caraveo, Persis S. Drell, Aaron Dominguez, Soebur Razzaque, S. Ciprini, James Chiang, Justin D. Finke, L. Latronico, L. Guillemot, Eugenio Bottacini, Alberto Manfreda, Roger Blandford, J. Becerra González, J. Ballet, Elisabetta Bissaldi, A. S. Johnson, F. Gargano, Sara Buson, T. A. Porter, E. J. Siskind, S. Cutini, F. Loparco, Elizabeth C. Ferrara, Nicola Omodei, P. Lubrano, Matteo Negro, A. Morselli, J. Bregeon, D. J. Suson, S. W. Digel, R. Desiante, Claudia Cecchi, Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Laboratoire Univers et Particules de Montpellier ( LUPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), 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 ), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Centre National de la Recherche Scientifique ( CNRS ) -Université d'Orléans ( UO ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Fermi-LAT, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Ackermann, M., Ajello, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Gonzalez, J. Becerra, Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Cheung, C. C., Chiang, J., Chiaro, G., Ciprini, S., Conrad, J., Costantin, D., Costanza, F., Cutini, S., D'Ammando, F., Palma, F. De, Desiante, R., Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Domínguez, A., Drell, P. S., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Finke, J., Focke, W. B., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Hartmann, D. H., Hays, E., Horan, D., Jogler, T., Jóhannesson, G., Johnson, A. S., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Marcotulli, L., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Ojha, R., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paliya, V. S., Paneque, D., Perkins, J. S., Persic, M., Pesce Rollins, M., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Rani, B., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Romani, R. W., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Stalin, C. S., Stawarz, L., Suson, D. J., Takahashi, M., Tanaka, K., Thayer, J. B., Thompson, D. J., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Vianello, G., Wood, K. S., ITA, 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), and PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris
Subjects: Active galactic nucleus, 010504 meteorology & atmospheric sciences, Radio galaxy, galaxies: active, galaxies: high-redshift, galaxies: jets, gamma rays: galaxies, quasars: general, Astronomy and Astrophysics, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Population, jets [galaxies], Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Luminosity, Astrophysical jet, 0103 physical sciences, galaxie [gamma rays], Blazar, education, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Physics, education.field_of_study, general [quasars], Astronomy, Quasar, Astronomy and Astrophysic, Black hole, jet [galaxies], [SDU]Sciences of the Universe [physics], galaxies [gamma rays], active [galaxies], ddc:520, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], high-redshift [galaxies]
Abstract: The astrophysical journal 837(1), L5 (2017). doi:10.3847/2041-8213/aa5fff, The detection of high-redshift ($z\,\gt 3$) blazars enables the study of the evolution of the most luminous relativistic jets over cosmic time. More importantly, high-redshift blazars tend to host massive black holes and can be used to constrain the space density of heavy black holes in the early universe. Here, we report the first detection with the Fermi-Large Area Telescope of five γ-ray-emitting blazars beyond z = 3.1, more distant than any blazars previously detected in γ-rays. Among these five objects, NVSS J151002+570243 is now the most distant known γ-ray-emitting blazar at z = 4.31. These objects have steeply falling γ-ray spectral energy distributions (SEDs), and those that have been observed in X-rays have a very hard X-ray spectrum, both typical of powerful blazars. Their Compton dominance (ratio of the inverse Compton to synchrotron peak luminosities) is also very large ($\gt 20$). All of these properties place these objects among the most extreme members of the blazar population. Their optical spectra and the modeling of their optical-UV SEDs confirm that these objects harbor massive black holes (${M}_{\mathrm{BH}}\sim {10}^{8-10}\,{M}_{\odot }$). We find that, at $z\approx 4$, the space density of $\gt {10}^{9}\,{M}_{\odot }$ black holes hosted in radio-loud and radio-quiet active galactic nuclei are similar, implying that radio-loudness may play a key role in rapid black hole growth in the early universe., Published by Univ., Chicago, Ill. [u.a.]
Published: 2017
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16. The second catalog of flaring gamma-ray sources from the Fermi All-sky Variability Analysis

Author: L. Latronico, S. J. Fegan, M. Ackermann, Jean Ballet, C. Favuzzi, S. Maldera, F. Costanza, Roger Blandford, P. Bruel, M. E. Monzani, M. Razzano, Igor V. Moskalenko, Matteo Giomi, R. Bonino, Gino Tosti, Filippo D'Ammando, M. Di Mauro, Francesco Longo, Olaf Reimer, Dario Gasparrini, P. Fusco, Abhishek Desai, Nicola Omodei, K. Tanaka, J. B. Thayer, D. J. Thompson, Gudlaugur Johannesson, F. Spada, J. S. Perkins, Daniel Kocevski, Melissa Pesce-Rollins, C. C. Cheung, Vahé Petrosian, C. Cecchi, Giacomo Principe, D. Costantin, Janet Conrad, Lucas Guillemot, Luca Baldini, Johan Bregeon, W. B. Focke, F. Gargano, Frederic Piron, M. Takahashi, D. J. Suson, S. Abdollahi, T. A. Porter, R. A. Cameron, Marco Ajello, R. Buehler, A. Reimer, N. Di Lalla, I. A. Grenier, Sylvain Guiriec, Francesco Giordano, A. Franckowiak, M. Caragiulo, T. Ohsugi, Jingcheng Li, Monica Orienti, A. S. Johnson, A. Chekhtman, E. Cavazzuti, J. D. Magill, S. Buson, M. Kuss, Soebur Razzaque, Elizabeth Hays, Peter F. Michelson, Marcello Giroletti, David H. Green, G. Barbiellini, Matteo Negro, A. Morselli, Stefan Funk, Eleonora Troja, Giacomo Vianello, D. Horan, Andrea Albert, Elizabeth C. Ferrara, W. Mitthumsiri, M. N. Lovellette, G. La Mura, Nicola Giglietto, T. Glanzman, Gloria Spandre, Massimo Persic, P. Lubrano, Tsunefumi Mizuno, S. W. Digel, S. Cutini, G. Chiaro, M. N. Mazziotta, E. J. Siskind, Stefan Larsson, P. A. Caraveo, E. D. Bloom, J. E. Grove, Persis S. Drell, Yasushi Fukazawa, Ronaldo Bellazzini, P. Spinelli, Kent S. Wood, T. Jogler, F. de Palma, Eleonora Torresi, E. Nuss, L. Di Venere, Michael Mayer, Lukasz Stawarz, Carmelo Sgrò, Riccardo Rando, F. Loparco, D. Simone, David Paneque, Diego F. Torres, Elena Orlando, J. Becerra González, Elisabetta Bissaldi, Vaidehi S. Paliya, S. Rainò, Eugenio Bottacini, Alberto Manfreda, Denis Bastieri, B. Donaggio, S. Ciprini, R. Desiante, 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), Université Montpellier 2 - Sciences et Techniques (UM2), 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), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), ITA, Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Abdollahi, S., Ackermann, M., Ajello, M., Albert, A., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Becerra Gonzalez, J., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Chekhtman, A., Cheung, C. C., Chiaro, G., Ciprini, S., Conrad, J., Costantin, D., Costanza, F., Cutini, S., D'Ammando, F., Palma, F. De, Desai, A., Desiante, R., Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Donaggio, B., Drell, P. S., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giomi, M., Giordano, F., Giroletti, M., Glanzman, T., Green, D., Grenier, I. A., Grove, J. E., Guillemot, L., Guiriec, S., Hays, E., Horan, D., Jogler, T., Jóhannesson, G., Johnson, A. S., Kocevski, D., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Paliya, V. S., Paneque, D., Perkins, J. S., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Stawarz, L., Suson, D. J., Takahashi, M., Tanaka, K., Thayer, J. B., Thompson, D. J., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Vianello, G., Wood, K. S., Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Université Montpellier 2 - Sciences et Techniques ( UM2 ), 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 ), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Centre National de la Recherche Scientifique ( CNRS ) -Université d'Orléans ( UO ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Unité Scientifique de la Station de Nançay ( USN ), and Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: catalog, Active galactic nucleus, media_common.quotation_subject, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Spectral line, law.invention, Telescope, photometric [techniques], techniques: photometric, Spitzer Space Telescope, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Variability, Blazar, 010303 astronomy & astrophysics, media_common, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), astroparticle physics, catalogs, gamma rays: general, Astronomy and Astrophysics, Space and Planetary Science, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Gamma ray, astroparticle physic, Astronomy and Astrophysic, Sky, [SDU]Sciences of the Universe [physics], active [galaxies], ddc:520, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: We present the second catalog of flaring gamma-ray sources (2FAV) detected with the Fermi All-sky Variability Analysis (FAVA), a tool that blindly searches for transients over the entire sky observed by the Large Area Telescope (LAT) on board the \textit{Fermi} Gamma-ray Space Telescope. With respect to the first FAVA catalog, this catalog benefits from a larger data set, the latest LAT data release (Pass 8), as well as from an improved analysis that includes likelihood techniques for a more precise localization of the transients. Applying this analysis on the first 7.4 years of \textit{Fermi} observations, and in two separate energy bands 0.1$-$0.8 GeV and 0.8$-$300 GeV, a total of 4547 flares has been detected with a significance greater than $6\sigma$ (before trials), on the time scale of one week. Through spatial clustering of these flares, 518 variable gamma-ray sources are identified. Likely counterparts, based on positional coincidence, have been found for 441 sources, mostly among the blazar class of active galactic nuclei. For 77 2FAV sources, no likely gamma-ray counterpart has been found. For each source in the catalog, we provide the time, location, and spectrum of each flaring episode. Studying the spectra of the flares, we observe a harder-when-brighter behavior for flares associated with blazars, with the exception of BL Lac flares detected in the low-energy band. The photon indexes of the flares are never significantly smaller than 1.5. For a leptonic model, and under the assumption of isotropy, this limit suggests that the spectrum of the freshly accelerated electrons is never harder than $p\sim$2., Comment: Accepted for publication by The Astrophysical Journal Supplement. Online analysis results available at http://fermi.gsfc.nasa.gov/ssc/data/access/lat/FAVA/index.php . Corresponding authors: M. Giomi, R. Buehler, D. Kocevski, and M. Ajello
Published: 2016
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17. The extreme environment in the center of Mrk 876 and the switch on of its AGN activity

Author: Giacomo Vianello, E. Orlando, Igor V. Moskalenko, and Eugenio Bottacini
Subjects: Physics, Astronomy, Extreme environment, Center (algebra and category theory)
Published: 2016
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18. The X-Ray Counterpart of the Gamma-Ray Sky

Author: Eugenio Bottacini and Marco Ajello
Subjects: Physics, Sky, media_common.quotation_subject, Gamma ray, X-ray, Astrophysics, media_common
Published: 2016
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19. Erratum: 'Search for Gamma-Ray Emission from the Coma Cluster with Six Years of Fermi-LAT Data' (2016, ApJ, 819, 149)

Author: Luca Latronico, I. A. Grenier, E. Cavazzuti, David H. Green, Igor V. Moskalenko, Hiroyasu Tajima, Johann Cohen-Tanugi, Francesco Longo, L. Di Venere, S. Murgia, G. A. Caliandro, Gloria Spandre, Jan Conrad, Olaf Reimer, Liang Li, Guido Barbiellini, T. Ohsugi, Johan Bregeon, S. Rainò, Tsunefumi Mizuno, Ronaldo Bellazzini, M. Orienti, G. Chiaro, S. Cutini, C. Favuzzi, Diego F. Torres, Yasushi Fukazawa, G. Jóhannesson, Eric Charles, A. De Angelis, G. Tosti, E. J. Siskind, S. Maldera, Carmelo Sgrò, Riccardo Rando, P. Fusco, Giacomo Vianello, S. J. Fegan, G. Godfrey, Jean Ballet, W. B. Atwood, M. Caragiulo, E. Nuss, F. Loparco, J. W. Hewitt, D. Horan, L. Tibaldo, Markus Ackermann, Nicola Giglietto, David Paneque, M. Kuss, Vahé Petrosian, Stefano Ciprini, E. Troja, M. Mayer, Elliott D. Bloom, R. Buehler, M. N. Lovellette, F. de Palma, P. A. Caraveo, Seb. Funk, R. Bonino, Persis S. Drell, Peter F. Michelson, Marcello Giroletti, Marco Ajello, J. B. Thayer, F. Piron, G. M. Madejski, Hiromitsu Takahashi, Andrea Albert, F. Gargano, E. Orlando, P. Lubrano, Jingcheng Li, J. F. Ormes, Roger Blandford, A. Reimer, J. M. Casandjian, K. S. Wood, Stephan Zimmer, Luca Baldini, M. E. Monzani, Sylvain Guiriec, Mn Mazziotta, Yoel Rephaeli, Melissa Pesce-Rollins, T. A. Porter, Denis Bastieri, Seth Digel, Elisabetta Bissaldi, G. Pivato, E. Hays, Eugenio Bottacini, Alberto Manfreda, Dario Gasparrini, Miguel A. Sánchez-Conde, F. Spada, Stefan Larsson, M. Razzano, Filippo D'Ammando, Keith Bechtol, A. Chekhtman, Warit Mitthumsiri, P. Spinelli, Francesco Giordano, R. A. Cameron, P. Bruel, R. Desiante, A. Morselli, Claudia Cecchi, ITA, USA, FRA, and DEU
Subjects: Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Space and Planetary Science, 0103 physical sciences, Coma Cluster, ddc:520, 010306 general physics, Fermi Gamma-ray Space Telescope
Abstract: We present results from $\gamma$-ray observations of the Coma cluster incorporating six years of Fermi-LAT data and the newly released "Pass 8" event-level analysis. Our analysis of the region reveals low-significance residual structures within the virial radius of the cluster that are too faint for a detailed investigation with the current data. Using a likelihood approach that is free of assumptions on the spectral shape we derive upper limits on the $\gamma$-ray flux that is expected from energetic particle interactions in the cluster. We also consider a benchmark spatial and spectral template motivated by models in which the observed radio halo is mostly emission by secondary electrons. In this case, the median expected and observed upper limits for the flux above 100 $\mathrm{MeV}$ are 1.7 × $10^{−9} ph$ $cm^{−2} s^{−1}$ and 5.2 × $10^{−9} ph$ $cm^{−2} s^{−1}$ respectively (the latter corresponds to residual emission at the level of 1.8$\sigma$). These bounds are comparable to or higher than predicted levels of hadronic gamma-ray emission in cosmic-ray (CR) models with or without reacceleration of secondary electrons, although direct comparisons are sensitive to assumptions regarding the origin and propagation mode of CRs and magnetic field properties. The minimal expected $\gamma$-ray flux from radio and star-forming galaxies within the Coma cluster is roughly an order of magnitude below the median sensitivity of our analysis.
Published: 2018
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20. Fermi-LAT Observation of 3C 454.3 during its May-July 2014 outburst

Author: S. Buson, R. J. Britto, Eugenio Bottacini, Benoit Lott, and Soebur Razzaque
Subjects: Physics, Astrophysics, Fermi Gamma-ray Space Telescope
Published: 2016
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21. Minute-timescale >100 MeV γ-Ray Variability during the Giant Outburst of Quasar 3C 279 Observed by Fermi-LAT in 2015 June

Author: M. Caragiulo, R. Bonino, Nestor Mirabal, M. Sikora, Seth Digel, F. Spada, Dario Gasparrini, S. Maldera, F. Costanza, D. J. Thompson, Tsunefumi Mizuno, Richard Anantua, S. Cutini, J. D. Magill, P. Spinelli, J. Becerra González, Elisabetta Bissaldi, G. Chiaro, G. Pivato, Francesco Longo, P. Fusco, Yasushi Fukazawa, T. A. Porter, Ronaldo Bellazzini, E. Orlando, Daniel Kocevski, Igor V. Moskalenko, Nicola Giglietto, Lucas Guillemot, D. Horan, M. Hayashida, Yasunobu Uchiyama, Guido Barbiellini, M. Di Mauro, Lukasz Stawarz, C. Favuzzi, M. N. Lovellette, P. A. Caraveo, Soebur Razzaque, Francesco Giordano, Persis S. Drell, Shanta M. Zimmer, Carmelo Sgrò, Riccardo Rando, I. A. Grenier, Diego F. Torres, R. A. Cameron, D. Simone, E. Nuss, David Paneque, S. Funk, G. La Mura, Krzysztof Nalewajko, G. Jóhannesson, M. Kuss, P. Bruel, M. Razzano, Filippo D'Ammando, Denis Bastieri, E. Hays, F. Loparco, Yajie Yuan, J. S. Perkins, R. Buehler, James Chiang, Roger Blandford, J. Li, Marcello Giroletti, S. Kensei, Matteo Negro, A. Morselli, Stefan Larsson, F. de Palma, M. E. Monzani, Melissa Pesce-Rollins, R. Desiante, Eugenio Bottacini, A. Reimer, Alberto Manfreda, J. B. Thayer, Claudia Cecchi, Luca Baldini, Sylvain Guiriec, N. Di Lalla, Mn Mazziotta, P. F. Michelson, S. J. Fegan, Jeffrey D. Scargle, T. Ohsugi, B. Lott, F. Piron, G. M. Madejski, Katsuaki Asano, P. Lubrano, Stefano Ciprini, E. Troja, M. Mayer, Elliott D. Bloom, Luca Latronico, Elizabeth C. Ferrara, E. J. Siskind, Markus Ackermann, F. Gargano, C. C. Cheung, E. Cavazzuti, Johann Cohen-Tanugi, L. Di Venere, G. A. Caliandro, Giacomo Principe, ITA, Ackermann, M, Anantua, R., Asano, K., Baldini, L., Barbiellini, G., Bastieri, D., Gonzalez, J. Becerra, Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Bruel, P., Buehler, R., Caliandro, G. A., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Cheung, C. C., Chiang, J., Chiaro, G., Ciprini, S., Cohen Tanugi, J., Costanza, F., Cutini, S., D'Ammando, F., Palma, F. De, Desiante, R., Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Drell, P. S., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Grenier, I. A., Guillemot, L., Guiriec, S., Hayashida, M., Hays, E., Horan, D., Jóhannesson, G., Kensei, S., Kocevski, D., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, Francesco, Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Magill, J. D., Maldera, S., Manfreda, A., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Nalewajko, K., Negro, M., Nuss, E., Ohsugi, T., Orlando, E., Paneque, D., Perkins, J. S., Pesce Rollins, M., Piron, F., Pivato, G., Porter, T. A., Principe, G., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Scargle, J. D., Sgr, C., Sikora, M., Simone, D., Siskind, E. J., Spada, F., Spinelli, P., Stawarz, L., Thayer, J. B., Thompson, D. J., Torres, D. F., Troja, E., Uchiyama, Y., Yuan, Y., Zimmer, S., Ackermann M, Anantua R, Asano K, Baldini L, Barbiellini G, Bastieri D, Gonzalez JB, Bellazzini R, Bissaldi E, Blandford RD, Bloom ED, Bonino R, Bottacini E, Bruel P, Buehler R, Caliandro GA, Cameron RA, Caragiulo M, Caraveo PA, Cavazzuti E, Cecchi C, Cheung CC, Chiang J, Chiaro G, Ciprini S, Cohen-Tanugi J, Costanza F, Cutini S, DAmmando F, De Palma F, Desiante R, Digel SW, Di Lalla N, Di Mauro M, Di Venere L, Drell PS, Favuzzi C, Fegan SJ, Ferrara EC, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Grenier IA, Guillemot L, Guiriec S, Hayashida M, Hays E, Horan D, Johannesson G, Kensei S, Kocevski D, Kuss M, La Mura G, Larsson S, Latronico L, Li J, Longo F, Loparco F, Lott B, Lovellette MN, Lubrano P, Madejski GM, Magill JD, Maldera S, Manfreda A, Mayer M, Mazziotta MN, Michelson PF, Mirabal N, Mizuno T, Monzani ME, Morselli A, Moskalenko IV, Nalewajko K, Negro M, Nuss E, Ohsugi T, Orlando E, Paneque D, Perkins JS, Pesce-Rollins M, Piron F, Pivato G, Porter TA, Principe G, Rando R, Razzano M, Razzaque S, Reimer A, Scargle JD, Sgro C, Sikora M, Simone D, Siskind EJ, Spada F, Spinelli P, Stawarz L, Thayer JB, Thompson DJ, Torres DF, Troja E, Uchiyama Y, Yuan Y, and Zimmer S
Subjects: Space and Planetary Science, Astronomy and Astrophysics, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, jets [galaxies], Astrophysics, galaxies: active – galaxies: jets – gamma rays: galaxies – quasars: individual (3C 279) – radiation mechanisms: non-thermal, 01 natural sciences, 7. Clean energy, Luminosity, quasars: individual (3C 279), symbols.namesake, 0103 physical sciences, gamma rays: galaxies, individual: 3C 279 [quasars], Absorption (logic), 010306 general physics, Blazar, 010303 astronomy & astrophysics, Physics, Quasar, Astronomy and Astrophysic, galaxies: jets, radiation mechanisms: non-thermal, Orbital period, non-thermal [radiation mechanisms], Astrophysics - Astrophysics of Galaxies, Lorentz factor, 13. Climate action, active [galaxies], galaxies [gamma rays], symbols, ddc:520, Production (computer science), Astrophysics - High Energy Astrophysical Phenomena, Fermi Gamma-ray Space Telescope
Abstract: On 2015 June 16, Fermi-LAT observed a giant outburst from the flat spectrum radio quasar 3C 279 with a peak $>100$ MeV flux of $\sim3.6\times10^{-5}\;{\rm photons}\;{\rm cm}^{-2}\;{\rm s}^{-1}$ averaged over orbital period intervals. It is the historically highest $\gamma$-ray flux observed from the source including past EGRET observations, with the $\gamma$-ray isotropic luminosity reaching $\sim10^{49}\;{\rm erg}\;{\rm s}^{-1}$. During the outburst, the Fermi spacecraft, which has an orbital period of 95.4 min, was operated in a special pointing mode to optimize the exposure for 3C 279. For the first time, significant flux variability at sub-orbital timescales was found in blazar observations by Fermi-LAT. The source flux variability was resolved down to 2-min binned timescales, with flux doubling times less than 5 min. The observed minute-scale variability suggests a very compact emission region at hundreds of Schwarzschild radii from the central engine in conical jet models. A minimum bulk jet Lorentz factor ($\Gamma$) of 35 is necessary to avoid both internal $\gamma$-ray absorption and super-Eddington jet power. In the standard external-radiation-Comptonization scenario, $\Gamma$ should be at least 50 to avoid overproducing the synchrotron-self-Compton component. However, this predicts extremely low magnetization ($\sim5\times10^{-4}$). Equipartition requires $\Gamma$ as high as 120, unless the emitting region is a small fraction of the dissipation region. Alternatively, we consider $\gamma$ rays originating as synchrotron radiation of $\gamma_{\rm e}\sim1.6\times10^6$ electrons, in magnetic field $B\sim1.3$ kG, accelerated by strong electric fields $E\sim B$ in the process of magnetoluminescence. At such short distance scales, one cannot immediately exclude production of $\gamma$ rays in hadronic processes., Comment: 8 pages, 4 figures. Accepted for publication in ApJ Letter. --Corresponding authors: Masaaki Hayashida (mahaya_at_icrr.u-tokyo.ac.jp), Greg Madejski (madejski_at_slac.stanford.edu), and Krzysztof Nalewajko (knalew_at_camk.edu.pl)
Published: 2016
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22. FERMI-LAT OBSERVATIONS of HIGH-ENERGY γ-RAY EMISSION TOWARD the GALACTIC CENTER

Author: J. D. Magill, W. B. Atwood, M. Ohno, Nicola Giglietto, T. Ohsugi, Eleonora Troja, Andrea Albert, R. Desiante, Paolo Giommi, R. A. Cameron, F. Spada, R. Caputo, Hiroyasu Tajima, James Chiang, Roger Blandford, Jan Conrad, Nicola Omodei, J. F. Ormes, Stefan Larsson, P. Bruel, Carmelo Sgrò, Riccardo Rando, E. Nuss, T. J. Brandt, Johan Bregeon, G. Jóhannesson, A. Morselli, Stephan Zimmer, David Paneque, M. Kuss, Eugenio Bottacini, Alberto Manfreda, Liang Li, Keith Bechtol, G. Godfrey, F. de Palma, F. Piron, Denis Bastieri, M. Gustafsson, M. E. Monzani, C. Karwin, Guido Barbiellini, D.J. Suson, A. A. Moiseev, Alice K. Harding, Jingcheng Li, S. Rainò, Tsunefumi Mizuno, F. Loparco, G. A. Gomez-Vargas, P. M. Saz Parkinson, R. Buehler, M. Razzano, G. Chiaro, Elisabetta Bissaldi, Filippo D'Ammando, A. Reimer, G. Pivato, E. J. Siskind, M. N. Lovellette, D. Malyshev, H. Takahashi, D.F. Torres, D. Horan, R. Bonino, P. Fusco, Peter F. Michelson, Marcello Giroletti, P. A. Caraveo, T. Glanzman, S. Maldera, A. S. Johnson, S. Cutini, Melissa Pesce-Rollins, Y. Uchiyama, T. Kamae, Claudia Cecchi, Francesco Longo, Persis S. Drell, Steven Ritz, T. A. Porter, E. Orlando, L. R. Cominsky, Igor V. Moskalenko, Luca Latronico, Olaf Reimer, A. Chekhtman, Sylvain Guiriec, John W. Hewitt, M. Caragiulo, Elizabeth C. Ferrara, D.A. Smith, Warit Mitthumsiri, Mn Mazziotta, P. Lubrano, C. Favuzzi, G. Zaharijas, P. Spinelli, Francesco Giordano, Marco Ajello, J. B. Thayer, T. Jogler, Dario Gasparrini, K. S. Wood, B.L. Winer, S. Buson, Stefano Ciprini, Miguel A. Sánchez-Conde, F. Gargano, M. Mayer, Elliott D. Bloom, Johann Cohen-Tanugi, L. Di Venere, Jürgen Knödlseder, S. Murgia, G. A. Caliandro, I. A. Grenier, Ronaldo Bellazzini, Gloria Spandre, A. B. Hill, A. De Angelis, G. Tosti, Giacomo Vianello, Laboratoire Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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), Département de Physique des Particules (ex SPP) (DPhP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), Université de Toulouse (UT), 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), Fermi-LAT, Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées, Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), ITA, Ajello M, Albert A, Atwood WB, Barbiellini G, Bastieri D, Bechtol K, Bellazzini R, Bissaldi E, Blandford RD, Bloom ED, Bonino R, Bottacini E, Brandt TJ, Bregeon J, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caputo R, Caragiulo M, Carave PA, Cecchi C, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Cohen-Tanugi J, Cominsky LR, Conrad J, Cutini S, DAmmando F, de Angelis A, de Palma F, Desiante R, Di Venere L, Drell PS, Favuzzi C, Ferrara EC, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giommi P, Giordano F, Giroletti M, Glanzman T, Godfrey G, Gomez-Vargas GA, Grenier IA, Guiriec S, Gustafsson M, Harding AK, Hewitt JW, Hill AB, Horan D, Jogler T, Johannesson G, Johnson AS, Kamae T, Karwin C, Knodlseder J, Kuss M, Larsson S, Latronico L, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Magill J, Maldera S, Malyshev D, Manfreda A, Mayer M, Mazziotta MN, Michelson PF, Mitthumsiri W, Mizuno T, Moiseev AA, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nuss E, Ohno M, Ohsugi T, Omodei N, Orlando E, Ormes JF, Paneque D, Pesce-Rollins M, Piron F, Pivato G, Porter TA, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Ritz S, Sanchez-Conde M, Parkinson PMS, Sgro C, Siskind EJ, Smith DA, Spada F, Spandre G, Spinelli P, Suson DJ, Tajima H, Takahashi H, Thayer JB, Torres DF, Tosti G, Troja E, Uchiyama Y, Vianello G, Winer BL, Wood KS, Zaharijas G, Zimmer S, Ajello, M., Albert, A., Atwood, W. B., Barbiellini, G., Bastieri, D., Bechtol, K., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Cecchi, C., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Cohen Tanugi, J., Cominsky, L. R., Conrad, J., Cutini, S., D'Ammando, F., De Angelis, A., De Palma, F., Desiante, R., Di Venere, L., Drell, P. S., Favuzzi, C., Ferrara, E. C., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giommi, P., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Gomez Vargas, G. A., Grenier, I. A., Guiriec, S., Gustafsson, M., Harding, A. K., Hewitt, J. W., Hill, A. B., Horan, D., Jogler, T., Jóhannesson, G., Johnson, A. S., Kamae, T., Karwin, C., Knödlseder, J., Kuss, M., Larsson, S., Latronico, L., Li, J., Li, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J., Maldera, S., Malyshev, D., Manfreda, A., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Nuss, E., Ohno, M., Ohsugi, T., Omodei, N., Orlando, E., Ormes, J. F., Paneque, D., Pesce Rollins, M., Piron, F., Pivato, G., Porter, T. A., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Ritz, S., Sánchez Conde, M., Saz Parkinson, P. M., Sgrò, C., Siskind, E. J., Smith, D. A., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Takahashi, H., Thayer, J. B., Torres, D. F., Tosti, G., Troja, E., Uchiyama, Y., Vianello, G., Winer, B. L., Wood, K. S., Zaharijas, G., and Zimmer, S.
Subjects: cosmic rays, Galaxy: center, gamma-rays: general, gamma-rays: ISM, radiation mechanisms: non-thermal, cosmic rays, Galaxy: center, gamma-rays: general, gamma-rays: ISM, radiation mechanisms: non-thermal, Astronomy and Astrophysics, Space and Planetary Science, Astrophysics, 01 natural sciences, High Energy Physics - Experiment, law.invention, law, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Emission spectrum, ISM [gamma-rays], 010303 astronomy & astrophysics, cosmic ray, Physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Galactic Center, Gamma ray, center [Galaxy], non-thermal [radiation mechanisms], particle: interaction, High Energy Physics - Phenomenology, gamma ray: emission, cosmic radiation, electron: interaction, [SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], Astrophysics - High Energy Astrophysical Phenomena, general [gamma-rays], Astrophysics::High Energy Astrophysical Phenomena, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, GLAST, emission: model, Telescope, gas, 0103 physical sciences, structure, Astrophysics::Galaxy Astrophysics, 010308 nuclear & particles physics, background, scattering, nucleus, Astronomy, Astronomy and Astrophysic, Galaxy, Interstellar medium, flux, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], ddc:520, galaxy, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal 819(1), 44 (2016). doi:10.3847/0004-637X/819/1/44, The Fermi Large Area Telescope (LAT) has provided the most detailed view to date of the emission toward the Galactic center (GC) in high-energy γ-rays. This paper describes the analysis of data taken during the first 62 months of the mission in the energy range 1–100 GeV from a 15° × 15° region about the direction of the GC. Specialized interstellar emission models (IEMs) are constructed to enable the separation of the γ-ray emissions produced by cosmic ray particles interacting with the interstellar gas and radiation fields in the Milky Way into that from the inner ~1 kpc surrounding the GC, and that from the rest of the Galaxy. A catalog of point sources for the 15° × 15° region is self-consistently constructed using these IEMs: the First Fermi-LAT Inner Galaxy Point Source Catalog (1FIG). The spatial locations, fluxes, and spectral properties of the 1FIG sources are presented, and compared with γ-ray point sources over the same region taken from existing catalogs. After subtracting the interstellar emission and point-source contributions a residual is found. If templates that peak toward the GC are used to model the positive residual the agreement with the data improves, but none of the additional templates tried account for all of its spatial structure. The spectrum of the positive residual modeled with these templates has a strong dependence on the choice of IEM., Published by Univ.11032, Chicago, Ill. [u.a.]
Published: 2016
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23. Deeply X-raying the high-energy sky

Author: Marco Ajello and Eugenio Bottacini
Subjects: Swift, History, High energy, Photon, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Education, Physics and Astronomy (all), Astrophysics::Galaxy Astrophysics, computer.programming_language, media_common, High Energy Astrophysical Phenomena (astro-ph.HE), Ibis, Physics, biology, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Thermal emission, biology.organism_classification, Computer Science Applications, Sky, Astrophysics - High Energy Astrophysical Phenomena, computer, Fermi Gamma-ray Space Telescope
Abstract: All-sky explorations by Fermi-LAT have revolutionized our view of the gamma-ray sky. While its ongoing all-sky survey counts thousands of sources, essential issues related to the nature of unassociated sources call for sensitive all-sky surveys at hard X-ray energies that allow for their identification. We present the results of the association of the Fermi-LAT second source catalog to hard X-ray detected sources., 5 pages, 4 figures, submitted JPCS
Published: 2016

24. 3C 279 IN OUTBURST IN 2015 JUNE: A BROADBAND SED STUDY BASED ON THE INTEGRAL DETECTION

Author: Werner Collmar, Elena Pian, Markus Boettcher, and Eugenio Bottacini
Subjects: Physics, Jet (fluid), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Relativistic particle, Magnetic field, symbols.namesake, Space and Planetary Science, 0103 physical sciences, Eddington luminosity, symbols, Spectral energy distribution, Blazar, 010303 astronomy & astrophysics, Equipartition theorem
Abstract: Blazars radiate from radio through gamma-ray frequencies and thereby make ideal targets for multifrequency studies. Such studies allow the properties of the emitting jet to be constrained. 3C 279 is among the most notable blazars and therefore subject to extensive multifrequency campaigns. We report the results of a campaign ranging from near-IR to gamma-ray energies that targeted an outburst of 3C 279 in 2015 June. The campaign pivots around the detection in only 50 ks by INTEGRAL, whose IBIS/ISGRI data pin down the high-energy component of the spectral energy distribution (SED) between Swift-XRT data and Fermi-LAT data. The overall SED from near-IR to gamma rays can be well represented by either a leptonic or a lepto-hadronic radiation transfer model. Even though the data are equally well represented by the two models, their inferred parameters challenge the physical conditions in the jet. In fact, the leptonic model requires parameters with a magnetic field far below equipartition with the relativistic particle energy density. In contrast, equipartition may be achieved with the lepto-hadronic model, although this implies an extreme total jet power close to the Eddington luminosity.
Published: 2016

25. FERMI LAT STACKING ANALYSIS of SWIFT LOCALIZED GRBs

Author: Liang Li, Guido Barbiellini, Stefano Ciprini, M. Orienti, L. Tibaldo, M. N. Mazziotta, Chryssa Kouveliotou, P. N. Bhat, M. Mayer, F. Spada, E. Orlando, N. Gehrels, Olaf Reimer, Luca Baldini, A. Franckowiak, John W. Hewitt, André Schulz, K. S. Wood, Sylvain Guiriec, Claudia Cecchi, M. E. Monzani, T. Ohsugi, Eleonora Troja, C. Favuzzi, Stefan Funk, A. von Kienlin, Hiromitsu Takahashi, F. Gargano, S. Cutini, A. Reimer, Rodrigo Nemmen, Michael David Werner, Carmelo Sgrò, Riccardo Rando, Marco Ajello, D. Horan, G. Godfrey, Ronaldo Bellazzini, E. Nuss, J. B. Thayer, Brandon Anderson, R. Desiante, T. J. Brandt, E. J. Siskind, David Paneque, M. Kuss, P. Fusco, M. Razzano, Filippo D'Ammando, Eric Charles, Eugenio Bottacini, F. Loparco, W. B. Atwood, J. S. Perkins, S. Buson, T. A. Porter, F. de Palma, Francesco Longo, Nicola Giglietto, A. Morselli, Stefan Larsson, Magnus Axelsson, Elisabetta Bissaldi, G. Pivato, Markus Ackermann, M. N. Lovellette, A. De Angelis, P. A. Caraveo, Persis S. Drell, G. Tosti, M. Caragiulo, F. Piron, M. Schaal, Johan Bregeon, Masanori Ohno, M. Tinivella, J. L. Racusin, S. Rainò, Julie McEnery, Tsunefumi Mizuno, Denis Bastieri, Giacomo Vianello, James Chiang, G. Chiaro, Jingcheng Li, Nicola Omodei, J. E. Grove, A. B. Hill, R. Bonino, R. Claus, Dario Gasparrini, A. Chekhtman, P. Lubrano, Melissa Pesce-Rollins, R. A. Cameron, P. Bruel, Daniel Kocevski, W. B. Focke, P. Spinelli, Francesco Giordano, Jan Conrad, Diego F. Torres, R. Buehler, Peter F. Michelson, Marcello Giroletti, Johann Cohen-Tanugi, L. Di Venere, S. Murgia, G. A. Caliandro, I. A. Grenier, Gloria Spandre, Gudlaugur Johannesson, Ackermann M, Ajello M, Anderson B, Atwood WB, Axelsson M, Baldini L, Barbiellini G, Bastieri D, Bellazzini R, Bhat PN, Bissaldi E, Bonino R, Bottacini E, Brandt TJ, Bregeon J, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caragiulo M, Caraveo PA, Cecchi C, Charles E, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Claus R, Cohen-Tanugi J, Conrad J, Cutini S, DAmmando F, de Angelis A, de Palma F, Desiante R, Di Venere L, Drell PS, Favuzzi C, Focke WB, Franckowiak A, Funk S, Fusco P, Gargano F, Gasparrini D, Gehrels N, Giglietto N, Giordano F, Giroletti M, Godfrey G, Grenier IA, Grove JE, Guiriec S, Hewitt JW, Hill AB, Horan D, Johannesson G, Kocevski D, Kouveliotou C, Kuss M, Larsson S, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Mayer M, Mazziotta MN, McEnery JE, Michelson PF, Mizuno T, Monzani ME, Morselli A, Murgia S, Nemmen R, Nuss E, Ohno M, Ohsugi T, Omodei N, Orienti M, Orlando E, Paneque D, Perkins JS, Pesce-Rollins M, Piron F, Pivato G, Porter TA, Racusin JL, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Schaal M, Schulz A, Sgro C, Siskind EJ, Spada F, Spandre G, Spinelli P, Takahashi H, Thayer JB, Tibaldo L, Tinivella M, Torres DF, Tosti G, Troja E, Vianello G, von Kienlin A, Werner M, Wood KS, Ackermann, M., Ajello, M., Anderson, B., Atwood, W. B., Axelsson, M., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bhat, P. N., Bissaldi, E., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cecchi, C., Charles, E., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Cohen-Tanugi, J., Conrad, J., Cutini, S., D'Ammando, F., De Angelis, A., De Palma, F., Desiante, R., Di Venere, L., Drell, P. S., Favuzzi, C., Focke, W. B., Franckowiak, A., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Giglietto, N., Giordano, F., Giroletti, M., Godfrey, G., Grenier, I. A., Grove, J. E., Guiriec, S., Hewitt, J. W., Hill, A. B., Horan, D., Jóhannesson, G., Kocevski, D., Kouveliotou, C., Kuss, M., Larsson, S., Li, J., Li, L., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Mayer, M., Mazziotta, M. N., Mcenery, J. E., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Murgia, S., Nemmen, R., Nuss, E., Ohno, M., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Paneque, D., Perkins, J. S., Pesce-Rollins, M., Piron, F., Pivato, G., Porter, T. A., Racusin, J. L., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Schaal, M., Schulz, A., Sgrò, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Takahashi, H., Thayer, J. B., Tibaldo, L., Tinivella, M., Torres, D. F., Tosti, G., Troja, E., Vianello, G., Kienlin, A. Von, Werner, M., Wood, K. S., and ITA
Subjects: Swift, Astrophysics::High Energy Astrophysical Phenomena, gamma-ray burst: general, Stacking, Astrophysics, general [gamma-ray burst], 01 natural sciences, law.invention, Telescope, law, 0103 physical sciences, 010306 general physics, X-rays: bursts, 010303 astronomy & astrophysics, computer.programming_language, Physics, gamma rays: general, methods: data analysis, Astronomy and Astrophysics, Space and Planetary Science, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysic, 13. Climate action, data analysi [methods], ddc:520, Astrophysics::Earth and Planetary Astrophysics, burst [X-rays], general [gamma rays], computer, methods: data analysi, Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal 822(2), 68 (2016). doi:10.3847/0004-637X/822/2/68, We perform a comprehensive stacking analysis of data collected by the Fermi Large Area Telescope (LAT) of γ-ray bursts (GRBs) localized by the Swift spacecraft, which were not detected by the LAT but which fell within the instrument's field of view at the time of trigger. We examine a total of 79 GRBs by comparing the observed counts over a range of time intervals to that expected from designated background orbits, as well as by using a joint likelihood technique to model the expected distribution of stacked counts. We find strong evidence for subthreshold emission at MeV to GeV energies using both techniques. This observed excess is detected during intervals that include and exceed the durations typically characterizing the prompt emission observed at keV energies and lasts at least 2700 s after the co-aligned burst trigger. By utilizing a novel cumulative likelihood analysis, we find that although a burst's prompt γ-ray and afterglow X-ray flux both correlate with the strength of the subthreshold emission, the X-ray afterglow flux measured by Swift's X-ray Telescope at 11 hr post trigger correlates far more significantly. Overall, the extended nature of the subthreshold emission and its connection to the burst's afterglow brightness lend further support to the external forward shock origin of the late-time emission detected by the LAT. These results suggest that the extended high-energy emission observed by the LAT may be a relatively common feature but remains undetected in a majority of bursts owing to instrumental threshold effects., Published by Univ.11032, Chicago, Ill. [u.a.]
Published: 2016
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26. Measurement of the high-energy gamma-ray emission from the Moon with the Fermi Large Area Telescope

Author: J. W. Hewitt, A. Chekhtman, D. Horan, P. Lubrano, A. De Angelis, G. Tosti, Giacomo Vianello, P. Fusco, Carmelo Sgrò, Riccardo Rando, E. Nuss, David Paneque, Tuneyoshi Kamae, Denis Bastieri, Paola Sala, S. Cutini, M. Kuss, Stefano Ciprini, J. D. Magill, M. Razzano, Filippo D'Ammando, S. Maldera, M. Mayer, Ronaldo Bellazzini, Melissa Pesce-Rollins, I. A. Grenier, A. Franckowiak, E. Cavazzuti, Brian L Winer, Gloria Spandre, Francesco Longo, Stefan Funk, Luca Baldini, F. Cerutti, F. Piron, F. Spada, M. Caragiulo, Dario Gasparrini, Xian Hou, Johann Cohen-Tanugi, L. Di Venere, Olaf Reimer, S. Murgia, G. A. Caliandro, F. Loparco, M. Yassine, W. B. Atwood, J. S. Perkins, M. N. Mazziotta, Alice K. Harding, Alessandro Cuoco, Vahé Petrosian, Nicola Giglietto, S. Rainò, Tsunefumi Mizuno, C. Favuzzi, Diego F. Torres, G. Godfrey, G. Chiaro, J. E. Grove, Marco Ajello, J. B. Thayer, F. Costanza, G. Iafrate, Warit Mitthumsiri, J. F. Ormes, R. Bonino, Hiromitsu Takahashi, Nicola Omodei, Andrea Albert, Jingcheng Li, M. N. Lovellette, W. B. Focke, P. Spinelli, P. A. Caraveo, M. E. Monzani, F. de Palma, T. Reposeur, Claudia Cecchi, Persis S. Drell, Seth Digel, Francesco Giordano, S. J. Fegan, James Chiang, L. Tibaldo, K. S. Wood, Roger Blandford, Eleonora Troja, Elisabetta Bissaldi, G. Pivato, R. Buehler, F. Gargano, S. Guiriec, R. A. Cameron, Peter F. Michelson, P. Bruel, Marcello Giroletti, R. Claus, E. J. Siskind, A. Reimer, D. J. Thompson, Gudlaugur Johannesson, R. Desiante, T. Glanzman, Markus Ackermann, Liang Li, Guido Barbiellini, Luca Latronico, A. Morselli, Stefan Larsson, Eugenio Bottacini, Alberto Manfreda, Arnaud Ferrari, Johan Bregeon, E. Orlando, Université Montpellier 2 - Sciences et Techniques (UM2), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Ackermann M, Ajello M, Albert A, Atwood WB, Baldini L, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, Blandford RD, Bonino R, Bottacini E, Bregeon J, Bruel P, Buehler R, Caliandro GA, Cameron RA, Caragiulo M, Caraveo PA, Cavazzuti E, Cecchi C, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Claus R, Cohen-Tanugi J, Costanza F, Cuoco A, Cutini S, DAmmando F, de Angelis A, de Palma F, Desiante R, Digel SW, Di Venere L, Drell PS, Favuzzi C, Fegan SJ, Focke WB, Franckowiak A, Funk S, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Grenier IA, Grove JE, Guiriec S, Harding AK, Hewitt JW, Horan D, Hou X, Iafrate G, Johannesson G, Kamae T, Kuss M, Larsson S, Latronico L, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Magill J, Maldera S, Manfreda A, Mayer M, Mazziotta MN, Michelson PF, Mitthumsiri W, Mizuno T, Monzani ME, Morselli A, Murgia S, Nuss E, Omodei N, Orlando E, Ormes JF, Paneque D, Perkins JS, Pesce-Rollins M, Petrosian V, Piron F, Pivato G, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Reposeur T, Sgro C, Siskind EJ, Spada F, Spandre G, Spinelli P, Takahashi H, Thayer JB, Thompson DJ, Tibaldo L, Torres DF, Tosti G, Troja E, Vianello G, Winer BL, Wood KS, Yassine M, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Caliandro, G. A., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Cohen Tanugi, J., Costanza, F., Cuoco, A., Cutini, S., D'Ammando, F., De Angelis, A., De Palma, F., Desiante, R., Digel, S. W., Di Venere, L., Drell, P. S., Favuzzi, C., Fegan, S. J., Focke, W. B., Franckowiak, A., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grenier, I. A., Grove, J. E., Guiriec, S., Harding, A. K., Hewitt, J. W., Horan, D., Hou, X., Iafrate, G., Jóhannesson, G., Kamae, T., Kuss, M., Larsson, S., Latronico, L., Li, J., Li, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J., Maldera, S., Manfreda, A., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Murgia, S., Nuss, E., Omodei, N., Orlando, E., Ormes, J. F., Paneque, D., Perkins, J. S., Pesce Rollins, M., Petrosian, V., Piron, F., Pivato, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Reposeur, T., Sgrò, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Takahashi, H., Thayer, J. B., Thompson, D. J., Tibaldo, L., Torres, D. F., Tosti, G., Troja, E., Vianello, G., Winer, B. L., Wood, K. S., Yassine, M., Cerutti, F., Ferrari, A., Sala, P. R., 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), Université Montpellier 2 - Sciences et Techniques ( UM2 ), 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 ), Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Centre d'Etudes Nucléaires de Bordeaux Gradignan ( CENBG ), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), 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), and ITA
Subjects: Physics and Astronomy (miscellaneous), Proton, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], emission: spectrum, Astrophysics, cosmic radiation: interaction, 7. Clean energy, 01 natural sciences, Spectral line, High Energy Physics - Experiment, law.invention, High Energy Physics - Experiment (hep-ex), helium: nucleus, law, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Emission spectrum, Moon, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Gamma Ray, Gamma ray, Gamma-ray astronomy, Cosmic Rays, solar, gamma ray: emission, high-energy gamma-ray emission, Moon, Fermi Large Area Telescope, Physics::Space Physics, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics and Astronomy, Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, satellite, FOS: Physical sciences, Cosmic ray, helium: spectrum, Cosmic Ray, gamma ray: energy spectrum, Article, GLAST, Telescope, surface: lunar, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, ddc:530, 010308 nuclear & particles physics, flux, 13. Climate action, correlation, p: cosmic radiation, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope
Abstract: We have measured the gamma-ray emission spectrum of the Moon using the data collected by the Large Area Telescope onboard the Fermi satellite during its first 7 years of operation, in the energy range from 30 MeV up to a few GeV. We have also studied the time evolution of the flux, finding a correlation with the solar activity. We have developed a full Monte Carlo simulation describing the interactions of cosmic rays with the lunar surface. The results of the present analysis can be explained in the framework of this model, where the production of gamma rays is due to the interactions of cosmic-ray proton and helium nuclei with the surface of the Moon. Finally, we have used our simulation to derive the cosmic-ray proton and helium spectra near Earth from the Moon gamma-ray data., Comment: Published by PRD, 16 pages, 11 figures, corresponding authors: F. Loparco and M. N. Mazziotta
Published: 2016
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27. FERMI-LAT OBSERVATIONS of the LIGO EVENT GW150914

Author: Denis Bastieri, G. A. Gomez-Vargas, Andrea Albert, J. L. Racusin, M. N. Mazziotta, Roger W. Romani, S. Maldera, James Chiang, Roger Blandford, Eric Charles, Gabrijela Zaharijas, Steven Ritz, R. J. Britto, D. J. Suson, P. M. Saz Parkinson, M. Marelli, Stephan Zimmer, Gudlaugur Johannesson, M. Caragiulo, M. Giomi, T. H. Burnett, T. J. Brandt, M. E. Monzani, Lucas Guillemot, David A. Smith, T. Ohsugi, Eleonora Troja, Liang Li, R. Bonino, Guido Barbiellini, A. Reimer, J. Becerra González, Nestor Mirabal, Dario Gasparrini, Elisabetta Bissaldi, G. Pivato, S. Kensei, Matteo Negro, N. Di Lalla, Luca Baldini, L. S. Rochester, A. Morselli, T. Glanzman, Seth Digel, P. Fusco, Eugenio Bottacini, Alberto Manfreda, A. Chekhtman, P. Lubrano, T. Reposeur, Matthew G. Baring, Sara Buson, Sylvain Guiriec, R. A. Cameron, Jean Ballet, E. Hays, A. Franckowiak, G. Godfrey, Brandon Anderson, J. G. Thayer, Stefano Ciprini, S. Cutini, A. A. Moiseev, Stefan Funk, T. A. Porter, D. Dumora, S. Rainò, J. D. Magill, Daniel Kocevski, Paolo Giommi, F. de Palma, Tsunefumi Mizuno, Marianne Lemoine-Goumard, M. Mayer, Elliott D. Bloom, G. Chiaro, F. Loparco, M. Orienti, F. Piron, G. M. Madejski, J. E. Grove, Yasushi Fukazawa, Marco Ajello, R. Dubois, J. B. Thayer, J. W. Hewitt, Manuel Meyer, Jonathan Granot, J. F. Ormes, Alice K. Harding, D. Horan, E. Orlando, E. Moretti, F. Costanza, T. Kamae, P. Spinelli, Melissa Pesce-Rollins, B. Condon, R. Desiante, Daniela Hadasch, Soebur Razzaque, Makoto Arimoto, Jingcheng Li, I. A. Grenier, K. S. Wood, L. Tibaldo, Francesco Giordano, Johan Bregeon, Nicola Omodei, Carmelo Sgrò, Riccardo Rando, A. B. Hill, E. Cavazzuti, Matthew Wood, Julie McEnery, D. Simone, E. Nuss, David Paneque, S. J. Fegan, M. Kuss, J. M. Casandjian, L. R. Cominsky, P. Bruel, Igor V. Moskalenko, Olaf Reimer, N. Gehrels, D. J. Thompson, C. Favuzzi, Tonia M. Venters, Giacomo Vianello, G. La Mura, Ronaldo Bellazzini, F. Gargano, Luca Latronico, Elizabeth C. Ferrara, E. J. Siskind, Magnus Axelsson, Markus Ackermann, Diego F. Torres, R. Buehler, Peter F. Michelson, Marcello Giroletti, F. Spada, R. Caputo, Hiroyasu Tajima, Stefan Larsson, Filippo D'Ammando, Alessandro Cuoco, W. B. Atwood, J. S. Perkins, Nicola Giglietto, M. N. Lovellette, P. A. Caraveo, Persis S. Drell, Francesco Longo, T. Jogler, Sylvia J. Zhu, Aaron Dominguez, Yasunobu Uchiyama, M. Di Mauro, David H. Green, Gloria Spandre, Johann Cohen-Tanugi, L. Di Venere, M.-H. Grondin, S. Murgia, G. A. Caliandro, Stanford University [Stanford], Groupe de Recherche en Physique des Hautes Energies (GRPHE), Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut Universitaire de Technologie de Colmar, Los Alamos National Laboratory (LANL), Santa Cruz Institute for Particle Physics (SCIPP), University of California [Santa Cruz] (UCSC), University of California-University of California, Groupe de Recherche en Economie Théorique et Appliquée (GREThA), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Stanford Linear Accelerator Center (SLAC), UGC-DAE Consortium for Scientific Research, AUTRES, Department of Clinical and Molecular Medicine, Institut Pasteur, Fondation Cenci Bolognetti - Istituto Pasteur Italia, Fondazione Cenci Bolognetti, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Università degli Studi di Roma 'La Sapienza' [Rome], IHU-LIRYC, CHU Bordeaux [Bordeaux]-Université Bordeaux Segalen - Bordeaux 2, GLAST, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Ricerca Metrologica, Torino, London School of Hygiene and Tropical Medicine (LSHTM), Istituto Nazionale di Fisica Nucleare, sezione di Bari (INFN, sezione di Bari), National Institute for Nuclear Physics (INFN), Istituto Nazionale di Astrofisica (INAF), École nationale supérieure d'architecture de Nantes (ENSA Nantes), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), GFSC Astrophysics Science Division, NASA Goddard Space Flight Center (GSFC), 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), Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, DIEE, University of Cagliari, University of Gothenburg (GU), China Agricultural University (CAU), Laboratoire de Météorologie Dynamique (UMR 8539) (LMD), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris)-École normale supérieure - Paris (ENS Paris), Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Hansen Experimental Physics Laboratory (HEPL), Institut Pasteur de Montevideo, Réseau International des Instituts Pasteur (RIIP), University of Botswana, Department of Animal and Avian Sciences, University of Maryland [College Park], University of Maryland System-University of Maryland System, Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Medical Sciences Division, Northern Ontario School of Medicine, Centre de Recherche Interdisciplinaire sur la Biologie, la Santé la Société, et l’Environnement, Université du Québec à Montréal (UQAM), Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Institute of Infection, Immunity and Inflammation, University of Glasgow, École nationale supérieure d'architecture de Versailles (ENSA-V), Department of Plant Sciences [Davis, CA], University of California [Davis] (UC Davis), Sea Mammal Research Unit, University of St Andrews [Scotland], Department of Physics [Tokyo], Rikkyo University [Tokyo], Naval Research Laboratory (NRL), Zhejiang University, Laboratoire de Conception Fabrication Commande (LCFC), Université de Lorraine (UL)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Stanford University, Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-IUT de Colmar, Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), University of California [Santa Cruz] (UC Santa Cruz), University of California (UC)-University of California (UC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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), 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), SLAC National Accelerator Laboratory (SLAC), Department of Molecular Medicine, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Université Bordeaux Segalen - Bordeaux 2-CHU Bordeaux [Bordeaux], Istituto Nazionale di Fisica Nucleare (INFN), 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, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), GSFC Astrophysics Science Division, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Hansen Experimental Physics Lab [Stanford] (HEPL), Université du Québec à Montréal = University of Québec in Montréal (UQAM), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Department of Plant Sciences [Univ California Davis] (Plant - UC Davis), Université de Lorraine (UL)-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), ITA, Institut Universitaire de Technologie de Colmar-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA)), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], 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), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Département des Géosciences - ENS Paris, École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École des Ponts ParisTech (ENPC)-École polytechnique (X)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Ackermann, M., Ajello, M., Albert, A., Anderson, B., Arimoto, M., Atwood, W. B., Axelsson, M., Baldini, L., Ballet, J., Barbiellini, G., Baring, M. G., Bastieri, D., Gonzalez, J. Becerra, Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Britto, R. J., Bruel, P., Buehler, R., Burnett, T. H., Buson, S., Caliandro, G. A., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Casandjian, J. M., Cavazzuti, E., Charles, E., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Cohen Tanugi, J., Cominsky, L. R., Condon, B., Costanza, F., Cuoco, A., Cutini, S., D'Ammando, F., Palma, F. De, Desiante, R., Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Domnguez, A., Drell, P. S., Dubois, R., Dumora, D., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Giglietto, N., Giomi, M., Giommi, P., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Gomez Vargas, G. A., Granot, J., Green, D., Grenier, I. A., Grondin, M. H., Grove, J. E., Guillemot, L., Guiriec, S., Hadasch, D., Harding, A. K., Hays, E., Hewitt, J. W., Hill, A. B., Horan, D., Jogler, T., Jóhannesson, G., Kamae, T., Kensei, S., Kocevski, D., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Lemoine Goumard, M., Li, J., Li, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Madejski, G. M., Magill, J., Maldera, S., Manfreda, A., Marelli, M., Mayer, M., Mazziotta, M. N., Mcenery, J. E., Meyer, M., Michelson, P. F., Mirabal, N., Mizuno, T., Moiseev, A. A., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Murgia, S., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Perkins, J. S., Pesce Rollins, M., Piron, F., Pivato, G., Porter, T. A., Racusin, J. L., Rain, S., Rando, R., Razzaque, S., Reimer, A., Reimer, O., Reposeur, T., Ritz, S., Rochester, L. S., Romani, R. W., Parkinson, P. M. Saz, Sgr, C., Simone, D., Siskind, E. J., Smith, D. A., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Thayer, J. G., Thayer, J. B., Thompson, D. J., Tibaldo, L., Torres, D. F., Troja, E., Uchiyama, Y., Venters, T. M., Vianello, G., Wood, K. S., Wood, M., Zaharijas, G., Zhu, S., Zimmer, S., Ackermann M, Ajello M, Albert A, Anderson B, Arimoto M, Atwood WB, Axelsson M, Baldini L, Ballet J, Barbiellini G, Baring MG, Bastieri D, Gonzalez JB, Bellazzini R, Bissaldi E, Blandford RD, Bloom ED, Bonino R, Bottacini E, Brandt TJ, Bregeon J, Britto RJ, Bruel P, Buehler R, Burnett TH, Buson S, Caliandro GA, Cameron RA, Caputo R, Caragiulo M, Caraveo PA, Casandjian JM, Cavazzuti E, Charles E, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Cohen-Tanugi J, Cominsky LR, Condon B, Costanza F, Cuoco A, Cutini S, DAmmando F, de Palma F, Desiante R, Digel SW, Di Lalla N, Di Mauro M, Di Venere L, Dominguez A, Drell PS, Dubois R, Dumora D, Favuzzi C, Fegan SJ, Ferrara EC, Franckowiak A, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Gehrels N, Giglietto N, Giomi M, Giommi P, Giordano F, Giroletti M, Glanzman T, Godfrey G, Gomez-Vargas GA, Granot J, Green D, Grenier IA, Grondin MH, Grove JE, Guillemot L, Guiriec S, Hadasch D, Harding AK, Hays E, Hewitt JW, Hill AB, Horan D, Jogler T, Johannesson G, Kamae T, Kensei S, Kocevski D, Kuss M, La Mura G, Larsson S, Latronico L, Lemoine-Goumard M, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Madejski GM, Magill J, Maldera S, Manfreda A, Marelli M, Mayer M, Mazziotta MN, McEnery JE, Meyer M, Michelson PF, Mirabal N, Mizuno T, Moiseev AA, Monzani ME, Moretti E, Morselli A, Moskalenko IV, Murgia S, Negro M, Nuss E, Ohsugi T, Omodei N, Orienti M, Orlando E, Ormes JF, Paneque D, Perkins JS, Pesce-Rollins M, Piron F, Pivato G, Porter TA, Racusin JL, Raino S, Rando R, Razzaque S, Reimer A, Reimer O, Reposeur T, Ritz S, Rochester LS, Romani RW, Parkinson PMS, Sgro C, Simone D, Siskind EJ, Smith DA, Spada F, Spandre G, Spinelli P, Suson DJ, Tajima H, Thayer JG, Thayer JB, Thompson DJ, Tibaldo L, Torres DF, Troja E, Uchiyama Y, Venters TM, Vianello G, Wood KS, Wood M, Zaharijas G, Zhu S, Zimmer S, Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome]-Institut Pasteur, Fondation Cenci Bolognetti - Istituto Pasteur Italia, Fondazione Cenci Bolognetti, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Università degli Studi di Roma 'La Sapienza' [Rome]-Réseau International des Instituts Pasteur (RIIP)-Institut Pasteur, Fondation Cenci Bolognetti - Istituto Pasteur Italia, Fondazione Cenci Bolognetti, and École normale supérieure - Paris (ENS Paris)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École des Ponts ParisTech (ENPC)-École polytechnique (X)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Subjects: gamma-ray burst: general, gamma-rays: general, gravitational waves, methods: observational, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, gamma-ray burst: general, observational [methods], FOS: Physical sciences, Astrophysics, general [gamma-ray burst], 01 natural sciences, law.invention, Telescope, ravitational waves, law, Observatory, gamma-ray burst: general – gamma-rays: general – gravitational waves – methods: observational, 0103 physical sciences, gravitational wave, 010303 astronomy & astrophysics, media_common, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, 010308 nuclear & particles physics, Gravitational wave, gamma-rays: general, gravitational waves, methods: observational, Astronomy and Astrophysics, Space and Planetary Science, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, gamma rays: general, Astronomy and Astrophysic, Gamma-ray burst: general, LIGO, Black hole, Interferometry, Sky, [SDU]Sciences of the Universe [physics], ddc:520, Astrophysics - High Energy Astrophysical Phenomena, general [gamma-rays], Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal / 2 823(1), L2(2016). doi:10.3847/2041-8205/823/1/L2, The Fermi Large Area Telescope (LAT) has an instantaneous field of view (FoV) covering $\sim 1/5$ of the sky and it completes a survey of the entire sky in high-energy gamma-rays every 3 hr. It enables searches for transient phenomena over timescales from milliseconds to years. Among these phenomena could be electromagnetic counterparts to gravitational wave (GW) sources. In this paper, we present a detailed study of the LAT observations relevant to Laser Interferometer Gravitational-wave Observatory (LIGO) event GW150914, which is the first direct detection of gravitational waves and has been interpreted as being due to the coalescence of two stellar-mass black holes. The localization region for GW150914 was outside the LAT FoV at the time of the GW signal. However, as part of routine survey observations, the LAT observed the entire LIGO localization region within ~70 minutes of the trigger and thus enabled a comprehensive search for a γ-ray counterpart to GW150914. The study of the LAT data presented here did not find any potential counterparts to GW150914, but it did provide limits on the presence of a transient counterpart above 100 MeV on timescales of hours to days over the entire GW150914 localization region., Published by Institute of Physics Publ., London
Published: 2016
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28. Development of the Model of Galactic Interstellar Emission for Standard Point-Source Analysis of Fermi Large Area Telescope Data

Author: Xian Hou, S. Rainò, Soebur Razzaque, J. F. Ormes, Matthew Wood, Katsuhiro Hayashi, E. D. Bloom, Gabrijela Zaharijas, Michael Werner, D. Horan, Hiromitsu Takahashi, F. Spada, D. Hadasch, Andrea Albert, T. Kamae, Frederic Piron, Dario Gasparrini, R. Desiante, S. Cutini, S. J. Fegan, Hiroyasu Tajima, Francesco Longo, Jean Ballet, Tsunefumi Mizuno, A. Franckowiak, Miguel A. Sánchez-Conde, Johan Bregeon, L. Latronico, Stefano Ciprini, M. Caragiulo, S. Maldera, Julie McEnery, G. Chiaro, E. Cavazzuti, Q. Remy, T. Jogler, Diego F. Torres, F. Loparco, John W. Hewitt, P. Martin, Eric Charles, M. Kuss, Stefan Funk, D. Landriu, N. Renault, W. B. Focke, Gino Tosti, Gloria Spandre, Olaf Reimer, Gudlaugur Johannesson, Marco Ajello, D. J. Suson, Michael Mayer, Eleonora Troja, Seth Digel, A. Reimer, M. N. Mazziotta, M. Schaal, D. Paneque, Dmitry Malyshev, Liang Li, Guido Barbiellini, P. Fusco, M. Tinivella, Johann Cohen-Tanugi, Nicola Omodei, T. J. Brandt, Francesco Giordano, T. Ohsugi, Elizabeth C. Ferrara, M. Ackermann, S. Buson, R. Claus, G. A. Caliandro, Eric Nuss, L. Di Venere, K. S. Wood, E. Orlando, L. Tibaldo, A. De Angelis, G. Godfrey, Carmelo Sgrò, Riccardo Rando, D. J. Thompson, R. Bonino, F. Gargano, Nestor Mirabal, A. Chekhtman, M. Orienti, J. M. Casandjian, Melissa Pesce-Rollins, C. Cecchi, T. Glanzman, Luca Baldini, Nicola Giglietto, Alice K. Harding, Jingcheng Li, E. J. Siskind, P. A. Caraveo, Persis S. Drell, Giacomo Vianello, F. de Palma, M. N. Lovellette, A. B. Hill, Ronaldo Bellazzini, Janet Conrad, A. Morselli, Stephan Zimmer, I. A. Grenier, M. E. Monzani, J. B. Thayer, Fabio Acero, P. Spinelli, R. A. Cameron, P. Lubrano, Denis Bastieri, Sylvain Guiriec, J. Chiang, Elisabetta Bissaldi, Andrew W. Strong, M. Razzano, Filippo D'Ammando, Alessandro Cuoco, Pascal Bruel, R. Buehler, A. Schulz, Elizabeth Hays, G. Pivato, Peter F. Michelson, Marcello Giroletti, C. Favuzzi, Eugenio Bottacini, Stefan Larsson, Alberto Manfreda, Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-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), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), 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), ITA, Acero, F., Ackermann, M., Ajello, M., Albert, A., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Casandjian, J. M., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Cohen Tanugi, J., Conrad, J., Cuoco, A., Cutini, S., D'Ammando, F., Angelis, A. De, Palma, F. De, Desiante, R., Digel, S. W., Venere, L. Di, Drell, P. S., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Franckowiak, A., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grenier, I. A., Guiriec, S., Hadasch, D., Harding, A. K., Hayashi, K., Hays, E., Hewitt, J. W., Hill, A. B., Horan, D., Hou, X., Jogler, T., Jóhannesson, G., Kamae, T., Kuss, M., Landriu, D., Larsson, S., Latronico, L., Li, J., Li, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Martin, P., Mayer, M., Mazziotta, M. N., Mcenery, J. E., Michelson, P. F., Mirabal, N., Mizuno, T., Monzani, M. E., Morselli, A., Nuss, E., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Pesce Rollins, M., Piron, F., Pivato, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Remy, Q., Renault, N., Sánchez Conde, M., Schaal, M., Schulz, A., Sgrò, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Strong, A. W., Suson, D. J., Tajima, H., Takahashi, H., Thayer, J. B., Thompson, D. J., Tibaldo, L., Tinivella, M., Torres, D. F., Tosti, G., Troja, E., Vianello, G., Werner, M., Wood, K. S., Wood, M., Zaharijas, G., Zimmer, S., Acero F, Ackermann M, Ajello M, Albert A, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, Bloom ED, Bonino R, Bottacini E, Brandt TJ, Bregeon J, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caragiulo M, Caraveo PA, Casandjian JM, Cavazzuti E, Cecchi C, Charles E, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Claus R, Cohen-Tanugi J, Conrad J, Cuoco A, Cutini S, DAmmando F, de Angelis A, de Palma F, Desiante R, Digel SW, Di Venere L, Drell PS, Favuzzi C, Fegan SJ, Ferrara EC, Focke WB, Franckowiak A, Funk S, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Grenier IA, Guiriec S, Hadasch D, Harding AK, Hayashi K, Hays E, Hewitt JW, Hill AB, Horan D, Hou X, Jogler T, Johannesson G, Kamae T, Kuss M, Landriu D, Larsson S, Latronico L, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Maldera S, Malyshev D, Manfreda A, Martin P, Mayer M, Mazziotta MN, McEnery JE, Michelson PF, Mirabal N, Mizuno T, Monzani ME, Morselli A, Nuss E, Ohsugi T, Omodei N, Orienti M, Orlando E, Ormes JF, Paneque D, Pesce-Rollins M, Piron F, Pivato G, Raino S, Rando R, Razzano M, Razzaque S, Reimer A, Reimer O, Remy Q, Renault N, Sanchez-Conde M, Schaal M, Schulz A, Sgro C, Siskind EJ, Spada F, Spandre G, Spinelli P, Strong AW, Suson DJ, Tajima H, Takahashi H, Thayer JB, Thompson DJ, Tibaldo L, Tinivella M, Torres DF, Tosti G, Troja E, Vianello G, Werner M, Wood KS, Wood M, Zaharijas G, and Zimmer S
Subjects: gamma rays: diffuse background – gamma rays: general – gamma rays: ISM, Astrophysics, 01 natural sciences, law.invention, Spitzer Space Telescope, law, emission, 010303 astronomy & astrophysics, gamma rays: diffuse background, gamma rays: general, gamma rays: ISM, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, p: spectrum, Galactic Center, photon, nucleon, Gamma rays: diffuse background, Space and Planetary Science, Astronomy and Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Compton scattering, Point source, Astrophysics::High Energy Astrophysical Phenomena, galaxy: model, FOS: Physical sciences, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, p: density, GLAST, emission: model, Telescope, ISM [gamma rays], diffuse background [gamma rays], gas, 0103 physical sciences, structure, Astrophysics::Galaxy Astrophysics, 010308 nuclear & particles physics, bubble, Astronomy and Astrophysic, Galaxy, Interstellar medium, gamma ray, p: cosmic radiation, ddc:520, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal / Supplement series 223(2), 26(2016). doi:10.3847/0067-0049/223/2/26, Most of the celestial γ rays detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope originate from the interstellar medium when energetic cosmic rays interact with interstellar nucleons and photons. Conventional point-source and extended-source studies rely on the modeling of this diffuse emission for accurate characterization. Here, we describe the development of the Galactic Interstellar Emission Model (GIEM), which is the standard adopted by the LAT Collaboration and is publicly available. This model is based on a linear combination of maps for interstellar gas column density in Galactocentric annuli and for the inverse-Compton emission produced in the Galaxy. In the GIEM, we also include large-scale structures like Loop I and the Fermi bubbles. The measured gas emissivity spectra confirm that the cosmic-ray proton density decreases with Galactocentric distance beyond 5 kpc from the Galactic Center. The measurements also suggest a softening of the proton spectrum with Galactocentric distance. We observe that the Fermi bubbles have boundaries with a shape similar to a catenary at latitudes below 20° and we observe an enhanced emission toward their base extending in the north and south Galactic directions and located within ~4° of the Galactic Center., Published by Univ. of Chicago Press11033, Chicago, Ill. [u.a.]
Published: 2016
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29. The black-hole candidate XTE J1817-330 as seen by XMM-Newton and INTEGRAL

Author: Jochen Greiner, Gloria Sala, Frank Haberl, and Eugenio Bottacini
Subjects: Physics, Black hole, Range (particle radiation), Photon, Absorption spectroscopy, Space and Planetary Science, Doubly ionized oxygen, Astronomy, Astronomy and Astrophysics, Stellar black hole, Astrophysics, Power law, Cosmology
Abstract: The new black hole candidate XTE J1817-330, discovered on 26 January 2006 with RXTE, was observed with XMM-Newton and INTEGRAL in February and March 2006, respectively. The X-ray spectrum is dominated by the thermal emission of the accretion disk in the soft band, with a low absorption column density (N H=1.77(±0.01)×1021 cm−2) and a maximum disk temperature kT max=0.68(±0.01) keV, plus a power law component, with the photon index decreasing from 2.66±0.02 to 1.98±0.07 between the two observations. Several interstellar absorption lines are detected in the X-ray spectrum, corresponding to O I, O II, O III, O VII and Fe XXIV. We constrain the distance to the system to be in the range 1–5 kpc.
Published: 2007
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30. Fermi-LAT Observations of the 2014 May-July outburst from 3C 454.3

Author: Eugenio Bottacini, R. J. Britto, Benoit Lott, S. Buson, and Soebur Razzaque
Subjects: Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Spectral index, 010308 nuclear & particles physics, galaxies: active, gamma rays: galaxies, quasars: individual (3C 454.3), Astronomy and Astrophysics, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, Flux, FOS: Physical sciences, Quasar, Astrophysics, 01 natural sciences, Power law, law.invention, law, 0103 physical sciences, Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics, Fermi Gamma-ray Space Telescope, Flare
Abstract: A prominent outburst of the flat spectrum radio quasar 3C~454.3 was observed in 2014 June with the \emph{Fermi} Large Area Telescope. This outburst was characterized by a three-stage light-curve pattern---plateau, flare and post-flare---that occurred from 2014 May to July, in a similar pattern as observed during the exceptional outburst in 2010 November. The highest flux of the outburst reported in this paper occurred during 2014 June 7--29, showing a multiple-peak structure in the light-curves. The average flux in these 22 days was found to be $F[E > 100~\mathrm{MeV}] = (7.2 \pm 0.2) \times 10^{-6}$~ph~cm$^{-2}$~s$^{-1}$, with a spectral index, for a simple power law, of $\Gamma = 2.04 \pm 0.01$. That made this outburst the first $\gamma$-ray high state of 3C~454.3 ever to be detected by \emph{Fermi} with such a hard spectrum over several days. The highest flux was recorded on 2014 June 15, in a 3 hr bin, at MJD 56823.5625, at a level of $F[E > 100~\mathrm{MeV}] = (17.6 \pm 1.9) \times 10^{-6}$~ph~cm$^{-2}$~s$^{-1}$. The rise time of one of the short subflares was found to be $T_r= 1200 \pm 700$~s at MJD = 56827, when the flux increased from 4 to 12 $\times 10^{-6}$~ph~cm$^{-2}$~s$^{-1}$. Several photons above 20 GeV were collected during this outburst, including one at 45 GeV on MJD 56827, constraining the $\gamma$-ray emission region to be located close to the outer boundary of the broad-line region, leading to fast flux variability., Comment: Accepted for publication in {\sc the astrophysical journal}: 2016 July 12}; 15 pages, 7 figures, 6 tables
Published: 2015

31. Search for Early Gamma-ray Production in Supernovae Located in a Dense Circumstellar Medium with the Fermi LAT

Author: S. Cutini, M. Razzano, Filippo D'Ammando, J. Li, A. Morselli, P. Spinelli, J. Lashner, Roger Blandford, John W. Hewitt, F. Loparco, Eleonora Troja, P. Fusco, S. Rainò, Matthew Wood, Olaf Reimer, T. J. Brandt, Dario Gasparrini, Jean Ballet, F. Gargano, Avishay Gal-Yam, Katsuhiro Hayashi, M. Ackermann, Stefan Larsson, A. Reimer, C. Cecchi, Peter Nugent, M. N. Lovellette, J. F. Ormes, D. Malyshev, Stefano Ciprini, Denis Bastieri, A. B. Hill, Alice K. Harding, Eran O. Ofek, F. Spada, Francesco Longo, E. Cavazzuti, K. S. Wood, Eric Charles, M. Orienti, Gudlaugur Johannesson, Michael Werner, Hiromitsu Takahashi, D. J. Suson, D. Horan, Sylvain Guiriec, T. Glanzman, M. E. Monzani, S. J. Fegan, Frederic Piron, Iair Arcavi, Nicola Giglietto, A. Franckowiak, Kohta Murase, M. N. Mazziotta, Liang Li, Guido Barbiellini, T. Jogler, R. Claus, Gloria Spandre, J. B. Thayer, Tsunefumi Mizuno, T. Ohsugi, Stefan Funk, J. Chiang, M. Caragiulo, Michael Mayer, G. Chiaro, Carmelo Sgrò, Riccardo Rando, R. Desiante, L. Latronico, E. J. Siskind, R. Bonino, P. A. Caraveo, J. E. Grove, Elisabetta Bissaldi, Persis S. Drell, L. Tibaldo, Diego F. Torres, Elena Orlando, Daniel Kocevski, D. Paneque, L. Di Venere, A. Chekhtman, S. Buson, Francesco Giordano, M. Kuss, G. Pivato, C. Favuzzi, Eugenio Bottacini, Johann Cohen-Tanugi, Johan Bregeon, Julie McEnery, G. A. Caliandro, Pascal Bruel, R. Buehler, A. Schulz, Peter F. Michelson, Marcello Giroletti, R. A. Cameron, G. Godfrey, P. Lubrano, F. de Palma, Melissa Pesce-Rollins, I. A. Grenier, Eric Nuss, Luca Baldini, Ronaldo Bellazzini, A. De Angelis, Giacomo Vianello, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / 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 Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), Fermi-LAT, Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), ITA, Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Ackermann M, Arcavi I, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, Blandford RD, Bonino R, Bottacini E, Brandt TJ, Bregeon J, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caragiulo M, Caraveo PA, Cavazzuti E, Cecchi C, Charles E, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Claus R, Cohen-Tanugi J, Cutini S, DAmmando F, de Angelis A, de Palma F, Desiante R, Di Venere L, Drell PS, Favuzzi C, Fegan SJ, Franckowiak A, Funk S, Fusco P, Gal-Yam A, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Grenier IA, Grove JE, Guiriec S, Harding AK, Hayashi K, Hewitt JW, Hill AB, Horan D, Jogler T, Johannesson G, Kocevski D, Kuss M, Larsson S, Lashner J, Latronico L, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Malyshev D, Mayer M, Mazziotta MN, McEnery JE, Michelson PF, Mizuno T, Monzani ME, Morselli A, Murase K, Nugent P, Nuss E, Ofek E, Ohsugi T, Orienti M, Orlando E, Ormes JF, Paneque D, Pesce-Rollins M, Piron F, Pivato G, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Schulz A, Sgro C, Siskind EJ, Spada F, Spandre G, Spinelli P, Suson DJ, Takahashi H, Thayer JB, Tibaldo L, Torres DF, Troja E, Vianello G, Werner M, Wood KS, Wood M, Ackermann, M., Arcavi, I., Baldini, L., Ballet, J., BARBIELLINI AMIDEI, Guido, Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Cohen Tanugi, J., Cutini, S., D’Ammando, F., Angelis, A. de, Palma, F. de, Desiante, R., Venere, L. Di, Drell, P. S., Favuzzi, C., Fegan, S. J., Franckowiak, A., Funk, S., Fusco, P., Gal Yam, A., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grenier, I. A., Grove, J. E., Guiriec, S., Harding, A. K., Hayashi, K., Hewitt, J. W., Hill, A. B., Horan, D., Jogler, T., Jóhannesson, G., Kocevski, D., Kuss, M., Larsson, S., Lashner, J., Latronico, L., Li, J., Li, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Malyshev, D., Mayer, M., Mazziotta, M. N., Mcenery, J. E., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Murase, K., Nugent, P., Nuss, E., Ofek, E., Ohsugi, T., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Pesce Rollins, M., Piron, F., Pivato, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Schulz, A., Sgrò, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Takahashi, H., Thayer, J. B., Tibaldo, L., Torres, D. F., Troja, E., Vianello, G., Werner, M., Wood, K. S., and Wood, M.
Subjects: Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 7. Clean energy, Luminosity, cosmic rays, supernovae: general, 0103 physical sciences, Binary star, data analysis [methods], Fysik, Cosmic rays, gamma rays: general, methods: data analysis, 010303 astronomy & astrophysics, cosmic ray, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, general, methods: data analysis, supernovae: general [cosmic rays, gamma rays], 010308 nuclear & particles physics, Gamma ray, Astronomy and Astrophysics, Space and Planetary Science, Stars, Supernova, cosmic rays, gamma rays: general, methods: data analysis, supernovae: general, Physical Sciences, ddc:520, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], methods: data analysi, general [gamma rays], general [supernovae], Fermi Gamma-ray Space Telescope
Abstract: 著者人数: 111名, Accepted: 2015-06-02, 資料番号: SA1150134000
Published: 2015
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32. SEARCH for EXTENDED GAMMA-RAY EMISSION from the VIRGO GALAXY CLUSTER with FERMI-LAT

Author: R. Buehler, Peter F. Michelson, Marcello Giroletti, Carmelo Sgrò, Riccardo Rando, A. Chekhtman, P. Lubrano, Hiromitsu Takahashi, E. Nuss, David Paneque, M. Kuss, Johan Bregeon, F. Spada, R. Caputo, D. Horan, M. Orienti, A. Morselli, Stefan Larsson, D. Malyshev, Dario Gasparrini, E. Orlando, Andrea Albert, Johann Cohen-Tanugi, Miguel A. Sánchez-Conde, Stefano Ciprini, J. M. Casandjian, Marco Ajello, Francesco Longo, Tesla E. Jeltema, J. B. Thayer, M. N. Mazziotta, L. Di Venere, E. Troja, Seth Digel, Igor V. Moskalenko, Hiroyasu Tajima, Olaf Reimer, Liang Li, Jan Conrad, G. A. Gomez-Vargas, S. Buson, R. Bonino, F. Loparco, Guido Barbiellini, M. Gustafsson, M. Mayer, Elliott D. Bloom, S. Murgia, F. Gargano, Luca Latronico, G. A. Caliandro, A. Franckowiak, I. A. Grenier, M. Caragiulo, S. Maldera, Claudia Cecchi, Ronaldo Bellazzini, S. Rainò, Diego F. Torres, C. Favuzzi, Tsunefumi Mizuno, Eric Charles, J. F. Ormes, E. Cavazzuti, J. Li, K. S. Wood, R. A. Cameron, G. Chiaro, Stefan Funk, T. Ohsugi, Gloria Spandre, Yasushi Fukazawa, T. J. Brandt, A. S. Johnson, S. Cutini, P. Fusco, R. Desiante, Gabrijela Zaharijas, A. De Angelis, John W. Hewitt, G. Tosti, E. J. Siskind, G. Godfrey, T. Jogler, Melissa Pesce-Rollins, Matthew Wood, P. Bruel, Giacomo Vianello, Markus Ackermann, F. de Palma, A. B. Hill, Vahé Petrosian, Luca Baldini, Sylvain Guiriec, W. B. Focke, P. Spinelli, Francesco Giordano, A. Reimer, Eugenio Bottacini, Alberto Manfreda, Elisabetta Bissaldi, G. Pivato, T. Glanzman, Denis Bastieri, T. A. Porter, M. Razzano, Filippo D'Ammando, Keith Bechtol, André Schulz, W. B. Atwood, J. S. Perkins, Nicola Giglietto, M. N. Lovellette, P. A. Caraveo, Persis S. Drell, Stephan Zimmer, M. E. Monzani, Emma Storm, S. J. Fegan, F. Piron, Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Fermi-LAT, Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-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)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Ackermann M, Ajello M, Albert A, Atwood WB, Baldini L, Barbiellini G, Bastieri D, Bechtol K, Bellazzini R, Bissaldi E, Bloom ED, Bonino R, Bottacini E, Brandt TJ, Bregeon J, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caputo R, Caragiulo M, Caraveo PA, Casandjian JM, Cavazzuti E, Cecchi C, Charles E, Chekhtman A, Chiaro G, Ciprini S, Cohen-Tanugi J, Conrad J, Cutini S, DAmmando F, de Angelis A, De Palma F, Desiante R, Digel SW, Di Venere L, Drell PS, Favuzzi C, Fegan SJ, Focke WB, Franckowiak A, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Gomez-Vargas GA, Grenier A, Guiriec S, Gustafsson M, Hewitt JW, Hill AB, Horan D, Jeltema TE, Jogler T, Johnson AS, Kuss M, Larsson S, Latronico L, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Maldera S, Malyshev D, Manfreda A, Mayer M, Mazziotta MN, Michelson PF, Mizuno T, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nuss E, Ohsugi T, Orienti M, Orlando E, Ormes JF, Paneque D, Perkins JS, Pesce-Rollins M, Petrosian V, Piron F, Pivato G, Porter TA, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Sanchez-Conde M, Schulz A, Sgro C, Siskind EJ, Spada F, Spandre G, Spinelli P, Storm E, Tajima H, Takahashi H, Thayer JB, Torres DF, Tosti G, Troja E, Vianello G, Wood KS, Wood M, Zaharijas G, Zimmer S, Pinzke A, ITA, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Ackermann, M., Ajello, M., Albert, A., Atwood, W. B., Baldini, L., Barbiellini, G., Bastieri, D., Bechtol, K., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Casandjian, J. M., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Chiaro, G., Ciprini, S., Cohen Tanugi, J., Conrad, J., Cutini, S., D'Ammando, F., Angelis, A. De, Palma, F. De, Desiante, R., Digel, S. W., Venere, L. Di, Drell, P. S., Favuzzi, C., Fegan, S. J., Focke, W. B., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Gomez Vargas, G. A., Grenier, I. A., Guiriec, S., Gustafsson, M., Hewitt, J. W., Hill, A. B., Horan, D., Jeltema, T. E., Jogler, T., Johnson, A. S., Kuss, M., Larsson, S., Latronico, L., Li, J., Li, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Nuss, E., Ohsugi, T., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Perkins, J. S., Pesce Rollins, M., Petrosian, V., Piron, F., Pivato, G., Porter, T. A., Rainó, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Sánchez Conde, M., Schulz, A., Sgró, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Storm, E., Tajima, H., Takahashi, H., Thayer, J. B., Torres, D. F., Tosti, G., Troja, E., Vianello, G., Wood, K. S., Wood, M., Zaharijas, G., and Zimmer, S.
Subjects: galaxies: clusters: individual, Nuclear and High Energy Physics, galaxies: clusters: individual (Virgo), Astrophysics::High Energy Astrophysical Phenomena, Dark matter, gamma-rays: galaxies: cluster, background: model, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, cosmic radiation: interaction, GLAST, cross section: annihilation, emission: model, Galactic halo, pressure, High Energy Physics - Phenomenology (hep-ph), galaxy: halo, dark matter: halo, galaxies: cluster [gamma-rays], gamma-rays: galaxies: clusters, gamma-rays: general, Galaxy cluster, Astrophysics::Galaxy Astrophysics, dark matter: angular distribution, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Annihilation, clusters: individual (Virgo) [galaxies], flux: enhancement, Gamma ray, Astronomy and Astrophysics, dark matter: annihilation, star: model, Dark matter halo, High Energy Physics - Phenomenology, VIRGO, gamma ray: emission, Space and Planetary Science, ddc:520, galaxy: cluster, Halo, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], general [gamma-rays], Fermi Gamma-ray Space Telescope
Abstract: Galaxy clusters are one of the prime sites to search for dark matter (DM) annihilation signals. Depending on the substructure of the DM halo of a galaxy cluster and the cross sections for DM annihilation channels, these signals might be detectable by the latest generation of $\gamma$-ray telescopes. Here we use three years of Fermi Large Area Telescope (LAT) data, which are the most suitable for searching for very extended emission in the vicinity of nearby Virgo galaxy cluster. Our analysis reveals statistically significant extended emission which can be well characterized by a uniformly emitting disk profile with a radius of 3\deg that moreover is offset from the cluster center. We demonstrate that the significance of this extended emission strongly depends on the adopted interstellar emission model (IEM) and is most likely an artifact of our incomplete description of the IEM in this region. We also search for and find new point source candidates in the region. We then derive conservative upper limits on the velocity-averaged DM pair annihilation cross section from Virgo. We take into account the potential $\gamma$-ray flux enhancement due to DM sub-halos and its complex morphology as a merging cluster. For DM annihilating into $b\overline{b}$, assuming a conservative sub-halo model setup, we find limits that are between 1 and 1.5 orders of magnitude above the expectation from the thermal cross section for $m_{\mathrm{DM}}\lesssim100\,\mathrm{GeV}$. In a more optimistic scenario, we exclude $\langle \sigma v \rangle\sim3\times10^{-26}\,\mathrm{cm^{3}\,s^{-1}}$ for $m_{\mathrm{DM}}\lesssim40\,\mathrm{GeV}$ for the same channel. Finally, we derive upper limits on the $\gamma$-ray-flux produced by hadronic cosmic-ray interactions in the inter cluster medium. We find that the volume-averaged cosmic-ray-to-thermal pressure ratio is less than $\sim6\%$., Comment: 15 pages, 11 figures, 4 tables, accepted for publication in ApJ; corresponding authors: T. Jogler, S. Zimmer & A. Pinzke
Published: 2015
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33. PSR J1906+0722: An Elusive Gamma-ray Pulsar

Author: R. Desiante, A. De Angelis, Eric Charles, D. J. Suson, C. Cecchi, Carmelo Sgrò, Riccardo Rando, Pablo Torne, Giacomo Vianello, R. Bonino, M. Orienti, Johann Cohen-Tanugi, S. Cutini, A. S. Johnson, Denis Bastieri, P. Fusco, Xian Hou, Alice K. Harding, F. de Palma, Francesco Longo, R. Claus, Michael Kramer, C. Aulbert, Ronaldo Bellazzini, F. Krauss, F. Loparco, T. Glanzman, A. Morselli, A. Franckowiak, Dario Gasparrini, David Champion, T. Jogler, H. Fehrmann, S. Murgia, G. A. Caliandro, Hiromitsu Takahashi, J. Li, Frederic Piron, Sylvain Guiriec, Martino Marelli, B. Machenschalk, Eleonora Troja, M. Yassine, M. Caragiulo, P. M. Saz Parkinson, J. Chiang, A. B. Hill, Michael Mayer, M. Schaal, S. Rainò, Tsunefumi Mizuno, A. Reimer, P. Spinelli, M. Kuss, W. B. Focke, O. Bock, G. Chiaro, Jean Ballet, A. Cuéllar, J. E. Grove, F. Spada, Holger J. Pletsch, Stefano Ciprini, T. J. Brandt, H. Laffon, John W. Hewitt, Elizabeth C. Ferrara, L. Latronico, Nicola Giglietto, Francesco Giordano, Benjamin William Allen, M. E. Monzani, Diego F. Torres, G. Pivato, Matthew Wood, Elena Orlando, J. B. Thayer, C. Favuzzi, E. J. Siskind, Pascal Bruel, M. Razzano, Gloria Spandre, P. A. Caraveo, A. Schulz, Filippo D'Ammando, Eugenio Bottacini, Persis S. Drell, Elizabeth Hays, Alberto Manfreda, Peter F. Michelson, M. N. Mazziotta, Elisabetta Bissaldi, L. Tibaldo, P. Lubrano, D. Paneque, S. Buson, F. Gargano, Gudlaugur Johannesson, H.-B. Eggenstein, J. Wu, Lucas Guillemot, Liang Li, Guido Barbiellini, R. A. Cameron, Eric Nuss, I. A. Grenier, T. Ohsugi, M. Ackermann, G. Godfrey, Gino Tosti, K. S. Wood, Igor V. Moskalenko, D. Horan, Johan Bregeon, C. J. Clark, Stefan Larsson, M. N. Lovellette, Melissa Pesce-Rollins, Luca Baldini, A. Chekhtman, Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), 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), Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Clark, C. J., Pletsch, H. J., Wu, J., Guillemot, L., Ackermann, M., Allen, B., De Angelis, A., Aulbert, C., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Bock, O., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buson, S., Caliandro, G. A., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cecchi, C., Champion, D. J., Charles, E., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Cohen Tanugi, J., Cuéllar, A., Cutini, S., D'Ammando, F., Desiante, R., Drell, P. S., Eggenstein, H. B., Favuzzi, C., Fehrmann, H., Ferrara, E. C., Focke, W. B., Franckowiak, A., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Glanzman, T., Godfrey, G., Grenier, I. A., Grove, J. E., Guiriec, S., Harding, A. K., Hays, E., Hewitt, J. W., Hill, A. B., Horan, D., Hou, X., Jogler, T., Johnson, A. S., Jóhannesson, G., Kramer, M., Krauss, F., Kuss, M., Laffon, H., Larsson, S., Latronico, L., Li, J., Li, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Machenschalk, B., Manfreda, A., Marelli, M., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Nuss, E., Ohsugi, T., Orienti, M., Orlando, E., Palma, F. De, Paneque, D., Pesce Rollins, M., Piron, F., Pivato, G., Rainò, S., Rando, R., Razzano, M., Reimer, A., Parkinson, P. M. Saz, Schaal, M., Schulz, A., Sgrò, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Takahashi, H., Thayer, J. B., Tibaldo, L., Torne, P., Torres, D. F., Tosti, G., Troja, E., Vianello, G., Wood, K. S., Wood, M., Yassine, Manal, 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, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), 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), 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 Paris sciences et lettres (PSL)-Centre National d’Études Spatiales [Paris] (CNES), 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), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Clark CJ, Pletsch HJ, Wu J, Guillemot L, Ackermann M, Allen B, de Angelis A, Aulbert C, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, Bock O, Bonino R, Bottacini E, Brandt TJ, Bregeon J, Bruel P, Buson S, Caliandro GA, Cameron RA, Caragiulo M, Caraveo PA, Cecchi C, Champion DJ, Charles E, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Claus R, Cohen-Tanugi J, Cuellar A, Cutini S, DAmmando F, Desiante R, Drell PS, Eggenstein HB, Favuzzi C, Fehrmann H, Ferrara EC, Focke WB, Franckowiak A, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Glanzman T, Godfrey G, Grenier IA, Grove JE, Guiriec S, Harding AK, Hays E, Hewitt JW, Hill AB, Horan D, Hou X, Jogler T, Johnson AS, Johannesson G, Kramer M, Krauss F, Kuss M, Laffon H, Larsson S, Latronico L, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Machenschalk B, Manfreda A, Marelli M, Mayer M, Mazziotta MN, Michelson PF, Mizuno T, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nuss E, Ohsugi T, Orienti M, Orlando E, de Palma F, Paneque D, Pesce-Rollins M, Piron F, Pivato G, Raino S, Rando R, Razzano M, Reimer A, Parkinson PMS, Schaal M, Schulz A, Sgro C, Siskind EJ, Spada F, Spandre G, Spinelli P, Suson DJ, Takahashi H, Thayer JB, Tibaldo L, Torne P, Torres DF, Tosti G, Troja E, Vianello G, Wood KS, Wood M, and Yassine M
Subjects: gamma rays: stars, pulsars: individual: PSR J1906+0722, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Flux, Astrophysics, star [gamma rays], law.invention, Gamma rays: stars, Telescope, Pulsar, law, individual (PSR J1906+0722) [pulsars], Supernova remnant, Astrophysics::Galaxy Astrophysics, Spin-½, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, [PHYS]Physics [physics], Molecular cloud, Gamma ray, Astronomy and Astrophysics, Space and Planetary Science, ddc:520, pulsars: individual (PSR J1906+0722), Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], gamma rays: stars, Fermi Gamma-ray Space Telescope
Abstract: We report the discovery of PSR J1906+0722, a gamma-ray pulsar detected as part of a blind survey of unidentified Fermi Large Area Telescope (LAT) sources being carried out on the volunteer distributed computing system, Einstein@Home. This newly discovered pulsar previously appeared as the most significant remaining unidentified gamma-ray source without a known association in the second Fermi-LAT source catalog (2FGL) and was among the top ten most significant unassociated sources in the recent third catalog (3FGL). PSR J1906+0722 is a young, energetic, isolated pulsar, with a spin frequency of $8.9$ Hz, a characteristic age of $49$ kyr, and spin-down power $1.0 \times 10^{36}$ erg s$^{-1}$. In 2009 August it suffered one of the largest glitches detected from a gamma-ray pulsar ($\Delta f / f \approx 4.5\times10^{-6}$). Remaining undetected in dedicated radio follow-up observations, the pulsar is likely radio-quiet. An off-pulse analysis of the gamma-ray flux from the location of PSR J1906+0722 revealed the presence of an additional nearby source, which may be emission from the interaction between a neighboring supernova remnant and a molecular cloud. We discuss possible effects which may have hindered the detection of PSR J1906+0722 in previous searches and describe the methods by which these effects were mitigated in this survey. We also demonstrate the use of advanced timing methods for estimating the positional, spin and glitch parameters of difficult-to-time pulsars such as this., Comment: 7 pages, 4 figures, accepted for publication in Astrophysical Journal Letters
Published: 2015
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34. An extreme gravitationally redshifted iron line at 4.8 keV in Mrk 876

Author: Elena Orlando, Marco Ajello, Igor V. Moskalenko, Massimo Persic, Eugenio Bottacini, and Jochen Greiner
Subjects: Accretion, Active galactic nucleus, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Spectral line, law.invention, Gravitation, law, Galaxies: Individual (Mrk 876), Astrophysics::Galaxy Astrophysics, Line (formation), Accretion, accretion disks, Galaxies: Active, Line: Formation, Line: Identification, X-rays: Galaxies, Astronomy and Astrophysics, Space and Planetary Science, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Supermassive black hole, accretion disks, Redshift, Astrophysics - High Energy Astrophysical Phenomena, Flare
Abstract: X-ray spectral lines at unforeseen energies are important because they can shed light on the extreme physical conditions of the environment around the supermassive black holes of active galactic nuclei (AGN). Mrk 876 displays such a line at 4.8 keV rest-frame energy. A possible interpretation of its origin can be found in the hotspot scenario. In this scenario the primary radiation from a flare in the hot corona of an AGN illuminates a limited portion of the accretion disk that emits by fluorescence. In this context the line can represent an extreme gravitationally redshifted Fe line originating on the accretion disk below 6 gravitational radii from a rotating supermassive black hole. The correct estimate of the line significance requires a dedicated approach. Based on an existing rigorous approach, we have performed extensive Monte Carlo simulations. We determine that the line is a real feature at ~99 confidence level., Comment: ApJL accepted
Published: 2014
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35. ERRATUM: 'FERMI LARGE AREA TELESCOPE STUDY OF COSMIC-RAYS AND THE INTERSTELLAR MEDIUM IN NEARBY MOLECULAR CLOUDS' (2012, ApJ, 755, 22)

Author: P. Lubrano, Denis Bastieri, Hartmut Sadrozinski, Sho Nishino, J. Lande, Sylvain Guiriec, Charles D. Dermer, F. Gargano, Rodrigo Nemmen, A. Chekhtman, D. Horan, Tadayuki Takahashi, M. Tinivella, M. Roth, Francesco Longo, Elizabeth C. Ferrara, W. B. Focke, P. Spinelli, Pierrick Martin, Francesco Giordano, Igor V. Moskalenko, I. A. Grenier, Olaf Reimer, A. Tramacere, E. J. Siskind, Takaaki Tanaka, C. Favuzzi, Stephan Zimmer, J. H. Panetta, Alice Allafort, Gloria Spandre, Markus Ackermann, R. A. Cameron, T. J. Brandt, P. Bruel, S. Murgia, Johann Cohen-Tanugi, T. L. Usher, Hiromitsu Takahashi, F. Piron, T. A. Porter, G. Busetto, Brian L Winer, G. A. Caliandro, J. M. Casandjian, Yasunobu Uchiyama, M. Razzano, Y. Hanabata, Masanori Ohno, A. Morselli, V. Vasileiou, V. Vitale, Stefan Funk, M. E. Monzani, E. Orlando, Zhenwei Yang, G. Pivato, A. A. Moiseev, R. Claus, J. Bregeon, Carmelo Sgrò, Riccardo Rando, E. Nuss, David Paneque, X. Hou, M. Kuss, T. Kamae, T. Ohsugi, Eleonora Troja, Miranda Jackson, Alice K. Harding, A. W. Borgland, A. De Angelis, T. Uehara, L. Falletti, G. Tosti, Eugenio Bottacini, Daniel Sánchez, S. J. Fegan, B. Berenji, M. H. Grondin, Gudlaugur Johannesson, Seth Digel, F. Loparco, Giacomo Vianello, O. Tibolla, W. Mitthumsiri, M. Naumann-Godo, Claudia Cecchi, Jürgen Knödlseder, Justin Vandenbroucke, R. E. Hughes, Eric Charles, Andrew W. Strong, Guido Barbiellini, Alex Drlica-Wagner, K. Hayashi, D. J. Suson, Nicola Giglietto, Keith Bechtol, Shiu-Hang Lee, Marianne Lemoine-Goumard, Dario Gasparrini, A. P. Waite, M. Ozaki, C. Monte, Ronaldo Bellazzini, T. Glanzman, M. N. Lovellette, P. A. Caraveo, Persis S. Drell, P. Wang, Nicola Omodei, D. J. Thompson, M. Brigida, Emanuele Bonamente, T. Sada, Jun Kataoka, S. Germani, K. S. Wood, A. S. Johnson, S. Larsson, Jay P. Norris, James Chiang, Roger Blandford, S. Rainò, Tsunefumi Mizuno, J. E. Grove, Yasushi Fukazawa, P. Fusco, Hiroaki Yamamoto, A. Reimer, J. F. Ormes, J. G. Thayer, J. Mehault, Carla Sbarra, Julie McEnery, Marco Ajello, J. B. Thayer, L. Tibaldo, S. Buson, D. Parent, Yasuo Fukui, Melissa Pesce-Rollins, Luca Baldini, M. Pierbattista, Diego F. Torres, Mn Mazziotta, C. Romoli, E. Do Couto E Silva, Jean Ballet, Stefano Ciprini, Elliott D. Bloom, R. Buehler, Peter F. Michelson, Marcello Giroletti, Hideaki Katagiri, F. D'Ammando, Akira Okumura, Daniela Hadasch, Jan Conrad, G. Godfrey, F. de Palma, and Ryosuke Itoh
Subjects: Physics, Molecular cloud, Astronomy, Astronomy and Astrophysics, Cosmic ray, Astrophysics, law.invention, Interstellar medium, Telescope, Space and Planetary Science, law, ddc:520, Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal 778(1), 82 (2013). doi:10.1088/0004-637X/778/1/82, This is an Erratum for the article 2012 ApJ 755 22, Published by Univ.11032, Chicago, Ill. [u.a.]
Published: 2013
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36. Determination of the Point-spread Function for the Fermi Large Area Telescope from On-orbit Data and Limits on Pair Halos of Active Galactic Nuclei

Author: G. Busetto, Brian L Winer, S. Cutini, A. A. Moiseev, Katsuaki Asano, Francesco Longo, Gudlaugur Johannesson, F. Loparco, E. Do Couto E Silva, W. Mitthumsiri, T. A. Porter, A. P. Waite, T. J. Brandt, Jean Ballet, Stefan Funk, Daniel Sánchez, Claudia Lavalley, Sho Nishino, Alex Drlica-Wagner, Justin Vandenbroucke, T. E. Stephens, A. Morselli, V. Vitale, Jeffrey D. Scargle, P. Fusco, Stefano Ciprini, Igor V. Moskalenko, Matthew Kerr, A. W. Borgland, I. A. Grenier, S. Germani, T. Ohsugi, Eleonora Troja, Miranda Jackson, Nicola Omodei, Guido Barbiellini, S. J. Fegan, Olaf Reimer, Zhenwei Yang, Elliott D. Bloom, G. Godfrey, Kent S. Wood, T. Jogler, Carmelo Sgrò, Riccardo Rando, Soebur Razzaque, Jay P. Norris, M. Razzano, P. Fortin, L. S. Rochester, C. Favuzzi, V. Vasileiou, R. Claus, Matthew Wood, Stephan Zimmer, J. F. Ormes, N. Gehrels, James Chiang, Hiroyasu Tajima, Gino Tosti, Jan Conrad, F. de Palma, R. E. Hughes, E. Wallace, Dario Gasparrini, Patrick Weltevrede, E. Nuss, Paola Grandi, P. Lubrano, Hiromitsu Takahashi, M. Brigida, Sylvain Chaty, A. Chekhtman, David Paneque, Claudia Cecchi, S. Rainò, J. G. Thayer, T. Kamae, Tsunefumi Mizuno, Randall P. Johnson, Rodrigo Nemmen, R. Dubois, E. Orlando, J. M. Casandjian, D. Horan, F. D'Ammando, W. B. Focke, M. Kuss, C. Monte, M. E. Monzani, Gloria Spandre, P. Spinelli, M. N. Mazziotta, Jun Kataoka, Pascal Bruel, J. Mehault, Emanuele Bonamente, R. Buehler, J. E. Grove, S. Larsson, T. L. Usher, Francesco Giordano, D. J. Thompson, Daniela Hadasch, M. Roth, Yasushi Fukazawa, T. H. Burnett, A. S. Johnson, M. Orienti, S. Murgia, O. Tibolla, Benoit Lott, Peter F. Michelson, Marcello Giroletti, Takaaki Tanaka, F. Piron, A. Snyder, Keith Bechtol, Johan Bregeon, Johann Cohen-Tanugi, Alice Allafort, Roberto Mignani, Eric Charles, Julie McEnery, Morihiro Hayashida, E. Hays, Steven Ritz, D. J. Suson, C. C. Cheung, W. McConville, L. C. Reyes, Marco Ajello, J. B. Thayer, M. Naumann-Godo, L. Tibaldo, W. B. Atwood, J. S. Perkins, Nicola Giglietto, F. Gargano, Luca Latronico, G. A. Caliandro, H. Poon, S. Colafrancesco, M. N. Lovellette, P. A. Caraveo, Persis S. Drell, M. Tinivella, Elizabeth C. Ferrara, V. Pelassa, E. J. Siskind, J. H. Panetta, Markus Ackermann, A. N. Cillis, R. A. Cameron, Luca Baldini, M. Pierbattista, Denis Bastieri, A. von Kienlin, C. Romoli, J. Lande, Sylvain Guiriec, A. Reimer, S. Buson, P. M. Saz Parkinson, Suk-Han Lee, Melissa Pesce-Rollins, T. Glanzman, Jürgen Knödlseder, G. Pivato, Eugenio Bottacini, Charles D. Dermer, X. Hou, Giacomo Vianello, Ronaldo Bellazzini, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Commonwealth Scientific and Industrial Research Organisation [Canberra] (CSIRO), Istituto Nazionale di Fisica Nucleare, sezione di Bari (INFN, sezione di Bari), Istituto Nazionale di Fisica Nucleare (INFN), GLAST, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Ackermann, M., Ajello, M., Allafort, A., Asano, K., Atwood, W. B., Baldini, L., Ballet, J., BARBIELLINI AMIDEI, Guido, Bastieri, D., Bechtol, K., Bellazzini, R., Bloom, E. D., Bonamente, E., Borgland, A. W., Bottacini, E., Brandt, T. J., Bregeon, J., Brigida, M., Bruel, P., Buehler, R., Burnett, T. H., Busetto, G., Buson, S., Caliandro, G. A., Cameron, R. A., Caraveo, P. A., Casandjian, J. M., Cecchi, C., Charles, E., Chaty, S., Chekhtman, A., Cheung, C. C., Chiang, J., Cillis, A. N., Ciprini, S., Claus, R., Cohen Tanugi, J., Colafrancesco, S., Conrad, J., Cutini, S., D'Ammando, F., de Palma, F., Dermer, C. D., Silva, E. do Couto e., Drell, P. S., Drlica Wagner, A., Dubois, R., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Fortin, P., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Germani, S., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grandi, P., Grenier, I. A., Grove, J. E., Guiriec, S., Hadasch, D., Hayashida, M., Hays, E., Horan, D., Hou, X., Hughes, R. E., Jackson, M. S., Jogler, T., Jóhannesson, G., Johnson, R. P., Johnson, A. S., Kamae, T., Kataoka, J., Kerr, M., Knödlseder, J., Kuss, M., Lande, J., Larsson, S., Latronico, L., Lavalley, C., Lee, S. H., Longo, Francesco, Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Mazziotta, M. N., Mcconville, W., Mcenery, J. E., Mehault, J., Michelson, P. F., Mignani, R. P., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monte, C., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Naumann Godo, M., Nemmen, R., Nishino, S., Norris, J. P., Nuss, E., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Panetta, J. H., Pelassa, V., Perkins, J. S., Pesce Rollins, M., Pierbattista, M., Piron, F., Pivato, G., Poon, H., Porter, T. A., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Reyes, L. C., Ritz, S., Rochester, L. S., Romoli, C., Roth, M., Sanchez, D. A., Saz Parkinson, P. M., Scargle, J. D., Sgrò, C., Siskind, E. J., Snyder, A., Spandre, G., Spinelli, P., Stephens, T. E., Suson, D. J., Tajima, H., Takahashi, H., Tanaka, T., Thayer, J. G., Thayer, J. B., Thompson, D. J., Tibaldo, L., Tibolla, O., Tinivella, M., Tosti, G., Troja, E., Usher, T. L., Vandenbroucke, J., Vasileiou, V., Vianello, G., Vitale, V., von Kienlin, A., Waite, A. P., Wallace, E., Weltevrede, P., Winer, B. L., Wood, K. S., Wood, M., Yang, Z., Zimmer, S., 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), 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)-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), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Ackermann M, Ajello M, Allafort A, Asano K, Atwood WB, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bechtol K, Bellazzini R, Bloom ED, Bonamente E, Borgland AW, Bottacini E, Brandt TJ, Bregeon J, Brigida M, Bruel P, Buehler R, Burnett TH, Busetto G, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Casandjian JM, Cecchi C, Charles E, Chaty S, Chekhtman A, Cheung CC, Chiang J, Cillis AN, Ciprini S, Claus R, Cohen-Tanugi J, Colafrancesco S, Conrad J, Cutini S, DAmmando F, de Palma F, Dermer CD, Silva EDE, Drell S, Drlica-Wagner A, Dubois R, Favuzzi C, Fegan SJ, Ferrara EC, Focke WB, Fortin P, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Gehrels N, Germani S, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Grandi P, Grenier IA, Grove JE, Guiriec S, Hadasch D, Hayashida M, Hays E, Horan D, Hou X, Hughes RE, Jackson MS, Jogler T, Johannesson G, Johnson RP, Johnson AS, Kamae T, Kataoka J, Kerr M, Knodlseder J, Kuss M, Lande J, Larsson S, Latronico L, Lavalley C, Lee SH, Longo F, Loparco F, Lott B, Lovellette MN, Lubrano P, Mazziotta MN, McConville W, McEnery JE, Mehault J, Michelson PF, Mignani RP, Mitthumsiri W, Mizuno T, Moiseev AA, Monte C, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Naumann-Godo M, Nemmen R, Nishino S, Norris JP, Nuss E, Ohsugi T, Omodei N, Orienti M, Orlando E, Ormes JF, Paneque D, Panetta JH, Pelassa V, Perkins JS, Pesce-Rollins M, Pierbattista M, Piron F, Pivato G, Poon H, Porter TA, Raino S, Rando R, Razzano M, Razzaque S, Reimer A, Reimer O, Reyes LC, Ritz S, Rochester LS, Romoli C, Roth M, Sanchez DA, Parkinson PMS, Scargle JD, Sgro C, Siskind EJ, Snyder A, Spandre G, Spinelli P, Stephens TE, Suson DJ, Tajima H, Takahashi H, Tanaka T, Thayer JG, Thayer JB, Thompson DJ, Tibaldo L, Tibolla O, Tinivella M, Tosti G, Troja E, Usher TL, Vandenbroucke J, Vasileiou V, Vianello G, Vitale V, von Kienlin A, Waite AP, Wallace E, Weltevrede P, Winer BL, Wood KS, Wood M, Yang Z, Zimmer S, National Institute for Nuclear Physics (INFN), and Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Ciencias Físicas, EXTRAGALACTIC MAGNETIC-FIELDS, halo [galaxies], galaxies: halos, Astrophysics, 01 natural sciences, galaxies, [gamma rays], law.invention, Spitzer Space Telescope, law, 1ES 0229+200, SPACE-TELESCOPE, 010303 astronomy & astrophysics, Physics, TEV BLAZARS, detector [instrumentation], [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, detectors, intergalactic medium [instrumentation], VHE GAMMA-RAYS, galaxies: active – galaxies: halos – gamma rays: galaxies – instrumentation: detectors – intergalactic medium, halos [galaxies], active [galaxies], intergalactic medium, Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, Point spread function, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Active galactic nucleus, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, Astrophysics::Cosmology and Extragalactic Astrophysics, Telescope, 0103 physical sciences, gamma rays: galaxies, instrumentation: detectors, galaxie [gamma rays], Blazar, SOURCE CATALOG, Astrophysics::Galaxy Astrophysics, BACKGROUND LIGHT, 010308 nuclear & particles physics, Astronomy, CONSTRAINTS, Astronomy and Astrophysics, Quasar, PULSAR, Galaxy, DISCOVERY, Astronomía, Space and Planetary Science, ddc:520, Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal 765(1), 54 (2013). doi:10.1088/0004-637X/765/1/54, The Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope is a pair-conversion telescope designed to detect photons with energies from ≈20 MeV to >300 GeV. The pre-launch response functions of the LAT were determined through extensive Monte Carlo simulations and beam tests. The point-spread function (PSF) characterizing the angular distribution of reconstructed photons as a function of energy and geometry in the detector is determined here from two years of on-orbit data by examining the distributions of γ rays from pulsars and active galactic nuclei (AGNs). Above 3 GeV, the PSF is found to be broader than the pre-launch PSF. We checked for dependence of the PSF on the class of γ-ray source and observation epoch and found none. We also investigated several possible spatial models for pair-halo emission around BL Lac AGNs. We found no evidence for a component with spatial extension larger than the PSF and set upper limits on the amplitude of halo emission in stacked images of low- and high-redshift BL Lac AGNs and the TeV blazars 1ES0229+200 and 1ES0347–121, Published by Univ.11032, Chicago, Ill. [u.a.]
Published: 2013
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37. PSR J2021+4026 IN THE GAMMA CYGNI REGION: THE FIRST VARIABLE γ-RAY PULSAR SEEN BY THE Fermi LAT

Author: S. Murgia, I. A. Grenier, F. Piron, Alice K. Harding, Seth Digel, T. Jogler, Rodrigo Nemmen, P. Fusco, D. Horan, Matthew Kerr, A. B. Hill, David A. Smith, Hiromitsu Takahashi, Francesco Longo, E. Orlando, Olaf Reimer, Dario Gasparrini, J. B. Thayer, T. A. Porter, Nicola Omodei, C. Favuzzi, R. C. G. Chaves, Y. Uchiyama, R. Buehler, Brian L Winer, Paul S. Ray, E. Hays, Alice Allafort, S. Buson, A. Chekhtman, P. Lubrano, Marcello Giroletti, S. Rainò, D. J. Thompson, Tsunefumi Mizuno, F. Loparco, G. Chiaro, R. Claus, M. Pierbattista, J. Méhault, E. J. Siskind, K. Hayashi, P. Spinelli, T. Ohsugi, John W. Hewitt, P. Bruel, V. Vasileiou, T. J. Brandt, Claudia Cecchi, T. J. Johnson, Carmelo Sgrò, Riccardo Rando, Luca Baldini, Christo Venter, Diego F. Torres, E. Nuss, David Paneque, R. A. Cameron, Sylvain Guiriec, M. Kuss, Mn Mazziotta, X. Hou, F. Gargano, A. Franckowiak, K. S. Wood, Luca Latronico, G. Tosti, Johan Bregeon, M. Tinivella, Elizabeth C. Ferrara, Giacomo Vianello, Jürgen Knödlseder, Emanuele Bonamente, G. Godfrey, Melissa Pesce-Rollins, T. Reposeur, M. Razzano, F. de Palma, Filippo D'Ammando, A. Morselli, V. Vitale, Ronaldo Bellazzini, Marianne Lemoine-Goumard, M. E. Monzani, Matthew G. Baring, Daniela Hadasch, A. S. Johnson, James Chiang, M. Marelli, M. Hayashida, L. Di Venere, G. A. Caliandro, T. L. Usher, Roger W. Romani, Jean Ballet, Stefano Ciprini, M. Mayer, Nicola Giglietto, P. A. Caraveo, Persis S. Drell, Justin Vandenbroucke, Guido Barbiellini, S. Larsson, M. Orienti, D. Malyshev, L. Tibaldo, Denis Bastieri, J. Lande, P. M. Saz Parkinson, Andrew W. Strong, Alberto Sartori, T. Glanzman, G. Pivato, Eugenio Bottacini, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-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), Istituto Nazionale di Fisica Nucleare, sezione di Bari (INFN, sezione di Bari), National Institute for Nuclear Physics (INFN), IEEC-CSIC, Universitat Autònoma de Barcelona [Barcelona] (UAB), Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), FERMI, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), 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), Istituto Nazionale di Fisica Nucleare (INFN), Universitat Autònoma de Barcelona (UAB), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), 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)-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), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), 12006653 - Venter, Christo, Allafort, A., Baldini, L., Ballet, J., BARBIELLINI AMIDEI, Guido, Baring, M. G., Bastieri, D., Bellazzini, R., Bonamente, E., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caraveo, P. A., Cecchi, C., Chaves, R. C. G., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., D'Ammando, F., de Palma, F., Digel, S. W., Di Venere, L., Drell, P. S., Favuzzi, C., Ferrara, E. C., Franckowiak, A., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giroletti, M., Glanzman, T., Godfrey, G., Grenier, I. A., Guiriec, S., Hadasch, D., Harding, A. K., Hayashida, M., Hayashi, K., Hays, E., Hewitt, J., Hill, A. B., Horan, D., Hou, X., Jogler, T., Johnson, A. S., Johnson, T. J., Kerr, M., Knödlseder, J., Kuss, M., Lande, J., Larsson, S., Latronico, L., Lemoine Goumard, M., Longo, Francesco, Loparco, F., Lubrano, P., Malyshev, D., Marelli, M., Mayer, M., Mazziotta, M. N., Mehault, J., Mizuno, T., Monzani, M. E., Morselli, A., Murgia, S., Nemmen, R., Nuss, E., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Paneque, D., Pesce Rollins, M., Pierbattista, M., Piron, F., Pivato, G., Porter, T. A., Rainò, S., Rando, R., Ray, P. S., Razzano, M., Reimer, O., Reposeur, T., Romani, R. W., Sartori, A., Saz Parkinson, P. M., Sgrò, C., Siskind, E. J., Smith, D. A., Spinelli, P., Strong, A. W., Takahashi, H., Thayer, J. B., Thompson, D. J., Tibaldo, L., Tinivella, M., Torres, D. F., Tosti, G., Uchiyama, Y., Usher, T. L., Vandenbroucke, J., Vasileiou, V., Venter, C., Vianello, G., Vitale, V., Winer, B. L., Wood, K. S., Allafort A, Baldini L, Ballet J, Barbiellini G, Baring MG, Bastieri D, Bellazzini R, Bonamente E, Bottacini E, Brandt TJ, Bregeon J, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Cecchi C, Chaves RCG, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Claus R, DAmmando F, de Palma F, Digel SW, Di Venere L, Drell PS, Favuzzi C, Ferrara EC, Franckowiak A, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giroletti M, Glanzman T, Godfrey G, Grenier IA, Guiriec S, Hadasch D, Harding AK, Hayashida M, Hayashi K, Hays E, Hewitt J, Hill AB, Horan D, Hou X, Jogler T, Johnson AS, Johnson TJ, Kerr M, Knodlseder J, Kuss M, Lande J, Larsson S, Latronico L, Lemoine-Goumard M, Longo F, Loparco F, Lubrano P, Malyshev D, Marelli M, Mayer M, Mazziotta MN, Mehault J, Mizuno T, Monzani ME, Morselli A, Murgia S, Nemmen R, Nuss E, Ohsugi T, Omodei N, Orienti M, Orlando E, Paneque D, Pesce-Rollins M, Pierbattista M, Piron F, Pivato G, Porter TA, Raino S, Rando R, Ray PS, Razzano M, Reimer O, Reposeur T, Romani RW, Sartori A, Parkinson PMS, Sgro C, Siskind EJ, Smith DA, Spinelli P, Strong AW, Takahashi H, Thayer JB, Thompson DJ, Tibaldo L, Tinivella M, Torres DF, Tosti G, Uchiyama Y, Usher TL, Vandenbroucke J, Vasileiou V, Venter C, Vianello G, Vitale V, Winer BL, and Wood KS
Subjects: [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Flux, individual: PSR J2021+4026 [pulsars], Astrophysics, gamma rays: stars, 01 natural sciences, star [gamma rays], pulsars: individual (PSR J2021+4026), stars: neutron, Pulsar, gamma rays: star, 0103 physical sciences, Emission spectrum, 010303 astronomy & astrophysics, Physics, pulsars: individual: PSR J2021+4026, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Gamma ray, stars [Gamma rays], Astronomy, individual (PSR J2021+4026) [Pulsars], Astronomy and Astrophysics, neutron [Stars], Gamma-ray astronomy, Wavelength, Stars, Space and Planetary Science, ddc:520, Astrophysics - High Energy Astrophysical Phenomena, Gamma rays: stars, Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal / 2 777(1), L2 (2013). doi:10.1088/2041-8205/777/1/L2, Long-term monitoring of PSR J2021+4026 in the heart of the Cygnus region with the Fermi Large Area Telescope unveiled a sudden decrease in flux above 100 MeV over a timescale shorter than a week. The "jump" was near MJD 55850 (2011 October 16), with the flux decreasing from (8.33 ± 0.08) × 10–10 erg cm–2 s–1 to (6.86 ± 0.13) × 10–10 erg cm–2 s–1. Simultaneously, the frequency spindown rate increased from (7.8 ± 0.1) × 10–13 Hz s–1 to (8.1 ± 0.1) × 10–13 Hz s–1. Significant (>5σ) changes in the pulse profile and marginal (, Published by Institute of Physics Publ., London
Published: 2013
Full Text: View/download PDF

38. Constraints on the Galactic Population of TeV Pulsar Wind Nebulae Using Fermi Large Area Telescope Observations

Author: Janet Conrad, A. Reimer, Xian Hou, M. Tinivella, A. S. Johnson, Elizabeth C. Ferrara, A. Morselli, R. Claus, Marianne Lemoine-Goumard, M. Brigida, Hiromitsu Takahashi, Frederic Piron, V. Vasileiou, Emanuele Bonamente, Kent S. Wood, S. Murgia, C. Cecchi, Dario Gasparrini, M. Orienti, T. Reposeur, Y. Takeuchi, Denis Bastieri, E. Do Couto E Silva, F. Giordano, T. A. Porter, J.H. Panetta, Alice K. Harding, Alex Drlica-Wagner, Melissa Pesce-Rollins, T. J. Brandt, R. C. G. Chaves, W. B. Focke, T. Jogler, John W. Hewitt, L. Falletti, Sylvain Guiriec, A. Chekhtman, E. D. Bloom, Akira Okumura, M. E. Monzani, J. S. Perkins, Nicola Giglietto, Jean Ballet, Markus Ackermann, Tsunefumi Mizuno, V. Vitale, Michael Mayer, Gudlaugur Johannesson, S. J. Fegan, M. N. Lovellette, Stefano Ciprini, J. B. Thayer, E. J. Siskind, Yoshiyuki Inoue, G. Chiaro, P. A. Caraveo, Persis S. Drell, Gino Tosti, Justin Vandenbroucke, R. E. Hughes, Guido Barbiellini, Takeshi Nakamori, T. Grégoire, Luca Baldini, G. Godfrey, Martino Marelli, F. Gargano, T. Ohsugi, J. E. Grove, Yasushi Fukazawa, Francesco Longo, T. Glanzman, Gloria Spandre, M.-H. Grondin, D. J. Thompson, Eleonora Troja, Miranda Jackson, Alice Allafort, M. N. Mazziotta, J. Chiang, F. de Palma, Morihiro Hayashida, J. G. Thayer, Yasunobu Uchiyama, M. Kuss, P. Fusco, Matthew Kerr, L. Di Venere, Giacomo Vianello, Jürgen Knödlseder, Y. Hanabata, Johann Cohen-Tanugi, G. Pivato, T. Kawano, R. Rousseau, C. Favuzzi, G. A. Caliandro, Eugenio Bottacini, Z. Yang, Eric Nuss, J. Lande, Charles D. Dermer, A. Franckowiak, A. B. Hill, Stefan Funk, Michael Werner, Eric Charles, E. Hays, Steven Ritz, D. J. Suson, Carmelo Sgrò, Riccardo Rando, Ronaldo Bellazzini, David Paneque, S. Rainò, Francesco Massaro, J. F. Ormes, S. Cutini, F. Loparco, W. Mitthumsiri, I. A. Grenier, David A. Smith, S. Buson, Fabio Acero, P. Lubrano, C. Monte, R. A. Cameron, Roger Blandford, L. Latronico, Rodrigo Nemmen, Kazuhiko Hayashi, Diego F. Torres, Elena Orlando, D. Horan, J. Mehault, Johan Bregeon, B. L. Winer, Julie McEnery, M. Roth, Marco Ajello, L. Tibaldo, D. Hadasch, Igor V. Moskalenko, Olaf Reimer, Pascal Bruel, Omar Tibolla, R. Buehler, A. Schulz, Peter F. Michelson, Marcello Giroletti, P. Spinelli, Keith Bechtol, Stefan Larsson, M. Razzano, P. M. Saz Parkinson, Filippo D'Ammando, T. Kamae, M. Dalton, Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Istituto Nazionale di Fisica Nucleare, sezione di Bari (INFN, sezione di Bari), Istituto Nazionale di Fisica Nucleare (INFN), FERMI, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Acero F, Ackermann M, Ajello M, Allafort A, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bechtol K, Bellazzini R, Blandford RD, Bloom ED, Bonamente E, Bottacini E, Brandt TJ, Bregeon J, Brigida M, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Cecchi C, Charles E, Chaves RCG, Chekhtman A, Chiang J, Chiaro G, Ciprini S, Claus R, Cohen-Tanugi J, Conrad J, Cutini S, Dalton M, DAmmando F, de Palma F, Dermer CD, Di Venere L, Silva EDE, Drell PS, Drlica-Wagner A, Falletti L, Favuzzi C, Fegan SJ, Ferrara EC, Focke WB, Franckowiak A, Fukazawa Y, Funk S, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Gregoire T, Grenier IA, Grondin MH, Grove JE, Guiriec S, Hadasch D, Hanabata Y, Harding AK, Hayashida M, Hayashi K, Hays E, Hewitt J, Hill AB, Horan D, Hou X, Hughes RE, Inoue Y, Jackson MS, Jogler T, Johannesson G, Johnson AS, Kamae T, Kawano T, Kerr M, Knodlseder J, Kuss M, Lande J, Larsson S, Latronico L, Lemoine-Goumard M, Longo F, Loparco F, Lovellette MN, Lubrano P, Marelli M, Massaro F, Mayer M, Mazziotta MN, McEnery JE, Mehault J, Michelson PF, Mitthumsiri W, Mizuno T, Monte C, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nakamori T, Nemmen R, Nuss E, Ohsugi T, Okumura A, Orienti M, Orlando E, Ormes JF, Paneque D, Panetta JH, Perkins JS, Pesce-Rollins M, Piron F, Pivato G, Porter TA, Raino S, Rando R, Razzano M, Reimer A, Reimer O, Reposeur T, Ritz S, Roth M, Rousseau R, Parkinson PMS, Schulz A, Sgro C, Siskind EJ, Smith DA, Spandre G, Spinelli P, Suson DJ, Takahashi H, Takeuchi Y, Thayer JG, Thayer JB, Thompson DJ, Tibaldo L, Tibolla O, Tinivella M, Torres DF, Tosti G, Troja E, Uchiyama Y, Vandenbroucke J, Vasileiou V, Vianello G, Vitale V, Werner M, Winer BL, Wood KS, Yang Z, Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-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), 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), 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)-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), Acero, F., Ackermann, M., Ajello, M., Allafort, A., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bechtol, K., Bellazzini, R., Blandford, R. D., Bloom, E. D., Bonamente, E., Bottacini, E., Brandt, T. J., Bregeon, J., Brigida, M., Bruel, P., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caraveo, P. A., Cecchi, C., Charles, E., Chaves, R. C. G., Chekhtman, A., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Cohen Tanugi, J., Conrad, J., Cutini, S., Dalton, M., D'Ammando, F., de Palma, F., Dermer, C. D., Di Venere, L., Silva, E. do Couto e., Drell, P. S., Drlica Wagner, A., Falletti, L., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Grégoire, T., Grenier, I. A., Grondin, M. H., Grove, J. E., Guiriec, S., Hadasch, D., Hanabata, Y., Harding, A. K., Hayashida, M., Hayashi, K., Hays, E., Hewitt, J., Hill, A. B., Horan, D., Hou, X., Hughes, R. E., Inoue, Y., Jackson, M. S., Jogler, T., Jóhannesson, G., Johnson, A. S., Kamae, T., Kawano, T., Kerr, M., Knödlseder, J., Kuss, M., Lande, J., Larsson, S., Latronico, L., Lemoine Goumard, M., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Marelli, M., Massaro, F., Mayer, M., Mazziotta, M. N., Mcenery, J. E., Mehault, J., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monte, C., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Nakamori, T., Nemmen, R., Nuss, E., Ohsugi, T., Okumura, A., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Panetta, J. H., Perkins, J. S., Pesce Rollins, M., Piron, F., Pivato, G., Porter, T. A., Rainò, S., Rando, R., Razzano, M., Reimer, A., Reimer, O., Reposeur, T., Ritz, S., Roth, M., Rousseau, R., Saz Parkinson, P. M., Schulz, A., Sgrò, C., Siskind, E. J., Smith, D. A., Spandre, G., Spinelli, P., Suson, D. J., Takahashi, H., Takeuchi, Y., Thayer, J. G., Thayer, J. B., Thompson, D. J., Tibaldo, L., Tibolla, O., Tinivella, M., Torres, D. F., Tosti, G., Troja, E., Uchiyama, Y., Vandenbroucke, J., Vasileiou, V., Vianello, G., Vitale, V., Werner, M., Winer, B. L., Wood, K. S., Yang, Z., Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), National Institute for Nuclear Physics (INFN), and Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2)
Subjects: [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::High Energy Astrophysical Phenomena, Population, FOS: Physical sciences, Context (language use), Astrophysics, 01 natural sciences, law.invention, Telescope, Pulsar, law, 0103 physical sciences, Radiative transfer, Astrophysics::Solar and Stellar Astrophysics, education, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), education.field_of_study, 010308 nuclear & particles physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, Spectral density, Astronomy and Astrophysics, gamma rays: general, Galactic plane, Space and Planetary Science, ddc:520, Physics::Accelerator Physics, Astrophysics - High Energy Astrophysical Phenomena, general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: Pulsar wind nebulae (PWNe) have been established as the most populous class of TeV gamma-ray emitters. Since launch, the Fermi Large Area Telescope (LAT)identified five high-energy (100MeV, Comment: 72 pages, 13 figures
Published: 2013
Full Text: View/download PDF

39. MULTIWAVELENGTH OBSERVATIONS OF GRB 110731A: GeV EMISSION FROM ONSET TO AFTERGLOW

Author: T. Ohsugi, Akihiko Fukui, W. S. Paciesas, P. Fusco, Eleonora Troja, G. Godfrey, Miranda Jackson, Dario Gasparrini, Marco Ajello, J. B. Thayer, S. Rainò, Tsunefumi Mizuno, S. Murgia, J. E. Grove, Yasushi Fukazawa, Luca Latronico, I. A. Grenier, O. Littlejohns, Matthew G. Baring, Daniel Sánchez, Peter Mészáros, L. Tibaldo, Jonathan Granot, A. De Angelis, R. M. Kippen, Judith Racusin, V. Vasileiou, Elisabetta Bissaldi, R. Filgas, S. Buson, M. Tinivella, F. de Palma, G. Tosti, F. Piron, Stefano Ciprini, Sheila McBreen, P. Bruel, Jan Conrad, C. Monte, T. Jogler, Nicola Omodei, Masanori Ohno, A. P. Waite, Hiromitsu Takahashi, Melissa Pesce-Rollins, Valerie Connaughton, Giacomo Vianello, T. L. Usher, J. G. Thayer, Takashi Sako, Luca Baldini, Eda Sonbas, Alex Drlica-Wagner, E. Orlando, A. Reimer, K. S. Wood, Jürgen Knödlseder, M. Roth, J. Mehault, D. Kocevski, S. McGlynn, A. S. Johnson, S. Cutini, V. Pelassa, E. J. Siskind, A. von Kienlin, David Gruber, Johan Bregeon, T. Glanzman, J. M. Burgess, P. N. Bhat, M. Naumann-Godo, Ronaldo Bellazzini, R. Buehler, C. Romoli, E. Hays, J. S. Perkins, S. J. Fegan, Igor V. Moskalenko, Julie McEnery, Brian L Winer, Nicola Giglietto, Katsuaki Asano, M. E. Monzani, Peter F. Michelson, Marcello Giroletti, Markus Ackermann, T. Nymark, Y. Hanabata, G. Pivato, Olaf Reimer, M. N. Lovellette, M. Hayashida, Robert D. Preece, P. A. Caraveo, A. Franckowiak, R. E. Hughes, Persis S. Drell, Charles D. Dermer, E. Do Couto E Silva, Eugenio Bottacini, Denis Bastieri, E. Moretti, F. D'Ammando, F. Loparco, C. Favuzzi, T. Krühler, W. Mitthumsiri, A. J. van der Horst, R. Claus, J. Lande, Sylvain Guiriec, F. Gargano, Johann Cohen-Tanugi, Zhenwei Yang, Daniela Hadasch, Michael S. Briggs, Carmelo Sgrò, Riccardo Rando, Francesco Longo, E. Nuss, David Paneque, M. Kuss, T. N. Ukwatta, Jay P. Norris, G. A. Caliandro, R. C. G. Chaves, James Chiang, Roger Blandford, M. Razzano, Soebur Razzaque, S. R. Oates, N. Gehrels, Suzanne Foley, Arne Rau, Gudlaugur Johannesson, Claudia Cecchi, Felix Ryde, M. Stamatikos, Justin Vandenbroucke, Guido Barbiellini, M. Orienti, A. Morselli, V. Vitale, A. Chekhtman, M. N. Mazziotta, M. Brigida, W. B. Focke, P. Spinelli, Chryssa Kouveliotou, S. Larsson, Francesco Giordano, R. A. Cameron, Jochen Greiner, S. Klose, Emanuele Bonamente, A. W. Borgland, Takaaki Tanaka, Paul J. Tristram, P. Lubrano, D. A. Kann, Eric Charles, Ackermann M, Ajello M, Asano K, Baldini L, Barbiellini G, Baring MG, Bastieri D, Bellazzini R, Blandford RD, Bonamente E, Borgland AW, Bottacini E, Bregeon J, Brigida M, Bruel P, Buehler R, Buson S, Caliandro GA, Cameron RA, Caraveo PA, Cecchi C, Charles E, Chaves RCG, Chekhtman A, Chiang J, Ciprini S, Claus R, Cohen-Tanugi J, Conrad J, Cutini S, DAmmando F, de Angelis A, de Palma F, Dermer CD, Silva EDE, Drell PS, Drlica-Wagner A, Favuzzi C, Fegan SJ, Focke WB, Franckowiak A, Fukazawa Y, Fusco P, Gargano F, Gasparrini D, Gehrels N, Giglietto N, Giordano F, Giroletti M, Glanzman T, Godfrey G, Granot J, Greiner J, Grenier IA, Grove JE, Guiriec S, Hadasch D, Hanabata Y, Hayashida M, Hays E, Hughes RE, Jackson MS, Jogler T, Johannesson G, Johnson AS, Knodlseder J, Kocevski D, Kuss M, Lande J, Larsson S, Latronico L, Longo F, Loparco F, Lovellette MN, Lubrano P, Mazziotta MN, McEnery JE, Mehault J, Meszaros P, Michelson PF, Mitthumsiri W, Mizuno T, Monte C, Monzani ME, Moretti E, Morselli A, Moskalenko IV, Murgia S, Naumann-Godo M, Norris JP, Nuss E, Nymark T, Ohno M, Ohsugi T, Omodei N, Orienti M, Orlando E, Paneque D, Perkins JS, Pesce-Rollins M, Piron F, Pivato G, Racusin JL, Raino S, Rando R, Razzano M, Razzaque S, Reimer A, Reimer O, Romoli C, Roth M, Ryde F, Sanchez DA, Sgro C, Siskind EJ, Sonbas E, Spinelli P, Stamatikos M, Takahashi H, Tanaka T, Thayer JG, Thayer JB, Tibaldo L, Tinivella M, Tosti G, Troja E, Usher TL, Vandenbroucke J, Vasileiou V, Vianello G, Vitale V, Waite AP, Winer BL, Wood KS, Yang Z, Gruber D, Bhat PN, Bissaldi E, Briggs MS, Burgess JM, Connaughton V, Foley S, Kippen RM, Kouveliotou C, McBreen S, McGlynn S, Paciesas WS, Pelassa V, Preece R, Rau A, van der Horst AJ, von Kienlin A, Kann DA, Filgas R, Klose S, Kruhler T, Fukui A, Sako T, Tristram PJ, Oates SR, Ukwatta TN, Littlejohns O, High Energy Astrophys. & Astropart. Phys (API, FNWI), Ackermann, M., Ajello, M., Asano, K., Baldini, L., BARBIELLINI AMIDEI, Guido, Baring, M. G., Bastieri, D., Bellazzini, R., Blandford, R. D., Bonamente, E., Borgland, A. W., Bottacini, E., Bregeon, J., Brigida, M., Bruel, P., Buehler, R., Buson, S., Caliandro, G. A., Cameron, R. A., Caraveo, P. A., Cecchi, C., Charles, E., Chaves, R. C. G., Chekhtman, A., Chiang, J., Ciprini, S., Claus, R., Cohen Tanugi, J., Conrad, J., Cutini, S., D'Ammando, F., de Angelis, A., de Palma, F., Dermer, C. D., Silva, E. do Couto e., Drell, P. S., Drlica Wagner, A., Favuzzi, C., Fegan, S. J., Focke, W. B., Franckowiak, A., Fukazawa, Y., Fusco, P., Gargano, F., Gasparrini, D., Gehrels, N., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Granot, J., Greiner, J., Grenier, I. A., Grove, J. E., Guiriec, S., Hadasch, D., Hanabata, Y., Hayashida, M., Hays, E., Hughes, R. E., Jackson, M. S., Jogler, T., Jóhannesson, G., Johnson, A. S., Knödlseder, J., Kocevski, D., Kuss, M., Lande, J., Larsson, S., Latronico, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Mazziotta, M. N., Mcenery, J. E., Mehault, J., Mészáros, P., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monte, C., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Murgia, S., Naumann Godo, M., Norris, J. P., Nuss, E., Nymark, T., Ohno, M., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Paneque, D., Perkins, J. S., Pesce Rollins, M., Piron, F., Pivato, G., Racusin, J. L., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Romoli, C., Roth, M., Ryde, F., Sanchez, D. A., Sgrò, C., Siskind, E. J., Sonbas, E., Spinelli, P., Stamatikos, M., Takahashi, H., Tanaka, T., Thayer, J. G., Thayer, J. B., Tibaldo, L., Tinivella, M., Tosti, G., Troja, E., Usher, T. L., Vandenbroucke, J., Vasileiou, V., Vianello, G., Vitale, V., Waite, A. P., Winer, B. L., Wood, K. S., Yang, Z., Gruber, D., Bhat, P. N., Bissaldi, Elisabetta, Briggs, M. S., Burgess, J. M., Connaughton, V., Foley, S., Kippen, R. M., Kouveliotou, C., Mcbreen, S., Mcglynn, S., Paciesas, W. S., Pelassa, V., Preece, R., Rau, A., van der Horst, A. J., von Kienlin, A., Kann, D. A., Filgas, R., Klose, S., Krühler, T., Fukui, A., Sako, T., Tristram, P. J., Oates, S. R., Ukwatta, T. N., and Littlejohns, O.
Subjects: Physics, Opacity, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, individual (GRB110731A) [gamma-ray burst], Light curve, gamma-ray burst: individual (GRB110731A), Afterglow, law.invention, Telescope, Lorentz factor, symbols.namesake, Space and Planetary Science, law, Observatory, symbols, ddc:520, Astrophysics - High Energy Astrophysical Phenomena, Gamma-ray burst, Astrophysics::Galaxy Astrophysics, Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal 763(2), 71 (2013). doi:10.1088/0004-637X/763/2/71, We report on the multiwavelength observations of the bright, long gamma-ray burst GRB 110731A, by the Fermi and Swift observatories, and by the MOA and GROND optical telescopes. The analysis of the prompt phase reveals that GRB 110731A shares many features with bright Large Area Telescope bursts observed by Fermi during the first three years on-orbit: a light curve with short time variability across the whole energy range during the prompt phase, delayed onset of the emission above 100 MeV, extra power-law component and temporally extended high-energy emission. In addition, this is the first GRB for which simultaneous GeV, X-ray, and optical data are available over multiple epochs beginning just after the trigger time and extending for more than 800 s, allowing temporal and spectral analysis in different epochs that favor emission from the forward shock in a wind-type medium. The observed temporally extended GeV emission is most likely part of the high-energy end of the afterglow emission. Both the single-zone pair transparency constraint for the prompt signal and the spectral and temporal analysis of the forward-shock afterglow emission independently lead to an estimate of the bulk Lorentz factor of the jet Γ ~ 500-550., Published by Univ.11032, Chicago, Ill. [u.a.]
Published: 2013
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40. The Second Fermi Large Area Telescope Catalog of Gamma-ray Pulsars

Author: G. Busetto, Brian L Winer, John J. Ruan, A. A. Moiseev, Eric Charles, Steven Ritz, D. J. Suson, Luca Baldini, Simon Johnston, F. Loparco, N. Renault, W. Mitthumsiri, Na Wang, Sylvain Guiriec, I. A. Grenier, James Chiang, Jeffrey D. Scargle, Roger W. Romani, Jürgen Knödlseder, S. Germani, K. S. Wood, P. Lubrano, M. Marelli, Jayashree Roy, R. Buehler, Jun Kataoka, Gloria Spandre, Ronaldo Bellazzini, A. S. Johnson, S. Cutini, Michael Kramer, T. Ohsugi, Eleonora Troja, Miranda Jackson, Maura McLaughlin, T. Reposeur, Peter F. Michelson, Marcello Giroletti, Francesco Longo, R. C. G. Chaves, Yasunobu Uchiyama, Johann Cohen-Tanugi, M. Orienti, Alex Drlica-Wagner, Dario Gasparrini, M. Hayashida, Sylvain Chaty, Nanda Rea, E. D. Bloom, Jean Ballet, A. Morselli, Xian Hou, V. Vitale, T. Jogler, Charles D. Dermer, R. N. Manchester, D. Parent, M. E. Monzani, Andrea Belfiore, Stefano Ciprini, Bhaswati Bhattacharyya, Gemma H. Janssen, R. Rousseau, J. Lande, Scott M. Ransom, Michael Keith, Luca Latronico, P. R. den Hartog, Gino Tosti, M. Mayer, Francesco Massaro, R. E. Hughes, A. W. Chen, A. B. Hill, L. R. Cominsky, Igor V. Moskalenko, Melissa Pesce-Rollins, J. G. Thayer, M. Burgay, Elisabetta Bissaldi, Olaf Reimer, Paul S. Ray, Holger J. Pletsch, M. Tinivella, T. L. Usher, M. E. DeCesar, Jason W. T. Hessels, Paulo C. C. Freire, G. A. Caliandro, Jan Conrad, Elizabeth C. Ferrara, Takeshi Nakamori, J. M. Casandjian, Terri Brandt, Hiromitsu Takahashi, André Schulz, Patrick Weltevrede, Andrew W. Strong, M. N. Mazziotta, D. Dumora, C. Favuzzi, J. Mehault, Christo Venter, A. De Angelis, P. Fusco, L. Guillemot, D. J. Thompson, T. H. Burnett, Diego F. Torres, A. A. Abdo, E. Orlando, Gregory Desvignes, W. N. Johnson, Gilles Theureau, L. Tibaldo, S. Murgia, M. T. Wolff, C. Cecchi, Alberto Sartori, T. Glanzman, F. Piron, Rodrigo Nemmen, Matthew Kerr, Matthew G. Baring, D. Horan, Giacomo Vianello, Fernando Camilo, L. Di Venere, Gudlaugur Johannesson, O. Tibolla, Masanori Ohno, D. L. Wood, E. Hays, Y. Hanabata, G. Pivato, M. Roth, F. Gargano, Alice K. Harding, Ismaël Cognard, Benjamin Stappers, Justin Vandenbroucke, Emanuele Bonamente, J. F. Ormes, Eugenio Bottacini, T. A. Porter, Guido Barbiellini, E. J. Siskind, David A. Smith, L. Falletti, Denis Bastieri, R. Claus, Marianne Lemoine-Goumard, Johan Bregeon, D. Hadasch, Ryan Shannon, A. Possenti, A. Reimer, J. H. Panetta, M. Razzano, S. Rainò, Eric V. Gotthelf, Tsunefumi Mizuno, Filippo D'Ammando, Julie McEnery, T. Kamae, M. Brigida, Stephen E. Thorsett, R. P. Johnson, G. Chiaro, J. E. Grove, P. M. Saz Parkinson, J. S. Perkins, Paolo Giommi, Marco Ajello, J. B. Thayer, S. Larsson, S. Buson, Nicola Giglietto, A. De Luca, M. N. Lovellette, P. A. Caraveo, Persis S. Drell, Alice Allafort, Roberto Mignani, Tyrel J. Johnson, R. A. Cameron, A. Chekhtman, R. Dubois, W. B. Focke, P. Spinelli, Seth Digel, Francesco Giordano, John W. Hewitt, P. Bruel, V. Vasileiou, Matthew Wood, G. Godfrey, F. de Palma, Andrew Lyne, M.-H. Grondin, Robert R. Rando, M. Pierbattista, Cristobal M. Espinoza, Omer Celik, A. Franckowiak, Stefan Funk, Zhenwei Yang, Carmelo Sgrò, E. Nuss, David Paneque, M. Kuss, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-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), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), FERMI, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Istituto Nazionale di Fisica Nucleare, sezione di Bari (INFN, sezione di Bari), National Institute for Nuclear Physics (INFN), IEEC-CSIC, Universitat Autònoma de Barcelona [Barcelona] (UAB), Laboratoire d'Astrophysique de Grenoble (LAOG), Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, High Energy Astrophys. & Astropart. Phys (API, FNWI), Abdo AA, Ajello M, Allafort A, Baldini L, Ballet J, Barbiellini G, Baring MG, Bastieri D, Belfiore A, Bellazzini R, Bhattacharyya B, Bissaldi E, Bloom ED, Bonamente E, Bottacini E, Brandt TJ, Bregeon J, Brigida M, Bruel P, Buehler R, Burgay M, Burnett TH, Busetto G, Buson S, Caliandro GA, Cameron RA, Camilo F, Caraveo PA, Casandjian JM, Cecchi C, Celik O, Charles E, Chaty S, Chaves RCG, Chekhtman A, Chen AW, Chiang J, Chiaro G, Ciprini S, Claus R, Cognard I, Cohen-Tanugi J, Cominsky LR, Conrad J, Cutini S, DAmmando F, De Angelis A, DeCesar ME, De Luca A, Den Hartog PR, De Palma F, Dermer CD, Desvignes G, Digel SW, Di Venere L, Drell PS, Drlica-Wagner A, Dubois R, Dumora D, Espinoza CM, Falletti L, Favuzzi C, Ferrara EC, Focke WB, Franckowiak A, Freire PCC, Funk S, Fusco P, Gargano F, Gasparrini D, Germani S, Giglietto N, Giommi P, Giordano F, Giroletti M, Glanzman T, Godfrey G, Gotthelf EV, Grenier IA, Grondin MH, Grove JE, Guillemot L, Guiriec S, Hadasch D, Hanabata Y, Harding AK, Hayashida M, Hays E, Hessels J, Hewitt J, Hill AB, Horan D, Hou X, Hughes RE, Jackson MS, Janssen GH, Jogler T, Johannesson G, Johnson RP, Johnson AS, Johnson TJ, Johnson WN, Johnston S, Kamae T, Kataoka J, Keith M, Kerr M, Knodlseder J, Kramer M, Kuss M, Lande J, Larsson S, Latronico L, Lemoine-Goumard M, Longo F, Loparco F, Lovellette MN, Lubrano P, Lyne AG, Manchester RN, Marelli M, Massaro F, Mayer M, Mazziotta MN, McEnery JE, McLaughlin MA, Mehault J, Michelson PF, Mignani RP, Mitthumsiri W, Mizuno T, Moiseev AA, Monzani ME, Morselli A, Moskalenko IV, Murgia S, Nakamori T, Nemmen R, Nuss E, Ohno M, Ohsugi T, Orienti M, Orlando E, Ormes JF, Paneque D, Panetta JH, Parent D, Perkins JS, Pesce-Rollins M, Pierbattista M, Piron F, Pivato G, Pletsch HJ, Porter TA, Possenti A, Raino S, Rando R, Ransom SM, Ray PS, Razzano M, Rea N, Reimer A, Reimer O, Renault N, Reposeur T, Ritz S, Romani RW, Roth M, Rousseau R, Roy J, Ruan J, Sartori A, Parkinson PMS, Scargle JD, Schulz A, Sgro C, Shannon R, Siskind EJ, Smith DA, Spandre G, Spinelli P, Stappers BW, Strong AW, Suson DJ, Takahashi H, Thayer JG, Thayer JB, Theureau G, Thompson DJ, Thorsett SE, Tibaldo L, Tibolla O, Tinivella M, Torres DF, Tosti G, Troja E, Uchiyama Y, Usher TL, Vandenbroucke J, Vasileiou V, Venter C, Vianello G, Vitale V, Wang N, Weltevrede P, Winer BL, Wolff MT, Wood DL, Wood KS, Wood M, Yang Z, Abdo, A. A., Ajello, M., Allafort, A., Baldini, L., Ballet, J., BARBIELLINI AMIDEI, Guido, Baring, M. G., Bastieri, D., Belfiore, A., Bellazzini, R., Bhattacharyya, B., Bissaldi, Elisabetta, Bloom, E. D., Bonamente, E., Bottacini, E., Brandt, T. J., Bregeon, J., Brigida, M., Bruel, P., Buehle, R., Burgay, M., Burnett, T. H., Busetto, G., Buson, S., Caliandro, G. A., Cameron, R. A., Camilo, F., Caraveo, P. A., Casandjian, J. M., Cecchi, C., Çelik, Ö., Charles, E., Chaty, S., Chaves, R. C. G., Chekhtman, A., Chen, A. W., Chiang, J., Chiaro, G., Ciprini, S., Claus, R., Cognard, I., Cohen Tanugi, J., Cominsky, L. R., Conrad, J., Cutini, S., D'Ammando, F., de Angelis, A., Decesar, M. E., De Luca, A., den Hartog, P. R., de Palma, F., Dermer, C. D., Desvignes, G., Digel, S. W., Di Venere, L., Drell, P. S., Drlica Wagner, A., Dubois, R., Dumora, D., Espinoza, C. M., Falletti, L., Favuzzi, C., Ferrara, E. C., Focke, W. B., Franckowiak, A., Freire, P. C. C., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Germani, S., Giglietto, N., Giommi, P., Giordano, F., Giroletti, M., Glanzman, T., Godfrey, G., Gotthelf, E. V., Grenier, I. A., Grondin, M. H., Grove, J. E., Guillemot, L., Guiriec, S., Hadasch, D., Hanabata, Y., Harding, A. K., Hayashida, M., Hays, E., Hessels, J., Hewitt, J., Hill, A. B., Horan, D., Hou, X., Hughes, R. E., Jackson, M. S., Janssen, G. H., Jogler, T., Jóhannesson, G., Johnson, R. P., Johnson, A. S., Johnson, T. J., Johnson, W. N., Johnston, S., Kamae, T., Kataoka, J., Keith, M., Kerr, M., Knödlseder, J., Kramer, M., Kuss, M., Lande, J., Larsson, S., Latronico, L., Lemoine Goumard, M., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Lyne, A. G., Manchester, R. N., Marelli, M., Massaro, F., Mayer, M., Mazziotta, M. N., Mcenery, J. E., Mclaughlin, M. A., Mehault, J., Michelson, P. F., Mignani, R. P., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Moskalenko, I. V., Murgia, S., Nakamori, T., Nemmen, R., Nuss, E., Ohno, M., Ohsugi, T., Orienti, M., Orlando, E., Ormes, J. F., Paneque, D., Panetta, J. H., Parent, D., Perkins, J. S., Pesce Rollins, M., Pierbattista, M., Piron, F., Pivato, G., Pletsch, H. J., Porter, T. A., Possenti, A., Rainò, S., Rando, R., Ransom, S. M., Ray, P. S., Razzano, M., Rea, N., Reimer, A., Reimer, O., Renault, N., Reposeur, T., Ritz, S., Romani, R. W., Roth, M., Rousseau, R., Roy, J., Ruan, J., Sartori, A., Saz Parkinson, P. M., Scargle, J. D., Schulz, A., Sgrò, C., Shannon, R., Siskind, E. J., Smith, D. A., Spandre, G., Spinelli, P., Stappers, B. W., Strong, A. W., Suson, D. J., Takahashi, H., Thayer, J. G., Thayer, J. B., Theureau, G., Thompson, D. J., Thorsett, S. E., Tibaldo, L., Tibolla, O., Tinivella, M., Torres, D. F., Tosti, G., Troja, E., Uchiyama, Y., Usher, T. L., Vandenbroucke, J., Vasileiou, V., Venter, C., Vianello, G., Vitale, V., Wang, N., Weltevrede, P., Winer, B. L., Wolff, M. T., Wood, D. L., Wood, K. S., Wood, M., and Yang, Z.
Subjects: Catalogs pulsars, general stars, neutron, catalog, CRAB PULSAR, Astrophysics, 01 natural sciences, Pulsar wind nebula, general [pulsars], law.invention, neutron, Millisecond pulsar, law, catalogs, pulsars: general, stars: neutron, 010303 astronomy & astrophysics, general stars, Physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, WIND NEBULA, SUPERNOVA REMNANT G21.5-0.9, Astrophysics - High Energy Astrophysical Phenomena, PHOTON IMAGING CAMERA, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], WHITE-DWARF COMPANION, MIDDLE-AGED PULSAR, DEEP OPTICAL OBSERVATIONS, NANCAY RADIO TELESCOPE, MILLISECOND PULSARS, LIGHT CURVES, Astrophysics::High Energy Astrophysical Phenomena, Catalogs pulsars, Astrophysics::Cosmology and Extragalactic Astrophysics, catalogs , pulsars: general , stars: neutron, Telescope, neutron [stars], Pulsar, 0103 physical sciences, Astrophysics::Galaxy Astrophysics, 010308 nuclear & particles physics, Crab Pulsar, catalogs – pulsars: general – stars: neutron, Astronomy, Astronomy and Astrophysics, Neutron star, Space and Planetary Science, ddc:520, X-ray pulsar, Fermi Gamma-ray Space Telescope
Abstract: This catalog summarizes 117 high-confidence > 0.1 GeV gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite. Half are neutron stars discovered using LAT data, through periodicity searches in gamma-ray and radio data around LAT unassociated source positions. The 117 pulsars are evenly divided into three groups: millisecond pulsars, young radio-loud pulsars, and young radio-quiet pulsars. We characterize the pulse profiles and energy spectra and derive luminosities when distance information exists. Spectral analysis of the off-peak phase intervals indicates probable pulsar wind nebula emission for four pulsars, and off-peak magnetospheric emission for several young and millisecond pulsars. We compare the gamma-ray properties with those in the radio, optical, and X-ray bands. We provide flux limits for pulsars with no observed gamma-ray emission, highlighting a small number of gamma-faint, radio-loud pulsars. The large, varied gamma-ray pulsar sample constrains emission models. Fermi's selection biases complement those of radio surveys, enhancing comparisons with predicted population distributions., Comment: 145 pages. Online files at http://fermi.gsfc.nasa.gov/ssc/data/access/lat/2nd_PSR_catalog/ A typo in the value of the photon flux for CTA 1 (PSR J0007+7303) has been corrected in Table 9. NASA ADS at http://cdsads.u-strasbg.fr/abs/2013ApJS..208...17A
Published: 2013
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41. The deep look onto the hard X-ray sky: The Swift - INTEGRAL X-ray (SIX) survey

Author: Jochen Greiner, Marco Ajello, and Eugenio Bottacini
Subjects: Swift, cosmology: observations, diffuse radiation, galaxies: active, galaxies: jets, surveys, X-rays: diffuse background, Astronomy and Astrophysics, Space and Planetary Science, Active galactic nucleus, Cosmology and Nongalactic Astrophysics (astro-ph.CO), media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Radiation, Blazar, Astrophysics::Galaxy Astrophysics, computer.programming_language, media_common, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), COSMIC cancer database, Galaxy, Redshift, Sky, Astrophysics - High Energy Astrophysical Phenomena, computer, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The super-massive black-holes in the centers of Active Galactic Nuclei (AGNs) are surrounded by obscuring matter that can block the nuclear radiation. Depending on the amount of blocked radiation, the flux from the AGN can be too faint to be detected by currently flying hard X-ray (above 15 keV) missions. At these energies only ~1% of the intensity of the Cosmic X-ray Background (CXB) can be resolved into point-like sources that are AGNs. In this work we address the question of the undetected sources contributing to the CXB with a very sensitive and new hard X-ray survey: the SIX survey that is obtained with the new approach of combining the Swift/BAT and INTEGRAL/IBIS X-ray observations. We merge the observations of both missions. This enhances the exposure time and reduces systematic uncertainties. As a result we obtain a new survey over a wide sky area of 6200 deg^2 that is more sensitive than the surveys of Swift/BAT or INTEGRAL/IBIS alone. Our sample comprises 113 sources: 86 AGNs (Seyfert-like and blazars), 5 galaxies, 2 clusters of galaxies, 3 Galactic sources, 3 previously detected unidentified X-ray sources, and 14 unidentified sources. The scientific outcome from the study of the sample has been properly addressed to study the evolution of AGNs at redshift below 0.4. We do not find any evolution using the 1/V_max method. Our sample of faint sources are suitable targets for the new generation hard X-ray telescopes with focusing techniques., ApJS accepted
Published: 2012

42. Photometric redshifts for gamma-ray burst afterglows from GROND and Swift/UVOT

Author: Thomas Krühler, S. Klose, E. F. Olivares, T. S. Koch, Jochen Greiner, R. Filgas, A. Yoldas, Marco Nardini, P. M. J. Afonso, Patricia Schady, M. J. Page, Adria C. Updike, A. Kupcu-Yoldas, C. Clemens, A. Rau, P. W. A. Roming, Eugenio Bottacini, A. M. Rossi, S. R. Oates, A. Nicuesa Guelbenzu, S. McBreen, Krühler, T, Schady, P, Greiner, J, Afonso, P, Bottacini, E, Clemens, C, Filgas, R, Klose, S, Koch, T, Küpcü Yoldaş, A, Oates, S, Olivares, F, Page, M, Mcbreen, S, Nardini, M, Nicuesa Guelbenzu, A, Rau, A, Roming, P, Rossi, A, Updike, A, and Yoldaş, A
Subjects: Swift, Physics, Length scale, gamma rays bursts: general, techniques: photometric, 010308 nuclear & particles physics, gamma rays bursts: general, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Redshift, Afterglow, Synchrotron emission, Photometry (optics), Wavelength, techniques: photometric, FIS/05 - ASTRONOMIA E ASTROFISICA, Space and Planetary Science, 0103 physical sciences, Gamma-ray burst, 010303 astronomy & astrophysics, computer, computer.programming_language
Abstract: Aims. We present a framework to obtain photometric redshifts (photo-zs) for gamma-ray burst afterglows. Using multi-band photometry from GROND and Swift/UVOT, photo-zs are derived for five GRBs for which spectroscopic redshifts are not available. Methods. We use UV/optical/NIR data and synthetic photometry based on afterglow observations and theory to derive the photometric redshifts of GRBs and their accuracy. Taking into account the afterglow synchrotron emission properties, we investigate the application of photometry to derive redshifts in a theoretical range between z ~ 1 to z ~ 12. Results. The measurement of photo-zs for GRB afterglows provides a quick, robust and reliable determination of the distance scale to the burst, particularly in those cases where spectroscopic observations in the optical/NIR range cannot be obtained. Given a sufficiently bright and mildly reddened afterglow, the relative photo-z accuracy η = Δz/(1 + z) is better than 10% between z = 1.5 and z ~ 7 and better than 5% between z = 2 and z = 6. We detail the approach on 5 sources without spectroscopic redshifts observed with UVOT on-board Swift and/or GROND. The distance scale to those same afterglows is measured to be z = 4.31 +0.14-0.15 for GRB 080825B, z = 2.13+0.14-0.20 for GRB 080906, z = 3.44+0.15-0.32 for GRB 081228, z = 2.03+0.16-0.14 for GRB 081230 and z = 1.28+0.16-0.15 for GRB 090530. Conclusions. Due to the exceptional luminosity and simple continuum spectrum of GRB afterglows, photometric redshifts can be obtained to an accuracy as good as η ~ 0.03 over a large redshift range including robust (η ~ 0.1) measurements in the ultra-high redshift regime (z ≈ 7). Combining the response from UVOT with ground-based observatories and in particular GROND operating in the optical/NIR wavelength regime, reliable photo-zs can be obtained from z ~ 1.0 out to z ~ 10, and possibly even at higher redshifts in some favorable cases, provided that these GRBs exist, are localized quickly, have sufficiently bright afterglows and are not heavily obscured. © 2011 ESO.
Published: 2011

43. The Multifrequency Campaign on 3C 279 in January 2006

Author: Werner Collmar, Eugenio Bottacini, Vadim Burwitz, Thomas P. Krichbaum, Dirk Grupe, Mark Gurwell, A. Cuccchiara, Markus Böttcher, Iván Agudo, and M. Bremer
Subjects: Active galactic nucleus, Electromagnetic spectrum, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, Radio spectrum, Spectral line, symbols.namesake, 0103 physical sciences, Blazar, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), quasars: individual: 3c 279, Astronomy and Astrophysics, Space and Planetary Science, 010308 nuclear & particles physics, Quasar, Lorentz factor, 13. Climate action, symbols, Spectral energy distribution, Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the results of a multifrequency campaign from radio to hard X-ray energies on the blazar 3C 279 during an optical high-state in January 2006. We give the observational results (multifrequency light curves and spectra) and compile an SED. This complements an SED from an optical low-state in June 2003. Surprisingly the two SEDs differ only in their high-energy synchrotron emission (near-IR - UV), while the low-energy inverse-Compton emission (X- to Gamma-rays) remained unchanged. By interpreting with a steady-state leptonic emission model, the variability among the SED can be reproduced by a change solely of the low-energy cutoff of the relativistic electron distribution. In an internal shock model for blazar emission, such a change could e.g. achieved through a varying relative Lorentz factor of colliding shells producing internal shocks in the jet., Comment: 11 pages, 9 figures, A&A accepted
Published: 2010
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44. Probing the Transition Between the Synchrotron and Inverse-compton Spectral Components of 1ES 1959+650

Author: Marco Ajello, Xiao-Ling Zhang, Patricia Schady, Markus Böttcher, Eugenio Bottacini, Jochen Greiner, Christian Fendt, and Arne Rau
Subjects: Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Nuclear and High Energy Physics, Spectral index, Radiation mechanisms: non-thermal, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, Fermi acceleration, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Spectral component, Synchrotron, law.invention, Telescope, X-rays: galaxies, Galaxies: jets, Space and Planetary Science, law, Spectral energy distribution, Astrophysics - High Energy Astrophysical Phenomena, Blazar, Flare
Abstract: 1ES 1959+650 is one of the most remarkable high-peaked BL Lacertae objects (HBL). In 2002, it exhibited a TeV gamma-ray flare without a similar brightening of the synchrotron component at lower energies. We present the results of a multifrequency campaign, triggered by the INTEGRAL IBIS detection of 1ES 1959+650. Our data range from the optical to hard X-ray energies, thus covering the synchrotron and inverse-Compton components simultaneously. We observed the source with INTEGRAL, the Swift X-Ray Telescope, and the UV-Optical Telescope, and nearly simultaneously with a ground-based optical telescope. The steep spectral component at X-ray energies is most likely due to synchrotron emission, while at soft gamma-ray energies the hard spectral index may be interpreted as the onset of the high-energy component of the blazar spectral energy distribution (SED). This is the first clear measurement of a concave X-ray-soft gamma-ray spectrum for an HBL. The SED can be well modeled with a leptonic synchrotron self-Compton model. When the SED is fitted this model requires a very hard electron spectral index of q ~ 1.85, possibly indicating the relevance of second-order Fermi acceleration., Comment: 5 pages, 2 postscript figures
Published: 2010
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45. XMM-Newton observations of XTE J1817-330 and XTE J1856+053

Author: Gloria Sala, Jochen Greiner, Eugenio Bottacini, Frank Haberl, Ye-Fei Yuan, Xiang-Dong Li, and Dong Lai
Subjects: Physics, Black hole, X-ray binaries, Physics and Astronomy (all), X-rays: Individual: XTE J1817-330, Black holes, Astrophysics (astro-ph), XTE J1856+053, FOS: Physical sciences, Astrophysics
Abstract: The black hole candidate XTE J1817-330 was discovered in outburst on 26 January 2006 with RXTE/ASM. One year later, on 28 February 2007, another X-ray transient discovered in 1996, XTE J1856+053, was detected by RXTE during a new outburst. We report on the spectra obtained by XMM-Newton of these two black hole candidates., Comment: Replaced with corrected version
Published: 2008
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46. XMM-Newton and INTEGRAL observations of the black hole candidate XTE J1817-330

Author: Gloria Sala, Jochen Greiner, Frank Haberl, Marco Ajello, and Eugenio Bottacini
Subjects: Physics, Photon, Absorption spectroscopy, Hydrogen, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), FOS: Physical sciences, chemistry.chemical_element, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, X-rays: individual: XTE J1817-330, Spectral line, Black hole, Stars: binaries, Stars: binaries: close, Space and Planetary Science, chemistry, Target of opportunity, Thermal, Spectroscopy, Astrophysics::Galaxy Astrophysics
Abstract: The galactic black hole candidate XTE J1817-330 was discovered in outburst by RXTE in January 2006. We present here the results of an XMM-Newton Target of opportunity observation (TOO), performed on 13 March 2006 (44 days after the maximum), and an INTEGRAL observation performed on 15-18 February 2006 (18 days after the maximum). The EPIC-pn camera on-board XMM-Newton was used in the fast read-out Burst mode to avoid photon pile-up, while the RGSs were used in Spectroscopy high count-rate mode. We fit both the XMM-Newton and the INTEGRAL spectra with a two-component model consisting of a thermal accretion disk and a comptonizing hot corona. The soft X-ray spectrum is dominated by an accretion disk component, with a maximum temperature decreasing from 0.96+/-0.04 keV at the time of the INTEGRAL observation to 0.70+/-m0.01 keV on 13 March. The Optical Monitors on board INTEGRAL and XMM-Newton showed the source with magnitudes V: 11.3-11.4, U:15.0-15.1 and UVW1:14.7-14.8. The soft X-ray spectrum, together with the optical and UV data, show a low hydrogen column density towards the source, and several absorption lines, most likely of interstellar origin, are detected in the RGS spectrum: OI K-alpha, OI K-beta, OII, OIII and OVII, which trace both cold and hot components of the ISM. The soft X-ray spectrum indicates the presence of a black hole, with an estimate for the upper limit of the mass of 6.0(+4.0/-2.5) Msun., Accepted for publication in A&A
Published: 2007

47. INTEGRAL and Multiwavelength Observations of the Blazar Mrk 421 during an Active Phase

Author: A. Sillanpaeae, Werner Collmar, D. Horan, G. G. Lichti, K. Nilsson, P. Charlot, T. C. Weekes, Dirk Petry, Eugenio Bottacini, A. von Kienlin, A. Laehteenmaeki, Merja Tornikoski, Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Observatoire aquitain des sciences de l'univers (OASU), Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), and Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux (L3AB)
Subjects: Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Spectrometer, 010308 nuclear & particles physics, Astrophysics (astro-ph), FOS: Physical sciences, AGN: Mrk 421, Astrophysics, 01 natural sciences, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Multiwavelength, Wavelength, Physics and Astronomy (all), Spectral evolution, Active phase, 0103 physical sciences, Blazar, 010303 astronomy & astrophysics, Blazars: Mrk 421
Abstract: A ToO observation of the TeV-emitting blazar Mrk 421 with INTEGRAL was triggered in June 2006 by an increase of the RXTE count rate to more than 30 mCrab. The source was then observed with all INTEGRAL instruments with the exception of the spectrometer SPI for a total exposure of 829 ks. During this time several outbursts were observed by IBIS and JEM-X. Multiwavelength observations were immediately triggered and the source was observed at radio, optical and X-ray wavelengths up to TeV energies. The data obtained during these observations are analysed with respect to spectral evolution and correlated variability. Preliminary results of the analysis are presented in this poster., Comment: 2 pages, 3 figures; to appear in the Proc. of the First Int. GLAST Symp. (Stanford, Feb. 5-8, 2007), eds. S.Ritz, P.F.Michelson, and C.Meegan, AIP Conf. Proc
Published: 2007
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48. The black-hole candidate XTE J1817-330 as seen by XMM-Newton and INTEGRAL

Author: Gloria Sala, Jochen Greiner, Eugenio Bottacini, and Frank Haberl
Published: 2007
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49. The SIX survey: evolution and properties of AGN in the local universe

Author: Eugenio Bottacini
Subjects: Physics, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Astronomy, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Universe, media_common
Abstract: Current most sensitive surveys at soft X-ray (~ 0.5–10 keV) energies by Chandra and XMM-Newton preferably sample AGN at high-redshift (z > 0.5). At low-redshift (z < 0.5), where AGN are supposed to be in their evolution end-stage, these sources are very sparsely sampled. The low-redshift universe is best fathomed at hard X–ray energies (> 15 keV) by the INTEGRAL and the Swift missions with their coded-mask telescopes IBIS/ISGRI and BAT respectively. These instruments have two major advantages: 1) they have a huge field of view, hence allowing to sample a large number of AGN at low-redshift; 2) they operate at energies above 15 keV, hence allowing detecting photons with enough power to efficiently pierce even through the Compton-thick torus of AGN. Estimates based on observations with PDS on board the BeppoSAX satellite predict that Compton-thick AGN should dominate over unabsorbed AGN in the local universe playing an important role in reproducing the shape and intensity of the cosmic X-ray background (CXB). However coded-mask detectors suffer from heavy systematic effects preventing them from reaching their theoretical limiting sensitivity. We overcome this limit with a new and alternative approach, which has been designed ad hoc to improve the sensitivity of hard X–ray surveys by using IBIS/ISGRI and BAT. Both telescopes are so close in design that their observations can be combined to obtain a more sensitive survey. The observations are combined with resampling, merging, and cross-calibration techniques. We are able to sample limiting fluxes of the order of ~3.3 times 10−12 erg cm−2 s−1 in the 18–55 keV energy range. This is called the SIX survey, that stands for Swift-INTEGRAL X-ray survey. The SIX survey extends over a wide sky area of 6200 deg2 and it is used to obtain a persistent sample of faint AGN. The source number density (log N - log S) is a factor of 3 better than current parent surveys of BAT and IBIS/ISGRI alone. I will present a study of the evolution of AGN in the local universe discussing the X-ray luminosity function. The properties of the AGN circum-nuclear environment will be discussed checking the consistency with the AGN unification scheme. Also I will compare the results from the SIX survey to the results predicted for the NuSTAR survey. Finally preliminary results of the all-sky SIX survey are presented.
Published: 2013
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50. PKS 0537-286, carrying the information of the environment of SMBHs in the early Universe

Author: Eliana Palazzi, Elena Pian, S. Covin, Nico Cappelluti, A. Rau, Marco Ajello, Jochen Greiner, G. Ghisellini, Eugenio Bottacini, P. M. J. Afonso, A. Küpcü Yoldas, and Thomas Krühler
Subjects: Swift, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Active - X-rays, Galaxies, Galaxies - Galaxies, High-redshift - Quasars, Individual PKS 0537-286 - Radiation mechanisms, Non-thermal, Astronomy and Astrophysics, Space and Planetary Science, FOS: Physical sciences, Synchrotron radiation, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Optical telescope, Astrophysics::Solar and Stellar Astrophysics, Blazar, Astrophysics::Galaxy Astrophysics, media_common, computer.programming_language, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Compton scattering, Universe, Astrophysics - High Energy Astrophysical Phenomena, computer, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: We present the results of a multifrequency campaign on the high-redshift (z = 3.1) blazar PKS 0537-286. The source was observed at different epochs from 2006 to 2008 with INTEGRAL and Swift, and nearly simultaneously with ground-based near-IR/optical telescopes. The SEDs are compatible with a model based on synchrotron radiation and external inverse Compton scattering. The campaign gives an insight into the physical environment of the blazar., 8 pages, 5 figures, accepted for publication in A&A
Published: 2009
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