Author: "K. Islo" - Searchworks@Jio Institute Digital Library Search Results

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23 results on '"K. Islo"'

1. Comparing Recent Pulsar Timing Array Results on the Nanohertz Stochastic Gravitational-wave Background

Author: G. Agazie, J. Antoniadis, A. Anumarlapudi, A. M. Archibald, P. Arumugam, S. Arumugam, Z. Arzoumanian, J. Askew, S. Babak, M. Bagchi, M. Bailes, A.-S. Bak Nielsen, P. T. Baker, C. G. Bassa, A. Bathula, B. Bécsy, A. Berthereau, N. D. R. Bhat, L. Blecha, M. Bonetti, E. Bortolas, A. Brazier, P. R. Brook, M. Burgay, S. Burke-Spolaor, R. Burnette, R. N. Caballero, A. Cameron, R. Case, A. Chalumeau, D. J. Champion, S. Chanlaridis, M. Charisi, S. Chatterjee, K. Chatziioannou, B. D. Cheeseboro, S. Chen, Z.-C. Chen, I. Cognard, T. Cohen, W. A. Coles, J. M. Cordes, N. J. Cornish, F. Crawford, H. T. Cromartie, K. Crowter, M. Curyło, C. J. Cutler, S. Dai, S. Dandapat, D. Deb, M. E. DeCesar, D. DeGan, P. B. Demorest, H. Deng, S. Desai, G. Desvignes, L. Dey, N. Dhanda-Batra, V. Di Marco, T. Dolch, B. Drachler, C. Dwivedi, J. A. Ellis, M. Falxa, Y. Feng, R. D. Ferdman, E. C. Ferrara, W. Fiore, E. Fonseca, A. Franchini, G. E. Freedman, J. R. Gair, N. Garver-Daniels, P. A. Gentile, K. A. Gersbach, J. Glaser, D. C. Good, B. Goncharov, A. Gopakumar, E. Graikou, J.-M. Griessmeier, L. Guillemot, K. Gültekin, Y. J. Guo, Y. Gupta, K. Grunthal, J. S. Hazboun, S. Hisano, G. B. Hobbs, S. Hourihane, H. Hu, F. Iraci, K. Islo, D. Izquierdo-Villalba, J. Jang, J. Jawor, G. H. Janssen, R. J. Jennings, A. Jessner, A. D. Johnson, M. L. Jones, B. C. Joshi, A. R. Kaiser, D. L. Kaplan, A. Kapur, F. Kareem, R. Karuppusamy, E. F. Keane, M. J. Keith, L. Z. Kelley, M. Kerr, J. S. Key, D. Kharbanda, T. Kikunaga, T. C. Klein, N. Kolhe, M. Kramer, M. A. Krishnakumar, A. Kulkarni, N. Laal, K. Lackeos, M. T. Lam, W. G. Lamb, B. B. Larsen, T. J. W. Lazio, K. J. Lee, Y. Levin, N. Lewandowska, T. B. Littenberg, K. Liu, T. Liu, Y. Liu, A. Lommen, D. R. Lorimer, M. E. Lower, J. Luo, R. Luo, R. S. Lynch, A. G. Lyne, C.-P. Ma, Y. Maan, D. R. Madison, R. A. Main, R. N. Manchester, R. Mandow, M. A. Mattson, A. McEwen, J. W. McKee, M. A. McLaughlin, N. McMann, B. W. Meyers, P. M. Meyers, M. B. Mickaliger, M. Miles, C. M. F. Mingarelli, A. Mitridate, P. Natarajan, R. S. Nathan, C. Ng, D. J. Nice, I. C. Niţu, K. Nobleson, S. K. Ocker, K. D. Olum, S. Osłowski, A. K. Paladi, A. Parthasarathy, T. T. Pennucci, B. B. P. Perera, D. Perrodin, A. Petiteau, P. Petrov, N. S. Pol, N. K. Porayko, A. Possenti, T. Prabu, H. Quelquejay Leclere, H. A. Radovan, P. Rana, S. M. Ransom, P. S. Ray, D. J. Reardon, A. F. Rogers, J. D. Romano, C. J. Russell, A. Samajdar, S. A. Sanidas, S. C. Sardesai, A. Schmiedekamp, C. Schmiedekamp, K. Schmitz, L. Schult, A. Sesana, G. Shaifullah, R. M. Shannon, B. J. Shapiro-Albert, X. Siemens, J. Simon, J. Singha, M. S. Siwek, L. Speri, R. Spiewak, A. Srivastava, I. H. Stairs, B. W. Stappers, D. R. Stinebring, K. Stovall, J. P. Sun, M. Surnis, S. C. Susarla, A. Susobhanan, J. K. Swiggum, K. Takahashi, P. Tarafdar, J. Taylor, S. R. Taylor, G. Theureau, E. Thrane, N. Thyagarajan, C. Tiburzi, L. Toomey, J. E. Turner, C. Unal, M. Vallisneri, E. van der Wateren, R. van Haasteren, A. Vecchio, V. Venkatraman Krishnan, J. P. W. Verbiest, S. J. Vigeland, H. M. Wahl, S. Wang, Q. Wang, C. A. Witt, J. Wang, L. Wang, K. E. Wayt, Z. Wu, O. Young, L. Zhang, S. Zhang, X.-J. Zhu, A. Zic, and The International Pulsar Timing Array Collaboration
Subjects: Gravitational waves, Pulsars, Astrophysics, QB460-466
Abstract: The Australian, Chinese, European, Indian, and North American pulsar timing array (PTA) collaborations recently reported, at varying levels, evidence for the presence of a nanohertz gravitational-wave background (GWB). Given that each PTA made different choices in modeling their data, we perform a comparison of the GWB and individual pulsar noise parameters across the results reported from the PTAs that constitute the International Pulsar Timing Array (IPTA). We show that despite making different modeling choices, there is no significant difference in the GWB parameters that are measured by the different PTAs, agreeing within 1 σ . The pulsar noise parameters are also consistent between different PTAs for the majority of the pulsars included in these analyses. We bridge the differences in modeling choices by adopting a standardized noise model for all pulsars and PTAs, finding that under this model there is a reduction in the tension in the pulsar noise parameters. As part of this reanalysis, we “extended” each PTA’s data set by adding extra pulsars that were not timed by that PTA. Under these extensions, we find better constraints on the GWB amplitude and a higher signal-to-noise ratio for the Hellings–Downs correlations. These extensions serve as a prelude to the benefits offered by a full combination of data across all pulsars in the IPTA, i.e., the IPTA’s Data Release 3, which will involve not just adding in additional pulsars but also including data from all three PTAs where any given pulsar is timed by more than a single PTA.
Published: 2024
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2. Modeling the Uncertainties of Solar System Ephemerides for Robust Gravitational-wave Searches with Pular-timing Arrays

Author: M Vallisneri, S R Taylor, J Simon, W M Folkner, R S Park, C Cutler, J A Ellis, T J W Lazio, S J Vigeland, K Aggarwal, Z Arzoumanian, P T Baker, A Brazier, P R Brook, S Burke-Spolaor, S Chatterjee, J M Cordes, N J Cornish, F Crawford, H T Cromartie, K Crowter, M DeCesar, P B Demorest, T Dolch, R D Ferdman, E C Ferrara, E Fonseca, N Garver-Daniels, P Gentile, D Good, J S Hazboun, A M Holgado, E A Huerta, K Islo, R Jennings, G Jones, M L Jones, D L Kaplan, L Z Kelley, J S Key, M T Lam, L Levin, D R Lorimer, J Luo, R S Lynch, D R Madison, M A McLaughlin, S T McWilliams, C M F Mingarelli, C Ng, D J Nice, T T Pennucci, N S Pol, S M Ransom, P S Ray, X Siemens, R Spiewak, I H Stairs, D R Stinebring, K Stovall, J K Swiggum, R van Haasteren, C A Witt, and W W Zhu
Subjects: Astrophysics
Abstract: The regularity of pulsar emissions becomes apparent once we reference the pulses’ times of arrivals to the inertial rest frame of the solar system. It follows that errors in the determination of Earthʼs position with respect to the solar system barycenter can appear as a time-correlated bias in pulsar-timing residual time series, affecting the searches for low-frequency gravitational waves performed with pulsar-timing arrays. Indeed, recent array data sets yield different gravitational-wave background upper limits and detection statistics when analyzed with different solar system ephemerides. Crucially, the ephemerides do not generally provide usable error representations. In this article, we describe the motivation, construction, and application of a physical model of solar system ephemeris uncertainties, which focuses on the degrees of freedom (Jupiterʼs orbital elements) most relevant to gravitational-wave searches with pulsar-timing arrays. This model, BAYESEPHEM, was used to derive ephemeris-robust results in NANOGravʼs 11 yr stochastic-background search, and it provides a foundation for future searches by NANOGrav and other consortia. The analysis and simulations reported here suggest that ephemeris modeling reduces the gravitational-wave sensitivity of the 11 yr data set and that this degeneracy will vanish with improved ephemerides and with pulsar-timing data sets that extend well beyond a single Jovian orbital period.
Published: 2020
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3. The NANOGrav 11 yr data set: Evolution of Gravitational-wave Background Statistics

Author: J S Hazboun, J Simon, S R Taylor, M T Lam, S J Vigeland, K Islo, J S Key, Z Arzoumanian, P T Baker, A Brazier, P R Brook, S Burke-Spolaor, S Chatterjee, J M Cordes, N J Cornish, F Crawford, K Crowter, H T Cromartie, M DeCesar, P B Demorest, T Dolch, J A Ellis, R D Ferdman, E Ferrara, E Fonseca, N Garver-Daniels, P Gentile, D Good, A M Holgado, E A Huerta, R Jennings, G Jones, M L Jones, A R Kaiser, D L Kaplan, L Z Kelley, T J W Lazio, L Levin, A N Lommen, D R Lorimer, J Luo, R S Lynch, D R Madison, M A McLaughlin, S T McWilliams, C M F Mingarelli, C Ng, D J Nice, T T Pennucci, N S Pol, S M Ransom, P S Ray, X Siemens, R Spiewak, I H Stairs, D R Stinebring, K Stovall, J K Swiggum, J E Turner, M Vallisneri, R van Haasteren, C A Witt, and W W Zhu
Subjects: Astronomy
Abstract: An ensemble of inspiraling supermassive black hole binaries should produce a stochastic background of very low frequency gravitational waves. This stochastic background is predicted to be a power law, with a gravitational-wave strain spectral index of −2/3, and it should be detectable by a network of precisely timed millisecond pulsars, widely distributed on the sky. This paper reports a new “time slicing” analysis of the 11 yr data release from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) using 34 millisecond pulsars. Methods to flag potential “false-positive” signatures are developed, including techniques to identify responsible pulsars. Mitigation strategies are then presented. We demonstrate how an incorrect noise model can lead to spurious signals, and we show how independently modeling noise across 30 Fourier components, spanning NANOGrav’s frequency range, effectively diagnoses and absorbs the excess power in gravitational-wave searches. This results in a nominal, and expected, progression of our gravitational-wave statistics. Additionally, we show that the first interstellar medium event in PSR J1713+0747 pollutes the common red-noise process with low spectral index noise, and we use a tailored noise model to remove these effects.
Published: 2020
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4. Searching for continuous Gravitational Waves in the second data release of the International Pulsar Timing Array

Author: Falxa, M, Babak, S, T Baker, P, Bécsy, B, Chalumeau, A, Chen, S, Chen, Z, J Cornish, N, Guillemot, L, S Hazboun, J, F Mingarelli, C, Parthasarathy, A, Petiteau, A, S Pol, N, Sesana, A, B Spolaor, S, R Taylor, S, Theureau, G, Vallisneri, M, J Vigeland, S, A Witt, C, Zhu, X, Antoniadis, J, Arzoumanian, Z, Bailes, M, R Bhat, N, Blecha, L, Brazier, A, R Brook, P, Caballero, N, D Cameron, A, A Casey-Clyde, J, Champion, D, Charisi, M, Chatterjee, S, Cognard, I, M Cordes, J, Crawford, F, T Cromartie, H, Crowter, K, Dai, S, E DeCesar, M, B Demorest, P, Desvignes, G, Dolch, T, Drachler, B, Feng, Y, C Ferrara, E, Fiore, W, Fonseca, E, Garver-Daniels, N, Glaser, J, Goncharov, B, C Good, D, Griessmeier, J, J Guo, Y, Gültekin, K, Hobbs, G, Hu, H, Islo, K, Jang, J, J Jennings, R, D Johnson, A, L Jones, M, Kaczmarek, J, R Kaiser, A, L Kaplan, D, Keith, M, Z Kelley, L, Kerr, M, S Key, J, Laal, N, T Lam, M, G Lamb, W, W Lazio, T, Liu, K, Liu, T, Luo, J, S Lynch, R, R Madison, D, Main, R, Manchester, R, Mcewen, A, Mckee, J, A McLaughlin, M, Ng, C, J Nice, D, Ocker, S, D Olum, K, Osłowski, S, T Pennucci, T, P Perera, B, Perrodin, D, Porayko, N, Possenti, A, Quelquejay-Leclere, H, M Ransom, S, S Ray, P, J Reardon, D, J Russell, C, Samajdar, A, Sarkissian, J, Schult, L, Shaifullah, G, M Shannon, R, J Shapiro-Albert, B, Siemens, X, J Simon, J, Siwek, M, L Smith, T, Speri, L, Spiewak, R, H Stairs, I, Stappers, B, R Stinebring, D, K Swiggum, J, Tiburzi, C, Turner, J, Vecchio, A, W Verbiest, J, Wahl, H, Q Wang, S, Wang, J, Wu, Z, Zhang, L, Zhang, S, Collaboration, I, M Falxa, S Babak, P T Baker, B Bécsy, A Chalumeau, S Chen, Z Chen, N J Cornish, L Guillemot, J S Hazboun, C M F Mingarelli, A Parthasarathy, A Petiteau, N S Pol, A Sesana, S B Spolaor, S R Taylor, G Theureau, M Vallisneri, S J Vigeland, C A Witt, X Zhu, J Antoniadis, Z Arzoumanian, M Bailes, N D R Bhat, L Blecha, A Brazier, P R Brook, N Caballero, A D Cameron, J A Casey-Clyde, D Champion, M Charisi, S Chatterjee, I Cognard, J M Cordes, F Crawford, H T Cromartie, K Crowter, S Dai, M E DeCesar, P B Demorest, G Desvignes, T Dolch, B Drachler, Y Feng, E C Ferrara, W Fiore, E Fonseca, N Garver-Daniels, J Glaser, B Goncharov, D C Good, J Griessmeier, Y J Guo, K Gültekin, G Hobbs, H Hu, K Islo, J Jang, R J Jennings, A D Johnson, M L Jones, J Kaczmarek, A R Kaiser, D L Kaplan, M Keith, L Z Kelley, M Kerr, J S Key, N Laal, M T Lam, W G Lamb, T J W Lazio, K Liu, T Liu, J Luo, R S Lynch, D R Madison, R Main, R Manchester, A McEwen, J McKee, M A McLaughlin, C Ng, D J Nice, S Ocker, K D Olum, S Osłowski, T T Pennucci, B B P Perera, D Perrodin, N Porayko, A Possenti, H Quelquejay-Leclere, S M Ransom, P S Ray, D J Reardon, C J Russell, A Samajdar, J Sarkissian, L Schult, G Shaifullah, R M Shannon, B J Shapiro-Albert, X Siemens, J J Simon, M Siwek, T L Smith, L Speri, R Spiewak, I H Stairs, B Stappers, D R Stinebring, J K Swiggum, C Tiburzi, J Turner, A Vecchio, J P W Verbiest, H Wahl, S Q Wang, J Wang, Z Wu, L Zhang, S Zhang, IPTA Collaboration, Falxa, M, Babak, S, T Baker, P, Bécsy, B, Chalumeau, A, Chen, S, Chen, Z, J Cornish, N, Guillemot, L, S Hazboun, J, F Mingarelli, C, Parthasarathy, A, Petiteau, A, S Pol, N, Sesana, A, B Spolaor, S, R Taylor, S, Theureau, G, Vallisneri, M, J Vigeland, S, A Witt, C, Zhu, X, Antoniadis, J, Arzoumanian, Z, Bailes, M, R Bhat, N, Blecha, L, Brazier, A, R Brook, P, Caballero, N, D Cameron, A, A Casey-Clyde, J, Champion, D, Charisi, M, Chatterjee, S, Cognard, I, M Cordes, J, Crawford, F, T Cromartie, H, Crowter, K, Dai, S, E DeCesar, M, B Demorest, P, Desvignes, G, Dolch, T, Drachler, B, Feng, Y, C Ferrara, E, Fiore, W, Fonseca, E, Garver-Daniels, N, Glaser, J, Goncharov, B, C Good, D, Griessmeier, J, J Guo, Y, Gültekin, K, Hobbs, G, Hu, H, Islo, K, Jang, J, J Jennings, R, D Johnson, A, L Jones, M, Kaczmarek, J, R Kaiser, A, L Kaplan, D, Keith, M, Z Kelley, L, Kerr, M, S Key, J, Laal, N, T Lam, M, G Lamb, W, W Lazio, T, Liu, K, Liu, T, Luo, J, S Lynch, R, R Madison, D, Main, R, Manchester, R, Mcewen, A, Mckee, J, A McLaughlin, M, Ng, C, J Nice, D, Ocker, S, D Olum, K, Osłowski, S, T Pennucci, T, P Perera, B, Perrodin, D, Porayko, N, Possenti, A, Quelquejay-Leclere, H, M Ransom, S, S Ray, P, J Reardon, D, J Russell, C, Samajdar, A, Sarkissian, J, Schult, L, Shaifullah, G, M Shannon, R, J Shapiro-Albert, B, Siemens, X, J Simon, J, Siwek, M, L Smith, T, Speri, L, Spiewak, R, H Stairs, I, Stappers, B, R Stinebring, D, K Swiggum, J, Tiburzi, C, Turner, J, Vecchio, A, W Verbiest, J, Wahl, H, Q Wang, S, Wang, J, Wu, Z, Zhang, L, Zhang, S, Collaboration, I, M Falxa, S Babak, P T Baker, B Bécsy, A Chalumeau, S Chen, Z Chen, N J Cornish, L Guillemot, J S Hazboun, C M F Mingarelli, A Parthasarathy, A Petiteau, N S Pol, A Sesana, S B Spolaor, S R Taylor, G Theureau, M Vallisneri, S J Vigeland, C A Witt, X Zhu, J Antoniadis, Z Arzoumanian, M Bailes, N D R Bhat, L Blecha, A Brazier, P R Brook, N Caballero, A D Cameron, J A Casey-Clyde, D Champion, M Charisi, S Chatterjee, I Cognard, J M Cordes, F Crawford, H T Cromartie, K Crowter, S Dai, M E DeCesar, P B Demorest, G Desvignes, T Dolch, B Drachler, Y Feng, E C Ferrara, W Fiore, E Fonseca, N Garver-Daniels, J Glaser, B Goncharov, D C Good, J Griessmeier, Y J Guo, K Gültekin, G Hobbs, H Hu, K Islo, J Jang, R J Jennings, A D Johnson, M L Jones, J Kaczmarek, A R Kaiser, D L Kaplan, M Keith, L Z Kelley, M Kerr, J S Key, N Laal, M T Lam, W G Lamb, T J W Lazio, K Liu, T Liu, J Luo, R S Lynch, D R Madison, R Main, R Manchester, A McEwen, J McKee, M A McLaughlin, C Ng, D J Nice, S Ocker, K D Olum, S Osłowski, T T Pennucci, B B P Perera, D Perrodin, N Porayko, A Possenti, H Quelquejay-Leclere, S M Ransom, P S Ray, D J Reardon, C J Russell, A Samajdar, J Sarkissian, L Schult, G Shaifullah, R M Shannon, B J Shapiro-Albert, X Siemens, J J Simon, M Siwek, T L Smith, L Speri, R Spiewak, I H Stairs, B Stappers, D R Stinebring, J K Swiggum, C Tiburzi, J Turner, A Vecchio, J P W Verbiest, H Wahl, S Q Wang, J Wang, Z Wu, L Zhang, S Zhang, and IPTA Collaboration
Abstract: The International Pulsar Timing Array 2nd data release is the combination of data sets from worldwide collaborations. In this study, we search for continuous waves: gravitational wave signals produced by individual supermassive black hole binaries in the local universe. We consider binaries on circular orbits and neglect the evolution of orbital frequency over the observational span. We find no evidence for such signals and set sky averaged 95 per cent upper limits on their amplitude h95. The most sensitive frequency is 10 nHz with h95 = 9.1 × 10-15. We achieved the best upper limit to date at low and high frequencies of the PTA band thanks to improved effective cadence of observations. In our analysis, we have taken into account the recently discovered common red noise process, which has an impact at low frequencies. We also find that the peculiar noise features present in some pulsars data must be taken into account to reduce the false alarm. We show that using custom noise models is essential in searching for continuous gravitational wave signals and setting the upper limit.
Published: 2023

5. The International Pulsar Timing Array: Second Data Release

Author: B B P Perara, M E DeCesar, P B Demorest, M Kerr, L Lentati, D J Nice, S Oslowski, S M Ransom, M J Keith, Z Arzoumanian, M Bailes, P T Baker, C G Bassa, NDR Bhat, A Brazier, M Burgay, S Burke-Spolaor, R N Caballero, D J Champion, S Chatterjee, S Chen, I Cognard, J M Cordes, K Crowter, S Dai, G Desvignes, T Dolch, R D Ferdman, E C Ferrara, E Fonseca, J M Goldstein, E Graikou, L Guillemot, J S Hazboun, G Hobbs, H Hu, K Islo, G H Janssen, R Karuppusam, M Kramer, M T Lam, K J Lee, K Liu, J Luo, A G Lyne, R N Manchester, J W McKee, M A McLaughlin, C M F Mingarelli, A P Parthasarathy, T T Pennucci, D Perrodin, A Possenti, D J Reardon, C J Russell, S A Sanidas, A Sesana, G Shaifullah, R M Shannon, X Siemens, J Simon, R Spiewak, I H Stairs, B W Stappers, J K Swiggum, S R Taylor, G Theureau, C Tiburzi, M Vallisneri, A Vecchio, J B Wang, S B Zhang, L Zhang, W W Zhu, and X J Zhu
Subjects: Astronomy
Abstract: In this paper, we describe the International Pulsar Timing Array second data release, which includes recent pulsar timing data obtained by three regional consortia: the European Pulsar Timing Array, the North American Nanohertz Observatory for Gravitational Waves, and the Parkes Pulsar Timing Array. We analyse and where possible combine high-precision timing data for 65 millisecond pulsars which are regularly observed by these groups. A basic noise analysis, including the processes which are both correlated and uncorrelated in time, provides noise models and timing ephemerides for the pulsars. We find that the timing precisions of pulsars are generally improved compared to the previous data release, mainly due to the addition of new data in the combination. The main purpose of this work is to create the most up-to-date IPTA data release. These data are publicly available for searches for low-frequency gravitational waves and other pulsar science.
Published: 2019
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6. The International Pulsar Timing Array second data release: Search for an isotropic gravitational wave background

Author: J Antoniadis, Z Arzoumanian, S Babak, M Bailes, A-S Bak Nielsen, P T Baker, C G Bassa, B Bécsy, A Berthereau, M Bonetti, A Brazier, P R Brook, M Burgay, S Burke-Spolaor, R N Caballero, J A Casey-Clyde, A Chalumeau, D J Champion, M Charisi, S Chatterjee, S Chen, I Cognard, J M Cordes, N J Cornish, F Crawford, H T Cromartie, K Crowter, S Dai, M E DeCesar, P B Demorest, G Desvignes, T Dolch, B Drachler, M Falxa, E C Ferrara, W Fiore, E Fonseca, J R Gair, N Garver-Daniels, B Goncharov, D C Good, E Graikou, L Guillemot, Y J Guo, J S Hazboun, G Hobbs, H Hu, K Islo, G H Janssen, R J Jennings, A D Johnson, M L Jones, A R Kaiser, D L Kaplan, R Karuppusamy, M J Keith, L Z Kelley, M Kerr, J S Key, M Kramer, M T Lam, W G Lamb, T J W Lazio, K J Lee, L Lentati, K Liu, J Luo, R S Lynch, A G Lyne, D R Madison, R A Main, R N Manchester, A McEwen, J W McKee, M A McLaughlin, M B Mickaliger, C M F Mingarelli, C Ng, D J Nice, S Osłowski, A Parthasarathy, T T Pennucci, B B P Perera, D Perrodin, A Petiteau, N S Pol, N K Porayko, A Possenti, S M Ransom, P S Ray, D J Reardon, C J Russell, A Samajdar, L M Sampson, S Sanidas, J M Sarkissian, K Schmitz, L Schult, A Sesana, G Shaifullah, R M Shannon, B J Shapiro-Albert, X Siemens, J Simon, T L Smith, L Speri, R Spiewak, I H Stairs, B W Stappers, D R Stinebring, J K Swiggum, S R Taylor, G Theureau, C Tiburzi, M Vallisneri, E van der Wateren, A Vecchio, J P W Verbiest, S J Vigeland, H Wahl, J B Wang, J Wang, L Wang, C A Witt, S Zhang, X J Zhu, Antoniadis, J, Arzoumanian, Z, Babak, S, Bailes, M, Bak Nielsen, A, Baker, P, Bassa, C, Becsy, B, Berthereau, A, Bonetti, M, Brazier, A, Brook, P, Burgay, M, Burke-Spolaor, S, Caballero, R, Casey-Clyde, J, Chalumeau, A, Champion, D, Charisi, M, Chatterjee, S, Chen, S, Cognard, I, Cordes, J, Cornish, N, Crawford, F, Cromartie, H, Crowter, K, Dai, S, Decesar, M, Demorest, P, Desvignes, G, Dolch, T, Drachler, B, Falxa, M, Ferrara, E, Fiore, W, Fonseca, E, Gair, J, Garver-Daniels, N, Goncharov, B, Good, D, Graikou, E, Guillemot, L, Guo, Y, Hazboun, J, Hobbs, G, Hu, H, Islo, K, Janssen, G, Jennings, R, Johnson, A, Jones, M, Kaiser, A, Kaplan, D, Karuppusamy, R, Keith, M, Kelley, L, Kerr, M, Key, J, Kramer, M, Lam, M, Lamb, W, Lazio, T, Lee, K, Lentati, L, Liu, K, Luo, J, Lynch, R, Lyne, A, Madison, D, Main, R, Manchester, R, Mcewen, A, Mckee, J, Mclaughlin, M, Mickaliger, M, Mingarelli, C, Ng, C, Nice, D, Oslowski, S, Parthasarathy, A, Pennucci, T, Perera, B, Perrodin, D, Petiteau, A, Pol, N, Porayko, N, Possenti, A, Ransom, S, Ray, P, Reardon, D, Russell, C, Samajdar, A, Sampson, L, Sanidas, S, Sarkissian, J, Schmitz, K, Schult, L, Sesana, A, Shaifullah, G, Shannon, R, Shapiro-Albert, B, Siemens, X, Simon, J, Smith, T, Speri, L, Spiewak, R, Stairs, I, Stappers, B, Stinebring, D, Swiggum, J, Taylor, S, Theureau, G, Tiburzi, C, Vallisneri, M, Van Der Wateren, E, Vecchio, A, Verbiest, J, Vigeland, S, Wahl, H, Wang, J, Wang, L, Witt, C, Zhang, S, Zhu, X, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), 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), Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire Univers et Théories (LUTH (UMR_8102)), ANR-18-CE31-0015,PTA-France,Recherche d'ondes gravitationnelles avec un réseau de pulsars en France(2018), ITA, USA, GBR, FRA, DEU, AUS, CAN, GRC, NLD, CHN, RUS, CHE, and HUN
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), astro-ph.HE, [PHYS]Physics [physics], Astrophysics and Astronomy, Astronomy, FOS: Physical sciences, Astronomy and Astrophysics, methods: Data analysi, pulsars: General, methods: data analysis, gravitational waves, Space and Planetary Science, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), gravitational wave, astro-ph.IM
Abstract: We searched for an isotropic stochastic gravitational wave background in the second data release of the International Pulsar Timing Array, a global collaboration synthesizing decadal-length pulsar-timing campaigns in North America, Europe, and Australia. In our reference search for a power law strain spectrum of the form $h_c = A(f/1\,\mathrm{yr}^{-1})^{\alpha}$, we found strong evidence for a spectrally-similar low-frequency stochastic process of amplitude $A = 3.8^{+6.3}_{-2.5}\times10^{-15}$ and spectral index $\alpha = -0.5 \pm 0.5$, where the uncertainties represent 95\% credible regions, using information from the auto- and cross-correlation terms between the pulsars in the array. For a spectral index of $\alpha = -2/3$, as expected from a population of inspiralling supermassive black hole binaries, the recovered amplitude is $A = 2.8^{+1.2}_{-0.8}\times10^{-15}$. Nonetheless, no significant evidence of the Hellings-Downs correlations that would indicate a gravitational-wave origin was found. We also analyzed the constituent data from the individual pulsar timing arrays in a consistent way, and clearly demonstrate that the combined international data set is more sensitive. Furthermore, we demonstrate that this combined data set produces comparable constraints to recent single-array data sets which have more data than the constituent parts of the combination. Future international data releases will deliver increased sensitivity to gravitational wave radiation, and significantly increase the detection probability., 17 pages, 12 figures, accepted in MNRAS
Published: 2022

7. Multimessenger gravitational-wave searches with pulsar timing arrays: Application to 3C 66B using the NANOGrav 11-year data set

Author: Maria Charisi, Ryan S. Lynch, Daniel R. Stinebring, David J. Nice, Timothy Dolch, Justin A. Ellis, Paul Demorest, Weiwei Zhu, Dustin R. Madison, Jing Luo, Peter A. Gentile, Jeffrey S. Hazboun, Maura McLaughlin, K. Islo, Nathan Garver-Daniels, Scott M. Ransom, Rodney D. Elliott, Nihan Pol, Stephen Taylor, Ingrid H. Stairs, H. Thankful Cromartie, Fronefield Crawford, Michael T. Lam, Timothy T. Pennucci, Joseph Simon, Michele Vallisneri, James M. Cordes, Luke Zoltan Kelley, Andrew R. Kaiser, Shami Chatterjee, Kevin Stovall, Joseph K. Swiggum, David L. Kaplan, Cherry Ng, Ross J. Jennings, Elizabeth C. Ferrara, Paul R. Brook, Xavier Siemens, Chiara M. F. Mingarelli, Joey Shapiro Key, Sarah Burke-Spolaor, Adam Brazier, Megan E. DeCesar, Caitlin A. Witt, Emmanuel Fonseca, Brent J. Shapiro-Albert, Paul T. Baker, Neil J. Cornish, Bence Bécsy, Kathryn Crowter, Megan L. Jones, Paul S. Ray, Renée Spiewak, Deborah C. Good, Zaven Arzoumanian, Lina Levin, T. Joseph W. Lazio, Robert D. Ferdman, and Sarah J. Vigeland
Subjects: Physics, Supermassive black hole, Active galactic nucleus, 010504 meteorology & atmospheric sciences, Gravitational wave, Astrophysics::High Energy Astrophysical Phenomena, Binary number, Astronomy and Astrophysics, Astrophysics, Orbital period, 01 natural sciences, Galaxy, Pulsar timing array, Pulsar, Space and Planetary Science, 0103 physical sciences, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences
Abstract: When galaxies merge, the supermassive black holes in their centers may form binaries and emit low-frequency gravitational radiation in the process. In this paper, we consider the galaxy 3C 66B, which was used as the target of the first multimessenger search for gravitational waves. Due to the observed periodicities present in the photometric and astrometric data of the source, it has been theorized to contain a supermassive black hole binary. Its apparent 1.05-year orbital period would place the gravitational-wave emission directly in the pulsar timing band. Since the first pulsar timing array study of 3C 66B, revised models of the source have been published, and timing array sensitivities and techniques have improved dramatically. With these advances, we further constrain the chirp mass of the potential supermassive black hole binary in 3C 66B to less than (1.65 ± 0.02) × 109 M ⊙ using data from the NANOGrav 11-year data set. This upper limit provides a factor of 1.6 improvement over previous limits and a factor of 4.3 over the first search done. Nevertheless, the most recent orbital model for the source is still consistent with our limit from pulsar timing array data. In addition, we are able to quantify the improvement made by the inclusion of source properties gleaned from electromagnetic data over “blind” pulsar timing array searches. With these methods, it is apparent that it is not necessary to obtain exact a priori knowledge of the period of a binary to gain meaningful astrophysical inferences.
Published: 2020

8. NANOGrav 11 yr Data Set: Evolution of Gravitational-wave Background Statistics

Author: Lina Levin, Scott M. Ransom, J. E. Turner, Jing Luo, D. R. Stinebring, I. H. Stairs, D. R. Lorimer, Peter A. Gentile, E. C. Ferrara, Joseph K. Swiggum, Paul Demorest, Deborah C. Good, A. M. Holgado, Adam Brazier, D. R. Madison, Robert D. Ferdman, R. van Haasteren, Paul R. Brook, Sarah Burke-Spolaor, J. M. Cordes, H. T. Cromartie, K. Islo, M. E. DeCesar, Fronefield Crawford, Nihan Pol, M. L. Jones, Luke Zoltan Kelley, Kevin Stovall, Timothy Dolch, N. Garver-Daniels, Andrea N. Lommen, Kathryn Crowter, Caitlin A. Witt, Andrew R. Kaiser, Paul S. Ray, E. A. Huerta, Sourav Chatterjee, Paul T. Baker, Cherry Ng, G. Jones, Xavier Siemens, David L. Kaplan, Neil J. Cornish, Ross J. Jennings, Joseph Simon, Michael T. Lam, Stephen Taylor, Joey Shapiro Key, Emmanuel Fonseca, Zaven Arzoumanian, Maura McLaughlin, Michele Vallisneri, Chiara M. F. Mingarelli, T. J. W. Lazio, R. S. Lynch, Sarah J. Vigeland, Sean T. McWilliams, David J. Nice, Timothy T. Pennucci, R. Spiewak, Wenbai Zhu, Jeffrey S. Hazboun, and J. A. Ellis
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Spectral index, Supermassive black hole, 010308 nuclear & particles physics, Gravitational wave, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, General Relativity and Quantum Cosmology, Gravitational wave background, Pulsar, 13. Climate action, Space and Planetary Science, Colors of noise, Millisecond pulsar, 0103 physical sciences, Statistics, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Noise (radio)
Abstract: An ensemble of inspiraling supermassive black hole binaries should produce a stochastic background of very low frequency gravitational waves. This stochastic background is predicted to be a power law, with a spectral index of -2/3, and it should be detectable by a network of precisely timed millisecond pulsars, widely distributed on the sky. This paper reports a new "time slicing" analysis of the 11-year data release from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) using 34 millisecond pulsars. Methods to flag potential "false positive" signatures are developed, including techniques to identify responsible pulsars. Mitigation strategies are then presented. We demonstrate how an incorrect noise model can lead to spurious signals, and show how independently modeling noise across 30 Fourier components, spanning NANOGrav's frequency range, effectively diagnoses and absorbs the excess power in gravitational-wave searches. This results in a nominal, and expected, progression of our gravitational-wave statistics. Additionally we show that the first interstellar medium event in PSR J1713+0747 pollutes the common red noise process with low-spectral index noise, and use a tailored noise model to remove these effects., 14 pages, 13 figures, fixed typo in abstract of earlier version
Published: 2020

9. The NANOGrav 11 yr Data Set: Limits on Gravitational Wave Memory

Author: A. M. Holgado, K. Islo, Timothy Dolch, Glenn Jones, Nihan Pol, Paul R. Brook, Renée Spiewak, R. van Haasteren, Stephen Taylor, Ryan S. Lynch, Scott M. Ransom, Megan E. DeCesar, Caitlin A. Witt, J. Luo, Adam Brazier, Emmanuel Fonseca, Sean T. McWilliams, Cherry Ng, Peter A. Gentile, Elizabeth C. Ferrara, Chiara M. F. Mingarelli, David J. Nice, Timothy T. Pennucci, Xavier Siemens, Ross J. Jennings, Robert D. Ferdman, David L. Kaplan, Paul Demorest, Duncan R. Lorimer, Fronefield Crawford, Shami Chatterjee, Kevin Stovall, Kathryn Crowter, Zaven Arzoumanian, Neil J. Cornish, Megan L. Jones, Paul S. Ray, E. A. Huerta, N. Garver-Daniels, Joseph Simon, Jeffrey S. Hazboun, Daniel R. Stinebring, Lina Levin, P. T. Baker, Joey Shapiro Key, Sarah Burke-Spolaor, Maura McLaughlin, Michele Vallisneri, James M. Cordes, Michael T. Lam, Wenbai Zhu, Deborah C. Good, Joseph K. Swiggum, H. T. Cromartie, Sarah J. Vigeland, D. R. Madison, Kshitij Aggarwal, J. A. Ellis, Ingrid H. Stairs, Luke Zoltan Kelley, and T. J. W. Lazio
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Supermassive black hole, 010504 meteorology & atmospheric sciences, Gravitational wave, media_common.quotation_subject, FOS: Physical sciences, Astronomy and Astrophysics, General Relativity and Quantum Cosmology (gr-qc), Astrophysics, 01 natural sciences, General Relativity and Quantum Cosmology, Gravitation, Amplitude, Pulsar, 13. Climate action, Space and Planetary Science, Millisecond pulsar, Observatory, Sky, 0103 physical sciences, Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, media_common
Abstract: The mergers of supermassive black hole binaries (SMBHBs) promise to be incredible sources of gravitational waves (GWs). While the oscillatory part of the merger gravitational waveform will be outside the frequency sensitivity range of pulsar timing arrays (PTAs), the non-oscillatory GW memory effect is detectable. Further, any burst of gravitational waves will produce GW memory, making memory a useful probe of unmodeled exotic sources and new physics. We searched the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) 11-year data set for GW memory. This dataset is sensitive to very low frequency GWs of $\sim3$ to $400$ nHz (periods of $\sim11$ yr $-$ $1$ mon). Finding no evidence for GWs, we placed limits on the strain amplitude of GW memory events during the observation period. We then used the strain upper limits to place limits on the rate of GW memory causing events. At a strain of $2.5\times10^{-14}$, corresponding to the median upper limit as a function of source sky position, we set a limit on the rate of GW memory events at $, Comment: 10 pages, 6 figures, submitted to ApJ
Published: 2020

10. The NANOGrav 12.5-year Data Set: Wideband Timing of 47 Millisecond Pulsars

Author: Cherry Ng, Yhamil Garcia, Xavier Siemens, Jing Luo, Robert D. Ferdman, Timothy Dolch, Jordan A. Gusdorff, Paul Demorest, Joseph Simon, Duncan R. Lorimer, Joshua Ramette, Luke Zoltan Kelley, Keeisi Caballero, Emmanuel Fonseca, Justin A. Ellis, Megan E. Decesar, Fronefield Crawford, Scott M. Ransom, David J. Nice, Maura McLaughlin, Shami Chatterjee, Ryan S. Lynch, Megan L. Jones, Kevin Stovall, Cody Jessup, Paul S. Ray, Jeffrey S. Hazboun, D. R. Madison, Joey Shapiro Key, Daniel Halmrast, Chiara M. F. Mingarelli, Daniel R. Stinebring, Caitlin A. Witt, Andrew R. Kaiser, Timothy T. Pennucci, Peter A. Gentile, Renée Spiewak, Faisal Alam, Michael T. Lam, Rachel L. Chamberlain, Michael Tripepi, Paul T. Baker, Harsha Blumer, David L. Kaplan, Ross J. Jennings, Benjamin M. X. Nguyen, Deborah C. Good, Stephen Taylor, Zaven Arzoumanian, James M. Cordes, Richard Camuccio, Neil J. Cornish, Keith E. Bohler, Sarah Burke-Spolaor, K. Islo, Paul R. Brook, Elizabeth C. Ferrara, H. Thankful Cromartie, Brent J. Shapiro-Albert, Michele Vallisneri, Nihan Pol, William Fiore, Weiwei Zhu, Joseph K. Swiggum, T. Joseph W. Lazio, Kaleb Maraccini, Adam Brazier, Nathan Garver-Daniels, Sarah J. Vigeland, and Ingrid H. Stairs
Subjects: Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, Gravitational wave, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, 01 natural sciences, Data set, Pulsar timing array, Narrowband, Pulsar, Space and Planetary Science, Observatory, Millisecond pulsar, 0103 physical sciences, Wideband, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: We present a new analysis of the profile data from the 47 millisecond pulsars comprising the 12.5-year data set of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), which is presented in a parallel paper (Alam et al. 2021a; NG12.5). Our reprocessing is performed using "wideband" timing methods, which use frequency-dependent template profiles, simultaneous time-of-arrival (TOA) and dispersion measure (DM) measurements from broadband observations, and novel analysis techniques. In particular, the wideband DM measurements are used to constrain the DM portion of the timing model. We compare the ensemble timing results to NG12.5 by examining the timing residuals, timing models, and noise model components. There is a remarkable level of agreement across all metrics considered. Our best-timed pulsars produce encouragingly similar results to those from NG12.5. In certain cases, such as high-DM pulsars with profile broadening, or sources that are weak and scintillating, wideband timing techniques prove to be beneficial, leading to more precise timing model parameters by 10-15%. The high-precision, multi-band measurements of several pulsars indicate frequency-dependent DMs. Compared to the narrowband analysis in NG12.5, the TOA volume is reduced by a factor of 33, which may ultimately facilitate computational speed-ups for complex pulsar timing array analyses. This first wideband pulsar timing data set is a stepping stone, and its consistent results with NG12.5 assure us that such data sets are appropriate for gravitational wave analyses., Comment: 62 pages, 55 figures, 5 tables, 3 appendices. Data available at http://nanograv.org/data/ and via DOI 10.5281/zenodo.4312887
Published: 2020
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11. The NANOGrav 12.5 yr Data Set: Observations and Narrowband Timing of 47 Millisecond Pulsars

Author: Benjamin M. X. Nguyen, Yhamil Garcia, Jordan A. Gusdorff, Paul R. Brook, Chiara M. F. Mingarelli, Rachel L. Chamberlain, Paul Demorest, Scott M. Ransom, Fronefield Crawford, Timothy Dolch, Stephen Taylor, Luke Zoltan Kelley, Sarah Burke-Spolaor, Joshua Ramette, Shami Chatterjee, Kevin Stovall, Elizabeth C. Ferrara, Robert D. Ferdman, Nathan Garver-Daniels, William Fiore, Peter A. Gentile, T. Joseph W. Lazio, Harsha Blumer, Cody Jessup, Kaleb Maraccini, Caitlin A. Witt, Joseph K. Swiggum, David L. Kaplan, Daniel Halmrast, Paul S. Ray, H. Thankful Cromartie, Brent J. Shapiro-Albert, James M. Cordes, D. R. Madison, Cherry Ng, Daniel R. Stinebring, Sarah J. Vigeland, Joseph Simon, Renée Spiewak, Deborah C. Good, Xavier Siemens, Faisal Alam, Keith E. Bohler, Michael T. Lam, Ryan S. Lynch, Ingrid H. Stairs, Megan E. Decesar, Justin A. Ellis, Emmanuel Fonseca, Maura McLaughlin, Keeisi Caballero, Weiwei Zhu, Joey Shapiro Key, David J. Nice, Timothy T. Pennucci, Duncan R. Lorimer, Paul T. Baker, Richard Camuccio, Neil J. Cornish, Ross J. Jennings, Jing Luo, Andrew R. Kaiser, Megan L. Jones, K. Islo, Jeffrey S. Hazboun, Nihan Pol, Michael Tripepi, Adam Brazier, Zaven Arzoumanian, and Michele Vallisneri
Subjects: Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, Gravitational wave, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Astrometry, Astrophysics, 01 natural sciences, Shapiro delay, Binary pulsar, Pulsar, Space and Planetary Science, Millisecond pulsar, 0103 physical sciences, Arecibo Observatory, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Radio astronomy
Abstract: We present time-of-arrival (TOA) measurements and timing models of 47 millisecond pulsars (MSPs) observed from 2004 to 2017 at the Arecibo Observatory and the Green Bank Telescope by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav). The observing cadence was three to four weeks for most pulsars over most of this time span, with weekly observations of six sources. These data were collected for use in low-frequency gravitational wave searches and for other astrophysical purposes. We detail our observational methods and present a set of TOA measurements, based on "narrowband" analysis, in which many TOAs are calculated within narrow radio-frequency bands for data collected simultaneously across a wide bandwidth. A separate set of "wideband" TOAs will be presented in a companion paper. We detail a number of methodological changes compared to our previous work which yield a cleaner and more uniformly processed data set. Our timing models include several new astrometric and binary pulsar measurements, including previously unpublished values for the parallaxes of PSRs J1832-0836 and J2322+2057, the secular derivatives of the projected semi-major orbital axes of PSRs J0613-0200 and J2229+2643, and the first detection of the Shapiro delay in PSR J2145-0750. We report detectable levels of red noise in the time series for 14 pulsars. As a check on timing model reliability, we investigate the stability of astrometric parameters across data sets of different lengths. We report flux density measurements for all pulsars observed. Searches for stochastic and continuous gravitational waves using these data will be subjects of forthcoming publications., Comment: 54 pages, 52 figures, 7 tables, 1 appendix. Data are available at http://nanograv.org/data/ and via the DOI 10.5281/zenodo.4312297
Published: 2020
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12. The International Pulsar Timing Array: Second data release

Author: Sarah Burke-Spolaor, Robert D. Ferdman, Stephen Taylor, Lei Zhang, Janna Goldstein, Caterina Tiburzi, Alberto Sesana, Ingrid H. Stairs, Elizabeth C. Ferrara, N. D. R. Bhat, Benetge Perera, Aditya Parthasarathy, Michael Kramer, H. Hu, Richard N. Manchester, Joseph Simon, L. Lentati, Matthew Kerr, Shi Dai, R. N. Caballero, Megan E. DeCesar, Paul Demorest, A. Possenti, Xing-Jiang Zhu, Kathryn Crowter, Weiwei Zhu, C. G. Bassa, Emmanuel Fonseca, Kejia Lee, Scott M. Ransom, Michael Keith, Stefan Oslowski, Chiara M. F. Mingarelli, D. J. Champion, Ramesh Karuppusamy, David J. Nice, Andrew Lyne, Timothy T. Pennucci, Timothy Dolch, J. K. Swiggum, Benjamin Stappers, K. Islo, Lucas Guillemot, Michele Vallisneri, J. B. Wang, X. Siemens, Gregory Desvignes, Gilles Theureau, James M. Cordes, Ismaël Cognard, Renée Spiewak, Siyuan Chen, Jing Luo, S. A. Sanidas, P. T. Baker, A. Brazier, Songbo Zhang, Alberto Vecchio, George Hobbs, Delphine Perrodin, Michael T. Lam, Jeffrey S. Hazboun, M. Burgay, Daniel J. Reardon, Zaven Arzoumanian, G. Shaifullah, J. W. McKee, Maura McLaughlin, Christopher J. Russell, Sourav Chatterjee, Kang Liu, Matthew Bailes, Gemma H. Janssen, Ryan Shannon, E. Graikou, 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)-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 d'Orléans (UO), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-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), 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), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Théories (LUTH (UMR_8102)), 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), Perera, B, Decesar, M, Demorest, P, Kerr, M, Lentati, L, Nice, D, Osłowski, S, Ransom, S, Keith, M, Arzoumanian, Z, Bailes, M, Baker, P, Bassa, C, Bhat, N, Brazier, A, Burgay, M, Burke-Spolaor, S, Caballero, R, Champion, D, Chatterjee, S, Chen, S, Cognard, I, Cordes, J, Crowter, K, Dai, S, Desvignes, G, Dolch, T, Ferdman, R, Ferrara, E, Fonseca, E, Goldstein, J, Graikou, E, Guillemot, L, Hazboun, J, Hobbs, G, Hu, H, Islo, K, Janssen, G, Karuppusamy, R, Kramer, M, Lam, M, Lee, K, Liu, K, Luo, J, Lyne, A, Manchester, R, Mckee, J, Mclaughlin, M, Mingarelli, C, Parthasarathy, A, Pennucci, T, Perrodin, D, Possenti, A, Reardon, D, Russell, C, Sanidas, S, Sesana, A, Shaifullah, G, Shannon, R, Siemens, X, Simon, J, Spiewak, R, Stairs, I, Stappers, B, Swiggum, J, Taylor, S, Theureau, G, Tiburzi, C, Vallisneri, M, Vecchio, A, Wang, J, Zhang, S, Zhang, L, Zhu, W, Zhu, X, Université d'Orléans (UO)-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)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Université de Franche-Comté (UFC)-Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Technologie de Belfort-Montbeliard (UTBM), PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS), and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Ephemeris, 01 natural sciences, Pulsar timing array, stars: neutron, neutron [stars], Pulsar, Millisecond pulsar, Observatory, pulsars: general, 0103 physical sciences, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Gravitational wave, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, methods: data analysis, European Pulsar Timing Array, gravitational waves, Space and Planetary Science, [SDU]Sciences of the Universe [physics], pulsars, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Noise (radio), Methods: data analysi
Abstract: In this paper, we describe the International Pulsar Timing Array second data release, which includes recent pulsar timing data obtained by three regional consortia: the European Pulsar Timing Array, the North American Nanohertz Observatory for Gravitational Waves, and the Parkes Pulsar Timing Array. We analyse and where possible combine high-precision timing data for 65 millisecond pulsars which are regularly observed by these groups. A basic noise analysis, including the processes which are both correlated and uncorrelated in time, provides noise models and timing ephemerides for the pulsars. We find that the timing precisions of pulsars are generally improved compared to the previous data release, mainly due to the addition of new data in the combination. The main purpose of this work is to create the most up-to-date IPTA data release. These data are publicly available for searches for low-frequency gravitational waves and other pulsar science., Comment: Submitted to MNRAS and in review, 23 pages, 5 figures
Published: 2019
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13. The NANOGrav 12.5 yr Data Set: Search for an Isotropic Stochastic Gravitational-wave Background

Author: Harsha Blumer, D. R. Madison, Ryan S. Lynch, Paul Demorest, Deborah C. Good, Paul R. Brook, Megan L. Jones, Renée Spiewak, Paul T. Baker, Nathan Garver-Daniels, Jeffrey S. Hazboun, Luke Zoltan Kelley, A. Miguel Holgado, Scott M. Ransom, Caitlin A. Witt, Neil J. Cornish, Nima Laal, Joseph Simon, Timothy T. Pennucci, Michele Vallisneri, Jing Luo, Siyuan Chen, Fronefield Crawford, Zaven Arzoumanian, Ross J. Jennings, Chiara M. F. Mingarelli, Joey Shapiro Key, Elizabeth C. Ferrara, Shami Chatterjee, Cherry Ng, Adam Brazier, Jerry P. Sun, Kevin Stovall, Sarah Burke-Spolaor, Sarah J. Vigeland, Xavier Siemens, James M. Cordes, William Fiore, Timothy Dolch, Joseph K. Swiggum, Peter A. Gentile, H. Thankful Cromartie, Brent J. Shapiro-Albert, Jacob E. Turner, Paul S. Ray, B. Bécsy, David J. Nice, David L. Kaplan, T. Joseph W. Lazio, Ingrid H. Stairs, K. Islo, Nihan Pol, Duncan R. Lorimer, Justin A. Ellis, Maura McLaughlin, Andrew R. Kaiser, Michael T. Lam, Megan E. DeCesar, Emmanuel Fonseca, Stephen Taylor, Daniel R. Stinebring, 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)-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 d'Orléans (UO), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-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), 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), NANOGrav, 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), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National d’Études Spatiales [Paris] (CNES)
Subjects: noise, gravitational radiation: stochastic, 010504 meteorology & atmospheric sciences, General relativity, Population, Astrophysics, Bayesian, 01 natural sciences, General Relativity and Quantum Cosmology, Gravitational wave background, Pulsar, Millisecond pulsar, 0103 physical sciences, general relativity, black hole, education, 010303 astronomy & astrophysics, pulsar, 0105 earth and related environmental sciences, [PHYS]Physics [physics], Physics, education.field_of_study, Gravitational wave, gravitational radiation: background, Astronomy and Astrophysics, solar system, Astrophysics - Astrophysics of Galaxies, observatory, Black hole, Amplitude, black hole: binary, [SDU]Sciences of the Universe [physics], Space and Planetary Science, correlation, slope, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], spectral, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: We search for an isotropic stochastic gravitational-wave background (GWB) in the $12.5$-year pulsar timing data set collected by the North American Nanohertz Observatory for Gravitational Waves. Our analysis finds strong evidence of a stochastic process, modeled as a power-law, with common amplitude and spectral slope across pulsars. The Bayesian posterior of the amplitude for an $f^{-2/3}$ power-law spectrum, expressed as the characteristic GW strain, has median $1.92 \times 10^{-15}$ and $5\%$--$95\%$ quantiles of $1.37$--$2.67 \times 10^{-15}$ at a reference frequency of $f_\mathrm{yr} = 1 ~\mathrm{yr}^{-1}$. The Bayes factor in favor of the common-spectrum process versus independent red-noise processes in each pulsar exceeds $10,000$. However, we find no statistically significant evidence that this process has quadrupolar spatial correlations, which we would consider necessary to claim a GWB detection consistent with general relativity. We find that the process has neither monopolar nor dipolar correlations, which may arise from, for example, reference clock or solar system ephemeris systematics, respectively. The amplitude posterior has significant support above previously reported upper limits; we explain this in terms of the Bayesian priors assumed for intrinsic pulsar red noise. We examine potential implications for the supermassive black hole binary population under the hypothesis that the signal is indeed astrophysical in nature., Comment: 25 pages, 14 figures, 5 tables, 3 appendices. Published in The Astrophysical Journal Letters. Please send any comments/questions to Joseph Simon (joe.simon@nanograv.org). Jupyter notebook tutorials and some MCMC chain files are available at https://github.com/nanograv/12p5yr_stochastic_analysis
Published: 2020

14. Noise-marginalized optimal statistic: A robust hybrid frequentist-Bayesian statistic for the stochastic gravitational-wave background in pulsar timing arrays

Author: Justin A. Ellis, K. Islo, Stephen Taylor, and Sarah J. Vigeland
Subjects: Physics, Supermassive black hole, Cosmology and Nongalactic Astrophysics (astro-ph.CO), 010308 nuclear & particles physics, Gravitational wave, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Estimator, General Relativity and Quantum Cosmology (gr-qc), Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, General Relativity and Quantum Cosmology, Gravitational wave background, Pulsar, Colors of noise, Frequentist inference, 0103 physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Statistic, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: Observations have revealed that nearly all galaxies contain supermassive black holes (SMBHs) at their centers. When galaxies merge, these SMBHs form SMBH binaries (SMBHBs) that emit low-frequency gravitational waves (GWs). The incoherent superposition of these sources produce a stochastic GW background (GWB) that can be observed by pulsar timing arrays (PTAs). The optimal statistic is a frequentist estimator of the amplitude of the GWB that specifically looks for the spatial correlations between pulsars induced by the GWB. In this paper, we introduce an improved method for computing the optimal statistic that marginalizes over the red noise in individual pulsars. We use simulations to demonstrate that this method more accurately determines the strength of the GWB, and we use the noise-marginalized optimal statistic to compare the significance of monopole, dipole, and Hellings-Downs (HD) spatial correlations and perform sky scrambles., 8 pages, 7 figures. Published in PRD
Published: 2018

15. The NANOGrav 11 Year Data Set:Pulsar-timing Constraints on the Stochastic Gravitational-wave Background

Author: Megan E. DeCesar, Renée Spiewak, Timothy Dolch, Timothy T. Pennucci, Emmanuel Fonseca, Alexander Rasskazov, D. R. Madison, Elizabeth C. Ferrara, Jing Luo, Justin A. Ellis, David L. Kaplan, William M. Folkner, V. M. Kaspi, B. Christy, Maura McLaughlin, T. J. W. Lazio, Neil J. Cornish, Weiwei Zhu, Ryan S. Park, P. T. Baker, Sean T. McWilliams, Joseph Simon, Glenn Jones, Stephen Taylor, Ryan S. Lynch, David J. Nice, Jeffrey S. Hazboun, Kathryn Crowter, Michael T. Lam, Paul S. Ray, E. A. Huerta, Peter A. Gentile, K. Islo, Daniel R. Stinebring, Nihan Pol, M. L. Jones, Chiara M. F. Mingarelli, Sarah Burke-Spolaor, Andrea N. Lommen, Roland Haas, Sarah J. Vigeland, Lina Levin, Robert D. Ferdman, S. J. Chamberlin, Fronefield Crawford, Joseph K. Swiggum, Shami Chatterjee, Kevin Stovall, Ingrid H. Stairs, H. Thankful Cromartie, Michele Vallisneri, James M. Cordes, Scott M. Ransom, R. van Haasteren, Adam Brazier, Cherry Ng, Xavier Siemens, Paul Demorest, Zaven Arzoumanian, N. Garver-Daniels, and Duncan R. Lorimer
Subjects: Stellar mass, Astrophysics::High Energy Astrophysical Phenomena, Population, FOS: Physical sciences, Astrophysics, General Relativity and Quantum Cosmology (gr-qc), Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, general [pulsars], General Relativity and Quantum Cosmology, Gravitational wave background, Pulsar timing array, Pulsar, 0103 physical sciences, data analysis [methods], ephemeredes, inflation, education, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), education.field_of_study, Supermassive black hole, 010308 nuclear & particles physics, Gravitational wave, supermassive black holes [quasars], Astronomy and Astrophysics, Quasar, 16. Peace & justice, Astrophysics - Astrophysics of Galaxies, gravitational waves, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Astrophysics - High Energy Astrophysical Phenomena
Abstract: We search for an isotropic stochastic gravitational-wave background (GWB) in the newly released $11$-year dataset from the North American Nanohertz Observatory for Gravitational Waves (NANOGrav). While we find no significant evidence for a GWB, we place constraints on a GWB from a population of supermassive black-hole binaries, cosmic strings, and a primordial GWB. For the first time, we find that the GWB upper limits and detection statistics are sensitive to the Solar System ephemeris (SSE) model used, and that SSE errors can mimic a GWB signal. We developed an approach that bridges systematic SSE differences, producing the first PTA constraints that are robust against SSE uncertainties. We thus place a $95\%$ upper limit on the GW strain amplitude of $A_\mathrm{GWB}, 21 pages, 12 figures, 9 tables. Published in The Astrophysical Journal. Please send any comments/questions to S. R. Taylor (srtaylor@caltech.edu)
Published: 2018

16. The NANOGrav 11-Year Data Set: Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries

Author: David L. Kaplan, Adam Brazier, Sarah Burke-Spolaor, Megan E. DeCesar, Emmanuel Fonseca, R. van Haasteren, Joseph Simon, Joey Shapiro Key, Robert D. Ferdman, Cherry Ng, Zaven Arzoumanian, Lina Levin, Peter A. Gentile, N. Garver-Daniels, Neil J. Cornish, Ryan S. Lynch, Chiara M. F. Mingarelli, A. M. Holgado, Xavier Siemens, Kathryn Crowter, Justin A. Ellis, Stephen Taylor, J. E. Turner, Weiwei Zhu, Caitlin A. Witt, Ingrid H. Stairs, Paul Demorest, T. J. W. Lazio, Paul S. Ray, Michele Vallisneri, Ross J. Jennings, K. Islo, E. A. Huerta, J. Luo, Luke Zoltan Kelley, Sean T. McWilliams, David J. Nice, Maura McLaughlin, D. R. Madison, Daniel R. Stinebring, James M. Cordes, Renée Spiewak, P. T. Baker, M. R. Brinson, Kshitij Aggarwal, Elizabeth C. Ferrara, Nihan Pol, M. L. Jones, Glenn Jones, Paul R. Brook, Timothy Dolch, Jeffrey S. Hazboun, Scott M. Ransom, Michael T. Lam, Joseph K. Swiggum, H. T. Cromartie, Fronefield Crawford, Duncan R. Lorimer, Shami Chatterjee, Kevin Stovall, Andrew R. Kaiser, Timothy T. Pennucci, and Sarah J. Vigeland
Subjects: 010504 meteorology & atmospheric sciences, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, General Relativity and Quantum Cosmology (gr-qc), 01 natural sciences, General Relativity and Quantum Cosmology, Pulsar, Observatory, 0103 physical sciences, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Physics, Supermassive black hole, Solar mass, Gravitational wave, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Virgo Cluster, Galaxy, Black hole, 13. Climate action, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: Observations indicate that nearly all galaxies contain supermassive black holes (SMBHs) at their centers. When galaxies merge, their component black holes form SMBH binaries (SMBHBs), which emit low-frequency gravitational waves (GWs) that can be detected by pulsar timing arrays (PTAs). We have searched the recently-released North American Nanohertz Observatory for Gravitational Waves (NANOGrav) 11-year data set for GWs from individual SMBHBs in circular orbits. As we did not find strong evidence for GWs in our data, we placed 95\% upper limits on the strength of GWs from such sources as a function of GW frequency and sky location. We placed a sky-averaged upper limit on the GW strain of $h_0 < 7.3(3) \times 10^{-15}$ at $f_\mathrm{gw}= 8$ nHz. We also developed a technique to determine the significance of a particular signal in each pulsar using ``dropout' parameters as a way of identifying spurious signals in measurements from individual pulsars. We used our upper limits on the GW strain to place lower limits on the distances to individual SMBHBs. At the most-sensitive sky location, we ruled out SMBHBs emitting GWs with $f_\mathrm{gw}= 8$ nHz within 120 Mpc for $\mathcal{M} = 10^9 \, M_\odot$, and within 5.5 Gpc for $\mathcal{M} = 10^{10} \, M_\odot$. We also determined that there are no SMBHBs with $\mathcal{M} > 1.6 \times 10^9 \, M_\odot$ emitting GWs in the Virgo Cluster. Finally, we estimated the number of potentially detectable sources given our current strain upper limits based on galaxies in Two Micron All-Sky Survey (2MASS) and merger rates from the Illustris cosmological simulation project. Only 34 out of 75,000 realizations of the local Universe contained a detectable source, from which we concluded it was unsurprising that we did not detect any individual sources given our current sensitivity to GWs., 10 pages, 11 figures. Accepted by Astrophysical Journal. Please send any comments/questions to S. J. Vigeland (vigeland@uwm.edu)
Published: 2018
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17. Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth

Author: Adrian J. Matthews, L. Molina-Bueno, D. Melo, David Walz, F. Suarez, Thomas Hebbeker, Sergio Dasso, T. Huege, A. Parra, Jeffrey Brack, Olaf Scholten, V. Pirronello, Humberto Ibarguen Salazar, F. Gate, Iuri Muniz Pepe, L. Tomankova, G. Navarra, C. A. Moura, T. Yamamoto, Brian Fick, Samo Stanič, van den Ad M Berg, C. Jarne, M. Prouza, J. Kleinfeller, A. Aab, L. Caramete, R. Mussa, J. J. Beatty, D. Pakk Selmi-Dei, R. Sato, A. C. Fauth, Kai Daumiller, Peter Schiffer, B. Vlcek, H. Dembinski, N. Fazzini, L. del Peral, P. Abreu, M. S. A. B. Leão, H. Lyberis, E.M. Holt, D. Ravignani, A. Saleh, Maria-Teresa Dova, R. Alves Batista, D. Kruppke-Hansen, O. Ravel, G. Yuan, Matias Tueros, D. Nosek, Johannes Schulz, A. van Vliet, V. Scherini, Carla Bonifazi, Jose A. Bellido, Daniel Kuempel, Carlos Escobar, S. Maldera, M. Pimenta, F. Diogo, M. Videla, G. Cocciolo, Luis A. Anchordoqui, Marcio Aparecido Muller, D. Maurizio, Richard Dallier, A. Nelles, B. Revenu, Sarka Wykes, Jaime Alvarez-Muñiz, Jing Zhou, J. C. Diaz, M. Risse, Julien Aublin, Alexandra Saftoiu, Jaime Rosado, Ivone F. M. Albuquerque, Ke Fang, M. Zimbres Silva, O. Kambeitz, R. M. de Almeida, F. Werner, Markus Ahlers, S. Riggi, T. Rossler, Eric Mayotte, M. Ave, M. Gómez Berisso, S. J. De Jong, Octavian Fratu, B. Wilczynska, J. D. Swain, E. Varela, T. Suomijaervi, N. Griffith, Lu Lu, N. T. Thao, J. Maller, S. J. Saffi, U. Froehlich, R. Cester, M. Avenier, J. Stapleton, M. Zavrtanik, B. Vargas Cárdenas, J. Pallotta, N. Kunka, G. Marsella, J. R. Vázquez, D. Garcia-Gamez, E. J. Quel, Michael Unger, M. Platino, M. Monasor, Iván Sidelnik, N. Scharf, P. Sanchez-Lucas, D. Harari, M. Buscemi, A. Curutiu, A. Lopez Agueera, A. Kaeaepae, M. Palatka, A. Insolia, M. Kleifges, D. Zavrtanik, I. A. Minaya, P. Heimann, R. C. Shellard, W. Docters, M. Will, K. Louedec, Mariangela Settimo, Ugo Giaccari, B. Keilhauer, Béatrice Fuchs, P. W. Younk, Niraj Dhital, M. Hrabovsky, Alexey Yushkov, Jörg R. Hörandel, G. Garilli, E. Kemp, Serguei Vorobiov, C. Hojvat, Francisco J. Blanco, Jan Ebr, J. Allen, S. J. Sciutto, R. Pesce, A. Weindl, I. Valiño, Xavier Bertou, V. Purrello, Paul Sommers, L. Nellen, Max Malacari, Markus Lauscher, A. Zepeda, A. Filevich, Alina Mihaela Badescu, A. Smialkowski, Dusan Mandat, Raul Sarmento, F. Gomez Albarracin, P. Gouffon, P. N. Dong, D. Monnier Ragaigne, O. A. Taborda, Piotr Homola, M. J. Cooper, John N. Matthews, C. Morello, R. M. Kieckhafer, Juan Moreno, J. Rautenberg, Yingchun Zhu, I. Al Samarai, J. Neuser, F. Salamida, Pedro Assis, G. Matthiae, F. Sánchez, P. Facal San Luis, A. Etchegoyen, M. Josebachuili, C. J. Todero Peixoto, A. Schmidt, H.O. Klages, H. Martinez, Lorenzo Caccianiga, V. M. Theodoro, M. Ambrosio, Antonio Bueno, A. Petrolini, S. Le Coz, Carlos Medina, M. De Domenico, G. Parente, I. Lhenry-Yvon, Libor Nozka, Javier Tiffenberg, Sergio Pastor, Sasa Micanovic, O. Wainberg, D. Nitz, J. R. T. de Mello Neto, H. Bluemer, A. Gorgi, Y. Guardincerri, S. Messina, N. Krohm, C. J.W.P. Timmermans, M. Muenchmeyer, A. P. Ferguson, Peter L. Biermann, Petr Schovanek, Esteban Roulet, Jan Pękala, A. Chiavassa, G. S. Varner, Hernan Wahlberg, L. Ochilo, N. Hollon, V. Verzi, B. Sarkar, B. Tome, H. Schoorlemmer, A. E. Herve, K. B. Barber, S. Jansen, E. Petermann, Gualberto Avila, B. García, Tobias Winchen, P. Lebrun, Christian Glaser, A. Criss, Miroslav Pech, Guenter Sigl, R. López, Karen S. Caballero-Mora, Paolo Privitera, L. R. Wiencke, D. Martraire, Lukas Middendorf, Christine Peters, Ingomar Allekotte, N. Palmieri, J. Espadanal, Corinne Berat, M. Giller, W. C. Brown, K. Link, R. R. Prado, M. C. Maccarone, A. Dorofeev, Darko Veberič, Pavel Horvath, A. Menshikov, L. Latronico, G. Torralba Elipe, R. Krause, Maria Rita Coluccia, Yogendra N. Srivastava, M. I. Micheletti, M. Ludwig, C. E. Santo, Angela V. Olinto, M. Urban, R. J. Lauer, H. Wilczyński, P. Billoir, M. S. Sutherland, J. de Oliveira, A. C. Rovero, L. Valore, S. Navas, Martin Erdmann, M. Melissas, Igor Katkov, J. F. Valdés Galicia, P. Ristori, Amin Aminaei, C. Bleve, C. Aramo, K. Weidenhaupt, Rúben Conceição, R. A. Vázquez, A. Filipčič, I. De Mitri, A. Gascon Bravo, S. Grebe, A. Haungs, Eun-Joo Ahn, L. Villaseñor, I. Rodriguez Cabo, Alberto Daniel Supanitsky, J. L. Harton, V. Marin, Pham Ngoc Diep, C. Di Giulio, Q. Dorosti Hasankiadeh, Paulo J. S. Gonçalves, F. Sarazin, L. Martin, M. Oliveira, Balázs Kégl, G. P. Guedes, S. Petrera, Marc Weber, S. T. Garcia Roca, Sofia Andringa, Marco Cilmo, Philipp Papenbreer, I. Zaw, G. Rodriguez Fernandez, B. Mitrica, Heino Falcke, R. Squartini, François Montanet, Petr Travnicek, Vincenzo Rizi, H. J. Mathes, D. Martello, Bruno Daniel, Alejandro Almela, P. Mantsch, T. Paul, Z. Szadkowski, S. van Velzen, K. H. Becker, M.E. Ortiz, B. Caccianiga, J. Vicha, Trent D. Grubb, Hernán Asorey, T. Yapici, J. J. Masías Meza, D. Huber, M. Ziolkowski, D. Maurel, Roger W Clay, Silvia Mollerach, O. Martínez Bravo, Juan Manuel Figueira, M. A. Leigui de Oliveira, Marco Giammarchi, Roberta Colalillo, J. Rodriguez Rojo, R. Bonino, A. Shadkam, I. Jandt, A. G. Mariazzi, Markus Roth, E. Menichetti, R. Gaior, A. G. Chavez, Enrique Zas, B. Zamorano, Ralf Ulrich, A. Porcelli, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, Peter Hansen, Azadeh Keivani, Fernando Contreras, G. Medina-Tanco, Carola Dobrigkeit, M. Plum, G. van Aar, P. L. Ghia, F. Guarino, J. Lozano Bahilo, A. Tapia, D. Garcia-Pinto, Alan Watson, W. Rodrigues de Carvalho, Peter Buchholz, H. Gemmeke, Paula Gina Isar, Pedro Brogueira, F. Salesa Greus, J. Alvarez Castillo, M. Tartare, J. W. Cronin, M. L. Díaz Castro, G. Farrar, M. Szuba, I.M. Brancus, R. Piegaia, S. Quinn, G. Toma, H. Glass, Marco Aglietta, A. Segreto, G. Cataldi, Nataliia Borodai, K. Islo, Radomir Smida, G. Mueller, Maurice Stephan, Corbin Covault, Y. Petrov, A. Schulz, E. Trovato, A. Tonachini, V. de Souza, A. Di Matteo, Lino Miramonti, J. Baeuml, B. Gookin, C. Ruehle, P.F. Gómez Vitale, B. Wundheiler, M. Blanco, M. D. Rodríguez-Frías, Gregory R Snow, E. M. Santos, S. H. Cheng, Bruce R. Dawson, P.O. Mazur, Marcus Niechciol, R. Pelayo, P. H. Kasper, B. J. Whelan, S. Querchfeld, L. Niemietz, Miguel Mostafá, Ioana Codrina Maris, N. Pacheco, J. Roberts, Tim Niggemann, J. Stasielak, S. Coutu, Christopher B. Williams, G. C. Hill, Colin Baus, Ralph Engel, J. Ridky, C. Porowski, H. Schieler, A. Stutz, M. Fernandes, Karl-Heinz Kampert, E. Santos, Antonella Castellina, Denise Boncioli, German Ros, O. Kroemer, Jose Chinellato, P. Lautridou, A. Widom, A. Letessier-Selvon, Lorenzo Cazon, David Wittkowski, G. Salina, Danielle LaHurd, Olivier Deligny, R. Meyhandan, T. Fuji, Martina Bohacova, Patrick Allison, J. Sorokin, B. D. Fox, V. Novotny, Rossella Caruso, A. Lucero, G. La Rosa, S. Mathys, M. Erfani, Octavian Sima, J. G. Gonzalez, D. Lebrun, D. Heck, M. Candusso, Peter Gorham, L. Collica, L. Perrone, Jiri Chudoba, D. Torres Machado, Thomas Harrison, P. Pieroni, F. Arqueros, P. Necesal, Research unit Astroparticle Physics, A. Aab, P. Abreu, M. Aglietta, M. Ahler, E. Ahn, I. A. Samarai, I. Albuquerque, I. Allekotte, J. Allen, P. Allison, A. l. Almela, J. A. Castillo, J. Alvarez-Muñiz, R. A. Batista, M. Ambrosio, A. Aminaei, L. s. Anchordoqui, S. Andringa, C. Aramo, F. Arquero, H. Asorey, P. Assi, J. Aublin, M. Ave, M. Avenier, G. Avila, A. Badescu, K. Barber, J. Bäuml, C. Bau, J. Beatty, K. Becker, J. Bellido, C. Berat, X. Bertou, P. Biermann, P. Billoir, F. Blanco, M. Blanco, C. Bleve, H. a. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancu, P. Brogueira, W. Brown, P. Buchholz, A. Bueno, M. Buscemi, K. a. am, B. Caccianiga, L. Caccianiga, M. Candusso, L. Caramete, R. Caruso, A. Castellina, G. Cataldi, L. Cazon, R. Cester, A. Chavez, S. Cheng, A. Chiavassa, J. Chinellato, J. Chudoba, M. Cilmo, R. Clay, G. Cocciolo, R. Colalillo, L. Collica, M. Coluccia, R. Conceição, F. Contrera, M. Cooper, S. Coutu, C. Covault, A. Cri, J. Cronin, A. Curutiu, R. a. Dallier, B. Daniel, S. b. Dasso, K. Daumiller, B. Dawson, R. D. Almeida, M. D. Domenico, S. b. De, J. D. Mello, I. D. Mitri, J. D. Oliveira, V. D. Souza, L. D. Peral, O. Deligny, H. Dembinski, N. Dhital, C. D. Giulio, A. D. Matteo, J. Diaz, M. D. Castro, P. Diep, F. Diogo, C. Dobrigkeit, W. Docter, J. D'Olivo, P. b. Dong, A. Dorofeev, Q. D. Hasankiadeh, M. Dova, J. Ebr, R. Engel, M. Erdmann, M. Erfani, C. a. Escobar, J. Espadanal, A. l. Etchegoyen, P. F. San, H. b. bl, K. Fang, G. Farrar, A. Fauth, N. Fazzini, A. Ferguson, M. Fernande, B. Fick, J. Figueira, A. Filevich, A. b. Filipčič, B. Fox, O. Fratu, U. Fröhlich, B. Fuch, T. Fuji, R. Gaior, B. García, S. G. Roca, D. Garcia-Gamez, D. Garcia-Pinto, G. Garilli, A. G. Bravo, F. Gate, H. Gemmeke, P. Ghia, U. Giaccari, M. Giammarchi, M. Giller, C. Glaser, H. Gla, F. G. Albarracin, M. G. Berisso, P. G. Vitale, P. Gonçalve, J. Gonzalez, B. Gookin, A. Gorgi, P. Gorham, P. Gouffon, S. b. Grebe, N. Griffith, A. Grillo, T. Grubb, Y. Guardincerri, F. Guarino, G. Guede, P. Hansen, D. Harari, T. Harrison, J. Harton, A. Haung, T. Hebbeker, D. Heck, P. Heimann, A. Herve, G. Hill, C. Hojvat, N. Hollon, E. Holt, P. a. Homola, J. b. Hörandel, P. Horvath, M. b. Hrabovský, D. Huber, T. Huege, A. Insolia, P. Isar, K. Islo, I. Jandt, S. b. Jansen, C. Jarne, M. Josebachuili, A. Kääpä, O. Kambeitz, K. Kampert, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, E. Kemp, R. Kieckhafer, H. Klage, M. Kleifge, J. Kleinfeller, R. Krause, N. Krohm, O. Krömer, D. Kruppke-Hansen, D. Kuempel, N. Kunka, G. L. Rosa, D. Lahurd, L. Latronico, R. Lauer, M. Lauscher, P. Lautridou, S. L. Coz, M. Leão, D. Lebrun, P. Lebrun, M. L. De, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. L. Agüera, K. Louedec, J. L. Bahilo, L. c. Lu, A. Lucero, M. Ludwig, H. Lyberi, M. Maccarone, M. Malacari, S. Maldera, J. Maller, D. Mandat, P. Mantsch, A. Mariazzi, V. Marin, I. Mariş, G. Marsella, D. Martello, L. a. Martin, H. Martinez, O. M. Bravo, D. Martraire, J. M. Meza, H. Mathe, S. Mathy, A. Matthew, J. Matthew, G. Matthiae, D. Maurel, D. Maurizio, E. Mayotte, P. Mazur, C. Medina, G. Medina-Tanco, M. Melissa, D. Melo, E. Menichetti, A. Menshikov, S. Messina, R. Meyhandan, S. Mićanović, M. Micheletti, L. Middendorf, I. Minaya, L. Miramonti, B. Mitrica, L. Molina-Bueno, S. Mollerach, M. Monasor, D. M. Ragaigne, F. Montanet, C. Morello, J. Moreno, M. Mostafá, C. Moura, M. c. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra, S. Nava, P. Necesal, L. Nellen, A. b. Nelle, J. Neuser, M. Niechciol, L. Niemietz, T. Niggemann, D. Nitz, D. Nosek, V. Novotny, L. NoŽka, L. Ochilo, A. Olinto, M. Oliveira, M. Ortiz, N. Pacheco, D. P. Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, P. Papenbreer, G. Parente, A. Parra, S. Pastor, T. c. Paul, M. Pech, J. Pkala, R. Pelayo, I. Pepe, L. Perrone, R. Pesce, E. Petermann, C. Peter, S. c. Petrera, A. Petrolini, Y. Petrov, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, A. Porcelli, C. Porowski, R. Prado, P. Privitera, M. Prouza, V. Purrello, E. Quel, S. Querchfeld, S. Quinn, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. b. Riggi, M. Risse, P. Ristori, V. Rizi, J. Robert, W. R. De, I. R. Cabo, G. a. Rodriguez, J. R. Rojo, M. Rodríguez-Fría, G. Ro, J. Rosado, T. Rossler, M. Roth, E. Roulet, A. Rovero, C. Rühle, S. Saffi, A. Saftoiu, F. Salamida, H. Salazar, A. Saleh, F. S. Greu, G. Salina, F. Sánchez, P. Sanchez-Luca, C. Santo, E. Santo, F. Sarazin, B. Sarkar, R. Sarmento, R. Sato, N. Scharf, V. Scherini, H. Schieler, P. Schiffer, A. Schmidt, O. Scholten, H. b. bo, P. Schovánek, A. Schulz, J. Schulz, S. Sciutto, A. Segreto, M. Settimo, A. Shadkam, R. Shellard, I. Sidelnik, G. Sigl, O. Sima, A. Śmiałkowski, R. Šmída, G. Snow, P. Sommer, J. Sorokin, R. Squartini, Y. Srivastava, S. Stanič, J. Stapleton, J. Stasielak, M. Stephan, A. Stutz, F. Suarez, T. Suomijärvi, A. Supanitsky, M. Sutherland, J. Swain, Z. Szadkowski, M. Szuba, O. Taborda, A. Tapia, M. Tartare, N. Thao, V. Theodoro, J. Tiffenberg, C. b. Timmerman, C. T. Peixoto, G. Toma, L. Tomankova, B. Tomé, A. Tonachini, G. T. Elipe, D. T. Machado, P. Travnicek, E. Trovato, M. Tuero, R. Ulrich, M. Unger, M. Urban, J. V. Galicia, I. Valiño, L. Valore, G. V. Aar, A. V. Den, S. V. Velzen, A. V. Vliet, E. Varela, B. V. Cárdena, G. Varner, J. Vázquez, R. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, B. Vlcek, S. Vorobiov, H. Wahlberg, O. l. Wainberg, D. Walz, A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, B. Whelan, A. Widom, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. William, T. Winchen, D. Wittkowski, B. Wundheiler, S. Wyke, T. Yamamoto, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano, E. Za, D. b. Zavrtanik, M. b. Zavrtanik, I. Zaw, A. Zepeda, J. Zhou, Y. Zhu, M. Z. Silva, M. Ziolkowski, Unité Scientifique de la Station de Nançay ( USN ), Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire SUBATECH Nantes ( SUBATECH ), Mines Nantes ( Mines Nantes ) -Université de Nantes ( UN ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de l'Accélérateur Linéaire ( LAL ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Subatomique et de Cosmologie ( LPSC ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Institut de Physique Nucléaire d'Orsay ( IPNO ), PIERRE AUGER, ANR-11-IDEX-0004-02/10-LABX-0063,ILP,Institute Lagrange of Paris ( 2011 ), ANR-11-IDEX-0004-02/11-IDEX-0004,SUPER,SUPER ( 2011 ), ANR-2010-COSI-002 (SIMINOLE),ANR-2010-COSI-002 (SIMINOLE), European Project : 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET ( 2011 ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), 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)-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 d'Orléans (UO), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), ANR-11-IDEX-0004,SUPER,Sorbonne Universités à Paris pour l'Enseignement et la Recherche(2011), ANR-10-COSI-0002,SIMINOLE,Méthodes de simulations pour des applications de grande échelle en physique expérimentale : inférence statistique, optimisation et apprentissage discriminant(2010), European Project: 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET(2011), 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), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université 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), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), A., Aab, P., Abreu, M., Aglietta, M., Ahler, E., Ahn, I. A., Samarai, I., Albuquerque, I., Allekotte, J., Allen, P., Allison, A. l., Almela, J. A., Castillo, J., Alvarez Muñiz, R. A., Batista, M., Ambrosio, A., Aminaei, L. s., Anchordoqui, S., Andringa, C., Aramo, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A., Badescu, K., Barber, J., Bäuml, C., Bau, J., Beatty, K., Becker, J., Bellido, C., Berat, X., Bertou, P., Biermann, P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H. a., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W., Brown, P., Buchholz, A., Bueno, M., Buscemi, K. a., Am, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A., Chavez, S., Cheng, A., Chiavassa, J., Chinellato, J., Chudoba, M., Cilmo, R., Clay, Cocciolo, Giuseppe, R., Colalillo, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, M., Cooper, S., Coutu, C., Covault, A., Cri, J., Cronin, A., Curutiu, R. a., Dallier, B., Daniel, S. b., Dasso, K., Daumiller, B., Dawson, R. D., Almeida, M. D., Domenico, S. b., De, J. D., Mello, DE MITRI, Ivan, J. D., Oliveira, V. D., Souza, L. D., Peral, O., Deligny, H., Dembinski, N., Dhital, C. D., Giulio, A. D., Matteo, J., Diaz, M. D., Castro, P., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J., D'Olivo, P. b., Dong, A., Dorofeev, Q. D., Hasankiadeh, M., Dova, J., Ebr, R., Engel, M., Erdmann, M., Erfani, C. a., Escobar, J., Espadanal, A. l., Etchegoyen, P. F., San, H. b., Bl, K., Fang, G., Farrar, A., Fauth, N., Fazzini, A., Ferguson, M., Fernande, B., Fick, J., Figueira, A., Filevich, A. b., Filipčič, B., Fox, O., Fratu, U., Fröhlich, B., Fuch, T., Fuji, R., Gaior, B., García, S. G., Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A. G., Bravo, F., Gate, H., Gemmeke, P., Ghia, U., Giaccari, M., Giammarchi, M., Giller, C., Glaser, H., Gla, F. G., Albarracin, M. G., Berisso, P. G., Vitale, P., Gonçalve, J., Gonzalez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S. b., Grebe, N., Griffith, A., Grillo, T., Grubb, Y., Guardincerri, F., Guarino, G., Guede, P., Hansen, D., Harari, T., Harrison, J., Harton, A., Haung, T., Hebbeker, D., Heck, P., Heimann, A., Herve, G., Hill, C., Hojvat, N., Hollon, E., Holt, P. a., Homola, J. b., Hörandel, P., Horvath, M. b., Hrabovský, D., Huber, T., Huege, A., Insolia, P., Isar, K., Islo, I., Jandt, S. b., Jansen, C., Jarne, M., Josebachuili, A., Kääpä, O., Kambeitz, K., Kampert, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, E., Kemp, R., Kieckhafer, H., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G. L., Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S. L., Coz, M., Leão, D., Lebrun, P., Lebrun, M. L., De, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A. L., Agüera, K., Louedec, J. 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T., Machado, P., Travnicek, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. V., Galicia, I., Valiño, L., Valore, G. V., Aar, A. V., Den, S. V., Velzen, A. V., Vliet, E., Varela, B. V., Cárdena, G., Varner, J., Vázquez, R., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, B., Vlcek, S., Vorobiov, H., Wahlberg, O. l., Wainberg, D., Walz, A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, B., Whelan, A., Widom, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D. b., Zavrtanik, M. b., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M. Z., Silva, M., Ziolkowski, Ahn, E. ?. J., I., Al Samarai, Albuquerque, I. ?. F. ?. M., A., Almela, J., Alvarez Castillo, J., Alvarez Mu?iz, R., Alves Batista, L., Anchordoqui, Aramo, Carla, Badescu, A. ?. M., Barber, K. ?. B., J., B?uml, Beatty, J. ?. 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Subjects: Astrofísica, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Astronomy, Ciencias Físicas, muons, hadronic interaction models, Astrophysics, 01 natural sciences, High Energy Physics - Experiment, Auger, purl.org/becyt/ford/1 [https], High Energy Physics - Experiment (hep-ex), Air showers, Production depth, SURFACE DETECTOR ARRAY, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [ PHYS.PHYS.PHYS-INS-DET ] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], High Energy Astrophysical Phenomena (astro-ph.HE), Physics, High-Energy Cosmic Rays, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Detector, Astrophysics::Instrumentation and Methods for Astrophysics, [ SDU.ASTR.IM ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Pierre Auger Observatory, Observable, Instrumentation and Detectors (physics.ins-det), COSMIC-RAYS, longitudinal development, Core (optical fiber), ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Nuclear and High Energy Physics, [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Nuclear physics, cosmic rays, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, extensive air showers, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Zenith, Ciencias Exactas, Muon, 010308 nuclear & particles physics, [ PHYS.ASTR.HE ] Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Física, purl.org/becyt/ford/1.3 [https], ASTROFÍSICA, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astronomía, MODEL, Experimental High Energy Physics, High Energy Physics::Experiment, [ SDU.ASTR.HE ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [ PHYS.ASTR.IM ] Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], muonic component, SYSTEM
Abstract: The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air showers. Using the timing information from the flash analog-to-digital converter traces of surface detectors far from the shower core, it is possible to reconstruct a muon production depth distribution. We characterize the goodness of this reconstruction for zenith angles around 60° and different energies of the primary particle. From these distributions, we define Xμmax as the depth along the shower axis where the production of muons reaches maximum. We explore the potentiality of Xμmax as a useful observable to infer the mass composition of ultrahigh-energy cosmic rays. Likewise, we assess its ability to constrain hadronic interaction models., La lista completa de autores que integran el documento puede consultarse en el archivo., Facultad de Ciencias Exactas, Instituto de Física La Plata
Published: 2014

18. A Targeted Search for Point Sources of EeV Neutrons

Author: J. F. Valdés Galicia, K. H. Becker, I. De Mitri, A. Gascon Bravo, A. Saftoiu, Mariangela Settimo, D. Garcia-Gamez, S. T. Garcia Roca, H. J. Mathes, Alexey Yushkov, O. Fratu, V. Purrello, E. Petermann, D. Nitz, Q. Hasankiadeh, Miroslav Pech, M. Prouza, Luis Villaseñor, A. Śmiałkowski, J. Rodriguez Rojo, A. G. Chavez, M. Szuba, Piotr Homola, M. A. Leigui de Oliveira, F. Montanet, Christian Glaser, M. Zavrtanik, Enrique Zas, Adrian J. Matthews, P. Facal San Luis, C. Di Giulio, Fernando Contreras, P. Abreu, D. Ravignani, M. Josebachuili, J. Neuser, Pavel Horvath, R. Gaior, S. H. Cheng, M. S. Sutherland, S. Le Coz, Luis A. Anchordoqui, Markus Ahlers, Dusan Mandat, D. Garcia-Pinto, O. Krömer, H. Schoorlemmer, A. Dorofeev, D. Martraire, Guenter Sigl, Paula Gina Isar, F. Salesa Greus, Petr Schovanek, E. Varela, N. Griffith, S. J. Saffi, Raul Sarmento, P. Gouffon, M. Platino, G. Cataldi, M. Urban, A. C. Rovero, C. Bleve, L. Nellen, Sofia Andringa, K. B. Barber, M. Weber, Elton J. G. Santos, K. Link, B. Revenu, A. Nelles, F. Suarez, Sergio Dasso, M. Ludwig, John N. Matthews, R. M. Kieckhafer, J. Lozano Bahilo, C. Morello, R. Pesce, J. Rautenberg, A. C. Fauth, Jose Chinellato, N. Kunka, B. García, Tobias Winchen, M. Stephan, N. Scharf, V. Pirronello, U. Fröhlich, C. E. Santo, R. López, Karen S. Caballero-Mora, D. Melo, L. Martin, M. Oliveira, Marco Cilmo, Jaime Alvarez-Muñiz, G. P. Guedes, J. Stasielak, O. Wainberg, D. Huber, W. C. Brown, H. Blümer, P. Sanchez-Lucas, M. Tueros, P. Lautridou, Lu Lu, C. Jarne, David Walz, Corbin Covault, D. Harari, S. Coutu, Alessandro Petrolini, M. Lauscher, Vincenzo Rizi, D. Martello, T. Huege, M. Ziolkowski, A. Widom, Francisco J. Blanco, L. Perrone, H. Lyberis, D. LaHurd, Carla Bonifazi, D. Pakk Selmi-Dei, Jiri Chudoba, D. Torres Machado, F. Gomez Albarracin, A. Shadkam, C. Timmermans, R. Sato, Miroslav Hrabovský, M. Niechciol, Jose A. Bellido, O. Martínez Bravo, B. Mitrica, Markus Roth, A. Parra, Peter L. Biermann, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, A. Lopez Agüera, M. Buscemi, Bruno Daniel, Lino Miramonti, J. Allen, A. F. Grillo, Juan Carlos D'Olivo, T. Pierog, E. Mayotte, L. Ochilo, A. Letessier-Selvon, Martin Erdmann, I. Jandt, P. Brogueira, B. Sarkar, P. L. Ghia, A. Gorgi, B. Keilhauer, A. Haungs, Alina Mihaela Badescu, Paolo Privitera, I. Katkov, S. J. Sciutto, J. L. Harton, F. Guarino, Peter Buchholz, A. Tonachini, L. Nožka, C. Porowski, C. Baus, A. Aminaei, M. Blanco, Lorenzo Cazon, P. Heimann, I. A. Minaya, Xavier Bertou, Bruce R. Dawson, Y. N. Srivastava, J. R. Vázquez, A. Zepeda, T. Yapici, M. Videla, R. Cester, L. Molina-Bueno, J. J. Masías Meza, B. J. Whelan, Roger W Clay, D. Kruppke-Hansen, A. Di Matteo, Lukas Middendorf, P. Gonçalves, P.O. Mazur, J. Rosado, I.M. Brancus, Christine Peters, D. Maurizio, J. C. Moreno, C. Hojvat, Jan Ebr, Lorenzo Caccianiga, V. M. Theodoro, P. Pieroni, G. Navarra, M. Melissas, H. Glass, Marco Aglietta, I. C. Mariş, A. Porcelli, E. Kemp, L. Latronico, D. Monnier Ragaigne, M.D. Rodríguez-Frías, M. Risse, B. Wundheiler, A. van Vliet, P. Mantsch, Denise Boncioli, Gregory R Snow, Pedro Assis, O. A. Taborda, A. Etchegoyen, N. Palmieri, German Ros, A. Schmidt, H. Martinez, M. Ave, E. Trovato, P. Hansen, A. Chiavassa, C. A. Moura, C. Aramo, Pham Ngoc Diep, Brian Fick, N. Pacheco, R. Piegaia, M. Gómez Berisso, R. C. Shellard, B. D. Fox, E.M. Holt, Y. Guardincerri, A. E. Herve, A. Menshikov, B. Tome, G. Müller, L. R. Wiencke, H.O. Klages, Javier Tiffenberg, Heino Falcke, N. T. Thao, J. Vicha, T. A. Harrison, I. Al Samarai, Y. Petrov, Jörg R. Hörandel, G. Garilli, P. Allison, A. Tapia, H. Gemmeke, R. J. Lauer, P. Ristori, I. Lhenry-Yvon, M. Unger, S. van Velzen, Moritz Münchmeyer, Christopher B. Williams, G. C. Hill, F. Arqueros, P. Necesal, Octavian Sima, J. G. Gonzalez, Johannes Schulz, M. Pimenta, M. S. A. B. Leão, Peter Schiffer, G. Parente, D. Lebrun, M. Zimbres Silva, S. Jansen, R. Mussa, J. J. Beatty, V. Marin, B. Vlcek, H. Dembinski, A. Aab, L. Caramete, M. Will, V. Scherini, Balázs Kégl, G. Rodriguez Fernandez, A. D. Supanitsky, Hernán Asorey, Maria-Teresa Dova, Ralph Engel, R. Alves Batista, M. Plum, K. Weidenhaupt, Corinne Berat, Sarka Wykes, A. Criss, N. Fazzini, M. Giller, I. M. Pepe, H. Wahlberg, Z. Szadkowski, G. Varner, Jing Zhou, E. J. Ahn, O. Kambeitz, S. Messina, D. Nosek, T. Yamamoto, Kai Daumiller, P. Lebrun, J. Ridky, S. Navas, R. A. Vázquez, P. A. Kasper, C. J. Todero Peixoto, J. Stapleton, T. Hebbeker, Julien Aublin, B. Gookin, S. Quinn, A. Segreto, Edivaldo Moura Santos, A. Stutz, G. Toma, S. Mićanović, A. P. Ferguson, G. Yuan, J. Kleinfeller, F. Werner, D. Heck, M. Malacari, J. de Oliveira, A. Filipčič, R. Dallier, J. D. Swain, B. Wilczyńska, A. Curutiu, W. Docters, B. Caccianiga, Paul Sommers, L. Tomankova, R. Meyhandan, M. Ortiz, M. A. Muller, S. J. De Jong, I. Zaw, Alejandro Almela, B. Vargas Cárdenas, Maria Concetta Maccarone, M. Avenier, J. Pȩkala, Yunrong Zhu, N. Krohm, S. Riggi, K. Islo, Radomir Smida, J. Espadanal, M. Palatka, P. W. Younk, S. Mollerach, Philipp Papenbreer, J. Bäuml, J. S. Díaz, T. Suomijärvi, A. Insolia, M. Kleifges, D. Zavrtanik, J. Pallotta, Petr Travnicek, E. J. Quel, Ugo Giaccari, G. Marsella, P. N. Dong, M. J. Cooper, Miguel Mostafá, A. Weindl, E. Roulet, F. Sánchez, S. Petrera, Daniel Kuempel, A. Schulz, E. Menichetti, Florian Gaté, Carlos Escobar, H. Wilczyński, Trent D. Grubb, S. Maldera, G. Cocciolo, Béatrice Fuchs, Niraj Dhital, Peter Gorham, J. R. T. de Mello Neto, I. Valiño, P. Billoir, Ivone F. M. Albuquerque, Ke Fang, C. Rühle, Juan Manuel Figueira, Roberta Colalillo, V. de Souza, L. del Peral, F. Diogo, G. Matthiae, Antonio Bueno, Sergio Pastor, O. Ravel, A. G. Mariazzi, Alex Kääpä, Carlos Medina, M. Ambrosio, M. De Domenico, David Wittkowski, G. Salina, Olivier Deligny, Iván Sidelnik, A. Filevich, F. Salamida, N. Hollon, V. Verzi, B. Zamorano, Gualberto Avila, Ingomar Allekotte, L. Collica, R. Pelayo, T. Rossler, Martina Bohacova, S. Querchfeld, Azadeh Keivani, M. L. Díaz Castro, G. Farrar, T. Niggemann, R. M. de Almeida, Angela V. Olinto, M. Monasor, G. Torralba Elipe, R. Krause, L. Valore, L. Niemietz, W. Rodrigues de Carvalho, H. Schieler, R. Ulrich, M. Fernandes, M. Tartare, J. Sorokin, Karl-Heinz Kampert, Antonella Castellina, T. Fuji, J. W. Cronin, S. Grebe, Maria Rita Coluccia, J. Roberts, R. Squartini, T. Paul, Nataliia Borodai, G. Medina-Tanco, M. Candusso, G. van Aar, M. I. Micheletti, D. Maurel, J. Maller, Marco Giammarchi, Carola Dobrigkeit, V. Novotny, Rossella Caruso, A. Lucero, S. Stanič, Alan Watson, J. Alvarez Castillo, F. Sarazin, G. La Rosa, S. Mathys, M. Erfani, P.F. Gómez Vitale, Rúben Conceição, A.M. van den Berg, Darko Veberič, I. Rodriguez Cabo, R. Bonino, K. Louedec, Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de l'Accélérateur Linéaire (LAL), PIERRE AUGER, Research unit Astroparticle Physics, A., Aab, P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I., Al Samarai, I. F. M., Albuquerque, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Mu?iz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, Aramo, Carla, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, K. B., Barber, J., B?uml, C., Bau, J. J., Beatty, K. H., Becker, J. A., Bellido, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, C., Bleve, H., Bl?mer, M., Boh??ov?, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, P., Buchholz, A., Bueno, Buscemi, Mario, K. S., Caballero Mora, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A. G., Chavez, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chudoba, Cilmo, Marco, R. W., Clay, G., Cocciolo, Colalillo, Roberta, L., Collica, M. R., Coluccia, R., Concei??o, F., Contrera, M. J., Cooper, S., Coutu, C. E., Covault, A., Cri, J., Cronin, A., Curutiu, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, S. J., de Jong, J. R. T., de Mello Neto, I., De Mitri, J., de Oliveira, V., de Souza, L., del Peral, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, A., Di Matteo, J. C., Diaz, M. L., D?az Castro, P. N., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, P. N., Dong, A., Dorofeev, M. T., Dova, J., Ebr, R., Engel, M., Erdmann, M., Erfani, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, M., Fernande, B., Fick, J. M., Figueira, A., Filevich, A., Filip?i?, B. D., Fox, O., Fratu, U., Fr?hlich, B., Fuch, T., Fuji, R., Gaior, B., Garc?a, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, F., Gate, H., Gemmeke, P. L., Ghia, U., Giaccari, M., Giammarchi, M., Giller, C., Glaser, H., Gla, F., Gomez Albarracin, M., G?mez Berisso, P. F., G?mez Vitale, P., Gon?alve, J. G., Gonzalez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S., Grebe, N., Griffith, A. F., Grillo, T. D., Grubb, Y., Guardincerri, Guarino, Fausto, G. P., Guede, P., Hansen, D., Harari, T. A., Harrison, J. L., Harton, Q. D., Hasankiadeh, A., Haung, T., Hebbeker, D., Heck, P., Heimann, A. E., Herve, G. C., Hill, C., Hojvat, N., Hollon, E., Holt, P., Homola, J. R., H?randel, P., Horvath, M., Hrabovsk?, D., Huber, T., Huege, A., Insolia, P. G., Isar, K., Islo, I., Jandt, S., Jansen, C., Jarne, M., Josebachuili, A., K??p?, O., Kambeitz, K. H., Kampert, P., Kasper, I., Katkov, B., K?gl, B., Keilhauer, A., Keivani, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Kr?mer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G., La Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S., Le Coz, M. S. A. B., Le?o, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., L?pez, A., Lopez Ag?era, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, M., Malacari, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari?, G., Marsella, D., Martello, L., Martin, H., Martinez, O., Mart?nez Bravo, D., Martraire, J. J., Mas?as Meza, H. J., Mathe, S., Mathy, A. J., Matthew, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P. O., Mazur, C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mi?anovi?, M. I., Micheletti, L., Middendorf, I. A., Minaya, L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, C., Morello, J. C., Moreno, M., Mostaf?, C. A., Moura, M. A., Muller, G., M?ller, M., M?nchmeyer, R., Mussa, G., Navarra, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, M., Niechciol, L., Niemietz, T., Niggemann, D., Nitz, D., Nosek, V., Novotny, L., No?ka, L., Ochilo, A., Olinto, M., Oliveira, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, P., Papenbreer, G., Parente, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pe?kala, R., Pelayo, I. M., Pepe, L., Perrone, R., Pesce, E., Petermann, C., Peter, S., Petrera, A., Petrolini, Y., Petrov, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, A., Porcelli, C., Porowski, P., Privitera, M., Prouza, V., Purrello, E. J., Quel, S., Querchfeld, S., Quinn, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, V., Rizi, J., Robert, W., Rodrigues de Carvalho, I., Rodriguez Cabo, G., Rodriguez Fernandez, J., Rodriguez Rojo, M. D., Rodr?guez Fr?a, G., Ro, J., Rosado, T., Rossler, M., Roth, E., Roulet, A. C., Rovero, C., R?hle, S. J., Saffi, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., S?nchez, P., Sanchez Luca, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, R., Sarmento, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, P., Schov?nek, A., Schulz, J., Schulz, S. J., Sciutto, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, O., Sima, A., ?mia?kowski, R., ?m?da, G. R., Snow, P., Sommer, J., Sorokin, R., Squartini, Y. N., Srivastava, S., Stani?, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomij?rvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, O. A., Taborda, A., Tapia, M., Tartare, N. T., Thao, V. M., Theodoro, J., Tiffenberg, C., Timmerman, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tom?, A., Tonachini, G., Torralba Elipe, D., Torres Machado, P., Travnicek, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, Galicia, J. F. Vald?s., I., Vali?o, Valore, Laura, G., van Aar, A. M., van den Berg, S., van Velzen, A., van Vliet, E., Varela, B., Vargas C?rdena, G., Varner, J. R., V?zquez, R. A., V?zquez, D., Veberi?, V., Verzi, J., Vicha, M., Videla, L., Villase?or, B., Vlcek, H., Wahlberg, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, B. J., Whelan, A., Widom, L., Wiencke, B., Wilczy?ska, H., Wilczy?ski, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, J., Alvarez Muñiz, C., Aramo, J., Bäuml, Bleve, Carla, H., Blümer, M., Boháčová, M., Buscemi, M., Cilmo, Cocciolo, Giuseppe, R., Colalillo, Coluccia, MARIA RITA, R., Conceição, DE MITRI, Ivan, M. L., Díaz Castro, A., Filipčič, U., Fröhlich, B., García, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, F., Guarino, J. R., Hörandel, M., Hrabovský, A., Kääpä, B., Kégl, O., Krömer, M. S. A. B., Leão, R., López, A., Lopez Agüera, I. C., Mariş, Marsella, Giovanni, Martello, Daniele, O., Martínez Bravo, J. J., Masías Meza, S., Mićanović, M., Mostafá, G., Müller, M., Münchmeyer, L., Nožka, J., Pe¸kala, Perrone, Lorenzo, M. D., Rodríguez Fría, C., Rühle, F., Sánchez, Scherini, Viviana, P., Schovánek, A., Śmiałkowski, R., Šmída, S., Stanič, T., Suomijärvi, B., Tomé, J. F., Valdés Galicia, I., Valiño, L., Valore, B., Vargas Cárdena, J. R., Vázquez, R. A., Vázquez, D., Veberič, L., Villaseñor, B., Wilczyńska, and H., Wilczyński
Subjects: Astrofísica, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astronomy, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, 01 natural sciences, Galaxy: disk, cosmic rays, Neutron flux, Observatory, 0103 physical sciences, data analysis [methods], Neutron, 010306 general physics, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Pierre Auger Observatory, Physics, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Galactic Center, cosmic ray, neutrons, Astrophysics::Instrumentation and Methods for Astrophysics, Física, Astronomy and Astrophysics, Galactic plane, methods: data analysis, Magnetic flux, Galaxy, Astronomía, Space and Planetary Science, Experimental High Energy Physics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, ddc:520, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, disk [Galaxy]
Abstract: A flux of neutrons from an astrophysical source in the Galaxy can be detected in the Pierre Auger Observatory as an excess of cosmic-ray air showers arriving from the direction of the source. To avoid the statistical penalty for making many trials, classes of objects are tested in combinations as nine “target sets”, in addition to the search for a neutron flux from the Galactic Center or from the Galactic Plane. Within a target set, each candidate source is weighted in proportion to its electromagnetic flux, its exposure to the Auger Observatory, and its flux attenuation factor due to neutron decay. These searches do not find evidence for a neutron flux from any class of candidate sources. Tabulated results give the combined p-value for each class, with and without the weights, and also the flux upper limit for the most significant candidate source within each class. These limits on fluxes of neutrons significantly constrain models of EeV proton emission from non-transient discrete sources in the Galaxy., La lista completa de autores puede verse en el archivo asociado., Facultad de Ciencias Exactas
Published: 2014

19. Muons in air showers at the Pierre Auger Observatory

Author: D. Pakk Selmi-Dei, D. Maurizio, Johannes Schumacher, F. Salamida, Lorenzo Caccianiga, V. M. Theodoro, Y. Guardincerri, B. Tome, G. Müller, A. J. Matthews, R. Mussa, Alberto Daniel Supanitsky, A. Śmiałkowski, Markus Roth, C. Morello, Fausto Guarino, Matthias Kleifges, David Wittkowski, Germano Guedes, Danielle LaHurd, Olivier Deligny, Peter L. Biermann, Dusan Mandat, A. van Vliet, Eric Mayotte, Paolo Privitera, M. Gómez Berisso, R. C. Shellard, W. Docters, Yogendra N. Srivastava, M. I. Micheletti, E. Varela, N. Griffith, S. Grebe, M. Zavrtanik, Markus Risse, B. Wilczynska, R. Squartini, John L. Harton, Fred Sarazin, Lukas Nellen, T. Paul, Arnulfo Zepeda, R. Meyhandan, P. Abreu, Antonio Insolia, G. Torralba Elipe, F. Sánchez, Sergio Sciutto, L. Ochilo, D. Ravignani, G. Cocciolo, Eva Santos, R. Krause, Federico Suarez, B. Zamorano, Iván Sidelnik, Luis A. Anchordoqui, I. Al Samarai, Sasa Micanovic, Gaetano Salina, Rúben Conceição, L. Valore, Amin Aminaei, E.M. Holt, J. J. Beatty, Norbert Kunka, S. Messina, Azadeh Keivani, Ricardo Vázquez, W. Rodrigues de Carvalho, Maria Giller, A. Saleh, Maria-Teresa Dova, D. Nitz, Silvia Mollerach, B. Vlcek, H. Dembinski, G. Matthiae, M. Tartare, Darko Veberič, I. Zaw, M. Platino, M. Monasor, C. Aramo, J. W. Cronin, G. van Aar, Moritz Münchmeyer, R. Alves Batista, M. Ambrosio, G. C. Hill, Q. Dorosti Hasankiadeh, Tobias Winchen, P. Lebrun, Karen S. Caballero-Mora, B. Mitrica, Heino Falcke, Ralph Engel, V. Marin, Valerio Pirronello, L. Perrone, Sarka Wykes, Marco Giammarchi, J. Vicha, S. Quinn, A. Segreto, M. Ludwig, S. Hartmann, Jing Zhou, Julien Aublin, F. Werner, Jan Ridky, A. Stutz, P. Allison, V. Scherini, Martin Erdmann, G. Toma, Nataliia Borodai, E. J. Ahn, Paul Sommers, D. Martello, M. Blanco, R. Bonino, Michael Unger, S. Jansen, P. Gouffon, François Montanet, S. van Velzen, K. H. Becker, A. G. Mariazzi, K. Islo, Radomir Smida, Beatriz García, Octavian Fratu, D. Torres Machado, D. Melo, Roger W Clay, M. J. Cooper, A. Gorgi, Miroslav Palatka, S. J. De Jong, N. Krohm, Jose Chinellato, P. Lautridou, S. Navas, Johannes Schulz, M. Melissas, M. Will, B. Sarkar, Christian Glaser, M. Pimenta, Carlos Medina, M. De Domenico, Joshua A. Gordon, M. Avenier, A. Curutiu, A. Widom, Daniel Kuempel, M. Ave, Carlos Escobar, A. Filipčič, A. C. Rovero, Paula Gina Isar, C. Bleve, Pedro Brogueira, F. Salesa Greus, G. Cataldi, J. Espadanal, J. F. Valdés Galicia, I. De Mitri, A. Gascon Bravo, Dieter Heck, Martin Urban, V. de Souza, N. Palmieri, Ugo Giaccari, M. Zimbres Silva, A. Cordier, S. Maldera, P. W. Younk, Ivone F. M. Albuquerque, Ke Fang, C. J. Todero Peixoto, R. López, E. Trovato, J. Stapleton, Marc Weber, P. Billoir, Tanguy Pierog, M. E. Bertaina, Jörg R. Hörandel, G. Garilli, Lorenzo Cazon, Vincenzo Rizi, A. Menshikov, B. Gookin, S. T. Garcia Roca, Toshihiro Fujii, R. Sato, J. R. T. de Mello Neto, M. Ziolkowski, L. del Peral, O. Ravel, O. Martínez Bravo, E. M. Santos, K. Louedec, Mariangela Settimo, A. Shadkam, M. Buscemi, Maria Rita Coluccia, Alexey Yushkov, Bruno Daniel, K. Weidenhaupt, Bruce R. Dawson, N. Scharf, Antonio Bueno, M. Josebachuili, V. Purrello, P. Heimann, Tim Huege, H. Blümer, Max Malacari, Carlos Hojvat, D. Nosek, Juan Carlos D'Olivo, T. Yapici, D. Newton, Ernesto Kemp, Esteban Roulet, Piotr Homola, Lukas Middendorf, Jan Ebr, Serguei Vorobiov, Sergio Petrera, Christine Peters, J. J. Masías Meza, P. Facal San Luis, D. Maurel, H. Schoorlemmer, Gualberto Avila, Gustavo Medina-Tanco, Nicolás González, Ingomar Allekotte, S. Le Coz, D. Monnier Ragaigne, M. A. Leigui de Oliveira, T. Rossler, Piera Luisa Ghia, Guenter Sigl, Thomas Hebbeker, C. L. Williams, Angela V. Olinto, O. Krömer, O. A. Taborda, Sergio Dasso, Balázs Kégl, C. Di Giulio, S. J. Saffi, H. Martinez, G. Rodriguez Fernandez, A. P. Ferguson, Hernán Asorey, Corinne Berat, C. E. Santo, B. Revenu, U. Fröhlich, A. Tapia, C. Jarne, J. de Oliveira, J. R. Vázquez, Henryk Wilczyński, Hermann-Josef Mathes, Antoine Letessier-Selvon, van den Ad M Berg, Luca Latronico, Alejandro Almela, P. Sanchez-Lucas, D. Harari, M. Oliveira, Markus Lauscher, Kai Daumiller, J. Phuntsok, M. Videla, V. M. Aranda, Jeffrey Brack, Olaf Scholten, Humberto Ibarguen Salazar, Raul Sarmento, A. Aab, F. Gate, L. Caramete, H. Gemmeke, L. Tomankova, M. Mallamaci, G. Navarra, C. A. Moura, T. Yamamoto, Brian Fick, Samo Stanič, J. Lozano Bahilo, John Swain, Philipp Papenbreer, J. S. Díaz, D. Garcia-Pinto, Petr Travnicek, Alan Coleman, Trent D. Grubb, D. Huber, Petr Schovanek, Carla Bonifazi, Juan Manuel Figueira, Roberta Colalillo, Jose A. Bellido, M. Prouza, G. Yuan, Corbin Covault, Y. Petrov, Matías Rolf Hampel, J. A.J. Matthews, Xavier Bertou, J. Rodriguez Rojo, Bianca Keilhauer, A. G. Chavez, Pedro Assis, S. Riggi, Jaime Rosado, Alina Mihaela Badescu, F.G. Schröder, Enrique Zas, I. M. Pepe, Alexander Grillo, J. Stasielak, R. Cester, S. Coutu, Norberto Fazzini, Lino Miramonti, Fernando Contreras, M. D. Rodríguez-Frías, M. A. Muller, Peter Schiffer, Paulo J. S. Gonçalves, D. Kruppke-Hansen, D. Garcia-Gamez, Alberto Etchegoyen, I. C. Mariş, J. Allen, Hernan Wahlberg, C. Porowski, Alexandra Saftoiu, A. Dorofeev, I. Jandt, A. Tepe, I. Lhenry-Yvon, Octavian Sima, J. G. Gonzalez, Ralf Ulrich, Igor Katkov, R. R. Prado, Denise Boncioli, German Ros, A. Di Matteo, Paul M. Mantsch, B. Wundheiler, A. Parra, L. Villaseñor, Miguel Mostafá, Marcus Niechciol, Anderson Fauth, Gregory R Snow, P. H. Kasper, L. Martin, M. S. A. B. Leão, D. Lebrun, R. J. Lauer, L. Nožka, G. Parente, R. Piegaia, Marco Cilmo, P. Ristori, Alex Kääpä, Peter Mazur, S. Querchfeld, Colin Baus, V. M. Olmos-Gilbaja, L. Niemietz, N. Pacheco, J. Roberts, Tim Niggemann, Yingchun Zhu, H. Schieler, M. Fernandes, B. Caccianiga, Karl-Heinz Kampert, Antonella Castellina, B. Vargas Cárdenas, R. M. Kieckhafer, J. Rautenberg, T. Suomijärvi, J. Pallotta, G. S. Varner, O. Wainberg, E. J. Quel, Béatrice Fuchs, Niraj Dhital, W. C. Brown, I. Valiño, J. Neuser, M. Candusso, Peter Gorham, Charles Timmermans, L. Collica, Jiri Chudoba, Thomas Harrison, Richard Dallier, A. Nelles, Jaime Alvarez-Muñiz, Lu Lu, P. Pieroni, I. A. Minaya, André Schulz, F. Arqueros, P. Necesal, Martina Bohacova, Jan Pękala, Hans Klages, A. Chiavassa, A. E. Herve, K. B. Barber, L. R. Wiencke, J. Sorokin, A. Porcelli, B. D. Fox, M. L. Díaz Castro, G. Farrar, Francesca Zuccarello, Maurice Stephan, A. Tonachini, P.F. Gómez Vitale, J. Maller, G. Marsella, A. Weindl, N. Hollon, V. Verzi, V. Novotny, J. Bäuml, Rossella Caruso, A. Lucero, S. Mathys, M. Erfani, E. Petermann, Miroslav Pech, Pavel Horvath, M. S. Sutherland, Danilo Zavrtanik, Sofia Andringa, K. Link, D. Martraire, Miroslav Hrabovský, A. Haungs, O. Kambeitz, F. Diogo, R. M. de Almeida, Zbigniew Szadkowski, Rodrigo Pelayo, Stijn Buitink, Alberto Filevich, Peter Hansen, R. Gaior, Peter Buchholz, M. Szuba, I.M. Brancus, Carola Dobrigkeit, H. Glass, M. Plum, Marco Aglietta, Alan Watson, Jonny Kleinfeller, J. Alvarez Castillo, L. Molina-Bueno, David Walz, Laboratoire de Physique Subatomique et de Cosmologie ( LPSC ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Unité Scientifique de la Station de Nançay ( USN ), Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire SUBATECH Nantes ( SUBATECH ), Mines Nantes ( Mines Nantes ) -Université de Nantes ( UN ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), 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 ), Institut de Physique Nucléaire d'Orsay ( IPNO ), Pierre AUGER, ANR-10-LABX-63,ANR-10-LABX-63, European Project : 328826,EC:FP7:PEOPLE,FP7-PEOPLE-2012-IEF,AUGER2FUTURE ( 2013 ), European Project : 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET ( 2011 ), UNIVERSIDADE DE ESTADUAL DE CAMPINAS, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), 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), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut de Physique Nucléaire d'Orsay (IPNO), ANR-10-LABX-0063,ILP,Institute Lagrange of Paris(2010), European Project: 328826,EC:FP7:PEOPLE,FP7-PEOPLE-2012-IEF,AUGER2FUTURE(2013), European Project: 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET(2011), Aab A., Abreu P., Aglietta M., Ahn E. J., Al Samarai I., Albuquerque I. F. M., Allekotte I., Allison P., Almela A., Alvarez Castillo J., Alvarez-Muñiz J., Alves Batista R., Ambrosio M., Aminaei A., Anchordoqui L., Andringa S., Aramo C., Aranda V. M., Arqueros F., Arsene N., Asorey H., Assis P., Aublin J., Ave M., Avenier M., Avila G., Awal N., Badescu A. M., Barber K. B., Bäuml J., Baus C., Beatty J. J., Becker K. H., Bellido J. A., Berat C., Bertaina M. E., Bertou X., Biermann P. L., Billoir P., Blaess S. G., Blanco A., Blanco M., Bleve C., Blümer H., Boháčová M., Boncioli D., Bonifazi C., Borodai N., Brack J., Brancus I., Bridgeman A., Brogueira P., Brown W. C., Buchholz P., Bueno A., Buitink S., Buscemi M., Caballero-Mora K. S., Caccianiga B., Caccianiga L., Candusso M., Caramete L., Caruso R., Castellina A., Cataldi G., Cazon L., Cester R., Chavez A. G., Chiavassa A., Chinellato J. A., Chudoba J., Cilmo M., Clay R. W., Cocciolo G., Colalillo R., Coleman A., Collica L., Coluccia M. R., Conceição R., Contreras F., Cooper M. J., Cordier A., Coutu S., Covault C. E., Cronin J., Dallier R., Daniel B., Dasso S., Daumiller K., Dawson B. R., de Almeida R. M., de Jong S. J., De Mauro G., de Mello Neto J. R. T., De Mitri I., de Oliveira J., de Souza V., del Peral L., Deligny O., Dembinski H., Dhital N., Di Giulio C., Di Matteo A., Diaz J. C., Díaz Castro M. L., Diogo F., Dobrigkeit C., Docters W., D’Olivo J. C., Dorofeev A., Dorosti Hasankiadeh Q., Dova M. T., Ebr J., Engel R., Erdmann M., Erfani M., Escobar C. O., Espadanal J., Etchegoyen A., Falcke H., Fang K., Farrar G., Fauth A. C., Fazzini N., Ferguson A. P., Fernandes M., Fick B., Figueira J. M., Filevich A., Filipčič A., Fox B. D., Fratu O., Freire M. M., Fuchs B., Fujii T., García B., Garcia-Pinto D., Gate F., Gemmeke H., Gherghel-Lascu A., Ghia P. L., Giaccari U., Giammarchi M., Giller M., Głas D., Glaser C., Glass H., Golup G., Gómez Berisso M., Gómez Vitale P. F., González N., Gookin B., Gordon J., Gorgi A., Gorham P., Gouffon P., Griffith N., Grillo A. F., Grubb T. D., Guardincerri Y., Guarino F., Guedes G. P., Hampel M. R., Hansen P., Harari D., Harrison T. A., Hartmann S., Harton J. L., Haungs A., Hebbeker T., Heck D., Heimann P., Herve A. E., Hill G. C., Hojvat C., Hollon N., Holt E., Homola P., Hörandel J. R., Horvath P., Hrabovský M., Huber D., Huege T., Insolia A., Isar P. G., Jandt I., Jansen S., Jarne C., Johnsen J. A., Josebachuili M., Kääpä A., Kambeitz O., Kampert K. H., Kasper P., Katkov I., Kégl B., Keilhauer B., Keivani A., Kemp E., Kieckhafer R. M., Klages H. O., Kleifges M., Kleinfeller J., Krause R., Krohm N., Krömer O., Kuempel D., Kunka N., LaHurd D., Latronico L., Lauer R., Lauscher M., Lautridou P., Le Coz S., Lebrun D., Lebrun P., Leigui de Oliveira M. A., Letessier-Selvon A., Lhenry-Yvon I., Link K., Lopes L., López R., López Casado A., Louedec K., Lu L., Lucero A., Malacari M., Maldera S., Mallamaci M., Maller J., Mandat D., Mantsch P., Mariazzi A. G., Marin V., Mariş I. C., Marsella G., Martello D., Martin L., Martinez H., Martínez Bravo O., Martraire D., Masías Meza J. J., Mathes H. J., Mathys S., Matthews J., Matthews J. A. J., Matthiae G., Maurel D., Maurizio D., Mayotte E., Mazur P. O., Medina C., Medina-Tanco G., Meissner R., Mello V. B. B., Melo D., Menshikov A., Messina S., Meyhandan R., Micheletti M. I., Middendorf L., Minaya I. A., Miramonti L., Mitrica B., Molina-Bueno L., Mollerach S., Montanet F., Morello C., Mostafá M., Moura C. A., Muller M. A., Müller G., Müller S., Mussa R., Navarra G., Navarro J. L., Navas S., Necesal P., Nellen L., Nelles A., Neuser J., Nguyen P. H., Niculescu-Oglinzanu M., Niechciol M., Niemietz L., Niggemann T., Nitz D., Nosek D., Novotny V., Nožka L., Ochilo L., Oikonomou F., Olinto A., Pacheco N., Pakk Selmi-Dei D., Palatka M., Pallotta J., Papenbreer P., Parente G., Parra A., Paul T., Pech M., Pȩkala J., Pelayo R., Pepe I. M., Perrone L., Petermann E., Peters C., Petrera S., Petrov Y., Phuntsok J., Piegaia R., Pierog T., Pieroni P., Pimenta M., Pirronello V., Platino M., Plum M., Porcelli A., Porowski C., Prado R. R., Privitera P., Prouza M., Purrello V., Quel E. J., Querchfeld S., Quinn S., Rautenberg J., Ravel O., Ravignani D., Revenu B., Ridky J., Riggi S., Risse M., Ristori P., Rizi V., Rodrigues de Carvalho W., Rodriguez Fernandez G., Rodriguez Rojo J., Rodríguez-Frías M. D., Rogozin D., Rosado J., Roth M., Roulet E., Rovero A. C., Saffi S. J., Saftoiu A., Salamida F., Salazar H., Saleh A., Salesa Greus F., Salina G., Sánchez F., Sanchez-Lucas P., Santos E., Santos E. M., Sarazin F., Sarkar B., Sarmento R., Sato R., Scarso C., Schauer M., Scherini V., Schieler H., Schiffer P., Schmidt D., Scholten O., Schoorlemmer H., Schovánek P., Schröder F. G., Schulz A., Schulz J., Schumacher J., Sciutto S. J., Segreto A., Settimo M., Shadkam A., Shellard R. C., Sidelnik I., Sigl G., Sima O., Śmiałkowski A., Šmída R., Snow G. R., Sommers P., Sorokin J., Squartini R., Srivastava Y. N., Stanca D., Stanič S., Stapleton J., Stasielak J., Stephan M., Stutz A., Suarez F., Suomijärvi T., Supanitsky A. D., Sutherland M. S., Swain J., Szadkowski Z., Taborda O. A., Tapia A., Tepe A., Theodoro V. M., Tiffenberg J., Timmermans C., Todero Peixoto C. J., Toma G., Tomankova L., Tomé B., Tonachini A., Torralba Elipe G., Torres Machado D., Travnicek P., Ulrich R., Unger M., Urban M., Valdés Galicia J. F., Valiño I., Valore L., van Aar G., van Bodegom P., van den Berg A. M., van Velzen S., van Vliet A., Varela E., Vargas Cárdenas B., Varner G., Vasquez R., Vázquez J. R., Vázquez R. A., Veberič D., Verzi V., Vicha J., Videla M., Villaseñor L., Vlcek B., Vorobiov S., Wahlberg H., Wainberg O., Walz D., Watson A. A., Weber M., Weidenhaupt K., Weindl A., Werner F., Widom A., Wiencke L., Wilczyński H., Winchen T., Wittkowski D., Wundheiler B., Wykes S., Yang L., Yapici T., Yushkov A., Zas E., Zavrtanik D., Zavrtanik M., Zepeda A., Zhu Y., Zimmermann B., Ziolkowski M., Zuccarello F., Aab, A., Abreu, P., Aglietta, M., Ahn, E. . J., Al Samarai, I., Albuquerque, I. . F. . M., Allekotte, I., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Aranda, V. . M., Arqueros, F., Arsene, N., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Awal, N., Badescu, A. . M., Barber, K. . B., Bäuml, J., Baus, C., Beatty, J. . J., Becker, K. . H., Bellido, J. . A., Berat, C., Bertaina, M. . E., Bertou, X., Biermann, P. . L., Billoir, P., Blaess, S. . G., Blanco, A., Blanco, M., Bleve, Carla, Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Borodai, N., Brack, J., Brancus, I., Bridgeman, A., Brogueira, P., Brown, W. . C., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Caballero Mora, K. . S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. . G., Chiavassa, A., Chinellato, J. . A., Chudoba, J., Cilmo, M., Clay, R. . W., Cocciolo, G., Colalillo, R., Coleman, A., Collica, L., Coluccia, MARIA RITA, Conceição, R., Contreras, F., Cooper, M. . J., Cordier, A., Coutu, S., Covault, C. . E., Cronin, J., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. . R., de Almeida, R. . M., de Jong, S. . J., De Mauro, G., de Mello Neto, J. . R. . T., DE MITRI, Ivan, de Oliveira, J., de Souza, V., del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. . C., Díaz Castro, M. . L., Diogo, F., Dobrigkeit, C., Docters, W., D’Olivo, J. . C., Dorofeev, A., Dorosti Hasankiadeh, Q., Dova, M. . T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. . O., Espadanal, J., Etchegoyen, A., Falcke, H., Fang, K., Farrar, G., Fauth, A. . C., Fazzini, N., Ferguson, A. . P., Fernandes, M., Fick, B., Figueira, J. . M., Filevich, A., Filipčič, A., Fox, B. . D., Fratu, O., Freire, M. . M., Fuchs, B., Fujii, T., García, B., Garcia Pinto, D., Gate, F., Gemmeke, H., Gherghel Lascu, A., Ghia, P. . L., Giaccari, U., Giammarchi, M., Giller, M., Głas, D., Glaser, C., Glass, H., Golup, G., Gómez Berisso, M., Gómez Vitale, P. . F., González, N., Gookin, B., Gordon, J., Gorgi, A., Gorham, P., Gouffon, P., Griffith, N., Grillo, A. . F., Grubb, T. . D., Guardincerri, Y., Guarino, F., Guedes, G. . P., Hampel, M. . R., Hansen, P., Harari, D., Harrison, T. . A., Hartmann, S., Harton, J. . L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. . E., Hill, G. . C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. . R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. . G., Jandt, I., Jansen, S., Jarne, C., Johnsen, J. . A., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. . H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. . M., Klages, H. . O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kuempel, D., Kunka, N., Lahurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Le Coz, S., Lebrun, D., Lebrun, P., Leigui de Oliveira, M. . A., Letessier Selvon, A., Lhenry Yvon, I., Link, K., Lopes, L., López, R., López Casado, A., Louedec, K., Lu, L., Lucero, A., Malacari, M., Maldera, S., Mallamaci, M., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. . G., Marin, V., Mariş, I. . C., Marsella, Giovanni, Martello, Daniele, Martin, L., Martinez, H., Martínez Bravo, O., Martraire, D., Masías Meza, J. . J., Mathes, H. . J., Mathys, S., Matthews, J., Matthews, J. . A. . J., Matthiae, G., Maurel, D., Maurizio, D., Mayotte, E., Mazur, P. . O., Medina, C., Medina Tanco, G., Meissner, R., Mello, V. . B. . B., Melo, D., Menshikov, A., Messina, S., Meyhandan, R., Micheletti, M. . I., Middendorf, L., Minaya, I. . A., Miramonti, L., Mitrica, B., Molina Bueno, L., Mollerach, S., Montanet, F., Morello, C., Mostafá, M., Moura, C. . A., Muller, M. . A., Müller, G., Müller, S., Mussa, R., Navarra, G., Navarro, J. . L., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Nguyen, P. . H., Niculescu Oglinzanu, M., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Ochilo, L., Oikonomou, F., Olinto, A., Pacheco, N., Pakk Selmi Dei, D., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I. . M., Perrone, Lorenzo, Petermann, E., Peters, C., Petrera, S., Petrov, Y., Phuntsok, J., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Prado, R. . R., Privitera, P., Prouza, M., Purrello, V., Quel, E. . J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rizi, V., Rodrigues de Carvalho, W., Rodriguez Fernandez, G., Rodriguez Rojo, J., Rodríguez Frías, M. . D., Rogozin, D., Rosado, J., Roth, M., Roulet, E., Rovero, A. . C., Saffi, S. . J., Saftoiu, A., Salamida, F., Salazar, H., Saleh, A., Salesa Greus, F., Salina, G., Sánchez, F., Sanchez Lucas, P., Santos, E., Santos, E. . M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scarso, C., Schauer, M., Scherini, Viviana, Schieler, H., Schiffer, P., Schmidt, D., Scholten, O., Schoorlemmer, H., Schovánek, P., Schröder, F. . G., Schulz, A., Schulz, J., Schumacher, J., Sciutto, S. . J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. . C., Sidelnik, I., Sigl, G., Sima, O., Śmiałkowski, A., Šmída, R., Snow, G. . R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. . N., Stanca, D., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. . D., Sutherland, M. . S., Swain, J., Szadkowski, Z., Taborda, O. . A., Tapia, A., Tepe, A., Theodoro, V. . M., Tiffenberg, J., Timmermans, C., Todero Peixoto, C. . J., Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Torralba Elipe, G., Torres Machado, D., Travnicek, P., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J. . F., Valiño, I., Valore, L., van Aar, G., van Bodegom, P., van den Berg, A. . M., van Velzen, S., van Vliet, A., Varela, E., Vargas Cárdenas, B., Varner, G., Vasquez, R., Vázquez, J. . R., Vázquez, R. . A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. . A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Widom, A., Wiencke, L., Wilczyński, H., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yang, L., Yapici, T., Yushkov, A., Zas, E., Zavrtanik, D., Zavrtanik, M., Zepeda, A., Zhu, Y., Zimmermann, B., Ziolkowski, M., Zuccarello, F., Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), 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), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), M., Ambrosio, Aramo, Carla, Buscemi, Mario, Cilmo, Marco, Colalillo, Roberta, Guarino, Fausto, Valore, Laura, The Pierre Auger, Collaboration, Research unit Astroparticle Physics, and Research unit Nuclear & Hadron Physics
Subjects: [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, Cosmic-ray interactions, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, extensive atmospherical showers, muon density, muon number, Pierre Auger Observatory, cosmic radiation UHE, Hadronic interaction models, 7. Clean energy, Auger, Settore FIS/04 - Fisica Nucleare e Subnucleare, Nuclear physics, Altitude, Settore FIS/05 - Astronomia e Astrofisica, Observatory, NERGY COSMIC-RAYS, DETECTOR, MODEL, Extensive air showers, cosmic radiation UHE, DETECTOR, Scaling, Cosmic rays, Zenith, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Pierre Auger Observatory, Muon, NERGY COSMIC-RAYS, Settore FIS/01 - Fisica Sperimentale, energy cosmic-rays, detector, model, Astrophysics::Instrumentation and Methods for Astrophysics, Física, [ PHYS.ASTR.HE ] Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], ASTROFÍSICA, extensive atmospherical showers, muon number, MODEL, muon density, Experimental High Energy Physics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the first hybrid measurement of the average muon number in air showers at ultrahigh energies, initiated by cosmic rays with zenith angles between 62° and 80°. The measurement is based on 174 hybrid events recorded simultaneously with the surface detector array and the fluorescence detector of the Pierre Auger Observatory. The muon number for each shower is derived by scaling a simulated reference profile of the lateral muon density distribution at the ground until it fits the data. A 1019eV shower with a zenith angle of 67°, which arrives at the surface detector array at an altitude of 1450 m above sea level, contains on average (2.68±0.04±0.48(sys))×107 muons with energies larger than 0.3 GeV. The logarithmic gain dlnNμ/dlnE of muons with increasing energy between 4×1018eV and 5×1019eV is measured to be (1.029±0.024±0.030(sys))., La lista completa de autores que integran el documento puede consultarse en el archivo, Instituto de Física La Plata
Published: 2015

20. Searches for Large-Scale Anisotropy in the Arrival Directions of Cosmic Rays Detected above Energy of $10^{19}$ eV at the Pierre Auger Observatory and the Telescope Array

Author: Telescope, Array, Pierre Auger Collaborations (Alexander Aab, Pedro, Abreu, Marco, Aglietta, Eun Joo Ahn, Imen Al Samarai, Ivone, Albuquerque, Ingomar, Allekotte, Jeff, Allen, Patrick, Allison, Alejandro, Almela, Jesus Alvarez Castillo, Jaime Alvarez Muñiz, Rafael Alves Batista, Michelangelo, Ambrosio, Amin, Aminaei, Luis, Anchordoqui, Sofia, Andringa, Carla, Aramo, Victor Manuel Aranda, Fernando, Arqueros, Hernán Gonzalo Asorey, Pedro, Assis, Julien, Aublin, Maximo, Ave, Michel, Avenier, Gualberto, Avila, Nafiun, Awal, Alina Mihaela Badescu, Barber, Kerri B., Julia, Bäuml, Colin, Baus, Jim, Beatty, Karl Heinz Becker, Bellido, Jose A., Corinne, Berat, Mario Edoardo Bertania, Xavier, Bertou, Peter, Biermann, Pierre, Billoir, Blaess, Simon G., Miguel, Blanco, Carla, Bleve, Hans, Blümer, Martina, Boháčová, Denise, Boncioli, Carla, Bonifazi, Raffaella, Bonino, Nataliia, Borodai, Jeffrey, Brack, Iliana, Brancus, Ariel, Bridgeman, Pedro, Brogueira, Brown, William C., Peter, Buchholz, Antonio, Bueno, Stijn, Buitink, Buscemi, Mario, Caballero Mora, Karen S., Barbara, Caccianiga, Lorenzo, Caccianiga, Marina, Candusso, Laurentiu, Caramete, Caruso, Rossella, Antonella, Castellina, Gabriella, Cataldi, Lorenzo, Cazon, Rosanna, Cester, Chavez, Alan G., Andrea, Chiavassa, Jose Augusto Chinellato, Jiri, Chudoba, Marco, Cilmo, Clay, Roger W., Giuseppe, Cocciolo, Roberta, Colalillo, Alan, Coleman, Laura, Collica, Maria Rita Coluccia, Ruben, Conceição, Fernando, Contreras, Cooper, Mathew J., Alain, Cordier, Stephane, Coutu, Corbin, Covault, James, Cronin, Alex, Curutiu, Richard, Dallier, Bruno, Daniel, Sergio, Dasso, Kai, Daumiller, Dawson, Bruce R., de Almeida, Rogerio M., Manlio De Domenico, de Jong, Sijbrand J., Joao de Mello Neto, Ivan De Mitri, Jaime de Oliveira, Vitor de Souza, Luis del Peral, Olivier, Deligny, Hans, Dembinski, Niraj, Dhital, Claudio Di Giulio, Armando Di Matteo, Johana Chirinos Diaz, Mary Lucia Díaz Castro, Francisco, Diogo, Carola, Dobrigkeit, Wendy, Docters, Juan Carlos D'Olivo, Alexei, Dorofeev, Qader Dorosti Hasankiadeh, Maria Teresa Dova, Jan, Ebr, Ralph, Engel, Martin, Erdmann, Mona, Erfani, Escobar, Carlos O., Joao, Espadanal, Alberto, Etchegoyen, Pedro Facal San Luis, Heino, Falcke, Fang, Ke, Glennys, Farrar, Anderson, Fauth, Norberto, Fazzini, Ferguson, Andrew P., Mateus, Fernandes, Brian, Fick, Juan Manuel Figueira, Alberto, Filevich, Andrej, Filipčič, Brendan, Fox, Octavian, Fratu, Uwe, Fröhlich, Benjamin, Fuchs, Toshihiro, Fujii, Romain, Gaior, Beatriz, García, Sayri Tupac Garcia Roca, Diego Garcia Gamez, Diego Garcia Pinto, Gianpaolo, Garilli, Alberto Gascon Bravo, Florian, Gate, Hartmut, Gemmeke, Piera Luisa Ghia, Ugo, Giaccari, Marco, Giammarchi, Maria, Giller, Christian, Glaser, Henry, Glass, Mariano Gómez Berisso, Gómez Vitale, Primo F., Patrícia, Gonçalves, Gonzalez, Javier G., Nicolás, González, Ben, Gookin, Jacob, Gordon, Alessio, Gorgi, Peter, Gorham, Philippe, Gouffon, Stefan, Grebe, Nathan, Griffith, Aurelio, Grillo, Grubb, Trent D., Fausto, Guarino, Germano, Guedes, Matías Rolf Hampel, Patricia, Hansen, Diego, Harari, Harrison, Thomas A., Sebastian, Hartmann, John, Harton, Andreas, Haungs, Thomas, Hebbeker, Dieter, Heck, Philipp, Heimann, Herve, Alexander E., Hill, Gary C., Carlos, Hojvat, Nicholas, Hollon, Ewa, Holt, Piotr, Homola, Jörg, Hörandel, Pavel, Horvath, Miroslav, Hrabovský, Daniel, Huber, Tim, Huege, Antonio, Insolia, Paula Gina Isar, Ingolf, Jandt, Stefan, Jansen, Cecilia, Jarne, Mariela, Josebachuili, Alex, Kääpä, Olga, Kambeitz, Karl Heinz Kampert, Peter, Kasper, Igor, Katkov, Balazs, Kégl, Bianca, Keilhauer, Azadeh, Keivani, Ernesto, Kemp, Roger, Kieckhafer, Hans, Klages, Matthias, Kleifges, Jonny, Kleinfeller, Raphael, Krause, Nicole, Krohm, Oliver, Krömer, Daniel Kruppke Hansen, Daniel, Kuempel, Norbert, Kunka, Danielle, Lahurd, Luca, Latronico, Robert, Lauer, Markus, Lauscher, Pascal, Lautridou, Sandra Le Coz, Milton, Leão, Didier, Lebrun, Paul, Lebrun, Marcelo Augusto Leigui de Oliveira, Antoine Letessier Selvon, Isabelle Lhenry Yvon, Katrin, Link, Rebeca, López, Angeles Lopez Agüera, Karim, Louedec, Julio Lozano Bahilo, Lu, Lu, Agustin, Lucero, Marianne, Ludwig, Max, Malacari, Simone, Maldera, Manuela, Mallamaci, Jennifer, Maller, Dusan, Mandat, Paul, Mantsch, Analisa, Mariazzi, Vincent, Marin, Ioana, Mariş, Giovanni, Marsella, Daniele, Martello, Lilian, Martin, Humberto, Martinez, Oscar Martínez Bravo, Diane, Martraire, Jimmy Masías Meza, Hermann Josef Mathes, Sebastian, Mathys, James, Matthews, John, Matthews, Giorgio, Matthiae, Detlef, Maurel, Daniela, Maurizio, Eric, Mayotte, Peter, Mazur, Carlos, Medina, Gustavo Medina Tanco, Rebecca, Meissner, Maximilien, Melissas, Diego, Melo, Alexander, Menshikov, Stefano, Messina, Rishi, Meyhandan, Saša, Mićanović, Maria Isabel Micheletti, Lukas, Middendorf, Minaya, Ignacio A., Lino, Miramonti, Bogdan, Mitrica, Laura Molina Bueno, Silvia, Mollerach, Maria, Monasor, Delphine Monnier Ragaigne, François, Montanet, Carlo, Morello, Miguel, Mostafá, Moura, Celio A., Marcio Aparecido Muller, Gero, Müller, Sarah, Müller, Moritz, Münchmeyer, Roberto, Mussa, Gianni, Navarra, Sergio, Navas, Petr, Necesal, Lukas, Nellen, Anna, Nelles, Jens, Neuser, Nguyen, Phong H., Marcus, Niechciol, Lukas, Niemietz, Tim, Niggemann, Dave, Nitz, Dalibor, Nosek, Vladimir, Novotny, Lyberis, Nožka, Livingstone, Ochilo, Angela, Olinto, Micael, Oliveira, Noelia, Pacheco, Daniel Pakk Selmi Dei, Miroslav, Palatka, Juan, Pallotta, Nunzia, Palmieri, Philipp, Papenbreer, Gonzalo, Parente, Alejandra, Parra, Thomas, Paul, Miroslav, Pech, Jan, Pękala, Rodrigo, Pelayo, Iuri, Pepe, Lorenzo, Perrone, Emily, Petermann, Christine, Peters, Sergio, Petrera, Yevgeniy, Petrov, Jamyang, Phuntsok, Ricardo, Piegaia, Tanguy, Pierog, Pablo, Pieroni, Mário, Pimenta, Valerio, Pirronello, Manuel, Platino, Matthias, Plum, Alessio, Porcelli, Czeslaw, Porowski, Raul Ribeiro Prado, Paolo, Privitera, Michael, Prouza, Victor, Purrello, Quel, Eduardo J., Sven, Querchfeld, Sean, Quinn, Julian, Rautenberg, Olivier, Ravel, Diego, Ravignani, Benoît, Revenu, Jan, Ridky, Simone, Riggi, Markus, Risse, Pablo, Ristori, Vincenzo, Rizi, Washington Rodrigues de Carvalho, Iago Rodriguez Cabo, Gonzalo Rodriguez Fernandez, Jorge Rubén Rodriguez Rojo, Maria Dolores Rodríguez Frías, Dmytro, Rogozin, Germán, Ros, Jaime, Rosado, Tomas, Rossler, Markus, Roth, Esteban, Roulet, Adrian, Rovero, Saffi, Steven J., Alexandra, Saftoiu, Francesco, Salamida, Humberto, Salazar, Ahmed, Saleh, Francisco Salesa Greus, Gaetano, Salina, Federico, Sánchez, Patricia Sanchez Lucas, Santo, Catarina E., Edivaldo Moura Santos, Eva, Santos, Fred, Sarazin, Biswaijt, Sarkar, Raul, Sarmento, Ricardo, Sato, Nils, Scharf, Viviana, Scherini, Harald, Schieler, Peter, Schiffer, David, Schmidt, Olaf, Scholten, Harm, Schoorlemmer, Petr, Schovánek, Alexander, Schulz, Johannes, Schulz, Johannes, Schumacher, Sergio, Sciutto, Alberto, Segreto, Mariangela, Settimo, Amir, Shadkam, Shellard, Ronald C., Iván, Sidelnik, Guenter, Sigl, Octavian, Sima, Andrzej, Śmiałkowski, Radomir, Šmída, Gregory, Snow, Paul, Sommers, Sorokin, J., Ruben, Squartini, Srivastava, Yogendra N., Samo, Stanič, James, Stapleton, Jaroslaw, Stasielak, Maurice, Stephan, Anne, Stutz, Federico, Suarez, Tiina, Suomijärvi, Daniel Supanitsky, A., Michael, Sutherland, John, Swain, Zbigniew, Szadkowski, Marek, Szuba, Oscar Alejandro Taborda, Alex, Tapia, Mathieu, Tartare, Andreas, Tepe, Vanessa Menezes Theodoro, Charles, Timmermans, Todero Peixoto, Carlos J., Gabriel, Toma, Lenka, Tomankova, Bernardo, Tomé, Aurelio, Tonachini, Guillermo Torralba Elipe, Diego Torres Machado, Petr, Travnicek, Enrica, Trovato, Matias, Tueros, Ralf, Ulrich, Michael, Unger, Martin, Urban, Valdés Galicia, Jose F., Ines, Valiño, Laura, Valore, Guus van Aar, Patrick van Bodegom, van den Berg, Ad M., Sjoert van Velzen, Arjen van Vliet, Enrique, Varela, Bernardo Vargas Cárdenas, Gary, Varner, Vázquez, Jose R., Ricardo, Vázquez, Darko, Veberič, Valerio, Verzi, Jakub, Vicha, Mariela, Videla, Luis, Villaseñor, Brian, Vlcek, Serguei, Vorobiov, Hernan, Wahlberg, Oscar, Wainberg, David, Walz, Alan, Watson, Marc, Weber, Klaus, Weidenhaupt, Andreas, Weindl, Felix, Werner, Allan, Widom, Lawrence, Wiencke, Barbara, Wilczyńska, Henryk, Wilczyński, Martin, Will, Christopher, Williams, Tobias, Winchen, David, Wittkowski, Brian, Wundheiler, Sarka, Wykes, Tokonatsu, Yamamoto, Tolga, Yapici, Guofeng, Yuan, Alexey, Yushkov, Bruno, Zamorano, Enrique, Zas, Danilo, Zavrtanik, Marko, Zavrtanik, Ingyin, Zaw, Arnulfo, Zepeda, Jing, Zhou, Yue, Zhu, Marcelo Zimbres Silva, Michael, Ziolkowski, Francesca, Zuccarello, Rasha, Abbasi, Michihiko, Abe, Tareq Abu Zayyad, Monica, Allen, Robyn, Anderson, Ryuji, Azuma, Elliott, Barcikowski, Belz, John W., Bergman, Douglas R., Samuel Adam Blake, Robert, Cady, Min Jung Chae, Byung Gu Cheon, Junsei, Chiba, Michiyuki, Chikawa, Woo Ram Cho, Masaki, Fukushima, Takashi, Goto, William, Hanlon, Yoshio, Hayashi, Naoaki, Hayashida, Kinya, Hibino, Ken, Honda, Daisuke, Ikeda, Naoya, Inoue, Takaaki, Ishii, Rie, Ishimori, Hideo Ito (Utah, U., Riken, Dmitri, Ivanov, Jui, Charles C. H., Kenichi, Kadota, Fumio, Kakimoto, Oleg, Kalashev, Katsuaki, Kasahara, Hideyuki, Kawai, Saburo, Kawakami, Shingo, Kawana, Kazumasa, Kawata, Eiji, Kido, Hang Bae Kim, Ji Hee Kim, Ji Hyun Kim, Seiji, Kitamura, Yuki, Kitamura, Vadim, Kuzmin, Young Joon Kwon, Jian, Lan, Sun In Lim, Jon Paul Lundquist, Kazuhiro, Machida, Kai, Martens, Takeshi, Matsuda, Toshio, Matsuyama, Matthews, John N., Mayuko, Minamino, Keijiro, Mukai, Isaac, Myers, Keisuke, Nagasawa, Shigehiro, Nagataki, Toru, Nakamura, Toshiyuki, Nonaka, Asuka, Nozato, Shoichi, Ogio, Jun, Ogura, Munehiro, Ohnishi, Hideyuki, Ohoka, Kaoru, Oki, Takeshi, Okuda, Masaomi, Ono, Akitoshi, Oshima, Shunsuke, Ozawa, Park, Il H., Pshirkov, Maxim S., Douglas Chase Rodriguez, Grigory, Rubtsov, Dongsu, Ryu, Hiroyuki, Sagawa, Nobuyuki, Sakurai, Sampson, Amanda L., Scott, Lauren M., Priti Dhanesh Shah, Fumiya, Shibata, Tatsunobu, Shibata, Hideaki, Shimodaira, Bok Kyun Shin, Smith, Jeremy D., Pierre, Sokolsky, Wayne Springer, R., Benjamin Taylor Stokes, Stratton, Sean R., Thomas, Stroman, Takumi, Suzawa, Mai, Takamura, Masahiro, Takeda, Ryuji, Takeishi, Akimichi, Taketa, Masato, Takita, Yuichiro, Tameda, Hideki, Tanaka, Koichi, Tanaka, Manobu, Tanaka, Thomas, Stanton B., Thomson, Gordon B., Peter, Tinyakov, Igor, Tkachev, Hisao, Tokuno, Takayuki, Tomida, Sergey, Troitsky, Yoshiki, Tsunesada, Kazuki, Tsutsumi, Yukio, Uchihori, Shigeharu, Udo, Federico, Urban, Gina, Vasiloff, Tiffany, Wong, Hiroshi, Yamaoka, Katsuya, Yamazaki, Jongmann, Yang, Kenta, Yashiro, Shigeru, Yoshida, Hisashi, Yoshii, Rhett, Zollinger, Zachary, Zundel, Shogo, Konishi, Shingo, Wachi, Yoshiki, Nishimoto, Heungsu, Shin, Mai, Tsujimoto, Tomoya, Matsuhira, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Unité Scientifique de la Station de Nançay (USN), 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), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), 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), 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), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), A., Aab, P., Abreu, M., Aglietta, E. J., Ahn, I., Al Samarai, I. F. M., Albuquerque, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Mu?iz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, Aramo, Carla, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, K. B., Barber, J., B?uml, C., Bau, J. J., Beatty, K. H., Becker, J. A., Bellido, C., Berat, M. E., Bertaina, X., Bertou, P. L., Biermann, P., Billoir, M., Blanco, C., Bleve, H., Bl?mer, M., Boh??ov?, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, P., Buchholz, A., Bueno, S., Buitink, Buscemi, Mario, K. S., Caballero Mora, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A. G., Chavez, A., Chiavassa, J. A., Chinellato, J., Chudoba, Cilmo, Marco, R. W., Clay, G., Cocciolo, Colalillo, Roberta, A., Coleman, L., Collica, M. R., Coluccia, R., Concei??o, F., Contrera, M. J., Cooper, A., Cordier, S., Coutu, C. E., Covault, J., Cronin, A., Curutiu, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, S. J., de Jong, J. R. T., de Mello Neto, I., De Mitri, J., de Oliveira, V., de Souza, L., del Peral, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, A., Di Matteo, J. C., Diaz, M. L., D?az Castro, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, A., Dorofeev, Q., Dorosti Hasankiadeh, M. T., Dova, J., Ebr, R., Engel, M., Erdmann, M., Erfani, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, M., Fernande, B., Fick, J. M., Figueira, A., Filevich, A., Filip?i?, B. D., Fox, O., Fratu, U., Fr?hlich, B., Fuch, T., Fuji, R., Gaior, B., Garc?a, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, F., Gate, H., Gemmeke, P. L., Ghia, U., Giaccari, M., Giammarchi, M., Giller, C., Glaser, H., Gla, M., G?mez Berisso, P. F., G?mez Vitale, P., Gon?alve, J. G., Gonzalez, N., Gonz?lez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S., Grebe, N., Griffith, A. F., Grillo, T. D., Grubb, Y., Guardincerri, Guarino, Fausto, G. P., Guede, M. R., Hampel, P., Hansen, D., Harari, T. A., Harrison, S., Hartmann, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, P., Heimann, A. E., Herve, G. C., Hill, C., Hojvat, N., Hollon, E., Holt, P., Homola, J. R., H?randel, P., Horvath, M., Hrabovsk?, D., Huber, T., Huege, A., Insolia, P. G., Isar, K., Islo, I., Jandt, S., Jansen, C., Jarne, M., Josebachuili, A., K??p?, O., Kambeitz, K. H., Kampert, P., Kasper, I., Katkov, B., K?gl, B., Keilhauer, A., Keivani, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Kr?mer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G., La Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S., Le Coz, M. S. A. B., Le?o, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., L?pez, A., Lopez Ag?era, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, M. C., Maccarone, M., Malacari, S., Maldera, M., Mallamaci, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mari?, G., Marsella, D., Martello, L., Martin, H., Martinez, O., Mart?nez Bravo, D., Martraire, J. J., Mas?as Meza, H. J., Mathe, S., Mathy, J. A. J., Matthew, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P. O., Mazur, C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mi?anovi?, M. I., Micheletti, L., Middendorf, I. A., Minaya, L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, C., Morello, M., Mostaf?, C. A., Moura, M. A., Muller, G., M?ller, M., M?nchmeyer, R., Mussa, G., Navarra, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, M., Niechciol, L., Niemietz, T., Niggemann, D., Nitz, D., Nosek, V., Novotny, L., No?ka, L., Ochilo, A., Olinto, M., Oliveira, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, P., Papenbreer, G., Parente, A., Parra, T., Paul, M., Pech, J., P?kala, R., Pelayo, I. M., Pepe, L., Perrone, R., Pesce, E., Petermann, C., Peter, S., Petrera, A., Petrolini, Y., Petrov, J., Phuntsok, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, A., Porcelli, C., Porowski, R. R., Prado, P., Privitera, M., Prouza, V., Purrello, E. J., Quel, S., Querchfeld, S., Quinn, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, V., Rizi, J., Robert, W., Rodrigues de Carvalho, I., Rodriguez Cabo, G., Rodriguez Fernandez, J., Rodriguez Rojo, M. D., Rodr?guez Fr?a, G., Ro, J., Rosado, T., Rossler, M., Roth, E., Roulet, A. C., Rovero, S. J., Saffi, A., Saftoiu, F., Salamida, H., Salazar, A., Saleh, F., Salesa Greu, G., Salina, F., S?nchez, P., Sanchez Luca, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, R., Sarmento, R., Sato, N., Scharf, V., Scherini, H., Schieler, P., Schiffer, O., Scholten, H., Schoorlemmer, P., Schov?nek, A., Schulz, J., Schulz, J., Schumacher, S. J., Sciutto, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, O., Sima, A., ?mia?kowski, R., ?m?da, G. R., Snow, P., Sommer, J., Sorokin, R., Squartini, Y. N., Srivastava, S., Stani?, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomij?rvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, O. A., Taborda, A., Tapia, M., Tartare, V. M., Theodoro, C., Timmerman, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tom?, A., Tonachini, G., Torralba Elipe, D., Torres Machado, P., Travnicek, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, Galicia, J. F. Vald?s., I., Vali?o, Valore, Laura, G., van Aar, A. M., van den Berg, S., van Velzen, A., van Vliet, E., Varela, B., Vargas C?rdena, G., Varner, J. R., V?zquez, R. A., V?zquez, D., Veberi?, V., Verzi, J., Vicha, M., Videla, L., Villase?or, B., Vlcek, S., Vorobiov, H., Wahlberg, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, A., Widom, L., Wiencke, B., Wilczy?ska, H., Wilczy?ski, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, R. U., Abbasi, M., Abe, T., Abu Zayyad, M., Allen, R., Anderson, R., Azuma, E., Barcikowski, J. W., Belz, D. R., Bergman, S. A., Blake, R., Cady, M. J., Chae, B. G., Cheon, J., Chiba, M., Chikawa, W. R., Cho, T., Fujii, M., Fukushima, T., Goto, W., Hanlon, Y., Hayashi, N., Hayashida, K., Hibino, K., Honda, D., Ikeda, N., Inoue, T., Ishii, R., Ishimori, H., Ito, D., Ivanov, C. C. H., Jui, K., Kadota, F., Kakimoto, O., Kalashev, K., Kasahara, H., Kawai, S., Kawakami, S., Kawana, K., Kawata, E., Kido, H. B., Kim, J. H., Kim, S., Kitamura, Y., Kitamura, V., Kuzmin, Y. J., Kwon, J., Lan, S. I., Lim, J. P., Lundquist, K., Machida, K., Marten, T., Matsuda, T., Matsuyama, J. N., Matthew, M., Minamino, K., Mukai, I., Myer, K., Nagasawa, S., Nagataki, T., Nakamura, T., Nonaka, A., Nozato, S., Ogio, J., Ogura, M., Ohnishi, H., Ohoka, K., Oki, T., Okuda, M., Ono, A., Oshima, S., Ozawa, I. H., Park, M. S., Pshirkov, D. C., Rodriguez, G., Rubtsov, D., Ryu, H., Sagawa, N., Sakurai, A. L., Sampson, L. M., Scott, P. D., Shah, F., Shibata, T., Shibata, H., Shimodaira, B. K., Shin, J. D., Smith, P., Sokolsky, R. W., Springer, B. T., Stoke, S. R., Stratton, T. A., Stroman, T., Suzawa, M., Takamura, M., Takeda, R., Takeishi, A., Taketa, M., Takita, Y., Tameda, H., Tanaka, K., Tanaka, M., Tanaka, S. B., Thoma, G. 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Aublin, M. Ave, M. Avenier, G. Avila, A. M. Badescu, K. B. Barber, J. Bäuml, C. Bau, J. J. Beatty, K. H. Becker, J. A. Bellido, C. Berat, M. E. Bertaina, X. Bertou, P. L. Biermann, P. Billoir, M. Blanco, C. Bleve, H. Blümer, M. Boháčová, D. Boncioli, C. Bonifazi, R. Bonino, N. Borodai, J. Brack, I. Brancu, P. Brogueira, W. C. Brown, P. Buchholz, A. Bueno, S. Buitink, M. Buscemi, K. S. Caballero-Mora, B. Caccianiga, L. Caccianiga, M. Candusso, L. Caramete, R. Caruso, A. Castellina, G. Cataldi, L. Cazon, R. Cester, A. G. Chavez, A. Chiavassa, J. A. Chinellato, J. Chudoba, M. Cilmo, R. W. Clay, G. Cocciolo, R. Colalillo, A. Coleman, L. Collica, M. R. Coluccia, R. Conceição, F. Contrera, M. J. Cooper, A. Cordier, S. Coutu, C. E. Covault, J. Cronin, A. Curutiu, R. Dallier, B. Daniel, S. Dasso, K. Daumiller, B. R. Dawson, R. M. de, M. D. Domenico, S. J. de, J. R. T., I. D. Mitri, J. d. Oliveira, V. d. Souza, L. d. Peral, O. Deligny, H. Dembinski, N. Dhital, C. D. Giulio, A. D. Matteo, J. C. Diaz, M. L. Díaz, F. Diogo, C. Dobrigkeit, W. Docter, J. C. D'Olivo, A. Dorofeev, Q. D. Hasankiadeh, M. T. Dova, J. Ebr, R. Engel, M. Erdmann, M. Erfani, C. O. Escobar, J. Espadanal, A. Etchegoyen, P. F. San, H. Falcke, K. Fang, G. Farrar, A. C. Fauth, N. Fazzini, A. P. Ferguson, M. Fernande, B. Fick, J. M. Figueira, A. Filevich, A. Filipčič, B. D. Fox, O. Fratu, U. Fröhlich, B. Fuch, T. Fuji, R. Gaior, B. García, S. T. Garcia, D. Garcia-Gamez, D. Garcia-Pinto, G. Garilli, A. G. Bravo, F. Gate, H. Gemmeke, P. L. Ghia, U. Giaccari, M. Giammarchi, M. Giller, C. Glaser, H. Gla, M. G. Berisso, P. F. Gómez, P. Gonçalve, J. G. Gonzalez, N. González, B. Gookin, A. Gorgi, P. Gorham, P. Gouffon, S. Grebe, N. Griffith, A. F. Grillo, T. D. Grubb, Y. Guardincerri, F. Guarino, G. P. Guede, M. R. Hampel, P. Hansen, D. Harari, T. A. Harrison, S. Hartmann, J. L. Harton, A. Haung, T. Hebbeker, D. Heck, P. Heimann, A. E. Herve, G. C. Hill, C. Hojvat, N. Hollon, E. Holt, P. Homola, J. R. Hörandel, P. Horvath, M. Hrabovský, D. Huber, T. Huege, A. Insolia, P. G. Isar, K. Islo, I. Jandt, S. Jansen, C. Jarne, M. Josebachuili, A. Kääpä, O. Kambeitz, K. H. Kampert, P. Kasper, I. Katkov, B. Kégl, B. Keilhauer, A. Keivani, E. Kemp, R. M. Kieckhafer, H. O. Klage, M. Kleifge, J. Kleinfeller, R. Krause, N. Krohm, O. Krömer, D. Kruppke-Hansen, D. Kuempel, N. Kunka, G. L. Rosa, D. LaHurd, L. Latronico, R. Lauer, M. Lauscher, P. Lautridou, S. L. Coz, M. S. A., D. Lebrun, P. Lebrun, M. A. Leigui, A. Letessier-Selvon, I. Lhenry-Yvon, K. Link, R. López, A. L. Agüera, K. Louedec, J. L. Bahilo, L. Lu, A. Lucero, M. Ludwig, M. C. Maccarone, M. Malacari, S. Maldera, M. Mallamaci, J. Maller, D. Mandat, P. Mantsch, A. G. Mariazzi, V. Marin, I. C. Mariş, G. Marsella, D. Martello, L. Martin, H. Martinez, O. M. Bravo, D. Martraire, J. J. Masía, H. J. Mathe, S. Mathy, J. A. J., J. Matthew, G. Matthiae, D. Maurel, D. Maurizio, E. Mayotte, P. O. Mazur, C. Medina, G. Medina-Tanco, M. Melissa, D. Melo, E. Menichetti, A. Menshikov, S. Messina, R. Meyhandan, S. Mićanović, M. I. Micheletti, L. Middendorf, I. A. Minaya, L. Miramonti, B. Mitrica, L. Molina-Bueno, S. Mollerach, M. Monasor, D. M. Ragaigne, F. Montanet, C. Morello, M. Mostafá, C. A. Moura, M. A. Muller, G. Müller, M. Münchmeyer, R. Mussa, G. Navarra, S. Nava, P. Necesal, L. Nellen, A. Nelle, J. Neuser, M. Niechciol, L. Niemietz, T. Niggemann, D. Nitz, D. Nosek, V. Novotny, L. Nožka, L. Ochilo, A. Olinto, M. Oliveira, N. Pacheco, D. P. Selmi-Dei, M. Palatka, J. Pallotta, N. Palmieri, P. Papenbreer, G. Parente, A. Parra, T. Paul, M. Pech, J. Pękala, R. Pelayo, I. M. Pepe, L. Perrone, R. Pesce, E. Petermann, C. Peter, S. Petrera, A. Petrolini, Y. Petrov, J. Phuntsok, R. Piegaia, T. Pierog, P. Pieroni, M. Pimenta, V. Pirronello, M. Platino, M. Plum, A. Porcelli, C. Porowski, R. R. Prado, P. Privitera, M. Prouza, V. Purrello, E. J. Quel, S. Querchfeld, S. Quinn, J. Rautenberg, O. Ravel, D. Ravignani, B. Revenu, J. Ridky, S. 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Elipe, D. T. Machado, P. Travnicek, E. Trovato, M. Tuero, R. Ulrich, M. Unger, M. Urban, J. F. Valdé, I. Valiño, L. Valore, G. v. Aar, A. M. van, S. v. Velzen, A. v. Vliet, E. Varela, B. V. Cárdena, G. Varner, J. R. Vázquez, R. A. Vázquez, D. Veberič, V. Verzi, J. Vicha, M. Videla, L. Villaseñor, B. Vlcek, S. Vorobiov, H. Wahlberg, O. Wainberg, D. Walz, A. A. Watson, M. Weber, K. Weidenhaupt, A. Weindl, F. Werner, A. Widom, L. Wiencke, B. Wilczyńska, H. Wilczyński, M. Will, C. William, T. Winchen, D. Wittkowski, B. Wundheiler, S. Wyke, T. Yamamoto, T. Yapici, P. Younk, G. Yuan, A. Yushkov, B. Zamorano, E. Za, D. Zavrtanik, M. Zavrtanik, I. Zaw, A. Zepeda, J. Zhou, Y. Zhu, M. Z. Silva, M. Ziolkowski, T. P. Auger, R. U. Abbasi, M. Abe, T. Abu-Zayyad, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, R. Cady, M. J. Chae, B. G. Cheon, J. Chiba, M. Chikawa, W. R. Cho, T. Fujii, M. Fukushima, T. Goto, W. Hanlon, Y. Hayashi, N. Hayashida, K. Hibino, K. Honda, D. Ikeda, N. Inoue, T. Ishii, R. Ishimori, H. Ito, D. Ivanov, C. C. H., K. Kadota, F. Kakimoto, O. Kalashev, K. Kasahara, H. Kawai, S. Kawakami, S. Kawana, K. Kawata, E. Kido, H. B. Kim, J. H. Kim, S. Kitamura, Y. Kitamura, V. Kuzmin, Y. J. Kwon, J. Lan, S. I. Lim, J. P. Lundquist, K. Machida, K. Marten, T. Matsuda, T. Matsuyama, J. N. Matthew, M. Minamino, K. Mukai, I. Myer, K. Nagasawa, S. Nagataki, T. Nakamura, T. Nonaka, A. Nozato, S. Ogio, J. Ogura, M. Ohnishi, H. Ohoka, K. Oki, T. Okuda, M. Ono, A. Oshima, S. Ozawa, I. H. Park, M. S. Pshirkov, D. C. Rodriguez, G. Rubtsov, D. Ryu, H. Sagawa, N. Sakurai, A. L. Sampson, L. M. Scott, P. D. Shah, F. Shibata, T. Shibata, H. Shimodaira, B. K. Shin, J. D. Smith, P. Sokolsky, R. W. Springer, B. T. Stoke, S. R. Stratton, T. A. Stroman, T. Suzawa, M. Takamura, M. Takeda, R. Takeishi, A. Taketa, M. Takita, Y. Tameda, H. Tanaka, K. Tanaka, M. Tanaka, S. B. Thoma, G. B. Thomson, P. Tinyakov, I. Tkachev, H. Tokuno, T. Tomida, S. Troitsky, Y. Tsunesada, K. Tsutsumi, Y. Uchihori, S. Udo, F. Urban, G. Vasiloff, T. Wong, R. Yamane, H. Yamaoka, K. Yamazaki, J. Yang, K. Yashiro, Y. Yoneda, S. Yoshida, H. Yoshii, R. Zollinger, Z. Zundel, T. T. Array, and Research unit Astroparticle Physics
Subjects: Ciencias Físicas, Astronomy, Rays, Astrophysics, Astroparticle physics, Cosmic rays, 01 natural sciences, law.invention, Pierre, law, Anisotropy, Telescope, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, [PHYS]Physics [physics], Energy, [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, astroparticle physic, Radiación cósmica, Auger, Cosmic, Arrival, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, CIENCIAS NATURALES Y EXACTAS, High, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, SURFACE DETECTOR, ICECUBE, AIR-SHOWER ARRAY, Directions, cosmic rays, 0103 physical sciences, Instrumentation and Methods for Astrophysics (astro-ph.IM), Ciencias Exactas, Pierre Auger Observatory, SPECTRUM, 010308 nuclear & particles physics, Array, Spectral density, Spherical harmonics, Física, Astronomy and Astrophysics, ASTROFÍSICA, Ultra, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], Astronomía, Dipole, RESOLUTION, Space and Planetary Science, Experimental High Energy Physics, Quadrupole, Observatory, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract: Spherical harmonic moments are well-suited for capturing anisotropy at any scale in the flux of cosmic rays. An unambiguous measurement of the full set of spherical harmonic coefficients requires full-sky coverage. This can be achieved by combining data from observatories located in both the northern and southern hemispheres. To this end, a joint analysis using data recorded at the Telescope Array and the Pierre Auger Observatory above 1019 eV is presented in this work. The resulting multipolar expansion of the flux of cosmic rays allows us to perform a series of anisotropy searches, and in particular to report on the angular power spectrum of cosmic rays above 1019 eV. No significant deviation from isotropic expectations is found throughout the analyses performed. Upper limits on the amplitudes of the dipole and quadrupole moments are derived as a function of the direction in the sky, varying between 7% and 13% for the dipole and between 7% and 10% for a symmetric quadrupole., Facultad de Ciencias Exactas
Published: 2014

21. Reconstruction of inclined air showers detected with the Pierre Auger Observatory

Author: The Pierre Auger Collaboration, Aab, A., Abreu, P., Aglietta, M., Ahlers, M., Ahn, E. J., Samarai, I. Al, Albuquerque, I. F. M., Allekotte, I., Allen, J., Allison, P., Almela, A., Castillo, J. Alvarez, Alvarez-Muñiz, J., Batista, R. Alves, Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertou, X., Biermann, P. L., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brancus, I., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Buscemi, M., Caballero-Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Cheng, S. H., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, R., Collica, L., Coluccia, M. R., Conceição, R., Contreras, F., Cooper, M. J., Coutu, S., Covault, C. E., Criss, A., Cronin, J., Curutiu, A., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., De Domenico, M., de Jong, S. J., Neto, J. R. T. de Mello, De Mitri, I., de Oliveira, J., de Souza, V., del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Castro, M. L. Díaz, Diep, P. N., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dong, P. N., Dorofeev, A., Hasankiadeh, Q. Dorosti, Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Luis, P. Facal San, Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fernandes, M., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Fröhlich, U., Fuchs, B., Fuji, T., Gaior, R., García, B., Roca, S. T. Garcia, Garcia-Gamez, D., Garcia-Pinto, D., Garilli, G., Bravo, A. Gascon, Gate, F., Gemmeke, H., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glaser, C., Glass, H., Albarracin, F. Gomez, Berisso, M. Gómez, Vitale, P. F. Gómez, Gonçalves, P., Gonzalez, J. G., Gookin, B., Gorgi, A., Gorham, P., Gouffon, P., Grebe, S., Griffith, N., Grillo, A. F., Grubb, T. D., Guardincerri, Y., Guarino, F., Guedes, G. P., Hansen, P., Harari, D., Harrison, T. A., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Islo, K., Jandt, I., Jansen, S., Jarne, C., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kruppke-Hansen, D., Kuempel, D., Kunka, N., La Rosa, G., LaHurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Coz, S. Le, Leão, M. S. A. B., Lebrun, D., Lebrun, P., de Oliveira, M. A. Leigui, Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., López, R., Agëra, A. Lopez, Louedec, K., Bahilo, J. Lozano, Lu, L., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M. C., Malacari, M., Maldera, S., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariş, I. C., Marsella, G., Martello, D., Martin, L., Martinez, H., Bravo, O. Martínez, Martraire, D., Meza, J. J. Masías, Mathes, H. J., Mathys, S., Matthews, A. J., Matthews, J., Matthiae, G., Maurel, D., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Messina, S., Meyhandan, R., Mićanović, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina-Bueno, L., Mollerach, S., Monasor, M., Ragaigne, D. Monnier, Montanet, F., Morello, C., Moreno, J. C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Münchmeyer, M., Mussa, R., Navarra, G., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Newton, D., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Ochilo, L., Olinto, A., Oliveira, M., Olmos-Gilbaja, V. M., Ortiz, M., Pacheco, N., Selmi-Dei, D. Pakk, Palatka, M., Pallotta, J., Palmieri, N., Papenbreer, P., Parente, G., Parra, A., Pastor, S., Paul, T., Pech, M., Pȩkala, J., Pelayo, R., Pepe, I. M., Perrone, L., Pesce, R., Petermann, E., Peters, C., Petrera, S., Petrolini, A., Petrov, Y., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Privitera, P., Prouza, M., Purrello, V., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rizi, V., Roberts, J., de Carvalho, W. Rodrigues, Cabo, I. Rodriguez, Fernandez, G. Rodriguez, Rojo, J. Rodriguez, Rodríguez-Frías, M. D., Ros, G., Rosado, J., Rossler, T., Roth, M., Roulet, E., Rovero, A. C., Rühle, C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Greus, F. Salesa, Salina, G., Sánchez, F., Sanchez-Lucas, P., Santo, C. E., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Scholten, O., Schoorlemmer, H., Schovánek, P., Schulz, A., Schulz, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., kowski, A. Śmiał, Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Szuba, M., Taborda, O. A., Tapia, A., Tartare, M., Thao, N. T., Theodoro, V. M., Tiffenberg, J., Timmermans, C., Peixoto, C. J. Todero, Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Elipe, G. Torralba, Machado, D. Torres, Travnicek, P., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Galicia, J. F. Valdés, Valiño, I., Valore, L., van Aar, G., Berg, A. M. van den, van Velzen, S., van Vliet, A., Varela, E., Cárdenas, B. Vargas, Varner, G., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Whelan, B. J., Widom, A., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yamamoto, T., Yapici, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zhou, J., Zhu, Y., Silva, M. Zimbres, Ziolkowski, M., Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Unité Scientifique de la Station de Nançay (USN), 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), Laboratoire de l'Accélérateur Linéaire (LAL), PIERRE AUGER, European Project: 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET(2011), Research unit Astroparticle Physics, A., Aab, P., Abreu, M., Aglietta, M., Ahler, E., Ahn, I. A., Samarai, I., Albuquerque, I., Allekotte, J., Allen, P., Allison, A. k., Almela, J. A., Castillo, J., Alvarez Muñiz, R. A., Batista, M., Ambrosio, A., Aminaei, L. c., Anchordoqui, S., Andringa, C., Aramo, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A., Badescu, K., Barber, J., Bäuml, C., Bau, J., Beatty, K., Becker, J., Bellido, C., Berat, X., Bertou, P., Biermann, P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H. a., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W., Brown, P., Buchholz, A., Bueno, M., Buscemi, K. b., Cl, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A., Chavez, S., Cheng, A., Chiavassa, J., Chinellato, J., Chudoba, M., Cilmo, R., Clay, Cocciolo, Giuseppe, R., Colalillo, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, M., Cooper, S., Coutu, C., Covault, A., Cri, J., Cronin, A., Curutiu, R. a., Dallier, B., Danie, S. e., Dasso, K., Daumiller, B., Dawson, R. D., Almeida, M. D., Domenico, S. b., Bj, J. D., Mello, DE MITRI, Ivan, J. D., Oliveira, V. D., Souza, L. D., Peral, O., Deligny, H., Dembinski, N., Dhital, C. D., Giulio, A. D., Matteo, J., Diaz, M. D., Castro, P., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J., D'Olivo, P. c., Dong, A., Dorofeev, Q. D., Hasankiadeh, M., Dova, J., Ebr, R., Engel, M., Erdmann, M., Erfani, C. c., Escobar, J., Espadanal, A. k., Etchegoyen, P. F., San, H. b., Bj, K., Fang, G., Farrar, A., Fauth, N., Fazzini, A., Ferguson, M., Fernande, B., Fick, J., Figueira, A., Filevich, A. b., Filipčič, B., Fox, O., Fratu, U., Fröhlich, B., Fuch, T., Fuji, R., Gaior, B., García, S. G., Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A. G., Bravo, F., Gate, H., Gemmeke, P., Ghia, U., Giaccari, M., Giammarchi, M., Giller, C., Glaser, H., Gla, F. G., Albarracin, M. G., Berisso, P. G., Vitale, P., Gonçalve, J., Gonzalez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S. b., Grebe, N., Griffth, A., Grillo, T., Grubb, Y., Guardincerri, F., Guarino, G., Guede, P., Hansen, D., Harari, T., Harrison, J., Harton, A., Haung, T., Hebbeker, D., Heck, P., Heimann, A., Herve, G., Hill, C., Hojvat, N., Hollon, E., Holt, P. b., Homola, J. b., Hörandel, P., Horvath, M. a., Hrabovský, D., Huber, T., Huege, A., Insolia, P., Isar, K., Islo, I., Jandt, S. b., Jansen, C., Jarne, M., Josebachuili, A., Kääpä, O., Kambeitz, K., Kampert, P., Kasper, I., Katkov, B., Ke, B., Keilhauer, A., Keivani, E., Kemp, R., Kieckhafer, H., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G. L., Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S. L., Coz, M., Leão, D., Lebrun, P., Lebrun, M. L., De, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A. L., Agüera, K., Louedec, J. L., Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M., Maccarone, M., Malacari, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A., Mariazzi, V., Marin, I., Mari, Marsella, Giovanni, Martello, Daniele, L. a., Martin, H., Martinez, O. M., Bravo, D., Martraire, J. M., Meza, H., Mathe, S., Mathy, A., Matthew, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P., Mazur, C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mićanović, M., Micheletti, L., Middendorf, I., Minaya, L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D. M., Ragaigne, F., Montanet, C., Morello, J., Moreno, M., Mostafá, C., Moura, M. u., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, S., Nava, P., Necesal, L., Nellen, A. b., Nelle, J., Neuser, D. c., Newton, M., Niechciol, L., Niemietz, T., Niggemann, D., Nitz, D., Nosek, V., Novotny, L., Nožka, L., Ochilo, A., Olinto, M., Oliveira, V., Olmos Gilbaja, M., Ortiz, N., Pacheco, D. P., Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, P., Papenbreer, G., Parente, A., Parra, S., Pastor, T. c., Paul, M., Pech, J., Pȩkala, R., Pelayo, I., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, C., Peter, S. a., Petrera, A., Petrolini, Y., Petrov, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, A., Porcelli, C., Porowski, P., Privitera, M., Prouza, V., Purrello, E., Que, S., Querchfeld, S., Quinn, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S. b., Riggi, M., Risse, P., Ristori, V., Rizi, J., Robert, W. R., De, I. R., Cabo, G. b., Rodriguez, J. R., Rojo, M., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, E., Roulet, A., Rovero, C., Rühle, S., Saffi, A., Saftoiu, F., Salamida, H., Salazar, F. S., Greu, G., Salina, F., Sánchez, P., Sanchez Luca, C., Santo, E., Santo, F., Sarazin, B., Sarkar, R., Sarmento, R., Sato, N., Scharf, Scherini, Viviana, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H. b., Cn, P., Schovánek, A., Schulz, J., Schulz, S., Sciutto, A., Segreto, M., Settimo, A., Shadkam, R., Shellard, I., Sidelnik, G., Sigl, O., Sima, A., Śmialkowski, R., Śmída, G., Snow, P., Sommer, J., Sorokin, R., Squartini, Y., Srivastava, S., Stanič, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A., Supanitsky, M., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, O., Taborda, A., Tapia, M., Tartare, N., Thao, V., Theodoro, J., Tiffenberg, C. b., Timmerman, C. T., Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, G. T., Elipe, D. T., Machado, P., Travnicek, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. V., Galicia, I., Valiño, L., Valore, G. V., Aar, A. V., Den, S. V., Velzen, A. V., Vliet, E., Varela, B. V., Cárdena, G., Varner, J., Vázquez, R., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, B., Vlcek, S., Vorobiov, H., Wahlberg, O. k., Wainberg, D., Walz, A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, B., Whelan, A., Widom, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T. c., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D. b., Zavrtanik, M. b., Zavrtanik, I. c., Zaw, A. c., Zepeda, J., Zhou, Y., Zhu, M. Z., Silva, M., Ziolkowski, The Pierre Augur, Collaboration, Aramo, Carla, Buscemi, Mario, Cilmo, Marco, Colalillo, Roberta, Guarino, Fausto, Valore, Laura, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), 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), Institut de Physique Nucléaire d'Orsay ( IPNO ), Université Paris-Sud - Paris 11 ( UP11 ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Nucléaire et de Hautes Énergies ( LPNHE ), Université Pierre et Marie Curie - Paris 6 ( UPMC ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Paris Diderot - Paris 7 ( UPD7 ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique Subatomique et de Cosmologie ( LPSC ), Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut polytechnique de Grenoble - Grenoble Institute of Technology ( Grenoble INP ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA ), Laboratoire SUBATECH Nantes ( SUBATECH ), Mines Nantes ( Mines Nantes ) -Université de Nantes ( UN ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Centre National de la Recherche Scientifique ( CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de l'Accélérateur Linéaire ( LAL ), European Project : 246806,EC:FP7:PEOPLE,FP7-PEOPLE-2009-IRSES,EPLANET ( 2011 ), and Université Joseph Fourier - Grenoble 1 ( UJF ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique ( CNRS ) -Université Grenoble Alpes ( UGA )
Subjects: Astrofísica, Astronomy, Ciencias Físicas, 01 natural sciences, ultra high energy cosmic ray, High Energy Physics - Experiment, purl.org/becyt/ford/1 [https], ENERGY, High Energy Physics - Experiment (hep-ex), EXPERIMENTS, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], HIGH, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, Pierre Auger Observatory, Cascade, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, CIENCIAS NATURALES Y EXACTAS, Normalization (statistics), [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], COSMIC, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], 0103 physical sciences, Energy spectrum, 010306 general physics, ULTRA, Zenith, Shower reconstruction, Muon, 010308 nuclear & particles physics, [ PHYS.ASTR.HE ] Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Física, Astronomy and Astrophysics, purl.org/becyt/ford/1.3 [https], Ultra-high energy cosmic rays, RAYS, Computational physics, Astronomía, Inclined extensive air showers, Experimental High Energy Physics, cosmic ray experiments, [ SDU.ASTR.HE ] Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Energy (signal processing)
Abstract: We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than $60^\circ$ detected with the surface array of the Pierre Auger Observatory. The measured signals at the ground level are fitted to muon density distributions predicted with atmospheric cascade models to obtain the relative shower size as an overall normalization parameter. The method is evaluated using simulated showers to test its performance. The energy of the cosmic rays is calibrated using a sub-sample of events reconstructed with both the fluorescence and surface array techniques. The reconstruction method described here provides the basis of complementary analyses including an independent measurement of the energy spectrum of ultra-high energy cosmic rays using very inclined events collected by the Pierre Auger Observatory., 27 pages, 19 figures, accepted for publication in Journal of Cosmology and Astroparticle Physics (JCAP)
Published: 2014

22. A search for point sources of EeV photons

Author: Aab, A., Abreu, P., Aglietta, M., Ahlers, M., Ahn, E. J., Samarai, I. Al, Albuquerque, I. F. M., Allekotte, I., Allen, J., Allison, P., Almela, A., Alvarez Castillo, J., Alvarez-Muñiz, J., Alves Batista, R., Ambrosio, M., Aminaei, A., Anchordoqui, L., Andringa, S., Aramo, C., Arqueros, F., Asorey, H., Assis, P., Aublin, J., Ave, M., Avenier, M., Avila, G., Badescu, A. M., Barber, K. B., Bäuml, J., Baus, C., Beatty, J. J., Becker, K. H., Bellido, J. A., Berat, C., Bertou, X., Biermann, P. L., Billoir, P., Blanco, F., Blanco, M., Bleve, C., Blümer, H., Boháčová, M., Boncioli, D., Bonifazi, C., Bonino, R., Borodai, N., Brack, J., Brancus, I., Brogueira, P., Brown, W. C., Buchholz, P., Bueno, A., Buscemi, M., Caballero-Mora, K. S., Caccianiga, B., Caccianiga, L., Candusso, M., Caramete, L., Caruso, R., Castellina, A., Cataldi, G., Cazon, L., Cester, R., Chavez, A. G., Cheng, S. H., Chiavassa, A., Chinellato, J. A., Chudoba, J., Cilmo, M., Clay, R. W., Cocciolo, G., Colalillo, R., Collica, L., Coluccia, M. R., Conceição, R., Contreras, F., Cooper, M. J., Coutu, S., Covault, C. E., Criss, A., Cronin, J., Curutiu, A., Dallier, R., Daniel, B., Dasso, S., Daumiller, K., Dawson, B. R., de Almeida, R. M., De Domenico, M., de Jong, S. J., de Mello Neto, J. R. T., De Mitri, I., de Oliveira, J., de Souza, V., del Peral, L., Deligny, O., Dembinski, H., Dhital, N., Di Giulio, C., Di Matteo, A., Diaz, J. C., Díaz Castro, M. L., Diep, P. N., Diogo, F., Dobrigkeit, C., Docters, W., D'Olivo, J. C., Dong, P. N., Dorofeev, A., Dorosti Hasankiadeh, Q., Dova, M. T., Ebr, J., Engel, R., Erdmann, M., Erfani, M., Escobar, C. O., Espadanal, J., Etchegoyen, A., Facal San Luis, P., Falcke, H., Fang, K., Farrar, G., Fauth, A. C., Fazzini, N., Ferguson, A. P., Fernandes, M., Fick, B., Figueira, J. M., Filevich, A., Filipčič, A., Fox, B. D., Fratu, O., Fröhlich, U., Fuchs, B., Fuji, T., Gaior, R., García, B., Garcia Roca, S. T., Garcia-Gamez, D., Garcia-Pinto, D., Garilli, G., Gascon Bravo, A., Gate, F., Gemmeke, H., Ghia, P. L., Giaccari, U., Giammarchi, M., Giller, M., Glaser, C., Glass, H., Gomez Albarracin, F., Gómez Berisso, M., Gómez Vitale, P. F., Gonçalves, P., Gonzalez, J. G., Gookin, B., Gorgi, A., Gorham, P., Gouffon, P., Grebe, S., Griffith, N., Grillo, A. F., Grubb, T. D., Guardincerri, Y., Guarino, F., Guedes, G. P., Hansen, P., Harari, D., Harrison, T. A., Harton, J. L., Haungs, A., Hebbeker, T., Heck, D., Heimann, P., Herve, A. E., Hill, G. C., Hojvat, C., Hollon, N., Holt, E., Homola, P., Hörandel, J. R., Horvath, P., Hrabovský, M., Huber, D., Huege, T., Insolia, A., Isar, P. G., Islo, K., Jandt, I., Jansen, S., Jarne, C., Josebachuili, M., Kääpä, A., Kambeitz, O., Kampert, K. H., Kasper, P., Katkov, I., Kégl, B., Keilhauer, B., Keivani, A., Kemp, E., Kieckhafer, R. M., Klages, H. O., Kleifges, M., Kleinfeller, J., Krause, R., Krohm, N., Krömer, O., Kruppke-Hansen, D., Kuempel, D., Kunka, N., La Rosa, G., LaHurd, D., Latronico, L., Lauer, R., Lauscher, M., Lautridou, P., Le Coz, S., Leão, M. S. A. B., Lebrun, D., Lebrun, P., Leigui de Oliveira, M. A., Letessier-Selvon, A., Lhenry-Yvon, I., Link, K., López, R., Lopez Agüera, A., Louedec, K., Lozano Bahilo, J., Lu, L., Lucero, A., Ludwig, M., Lyberis, H., Maccarone, M. C., Malacari, M., Maldera, S., Maller, J., Mandat, D., Mantsch, P., Mariazzi, A. G., Marin, V., Mariş, I. C., Marsella, G., Martello, D., Martin, L., Martinez, H., Martínez Bravo, O., Martraire, D., Masías Meza, J. J., Mathes, H. J., Mathys, S., Matthews, A. J., Matthews, J., Matthiae, G., Maurel, D., Maurizio, D., Mayotte, E., Mazur, P. O., Medina, C., Medina-Tanco, G., Melissas, M., Melo, D., Menichetti, E., Menshikov, A., Messina, S., Meyhandan, R., Mićanović, S., Micheletti, M. I., Middendorf, L., Minaya, I. A., Miramonti, L., Mitrica, B., Molina-Bueno, L., Mollerach, S., Monasor, M., Monnier Ragaigne, D., Montanet, F., Morello, C., Moreno, J. C., Mostafá, M., Moura, C. A., Muller, M. A., Müller, G., Münchmeyer, M., Mussa, R., Navarra, G., Navas, S., Necesal, P., Nellen, L., Nelles, A., Neuser, J., Niechciol, M., Niemietz, L., Niggemann, T., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Ochilo, L., Olinto, A., Oliveira, M., Ortiz, M., Pacheco, N., Pakk Selmi-Dei, D., Palatka, M., Pallotta, J., Palmieri, N., Papenbreer, P., Parente, G., Parra, A., Pastor, S., Paul, T., Pech, M., Pe¸kala, J., Pelayo, R., Pepe, I. M., Perrone, L., Pesce, R., Petermann, E., Peters, C., Petrera, S., Petrolini, A., Petrov, Y., Piegaia, R., Pierog, T., Pieroni, P., Pimenta, M., Pirronello, V., Platino, M., Plum, M., Porcelli, A., Porowski, C., Privitera, P., Prouza, M., Purrello, V., Quel, E. J., Querchfeld, S., Quinn, S., Rautenberg, J., Ravel, O., Ravignani, D., Revenu, B., Ridky, J., Riggi, S., Risse, M., Ristori, P., Rizi, V., Roberts, J., Rodrigues de Carvalho, W., Rodriguez Cabo, I., Rodriguez Fernandez, G., Rodriguez Rojo, J., Rodríguez-Frías, M. D., Ros, G., Rosado, J., Rossler, T., Roth, M., Roulet, E., Rovero, A. C., Rühle, C., Saffi, S. J., Saftoiu, A., Salamida, F., Salazar, H., Salesa Greus, F., Salina, G., Sánchez, F., Sanchez-Lucas, P., Santo, C. E., Santos, E., Santos, E. M., Sarazin, F., Sarkar, B., Sarmento, R., Sato, R., Scharf, N., Scherini, V., Schieler, H., Schiffer, P., Schmidt, A., Scholten, O., Schoorlemmer, H., Schovánek, P., Schulz, A., Schulz, J., Sciutto, S. J., Segreto, A., Settimo, M., Shadkam, A., Shellard, R. C., Sidelnik, I., Sigl, G., Sima, O., Śmiałkowski, A., Šmída, R., Snow, G. R., Sommers, P., Sorokin, J., Squartini, R., Srivastava, Y. N., Stanič, S., Stapleton, J., Stasielak, J., Stephan, M., Stutz, A., Suarez, F., Suomijärvi, T., Supanitsky, A. D., Sutherland, M. S., Swain, J., Szadkowski, Z., Szuba, M., Taborda, O. A., Tapia, A., Tartare, M., Thao, N. T., Theodoro, V. M., Tiffenberg, J., Timmermans, C., Todero Peixoto, C. J., Toma, G., Tomankova, L., Tomé, B., Tonachini, A., Torralba Elipe, G., Torres Machado, D., Travnicek, P., Trovato, E., Tueros, M., Ulrich, R., Unger, M., Urban, M., Valdés Galicia, J. F., Valiño, I., Valore, L., van Aar, G., van den Berg, A. M., van Velzen, S., van Vliet, A., Varela, E., Vargas Cárdenas, B., Varner, G., Vázquez, J. R., Vázquez, R. A., Veberič, D., Verzi, V., Vicha, J., Videla, M., Villaseñor, L., Vlcek, B., Vorobiov, S., Wahlberg, H., Wainberg, O., Walz, D., Watson, A. A., Weber, M., Weidenhaupt, K., Weindl, A., Werner, F., Whelan, B. J., Widom, A., Wiencke, L., Wilczyńska, B., Wilczyński, H., Will, M., Williams, C., Winchen, T., Wittkowski, D., Wundheiler, B., Wykes, S., Yamamoto, T., Yapici, T., Younk, P., Yuan, G., Yushkov, A., Zamorano, B., Zas, E., Zavrtanik, D., Zavrtanik, M., Zaw, I., Zepeda, A., Zhou, J., Zhu, Y., Zimbres Silva, M., Ziolkowski, M., Auger Collaboration102, The Pierre, Research unit Astroparticle Physics, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), 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), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique Nucléaire d'Orsay (IPNO), PIERRE AUGER, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), 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), Mines Nantes (Mines Nantes)-Université de Nantes (UN)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), A., Aab, P., Abreu, M., Aglietta, M., Ahler, E. J., Ahn, I., Al Samarai, I. F. M., Albuquerque, I., Allekotte, J., Allen, P., Allison, A., Almela, J., Alvarez Castillo, J., Alvarez Muñiz, R., Alves Batista, M., Ambrosio, A., Aminaei, L., Anchordoqui, S., Andringa, C., Aramo, F., Arquero, H., Asorey, P., Assi, J., Aublin, M., Ave, M., Avenier, G., Avila, A. M., Badescu, K. B., Barber, J., Bäuml, C., Bau, J. J., Beatty, K. H., Becker, J. A., Bellido, C., Berat, X., Bertou, P. L., Biermann, P., Billoir, F., Blanco, M., Blanco, Bleve, Carla, H., Blümer, M., Boháčová, D., Boncioli, C., Bonifazi, R., Bonino, N., Borodai, J., Brack, I., Brancu, P., Brogueira, W. C., Brown, P., Buchholz, A., Bueno, M., Buscemi, K. S., Caballero Mora, B., Caccianiga, L., Caccianiga, M., Candusso, L., Caramete, R., Caruso, A., Castellina, G., Cataldi, L., Cazon, R., Cester, A. G., Chavez, S. H., Cheng, A., Chiavassa, J. A., Chinellato, J., Chudoba, M., Cilmo, R. W., Clay, Cocciolo, Giuseppe, R., Colalillo, L., Collica, Coluccia, MARIA RITA, R., Conceição, F., Contrera, M. J., Cooper, S., Coutu, C. E., Covault, A., Cri, J., Cronin, A., Curutiu, R., Dallier, B., Daniel, S., Dasso, K., Daumiller, B. R., Dawson, R. M., de Almeida, M., De Domenico, S. J., de Jong, J. R. T., de Mello Neto, DE MITRI, Ivan, J., de Oliveira, V., de Souza, L., del Peral, O., Deligny, H., Dembinski, N., Dhital, C., Di Giulio, A., Di Matteo, J. C., Diaz, M. L., Díaz Castro, P. N., Diep, F., Diogo, C., Dobrigkeit, W., Docter, J. C., D'Olivo, P. N., Dong, A., Dorofeev, Q., Dorosti Hasankiadeh, M. T., Dova, J., Ebr, R., Engel, M., Erdmann, M., Erfani, C. O., Escobar, J., Espadanal, A., Etchegoyen, P., Facal San Lui, H., Falcke, K., Fang, G., Farrar, A. C., Fauth, N., Fazzini, A. P., Ferguson, M., Fernande, B., Fick, J. M., Figueira, A., Filevich, A., Filipčič, B. D., Fox, O., Fratu, U., Fröhlich, B., Fuch, T., Fuji, R., Gaior, B., García, S. T., Garcia Roca, D., Garcia Gamez, D., Garcia Pinto, G., Garilli, A., Gascon Bravo, F., Gate, H., Gemmeke, P. L., Ghia, U., Giaccari, M., Giammarchi, M., Giller, C., Glaser, H., Gla, F., Gomez Albarracin, M., Gómez Berisso, P. F., Gómez Vitale, P., Gonçalve, J. G., Gonzalez, B., Gookin, A., Gorgi, P., Gorham, P., Gouffon, S., Grebe, N., Griffith, A. F., Grillo, T. D., Grubb, Y., Guardincerri, F., Guarino, G. P., Guede, P., Hansen, D., Harari, T. A., Harrison, J. L., Harton, A., Haung, T., Hebbeker, D., Heck, P., Heimann, A. E., Herve, G. C., Hill, C., Hojvat, N., Hollon, E., Holt, P., Homola, J. R., Hörandel, P., Horvath, M., Hrabovský, D., Huber, T., Huege, A., Insolia, P. G., Isar, K., Islo, I., Jandt, S., Jansen, C., Jarne, M., Josebachuili, A., Kääpä, O., Kambeitz, K. H., Kampert, P., Kasper, I., Katkov, B., Kégl, B., Keilhauer, A., Keivani, E., Kemp, R. M., Kieckhafer, H. O., Klage, M., Kleifge, J., Kleinfeller, R., Krause, N., Krohm, O., Krömer, D., Kruppke Hansen, D., Kuempel, N., Kunka, G., La Rosa, D., Lahurd, L., Latronico, R., Lauer, M., Lauscher, P., Lautridou, S., Le Coz, M. S. A. B., Leão, D., Lebrun, P., Lebrun, M. A., Leigui de Oliveira, A., Letessier Selvon, I., Lhenry Yvon, K., Link, R., López, A., Lopez Agüera, K., Louedec, J., Lozano Bahilo, L., Lu, A., Lucero, M., Ludwig, H., Lyberi, M. C., Maccarone, M., Malacari, S., Maldera, J., Maller, D., Mandat, P., Mantsch, A. G., Mariazzi, V., Marin, I. C., Mariş, Marsella, Giovanni, Martello, Daniele, L., Martin, H., Martinez, O., Martínez Bravo, D., Martraire, J. J., Masías Meza, H. J., Mathe, S., Mathy, A. J., Matthew, J., Matthew, G., Matthiae, D., Maurel, D., Maurizio, E., Mayotte, P. O., Mazur, C., Medina, G., Medina Tanco, M., Melissa, D., Melo, E., Menichetti, A., Menshikov, S., Messina, R., Meyhandan, S., Mićanović, M. I., Micheletti, L., Middendorf, I. A., Minaya, L., Miramonti, B., Mitrica, L., Molina Bueno, S., Mollerach, M., Monasor, D., Monnier Ragaigne, F., Montanet, C., Morello, J. C., Moreno, M., Mostafá, C. A., Moura, M. A., Muller, G., Müller, M., Münchmeyer, R., Mussa, G., Navarra, S., Nava, P., Necesal, L., Nellen, A., Nelle, J., Neuser, M., Niechciol, L., Niemietz, T., Niggemann, D., Nitz, D., Nosek, V., Novotny, L., Nožka, L., Ochilo, A., Olinto, M., Oliveira, M., Ortiz, N., Pacheco, D., Pakk Selmi Dei, M., Palatka, J., Pallotta, N., Palmieri, P., Papenbreer, G., Parente, A., Parra, S., Pastor, T., Paul, M., Pech, J., Pe¸kala, R., Pelayo, I. M., Pepe, Perrone, Lorenzo, R., Pesce, E., Petermann, C., Peter, S., Petrera, A., Petrolini, Y., Petrov, R., Piegaia, T., Pierog, P., Pieroni, M., Pimenta, V., Pirronello, M., Platino, M., Plum, A., Porcelli, C., Porowski, P., Privitera, M., Prouza, V., Purrello, E. J., Quel, S., Querchfeld, S., Quinn, J., Rautenberg, O., Ravel, D., Ravignani, B., Revenu, J., Ridky, S., Riggi, M., Risse, P., Ristori, V., Rizi, J., Robert, W., Rodrigues de Carvalho, I., Rodriguez Cabo, G., Rodriguez Fernandez, J., Rodriguez Rojo, M. D., Rodríguez Fría, G., Ro, J., Rosado, T., Rossler, M., Roth, E., Roulet, A. C., Rovero, C., Rühle, S. J., Saffi, A., Saftoiu, F., Salamida, H., Salazar, F., Salesa Greu, G., Salina, F., Sánchez, P., Sanchez Luca, C. E., Santo, E., Santo, E. M., Santo, F., Sarazin, B., Sarkar, R., Sarmento, R., Sato, N., Scharf, Scherini, Viviana, H., Schieler, P., Schiffer, A., Schmidt, O., Scholten, H., Schoorlemmer, P., Schovánek, A., Schulz, J., Schulz, S. J., Sciutto, A., Segreto, M., Settimo, A., Shadkam, R. C., Shellard, I., Sidelnik, G., Sigl, O., Sima, A., Śmiałkowski, R., Šmída, G. R., Snow, P., Sommer, J., Sorokin, R., Squartini, Y. N., Srivastava, S., Stanič, J., Stapleton, J., Stasielak, M., Stephan, A., Stutz, F., Suarez, T., Suomijärvi, A. D., Supanitsky, M. S., Sutherland, J., Swain, Z., Szadkowski, M., Szuba, O. A., Taborda, A., Tapia, M., Tartare, N. T., Thao, V. M., Theodoro, J., Tiffenberg, C., Timmerman, C. J., Todero Peixoto, G., Toma, L., Tomankova, B., Tomé, A., Tonachini, G., Torralba Elipe, D., Torres Machado, P., Travnicek, E., Trovato, M., Tuero, R., Ulrich, M., Unger, M., Urban, J. F., Valdés Galicia, I., Valiño, L., Valore, G., van Aar, A. M., van den Berg, S., van Velzen, A., van Vliet, E., Varela, B., Vargas Cárdena, G., Varner, J. R., Vázquez, R. A., Vázquez, D., Veberič, V., Verzi, J., Vicha, M., Videla, L., Villaseñor, B., Vlcek, S., Vorobiov, H., Wahlberg, O., Wainberg, D., Walz, A. A., Watson, M., Weber, K., Weidenhaupt, A., Weindl, F., Werner, B. J., Whelan, A., Widom, L., Wiencke, B., Wilczyńska, H., Wilczyński, M., Will, C., William, T., Winchen, D., Wittkowski, B., Wundheiler, S., Wyke, T., Yamamoto, T., Yapici, P., Younk, G., Yuan, A., Yushkov, B., Zamorano, E., Za, D., Zavrtanik, M., Zavrtanik, I., Zaw, A., Zepeda, J., Zhou, Y., Zhu, M., Zimbres Silva, M., Ziolkowski, J., Alvarez Mu?iz, J., B?uml, C., Bleve, H., Bl?mer, M., Boh??ov?, Buscemi, Mario, Cilmo, Marco, G., Cocciolo, Colalillo, Roberta, M. R., Coluccia, R., Concei??o, I., De Mitri, M. L., D?az Castro, A., Filip?i?, U., Fr?hlich, B., Garc?a, M., G?mez Berisso, P. F., G?mez Vitale, P., Gon?alve, Guarino, Fausto, J. R., H?randel, M., Hrabovsk?, A., K??p?, B., K?gl, O., Kr?mer, M. S. A. B., Le?o, R., L?pez, A., Lopez Ag?era, I. C., Mari?, G., Marsella, D., Martello, O., Mart?nez Bravo, J. J., Mas?as Meza, S., Mi?anovi?, M., Mostaf?, G., M?ller, M., M?nchmeyer, L., No?ka, J., Pe?kala, L., Perrone, M. D., Rodr?guez Fr?a, C., R?hle, F., S?nchez, V., Scherini, P., Schov?nek, A., ?mia?kowski, R., ?m?da, S., Stani?, T., Suomij?rvi, B., Tom?, Galicia, J. F. Vald?s., I., Vali?o, Valore, Laura, B., Vargas C?rdena, J. R., V?zquez, R. A., V?zquez, D., Veberi?, L., Villase?or, B., Wilczy?ska, and H., Wilczy?ski
Subjects: Astrofísica, [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Photon, Point source, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Energy flux, FOS: Physical sciences, Cosmic ray, Astrophysics, 7. Clean energy, cosmic rays, Ciencias Exactas, media_common, Physics, Pierre Auger Observatory, High Energy Astrophysical Phenomena (astro-ph.HE), Spectral index, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], [SDU.ASTR.HE]Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::Instrumentation and Methods for Astrophysics, Física, Astronomy and Astrophysics, Radiación cósmica, methods: data analysis, Galaxy, 13. Climate action, Space and Planetary Science, Sky, astroparticle physics, Experimental High Energy Physics, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, Física nuclear, Astroparticle physics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: Measurements of air showersmade using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point sources of EeV photons anywhere in the exposed sky. A multivariate analysis reduces the background of hadronic cosmic rays. The search is sensitive to a declination band from −85º to +20º, in an energy range from 1017.3 eV to 1018.5 eV. No photon point source has been detected. An upper limit on the photon flux has been derived for every direction. The mean value of the energy flux limit that results from this, assuming a photon spectral index of −2, is 0.06 eV cm−2 s−1, and no celestial direction exceeds 0.25 eV cm−2 s−1. These upper limits constrain scenarios in which EeV cosmic ray protons are emitted by non-transient sources in the Galaxy., Facultad de Ciencias Exactas
Published: 2014

23. Searching for Gravitational Waves from Cosmological Phase Transitions with the NANOGrav 12.5-Year Dataset.

Author: Arzoumanian Z, Baker PT, Blumer H, Bécsy B, Brazier A, Brook PR, Burke-Spolaor S, Charisi M, Chatterjee S, Chen S, Cordes JM, Cornish NJ, Crawford F, Cromartie HT, DeCesar ME, Demorest PB, Dolch T, Ellis JA, Ferrara EC, Fiore W, Fonseca E, Garver-Daniels N, Gentile PA, Good DC, Hazboun JS, Holgado AM, Islo K, Jennings RJ, Jones ML, Kaiser AR, Kaplan DL, Kelley LZ, Key JS, Laal N, Lam MT, Lazio TJW, Lee VSH, Lorimer DR, Luo J, Lynch RS, Madison DR, McLaughlin MA, Mingarelli CMF, Mitridate A, Ng C, Nice DJ, Pennucci TT, Pol NS, Ransom SM, Ray PS, Shapiro-Albert BJ, Siemens X, Simon J, Spiewak R, Stairs IH, Stinebring DR, Stovall K, Sun JP, Swiggum JK, Taylor SR, Turner JE, Vallisneri M, Vigeland SJ, Witt CA, and Zurek KM
Abstract: We search for a first-order phase transition gravitational wave signal in 45 pulsars from the NANOGrav 12.5-year dataset. We find that the data can be modeled in terms of a strong first order phase transition taking place at temperatures below the electroweak scale. However, we do not observe any strong preference for a phase-transition interpretation of the signal over the standard astrophysical interpretation in terms of supermassive black hole mergers; but we expect to gain additional discriminating power with future datasets, improving the signal to noise ratio and extending the sensitivity window to lower frequencies. An interesting open question is how well gravitational wave observatories could separate such signals.
Published: 2021
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23 results on '"K. Islo"'

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23. Searching for Gravitational Waves from Cosmological Phase Transitions with the NANOGrav 12.5-Year Dataset.

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23 results on '"K. Islo"'

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