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1. First detection of VHE gamma-ray emission from TXS 1515-273, study of its X-ray variability and spectral energy distribution

Author: M. I. Martínez, V. Neustroev, Francesco Longo, Maria-Isabel Bernardos, Alessandro Marchini, Alicia Fattorini, Tomohiko Oka, Katsuaki Asano, U. Barres de Almeida, Damir Lelas, Adrian Biland, D. Hadasch, D. Miceli, Sanae Inoue, Giacomo D'Amico, Yating Chai, Stefan Cikota, Pawel Gliwny, I. Vovk, David A. Green, R. J. García López, Narek Sahakyan, Stefano Covino, Lea Heckmann, Francesco Gabriele Saturni, J. Becerra González, Armin Nabizadeh, F. D'Ammando, J. Rico, M. Vazquez Acosta, Nicola Giglietto, Alexander Hahn, Nikola Godinovic, Dorota Sobczyńska, G. Ferrara, G. Busetto, E. Molina, Satoshi Fukami, Shunsuke Sakurai, Jarred Gershon Green, Elisabetta Bissaldi, C. Perennes, D. Strom, Yusuke Suda, E. Colombo, Lab Saha, Alice Donini, Kazuma Ishio, Massimo Persic, L. A. Antonelli, Martin Makariev, Dominik Baack, P. G. Prada Moroni, J. Kushida, Ivica Puljak, Victor Moreno, Oscar Blanch, S. Ventura, C. Nigro, Carlo Vigorito, F. Leone, D. Dominis Prester, Alessandra Lamastra, J. A. Barrio, John Hoang, V. Verguilov, Tomoki Saito, J. M. Paredes, Antonio Stamerra, Giovanni Ceribella, Rodolfo Carosi, I. Jiménez, V. D'Elia, Pratik Majumdar, M. V. Fonseca, Daniel Morcuende, Jose Luis Contreras, Jenni Jormanainen, Vincenzo Vitale, T. Schweizer, A. Arbet Engels, S. Loporchio, A. Rugliancich, Marina Manganaro, A. De Angelis, M. Karjalainen, Sargis Gasparyan, Stefano Menchiari, Y. Kajiwara, Fabrizio Tavecchio, M. Palatiello, Manuela Mallamaci, Masahiro Teshima, S. Paiano, Luca Tosti, I. Snidaric, Mosè Mariotti, Martin Will, M. Orienti, S. Mićanović, Ashot Chilingarian, Wolfgang Rhode, Lluis Font, B. Machado de Oliveira Fraga, Tihomir Surić, Manuel Artero, Juan Cortina, Toshiaki Inada, Yuki Iwamura, Stefano Truzzi, D. Zarić, Saverio Lombardi, Francesco Dazzi, Simone Mender, E. Do Souto Espiñeira, Tomislav Terzić, Dario Hrupec, Pablo Peñil, Konstancja Satalecka, L. Maraschi, Giacomo Bonnoli, Sidika Merve Colak, Elina Lindfors, Marcos López-Moya, G. Maneva, Karl Mannheim, Wlodek Bednarek, L. Di Venere, Mitsunari Takahashi, Michele Doro, J. van Scherpenberg, Stefano Ansoldi, Daniel Mazin, Riccardo Paoletti, Christian Fruck, Ivana Batković, E. Prandini, Wrijupan Bhattacharyya, Julian Sitarek, Santiago Ubach, Y. Kobayashi, F. Di Pierro, Jürgen Besenrieder, Lorenzo Bellizzi, Francesco Giordano, Antonio Tutone, J. Otero-Santos, K. Nishijima, Jose Miguel Miranda, Kai Phillip Schmidt, A. Berti, Yoshiki Ohtani, Tjark Miener, David Paneque, D. Elsaesser, Jordi Delgado, Ž. Bošnjak, Matteo Cerruti, Chiara Righi, V. Fallah Ramazani, V. A. Acciari, P. Temnikov, P. Da Vela, Manuel Delfino, Lovro Pavletić, Moritz Hütten, Chaitanya Priyadarshi, Carolin Wunderlich, Ana Babić, C. Delgado Mendez, M. Strzys, Kari Nilsson, Camilla Maggio, Daniela Dorner, Gaia Vanzo, M. Gaug, J. Herrera, Koji Noda, Elisa Bernardini, Alessia Spolon, Léa Jouvin, A. López-Oramas, S. Cutini, Daniel Kerszberg, Marc Ribó, B. De Lotto, S. Nozaki, Andrés Baquero, Hidetoshi Kubo, Abelardo Moralejo, E. Moretti, D. Depaoli, Bernd Schleicher, M. Minev, R. Mirzoyan, Ciro Bigongiari, M. Garczarczyk, R. López-Coto, German Research Foundation, Swiss National Science Foundation, Ministerio de Ciencia, Innovación y Universidades (España), Department of Atomic Energy (India), Institute for Cosmic Ray Research (Japan), University of Tokyo, Japan Society for the Promotion of Science, Ministry of Education, Culture, Sports, Science and Technology (Japan), Ministry of Education and Research (Romania), Academy of Finland, La Caixa, Croatian Science Foundation, University of Rijeka, Polish National Agency for Academic Exchange, European Commission, Ministerio de Economía y Competitividad (España), Istituto Nazionale di Astrofisica, Acciari, Va, Ansoldi, S, Antonelli, La, Engels, Aa, Artero, M, Asano, K, Baack, D, Babic, A, Baquero, A, de Almeida, Ub, Barrio, Ja, Batkovic, I, Gonzalez, Jb, Bednarek, W, Bellizzi, L, Bernardini, E, Bernardos, M, Berti, A, Besenrieder, J, Bhattacharyya, W, Bigongiari, C, Biland, A, Blanch, O, Bosnjak, Z, Busetto, G, Carosi, R, Ceribell, G, Cerruti, M, Chai, Y, Chilingarian, A, Cikota, S, Colak, Sm, Colombo, E, Contreras, Jl, Cortina, J, Covino, S, D'Amico, G, D'Elia, V, Da Vela, P, Dazzi, F, De Angelis, A, De Lotto, B, Delfino, M, Delgado, J, Mendez, Cd, Depaoli, D, Di Pierro, F, Di Venere, L, Espineira, Ed, Prester, Dd, Donini, A, Dorner, D, Doro, M, Elsaesser, D, Ramazani, Vf, Fattorini, A, Ferrara, G, Fonseca, Mv, Font, L, Fruck, C, Fukami, S, Lopez, Rjg, Garczarczyk, M, Gasparyan, S, Gaug, M, Giglietto, N, Giordano, F, Gliwny, P, Godinovic, N, Green, Jg, Green, D, Hadasch, D, Hahn, A, Heckmann, L, Herrera, J, Hoang, J, Hrupec, D, Hutten, M, Inada, T, Inoue, S, Ishio, K, Iwamura, Y, Jimenez, I, Jormanainen, J, Jouvin, L, Kajiwara, Y, Karjalainen, M, Kerszberg, D, Kobayashi, Y, Kubo, H, Kushida, J, Lamastra, A, Lelas, D, Leone, F, Lindfors, E, Lombardi, S, Longo, F, Lopez-Coto, R, Lopez-Moya, M, Lopez-Oramas, A, Loporchio, S, Fraga, Bmd, Maggio, C, Majumdar, P, Makariev, M, Mallamaci, M, Maneva, G, Manganaro, M, Mannheim, K, Maraschi, L, Mariotti, M, Martinez, M, Mazin, D, Menchiari, S, Mender, S, Micanovic, S, Miceli, D, Miener, T, Minev, M, Miranda, Jm, Mirzoyan, R, Molina, E, Moralejo, A, Morcuende, D, Moreno, V, Moretti, E, Neustroev, V, Nigro, C, Nilsson, K, Nishijima, K, Noda, K, Nozaki, S, Ohtani, Y, Oka, T, Otero-Santos, J, Paiano, S, Palatiello, M, Paneque, D, Paoletti, R, Paredes, Jm, Pavletic, L, Penil, P, Perennes, C, Moroni, Pgp, Prandini, E, Priyadarshi, C, Puljak, I, Rhode, W, Ribo, M, Rico, J, Righi, C, Rugliancich, A, Saha, L, Sahakyan, N, Saito, T, Sakurai, S, Satalecka, K, Saturni, Fg, Schleicher, B, Schmidt, K, Schweizer, T, Sitarek, J, Snidaric, I, Sobczynska, D, Spolon, A, Stamerra, A, Strom, D, Strzys, M, Suda, Y, Suric, T, Takahashi, M, Tavecchio, F, Temnikov, P, Terzic, T, Teshima, M, Tosti, L, Truzzi, S, Tutone, A, Ubach, S, Vanscherpenberg, J, Vanzo, G, Acosta, Mv, Ventura, S, Verguilov, V, Vigorito, Cf, Vitale, V, Vovk, I, Will, M, Wunderlich, C, Zaric, D, Bissaldi, E, Bonnoli, G, Cutini, S, D'Ammando, F, Nabizadeh, A, Marchini, A, and Orienti, M
Subjects: Photon, 010504 meteorology & atmospheric sciences, active [Galaxies], Radiation mechanisms: non-thermal, Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, Objects: individual: TXS 1515–273, FOS: Physical sciences, Flux, Astrophysics, 01 natural sciences, 7. Clean energy, law.invention, law, objects: individual: TXS 1515-273, 0103 physical sciences, individual: TXS 1515-273 [Objects], MAGIC (telescope), Blazar, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, non-thermal [Radiation mechanisms], individual: TXS 1515–273 [objects], Gamma ray, Astronomy and Astrophysics, Synchrotron, Crab Nebula, Space and Planetary Science, ddc:520, Spectral energy distribution, Física nuclear, objects: individual: TXS 1515–273, Astrophysics - High Energy Astrophysical Phenomena
Abstract: Full list of authors: Acciari, V. A.; Ansoldi, S.; Antonelli, L. A.; Arbet Engels, A. ; Artero, M.; Asano, K.; Baack, D.; Babić, A.; Baquero, A.; Barres de Almeida, U.; Barrio, J. A.; Batković, I.; Becerra González, J.; Bednarek, W.; Bellizzi, L.; Bernardini, E.; Bernardos, M.; Berti, A.; Besenrieder, J.; Bhattacharyya, W.; Bigongiari, C.; Biland, A.; Blanch, O.; Bošnjak, Ž.; Busetto, G.; Carosi, R.; Ceribella, G.; Cerruti, M.; Chai, Y.; Chilingarian, A.; Cikota, S.; Colak, S. M.; Colombo, E.; Contreras, J. L.; Cortina, J.; Covino, S.; D'Amico, G.; D'Elia, V.; da Vela, P.; Dazzi, F.; de Angelis, A.; de Lotto, B.; Delfino, M.; Delgado, J.; Delgado Mendez, C.; Depaoli, D.; Pierro, F. Di; Venere, L. Di; Do Souto Espiñeira, E.; Dominis Prester, D.; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Fallah Ramazani, V.; Fattorini, A.; Ferrara, G.; Fonseca, M. V.; Font, L.; Fruck, C.; Fukami, S.; García López, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giglietto, N.; Giordano, F.; Gliwny, P.; Godinović, N.; Green, J. G.; Green, D.; Hadasch, D.; Hahn, A.; Heckmann, L.; Herrera, J.; Hoang, J.; Hrupec, D.; Hütten, M.; Inada, T.; Inoue, S.; Ishio, K.; Iwamura, Y.; Jiménez, I.; Jormanainen, J.; Jouvin, L.; Kajiwara, Y.; Karjalainen, M.; Kerszberg, D.; Kobayashi, Y.; Kubo, H.; Kushida, J.; Lamastra, A.; Lelas, D.; Leone, F.; Lindfors, E.; Lombardi, S.; Longo, F.; López-Coto, R.; López-Moya, M.; López-Oramas, A.; Loporchio, S.; Machado de Oliveira Fraga, B.; Maggio, C.; Majumdar, P.; Makariev, M.; Mallamaci, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martínez, M.; Mazin, D.; Menchiari, S.; Mender, S.; Mićanović, S.; Miceli, D.; Miener, T.; Minev, M.; Miranda, J. M.; Mirzoyan, R.; Molina, E.; Moralejo, A.; Morcuende, D.; Moreno, V.; Moretti, E.; Neustroev, V.; Nigro, C.; Nilsson, K.; Nishijima, K.; Noda, K.; Nozaki, S.; Ohtani, Y.; Oka, T.; Otero-Santos, J.; Paiano, S.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes, J. M.; Pavletić, L.; Peñil, P.; Perennes, C.; Persic, M.; Prada Moroni, P. G.; Prandini, E.; Priyadarshi, C.; Puljak, I.; Rhode, W.; Ribó, M.; Rico, J.; Righi, C.; Rugliancich, A.; Saha, L.; Sahakyan, N.; Saito, T.; Sakurai, S.; Satalecka, K.; Saturni, F. G.; Schleicher, B.; Schmidt, K.; Schweizer, T.; Sitarek, J.; Šnidarić, I.; Sobczynska, D.; Spolon, A.; Stamerra, A.; Strom, D.; Strzys, M.; Suda, Y.; Surić, T.; Takahashi, M.; Tavecchio, F.; Temnikov, P.; Terzić, T.; Teshima, M.; Tosti, L.; Truzzi, S.; Tutone, A.; Ubach, S.; van Scherpenberg, J.; Vanzo, G.; Vazquez Acosta, M.; Ventura, S.; Verguilov, V.; Vigorito, C. F.; Vitale, V.; Vovk, I.; Will, M.; Wunderlich, C.; Zarić, D.; Bissaldi, E.; Bonnoli, G.; Cutini, S.; D'Ammando, F.; Nabizadeh, A.; Marchini, A.; Orienti, M.; MAGIC Collaboration., We report here on the first multiwavelength (MWL) campaign on the blazar TXS 1515-273, undertaken in 2019 and extending from radio to very-high-energy gamma-rays (VHE). Up until now, this blazar had not been the subject of any detailed MWL observations. It has a rather hard photon index at GeV energies and was considered a candidate extreme high-synchrotron-peaked source. MAGIC observations resulted in the first-time detection of the source in VHE with a statistical significance of 7.6σ. The average integral VHE flux of the source is 6 ± 1 per cent of the Crab nebula flux above 400 GeV. X-ray coverage was provided by Swift-XRT, XMM-Newton, and NuSTAR. The long continuous X-ray observations were separated by ∼9 h, both showing clear hour scale flares. In the XMM-Newton data, both the rise and decay time-scales are longer in the soft X-ray than in the hard X-ray band, indicating the presence of a particle cooling regime. The X-ray variability time-scales were used to constrain the size of the emission region and the strength of the magnetic field. The data allowed us to determine the synchrotron peak frequency and classify the source as a flaring high, but not extreme synchrotron-peaked object. Considering the constraints and variability patterns from the X-ray data, we model the broad-band spectral energy distribution. We applied a simple one-zone model, which could not reproduce the radio emission and the shape of the optical emission, and a two-component leptonic model with two interacting components, enabling us to reproduce the emission from radio to VHE band. © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society., The financial support of the German BMBF, MPG, and HGF; the Italian INFN and INAF; the Swiss National Fund SNF; the ERDF under the Spanish Ministerio de Ciencia e Innovacion (MICINN) (FPA201787859-P, FPA2017-85668-P, FPA2017-82729-C6-5-R, FPA201790566-REDC, PID2019-104114RB-C31, PID2019-104114RB-C32, PID2019-105510GB-C31, PID2019-107847RB-C41, PID2019107847RB-C42, PID2019-107847RB-C44, PID2019-107988GBC22); the Indian Department of Atomic Energy; the Japanese ICRR, the University of Tokyo, JSPS, and MEXT; the Bulgarian Ministry of Education and Science, National RI Roadmap Project DO1268/16.12.2019 and the Academy of Finland grant nr. 317637 and 320045 are gratefully acknowledged. This work was also supported by the Spanish Centro de Excelencia `Severo Ochoa' SEV-20160588, SEV-2017-0709 and CEX2019-000920-S, and `Maria de Maeztu' CEX2019-000918-M, the Unidad de Excelencia `Maria de Maeztu' MDM-2015-0509-18-2 and the `la Caixa' Foundation (fellowshipLCF/BQ/PI18/11630012), by the Croatian Science Foundation (HrZZ) Project IP-2016-06-9782 and the University of Rijeka Project 13.12.1.3.02, by the DFG Collaborative Research Centers SFB823/C4 and SFB876/C3, the Polish National Research Centre grant UMO-2016/22/M/ST9/00382 and by the Brazilian MCTIC, CNPq, and FAPERJ. The Fermi-LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, theCommissariat à l'Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucleaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase from the following agencies is also gratefully acknowledged: the Istituto Nazionale di Astrofisica in Italy and the Centre National d'Etudes Spatiales in France.
Published: 2021

2. Fermi Large Area Telescope Performance After 10 Years Of Operation

Author: Soebur Razzaque, R. Buehler, T. A. Porter, J. Li, Peter F. Michelson, Marcello Giroletti, L. Tibaldo, F. Piron, Denis Bastieri, N. Saggini, N. Di Lalla, G. Tosti, Dario Gasparrini, Francesco Longo, A. Fiori, Stefan Larsson, J. G. Thayer, Ioannis Liodakis, F. Fana Dirirsa, W. B. Atwood, Luca Baldini, J. S. Perkins, M. Ceccanti, Alessandro Brez, D. Serini, Sylvain Guiriec, Stefano Ciprini, Mn Mazziotta, S. Rainò, Tsunefumi Mizuno, G. Foglia, M. Razzano, Johann Cohen-Tanugi, J. Bregeon, Sina Chen, L. Di Venere, Michele Pinchera, T. J. Johnson, Seth Digel, Elliott D. Bloom, F. Loparco, M. N. Lovellette, M.-H. Grondin, F. Gargano, Hiroyasu Tajima, R. Primavera, Ronaldo Bellazzini, J. E. Grove, Yasushi Fukazawa, E. Orlando, M. Lemoine-Goumard, Marco Ajello, E. Rapposelli, Roopesh Ojha, Denise A. Smith, E. Hays, P. M. Saz Parkinson, E. J. Siskind, G. Principe, Manuel Meyer, P. Fusco, N. Menon, Diego F. Torres, Melissa Pesce-Rollins, J. Valverde, Matthew Kerr, Elisabetta Bissaldi, H. Poon, M. Orienti, S. Buson, Vaidehi S. Paliya, D. J. Thompson, D. Fabiani, Carmelo Sgrò, Riccardo Rando, Magnus Axelsson, A. Reimer, Massimo Minuti, S. Maldera, J. J. Russell, Warit Mitthumsiri, R. Bagagli, S. Griffin, F. D'Ammando, T. Kamae, G. Martí-Devesa, Z. Pei, E. Cavazzuti, E. Nuss, David Paneque, P. Spinelli, T. Glanzman, M. Bagni, F. de Palma, Alessandro Paccagnella, M. Kuss, Aaron Dominguez, M. Mongelli, Luca Latronico, Igor V. Moskalenko, Gloria Spandre, N. Scolieri, R. A. Cameron, G. Jóhannesson, Gabrijela Zaharijas, Alberto Manfreda, L. Vigiani, Bindu Rani, P. Bruel, Ismaël Cognard, Olaf Reimer, D. Horan, P. de la Torre Luque, L. Guillemot, M. E. Monzani, F. Bellardi, Elizabeth C. Ferrara, David A. Green, I. Mereu, P. Caraveo, S. Cutini, D. J. Suson, C. C. Cheung, R. Bonino, P. Lubrano, M. Gustafsson, J. L. Racusin, M. Negro, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Ajello, M., Atwood, W. B., Axelsson, M., Bagagli, R., Bagni, M., Baldini, L., Bastieri, D., Bellardi, F., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bregeon, J., Brez, A., Bruel, P., Buehler, R., Buson, S., Cameron, R. A., Caraveo, P. A., Cavazzuti, E., Ceccanti, M., Chen, S., Cheung, C. C., Ciprini, S., Cognard, I., Cohen-Tanugi, J., Cutini, S., D???ammando, F., de la Torre Luque, P., de Palma, F., Digel, S. W., Dirirsa, F., Di Lalla, N., Di Venere, L., Dom??nguez, A., Fabiani, D., Ferrara, E. C., Fiori, A., Foglia, G., Fukazawa, Y., Fusco, P., Gargano, F., Gasparrini, D., Giroletti, M., Glanzman, T., Green, D., Griffin, S., Grondin, M. -H., Grove, J. E., Guillemot, L., Guiriec, S., Gustafsson, M., Hays, E., Horan, D., J??hannesson, G., Johnson, T. J., Kamae, T., Kerr, M., Kuss, M., Larsson, S., Latronico, L., Lemoine-Goumard, M., Li, J., Liodakis, I., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Maldera, S., Manfreda, A., Mart??-Devesa, G., Mazziotta, M. N., Menon, N., Mereu, I., Meyer, M., Michelson, P. F., Minuti, M., Mitthumsiri, W., Mizuno, T., Mongelli, M., Monzani, M. E., Moskalenko, I. V., Negro, M., Nuss, E., Ojha, R., Orienti, M., Orlando, E., Paccagnella, A., Paliya, V. S., Paneque, D., Pei, Z., Perkins, J. S., Pesce-Rollins, M., Pinchera, M., Piron, F., Poon, H., Porter, T. A., Primavera, R., Principe, G., Racusin, J. L., Rain??, S., Rando, R., Rani, B., Rapposelli, E., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Russell, J. J., Saggini, N., Saz Parkinson, P. M., Scolieri, N., Serini, D., Sgr??, C., Siskind, E. J., Smith, D. A., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Thayer, J. G., Thompson, D. J., Tibaldo, L., Torres, D. F., Tosti, G., Valverde, J., Vigiani, L., and Zaharijas, G.
Subjects: Calibration (statistics), Gamma-ray telescopes, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, 030226 pharmacology & pharmacy, 01 natural sciences, 7. Clean energy, law.invention, Telescope, 03 medical and health sciences, 0302 clinical medicine, law, 0103 physical sciences, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010303 astronomy & astrophysics, Condensed Matter::Quantum Gases, Physics, Gamma-ray astronomy, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, Space and Planetary Science, [SDU]Sciences of the Universe [physics], Calibration, Condensed Matter::Strongly Correlated Electrons, Astrophysics - Instrumentation and Methods for Astrophysics, Fermi Gamma-ray Space Telescope
Abstract: The Large Area Telescope (LAT), the primary instrument for the Fermi Gamma-ray Space Telescope (Fermi) mission, is an imaging, wide field-of-view, high-energy gamma-ray telescope, covering the energy range from 30 MeV to more than 300 GeV. We describe the performance of the instrument at the 10-year milestone. LAT performance remains well within the specifications defined during the planning phase, validating the design choices and supporting the compelling case to extend the duration of the Fermi mission. The details provided here will be useful when designing the next generation of high-energy gamma-ray observatories., 60 pages, 28 figures. Published in ApJS
Published: 2021

3. Revealing x-ray and gamma ray temporal and spectral similarities in the GRB 190829A afterglow

Author: K. Egberts, Davit Zargaryan, Axel Donath, A. W. Chen, G. Pühlhofer, M. de Bony de Lavergne, V. Poireau, P. T. O'Brien, P. A. Evans, Riaan Steenkamp, A. Lemiere, F. Eichhorn, Nu. Komin, J. Schäfer, Włodek Kluźniak, A. S. Seyffert, N. Shafi, Natalia Żywucka, Sebastian Panny, R. J. White, Domenico Tiziani, D. Malyshev, T. Chand, Jhilik Majumdar, V. Baghmanyan, Clemens Hoischen, A. A. Zdziarski, Jacco Vink, Alison Mitchell, Joachim Hahn, M. Füßling, C. van Eldik, J.F. Glicenstein, Lei Sun, P. Reichherzer, Jim Davies, A. Carosi, Zorawar Wadiasingh, Q. Remy, Anna Barnacka, A. Djannati-Ataï, A. Montanari, E. Moulin, M. de Naurois, Alexandre Marcowith, Arnaud Mares, Christoph Deil, Sabrina Casanova, Christo Venter, G. Peron, Garret Cotter, M. Hörbe, Dmitriy Kostunin, E. Ruiz-Velasco, Mohanraj Senniappan, Thomas Bylund, E. O. Angüner, S. Raab, Tadayuki Takahashi, F. Brun, R. J. Tuffs, B. Bi, H. Prokoph, C. van Rensburg, A. Zech, J. Muller, Monica Barnard, B. Peyaud, Kirsty Feijen, R. Rauth, Pierre Brun, Victor Doroshenko, Michael Punch, E. Kasai, Konrad Bernlöhr, M. Curyło, Stefano Gabici, Gianluca Giavitto, Frank M. Rieger, Michael Backes, Stefan Klepser, J.-P. Ernenwein, A. Dmytriiev, Mischa Breuhaus, J. Dyks, G. Emery, L. Olivera-Nieto, Tim Holch, S. Fegan, Samuel Zouari, M.-H. Grondin, L. Mohrmann, Stefan Ohm, I. Jung-Richardt, Markus Böttcher, K. Kosack, A. Reimer, G. Hermann, Marek Jamrozy, Regis Terrier, S. Pita, Markus Holler, Felix Jankowsky, Armelle Jardin-Blicq, E. de Ona Wilhelmi, A.M. Taylor, Carlo Romoli, J. Damascene Mbarubucyeye, Hester Schutte, Dieter Horns, Jonathan Mackey, Tom Armstrong, Helene Sol, Sylvia Zhu, P. J. Meintjes, Hambeleleni Ndiyavala, G. Fontaine, H. Odaka, Felix Aharonian, V. Barbosa Martins, Andreas Specovius, Michal Ostrowski, Johannes Veh, D. J. van der Walt, Yu Wun Wong, L. Oakes, C. Moore, J. Bolmont, D. Jankowsky, M. Seglar-Arroyo, Paolo Marchegiani, Rachel Simoni, R. Marx, S. Steinmassl, D. Glawion, Łukasz Stawarz, Manuel Meyer, Tomasz Bulik, Lente Dreyer, Andreas Quirrenbach, Sabrina Einecke, Iryna Lypova, Constantin Steppa, D. A. Prokhorov, M. Zacharias, Christopher J. Duffy, A. Wierzcholska, M. Tluczykont, Christian Stegmann, Stefan Wagner, Yasunobu Uchiyama, F. Schüssler, Yvonne Becherini, Jimmy N.S. Shapopi, C. Levy, Werner Hofmann, G. Lamanna, M. A. Kastendieck, James E. M. Watson, Ullrich Schwanke, G. Vasileiadis, Isak Delberth Davids, Misao Sasaki, Bruno Khelifi, M. Büchele, M. Lemoine-Goumard, J. Zorn, Elisabetta Bissaldi, Roberta Zanin, F. Ait Benkhali, L. Rinchiuso, M. Scalici, Y. A. Gallant, J. Devin, Jim Hinton, D. Berge, V. Sahakian, F. Werner, Andrea Santangelo, Stefan Funk, S. Sailer, Dmitry Khangulyan, Michael Kreter, Jacek Niemiec, D. A. Sanchez, A. Priyana Noel, C. Arcaro, Fabian Leuschner, J. H. E. Thiersen, M. Panter, U. Katz, K. Nakashima, Olaf Reimer, G. Martí-Devesa, H. Ashkar, Q. Piel, P. Morris, Gavin Rowell, M. Bryan, Kleopas Shiningayamwe, A. Yusafzai, Thomas Murach, G. Maurin, Maria Haupt, Heinrich J. Völk, M. Renaud, R. D. Parsons, Samuel Timothy Spencer, Lenka Tomankova, T. Tam, G. Fichet de Clairfontaine, A. Sinha, J.-P. Lenain, D. Huber, Rafal Moderski, S. Caroff, B. van Soelen, S. Chandra, R. Konno, L. Dirson, M. Tsirou, B. Rudak, V. Joshi, Thomas Lohse, L. Giunti, A. Nayerhoda, Hassan Abdalla, A. Fiasson, M. Spir-Jacob, V. Marandon, K. Katarzyński, P. Vincent, T. Tavernier, K. L. Page, Heiko Salzmann, Celine Armand, Catherine Boisson, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), 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 Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H.E.S.S., 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), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Gravitation and Astroparticle Physics Amsterdam, High Energy Astrophys. & Astropart. Phys (API, FNWI), H.E.S.S. Collaboration, and Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2)
Subjects: Photon, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, gamma ray: burst, 01 natural sciences, Luminosity, HESS, 0103 physical sciences, High Energy Stereoscopic System, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, energy: high, Multidisciplinary, X-ray: energy spectrum, 010308 nuclear & particles physics, photon, Gamma ray, trigger, Light curve, redshift, Redshift, Afterglow, collapse, gamma ray: VHE, HESS - Abteilung Hinton, spectral, Astrophysics - High Energy Astrophysical Phenomena, Gamma-ray burst, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], absorption
Abstract: An intrinsic gamma-ray burst afterglow Long gamma-ray bursts (GRBs) are emitted by relativistic jets generated during the collapse of a massive star in a distant galaxy. The GRB itself lasts only a few seconds but is followed by an afterglow that can persist for hours or days. The H.E.S.S. Collaboration observed the afterglow of GRB 190829A, a nearby long GRB. The proximity of this burst allowed it to be detected at tera–electron volt energies that would otherwise be absorbed in the intergalactic medium. By analyzing the spectrum and light curve at x-ray and gamma-ray wavelengths, the authors show that the afterglow cannot be explained by standard models. Science , abe8560, this issue p. 1081
Published: 2021

4. First fermi-LAT solar flare catalog

Author: Sara Buson, F. D'Ammando, T. A. Porter, L. Di Venere, S. Rainò, F. Piron, Yasushi Fukazawa, J. W. Hewitt, J. Li, Luca Baldini, E. J. Siskind, Marcello Giroletti, S. Maldera, D. Gasparrini, P. Lubrano, P. Fusco, Sylvain Guiriec, F. Fana Dirirsa, Seb. Funk, E. Cavazzuti, Gloria Spandre, Nicola Omodei, Mn Mazziotta, P. F. Michelson, S. J. Fegan, Soebur Razzaque, E. Hays, Ferdinando Giordano, M. N. Lovellette, D. Costantin, Carmelo Sgrò, F. Longo, Marco Ajello, K. S. Wood, F. de Palma, E. Troja, T. Mizuno, Regina Caputo, G. Zaharijas, F. Gargano, David Paneque, N. Di Lalla, Elisabetta Bissaldi, D. Green, R. Rando, C. C. Cheung, J. Valverde, Bindu Rani, M. Kuss, Luca Latronico, D. Tak, D. Bastieri, R. Bonino, G. Jóhannesson, E. Orlando, M. Negro, A. Berretta, A. Reimer, Z. Pei, G. Chiaro, P. Spinelli, M. E. Monzani, Melissa Pesce-Rollins, Vahé Petrosian, Giacomo Principe, D. Serini, Alberto Manfreda, S. Larsson, Massimo Persic, M. Orienti, M. Razzano, Miloš Kovačević, A. Morselli, R. A. Cameron, G. Martí-Devesa, P. Bruel, S. Cutini, R. Desiante, J. L. Racusin, I. Mereu, Roger Blandford, Igor V. Moskalenko, Olaf Reimer, D. Horan, R. Bellazzini, Ajello, M., Baldini, L., Bastieri, D., Bellazzini, R., Berretta, A., Bissaldi, E., Blandford, R. D., Bonino, R., Bruel, P., Buson, S., Cameron, R. A., Caputo, R., Cavazzuti, E., Cheung, C. C., Chiaro, G., Costantin, D., Cutini, S., D'Ammando, F., De Palma, F., Desiante, R., Di Lalla, N., Di Venere, L., Fana Dirirsa, F., Fegan, S. J., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giordano, F., Giroletti, M., Green, D., Guiriec, S., Hays, E., Hewitt, J. W., Horan, D., Johannesson, G., Kovac'Evic, M., Kuss, M., Larsson, S., Latronico, L., Li, J., Longo, F., Lovellette, M. N., Lubrano, P., Maldera, S., Manfreda, A., Marti-Devesa, G., Mazziotta, M. N., Mereu, I., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Omodei, N., Orienti, M., Orlando, E., Paneque, D., Pei, Z., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Racusin, J. L., Raino, S., Rando, R., Rani, B., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Serini, D., Sgro, C., Siskind, E. J., Spandre, G., Spinelli, P., Tak, D., Troja, E., Valverde, J., Wood, K., Zaharijas, G., Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), D???ammando, F., de Palma, F., J??hannesson, G., Kovac???evic???, M., Mart??-Devesa, G., Rain??, S., and Sgr??, C.
Subjects: Solar gamma-ray emission, Gamma-ray telescopes, Astrophysics::High Energy Astrophysical Phenomena, Population, Astrophysics, Solar flares, Gamma-ray sources, Catalogs, 01 natural sciences, law.invention, Telescope, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, 010306 general physics, education, 010303 astronomy & astrophysics, Physics, education.field_of_study, Solar flare, Astronomy and Astrophysics, Solar flares, Solar gamma-ray emission, Gamma-ray sources, Gamma-ray telescopes, Catalogs, Solar physics, Light curve, Solar cycle, Gamma-ray source, 13. Climate action, Space and Planetary Science, Physics::Space Physics, Gamma-ray telescope, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope, Flare
Abstract: We present the first Fermi - Large Area Telescope (LAT) solar flare catalog covering the 24 th solar cycle. This catalog contains 45 Fermi -LAT solar flares (FLSFs) with emission in the gamma-ray energy band (30 MeV - 10 GeV) detected with a significance greater than 5 sigma over the years 2010-2018. A subsample containing 37 of these flares exhibit delayed emission beyond the prompt-impulsive hard X-ray phase with 21 flares showing delayed emission lasting more than two hours. No prompt-impulsive emission is detected in four of these flares. We also present in this catalog the observations of GeV emission from 3 flares originating from Active Regions located behind the limb (BTL) of the visible solar disk. We report the light curves, spectra, best proton index and localization (when possible) for all the FLSFs. The gamma-ray spectra is consistent with the decay of pions produced by >300 MeV protons. This work contains the largest sample of high-energy gamma-ray flares ever reported and provides the unique opportunity to perform population studies on the different phases of the flare and thus allowing to open a new window in solar physics.
Published: 2021

5. Detection of the Crab Nebula with the 9.7 m prototype Schwarzschild-Couder telescope

Author: Gagik Tovmassian, F. Di Pierro, V. Masone, M. Ambrosio, C. B. Adams, N. La Palombara, A. Brill, Amy Furniss, K. Meagher, Marcos Santander, Nicola Giglietto, Olivier Hervet, Wystan Benbow, C. Bonavolontà, S. I. Mognet, Maria Ionica, A. Bouvier, S. P. Wakely, Vladimir Vassiliev, F. R. Pantaleo, Fernando Garfias, Alasdair E. Gent, Akira Okumura, S. Loporchio, A. Kuznetsov, J. Thornhill, J. H. Buckley, R. A. Cameron, L. Stiaccini, E. Fiandrini, E. Pueschel, S. Schlenstedt, R. J. White, L. Di Venere, Thomas Meures, G. Ambrosi, Arturo Iriarte, Daniel Nieto, M. Valentino, Riccardo Paoletti, Q. Feng, S. J. Fegan, A. Boiano, V. J. Guarino, David Kieda, G. Hughes, Julien Rousselle, G. Sironi, Justin Vandenbroucke, V. Vagelli, R. Shang, Enrico Giro, B. A. W. Mode, T. B. Humensky, A. Petrashyk, W. Jin, Maria Magdalena González, N. Otte, M. Caprai, Stefan Funk, M. Bitossi, D. Ribeiro, Karen Byrum, B. Bertucci, G. Pareschi, Andrea Rugliancich, Manel Errando, D. Depaoli, E. Roache, J. Ruíz-Díaz-Soto, T. C. Arlen, Michael Schneider, Jason John Watson, T. Nguyen, B. Stevenson, Jonathan Biteau, L. Tosti, Reshmi Mukherjee, David A. Williams, Jonathan S. Lapington, P. Kaaret, C. A. Johnson, Elisabetta Bissaldi, Gordon T. Richards, P. Fortin, Carla Aramo, Francesco Giordano, Salvo Scuderi, G. M. Foote, Hiroyasu Tajima, Richard Bose, Jamie Holder, R. Halliday, P. Yu, Rodolfo Canestrari, Ruben Alfaro, D. Ross, A. Zink, P. Wilcox, P. I. Batista, Matthew Wood, P. T. Reynolds, B. Kim, F. Licciulli, L. P. Taylor, A. M. Brown, M. Capasso, Corbin Covault, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Cherenkov Telescope Array, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cosmic ray, Field of view, 01 natural sciences, law.invention, Telescope, Primary mirror, law, Observatory, pixel, 0103 physical sciences, optical, Astrophysics::Solar and Stellar Astrophysics, photomultiplier: silicon, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], mirror, 010303 astronomy & astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cherenkov radiation, Astrophysics::Galaxy Astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, resolution, Astronomy and Astrophysics, radiation: Cherenkov, aberration, cascade, observatory, Crab Nebula, gamma ray: emission, cosmic radiation, atmosphere, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], statistical
Abstract: The Schwarzschild-Couder Telescope (SCT) is a telescope concept proposed for the Cherenkov Telescope Array. It employs a dual-mirror optical design to remove comatic aberrations over an $8^{\circ}$ field of view, and a high-density silicon photomultiplier camera (with a pixel resolution of 4 arcmin) to record Cherenkov emission from cosmic ray and gamma-ray initiated particle cascades in the atmosphere. The prototype SCT (pSCT), comprising a 9.7 m diameter primary mirror and a partially instrumented camera with 1536 pixels, has been constructed at the Fred Lawrence Whipple Observatory. The telescope was inaugurated in January 2019, with commissioning continuing throughout 2019. We describe the first campaign of observations with the pSCT, conducted in January and February of 2020, and demonstrate the detection of gamma-ray emission from the Crab Nebula with a statistical significance of $8.6\sigma$., Comment: 13 pages, 12 figures, 3 tables, submitted to Astroparticle Physics
Published: 2021

6. Rapid Spectral Variability of a Giant Flare from a Magnetar in NGC 253

Author: A. J. van der Horst, Rachel Hamburg, Daniela Huppenkothen, J. A. Kennea, Chryssa Kouveliotou, A. Tohuvavohu, Colleen A. Wilson-Hodge, Dale D. Kocevski, S. I. Chastain, Ersin Gogus, Matthew G. Baring, Eric Burns, George Younes, Sylvain Guiriec, Elisabetta Bissaldi, Oliver J. Roberts, J. J. DeLaunay, J. D. Linford, P. N. Bhat, Michael S. Briggs, and Péter Veres
Subjects: Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Multidisciplinary, 010504 meteorology & atmospheric sciences, Astrophysics::High Energy Astrophysical Phenomena, Local Group, FOS: Physical sciences, Plasma, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Magnetar, 01 natural sciences, Spectral line, Galaxy, law.invention, Neutron star, Relativistic plasma, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Flare
Abstract: Magnetars are neutron stars with extremely strong magnetic fields (1013 to 1015 gauss)1,2, which episodically emit X-ray bursts approximately 100 milliseconds long and with energies of 1040 to 1041 erg. Occasionally, they also produce extremely bright and energetic giant flares, which begin with a short (roughly 0.2 seconds), intense flash, followed by fainter, longer-lasting emission that is modulated by the spin period of the magnetar3,4 (typically 2 to 12 seconds). Over the past 40 years, only three such flares have been observed in our local group of galaxies3–6, and in all cases the extreme intensity of the flares caused the detectors to saturate. It has been proposed that extragalactic giant flares are probably a subset7–11 of short γ-ray bursts, given that the sensitivity of current instrumentation prevents us from detecting the pulsating tail, whereas the initial bright flash is readily observable out to distances of around 10 to 20 million parsecs. Here we report X-ray and γ-ray observations of the γ-ray burst GRB 200415A, which has a rapid onset, very fast time variability, flat spectra and substantial sub-millisecond spectral evolution. These attributes match well with those expected for a giant flare from an extragalactic magnetar12, given that GRB 200415A is directionally associated13 with the galaxy NGC 253 (roughly 3.5 million parsecs away). The detection of three-megaelectronvolt photons provides evidence for the relativistic motion of the emitting plasma. Radiation from such rapidly moving gas around a rotating magnetar may have generated the rapid spectral evolution that we observe. Observations of a giant flare associated with the starburst galaxy NGC 253 suggest that the flare is probably associated with relativistic plasma in the magnetic field of a magnetar.
Published: 2021
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7. Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation

Author: J.-P. Lenain, A. Domínguez, Jonathan Ivor Davies, T. Armstrong, A. A. Zdziarski, F. Gianotti, M. Balbo, E. O. Angüner, M. Marculewicz, Alasdair E. Gent, Alice Donini, Olivier Hervet, Henry Przybilski, Giacomo Principe, G. Leto, M. Peresano, Stefano Covino, P. A. Caraveo, Gianpiero Tagliaferri, D. de Martino, V. V. Vassiliev, D. Cauz, F. R. Pantaleo, U. Barres de Almeida, Pietro Bruno, E. Lindfors, M. Zavrtanik, G. Hughes, Miriam Lucio Martinez, P. Bordas, Y. Suda, G. S. Varner, R. Rando, K. Cerny, S. Pita, Csaba Balázs, E. Fiandrini, Michael Backes, Tomohiko Oka, Massimo Persic, Andrea Chiavassa, Johannes Veh, A. Stamerra, Fabrizio Tavecchio, B. Biasuzzi, Michael Punch, Soebur Razzaque, F. D'Ammando, P. I. Batista, Bruna Bertucci, F. Longo, Francesco Gabriele Saturni, Michael G. Burton, Bohdan Hnatyk, P. Sangiorgi, E. M. Santos, D. Nosek, Gagik Tovmassian, J. L. Dournaux, Pedro L. Luque-Escamilla, A. Aguirre-Santaella, M. Orienti, Lluis Font, Andreas Quirrenbach, Philippe Laporte, Ralf Kissmann, Francesco Lucarelli, K. Noda, I. Jiménez Martínez, G. Romeo, Wystan Benbow, P. Romano, B. Bi, J. Grube, H.-S. Zechlin, Giacomo Bonnoli, Martin White, J. P. Osborne, Enrico Cascone, Marek Jamrozy, C. Alispach, Miroslav Pech, O. Cuevas, Petr Schovanek, K. Hayashi, V. I. Zhdanov, Javier Coronado-Blázquez, D. Medina Miranda, Barbara Balmaverde, E. de Ona Wilhelmi, Frank M. Rieger, A. Shalchi, J. M. Paredes, Ruben Alfaro, N. Giglietto, Diego Falceta-Gonçalves, Helene Sol, Rodolfo Carosi, Ayan Acharyya, Dominik Elsässer, S. Vercellone, D. Pimentel, T. Mizuno, Alessandro Bruno, Juan Abel Barrio, K. Kosack, Mauro Orlandini, Rodrigo Guedes Lang, P. Marquez, Adrian Biland, Y. Kobayashi, Nicholas F. H Tothill, M. de Naurois, Daniele Spiga, Lili Yang, L. Tibaldo, Pavel Horvath, M. Lopez, I. Sadeh, Marek Nikolajuk, F. Schüssler, Reshmi Mukherjee, Gianpaolo Vettolani, Jürgen Knödlseder, Daniel Nieto, R. Hnatyk, German Martinez, Diego F. Torres, Farinaldo S. Queiroz, N. Parmiggiani, G. Lamanna, Marcos Santander, S. Fegan, I. Vovk, M. Sánchez-Conde, Wiphu Rujopakarn, Norita Kawanaka, R. C. Shellard, Michael C. B. Ashley, J. Jurysek, Francisco J. Franco, Samuel Timothy Spencer, E. Rebert, J. Morales Merino, M. Pecimotika, Marco Berton, Regis Terrier, G. A. Beck, Carlos Díaz, J. L. Contreras, G. Zaharijas, R. Moderski, José-María Martí, A. Insolia, D. Zavrtanik, K. Kohri, Ladislav Chytka, T. Grabarczyk, A. Zech, M. Garczarczyk, Anastasia Sokolenko, J. Lefaucheur, R. A. Cameron, Moritz Hütten, S. Karkar, K. Pfrang, V. Poireau, Asaf Pe'er, A. Reimer, Fabio Acero, L. Freixas Coromina, David Sánchez, Jonathan S. Lapington, Konstantinos N. Gourgouliatos, J.R. Hörandel, Mario Buscemi, Francesco Dazzi, Abelardo Moralejo, J. Bolmont, R. White, A. Rosales de Leon, J. Prast, Sabrina Einecke, Roberto Aloisio, Yvonne Becherini, Andreas Specovius, Shohei Yanagita, Juan Cortina, Miroslav Hrabovsky, Petr Janecek, D. Depaoli, Lucas Taylor, U. Schwanke, H. Abdalla, S. Recchia, Manuela Mallamaci, M. K. Daniel, Q. Feng, L. Baroncelli, Hiromitsu Takahashi, Susumu Inoue, U. Straumann, Masatoshi Ohishi, Roberto Capuzzo-Dolcetta, Nu. Komin, Federico Russo, R. de Cássia dos Anjos, Y. Ohira, Ferdinando Giordano, Nagisa Hiroshima, E. Garcia, Gavin Rowell, V. Bozhilov, Maxim V. Barkov, Dario Hrupec, I. Oya, F. Salesa Greus, Anna Wolter, M. Živec, R. Belmont, R. Adam, T. Reposeur, J. Rico, A. W. Chen, G. Pühlhofer, H. Prokoph, Stefan Wagner, F. Di Pierro, Fabrizio Bocchino, M. de Bony de Lavergne, A. Kong, Masha Chernyakova, M. Pohl, M. Vazquez Acosta, A. Nagai, A. Brill, Dusan Mandat, Jonathan Biteau, Martin Makariev, Catherine Boisson, E. Lyard, Gilles Maurin, H. Martínez-Huerta, Oscar Blanch, Bernd Schleicher, M. Minev, A. Berti, James E. M. Watson, Talvikki Hovatta, M. Valentino, Luis Ángel Tejedor, Elena Amato, M. V. Fonseca, Anderson Caproni, L. Mohrmann, P. Reichherzer, R. L. C. Starling, M. Seglar Arroyo, E. Orlando, B. Rudak, G. Emery, J. A. Green, Salvo Scuderi, M. Prouza, Tom Richtler, Bartłomiej Pilszyk, A. Carosi, Jacek Niemiec, Wolfgang Rhode, G. Ambrosi, D. Ribeiro, A. Wierzcholska, A. Ghalumyan, Eugenio Bottacini, Sylvain Chaty, A. Baquero Larriva, Olaf Reimer, D. Horan, Fabian Leuschner, T. Di Girolamo, Alessandro Caccianiga, Martin Will, Saverio Lombardi, A. Fiasson, Mitsunari Takahashi, J. J. Rodríguez Vázquez, B. De Lotto, V. De Caprio, Stefano Truzzi, Dirk L. Hoffmann, M. Vecchi, Antonio Pagliaro, Jose J. Gonzalez, Wenwu Tian, R. Della Ceca, J. Becerra González, S. Nozaki, T. Vuillaume, S. L. Lloyd, Maria Ionica, Elisabetta Bissaldi, Petr Travnicek, Y. Ascasibar, Carlo Vigorito, F. Tuossenel, Malcolm Fairbairn, O. Martinez, Marco Iarlori, Serena Loporchio, Alessandro Costa, R. Pillera, A. Morselli, M. Heller, Jaime Rosado, E. M. de Gouveia Dal Pino, V. Vitale, A. M. Brown, E. Molina, Takashi Saito, A. De Angelis, Thomas Murach, R. A. Ong, J. Bregeon, P. T. O'Brien, Mikael Jacquemont, P. Cristofari, Francesco Conte, Lab Saha, R. Walter, Vitalii Sliusar, W. Jin, Vito Conforti, N. Produit, H. Siejkowski, Lovro Pavletić, Carole Mundell, G. Rodriguez Fernandez, J. F. Glicenstein, Paresh Sharma, C. Delgado, Vladimír Karas, Luca Foffano, J. Granot, Manuel Meyer, Reiko Orito, G. Umana, G. Chiaro, D. Tonev, R. Wiemann, G. Manicò, J.C. Rodriguez Ramirez, Luca Tosti, Markus Böttcher, Andrea Bulgarelli, C. Díaz-Bahamondes, I. Jung-Richardt, Karol Seweryn, P. Piatteli, Agnieszka Slowikowska, Jan Ebr, M. Ostrowski, J. L. Rodriguez, D. della Volpe, Ermanno Pietropaolo, M. Caprai, T. Montaruli, A. Lopez, Rodrigo Nemmen, R. R. Prado, L. Arrabito, Atreyee Sinha, C. van Eldik, Serguei Vorobiov, Hidetoshi Sano, J. Alfaro, Sabrina Casanova, G. Maneva, B. Vallage, Valentina Fioretti, Carmelo Evoli, P. Kaaret, B. A. W. Mode, Agnieszka Majczyna, Sebastian Diebold, A. Scherer, F. de Palma, S. Hernández Cadena, V. Beshley, T.R.N. Ekoume, David A. Williams, M. Capasso, A. Halim, Alison Mitchell, Tomislav Terzić, Paola Grandi, Lorenzo Amati, Christopher Eckner, David Gascon, K. Nishijima, J. Becker Tjus, B. Khélifi, G. Galanti, Jamie Holder, Vincenzo Rizi, Orel Gueta, Daniele Gaggero, F. Pintore, Utane Sawangwit, Vassil Verguilov, Heide Costantini, F. Arqueros, Daniel Kerszberg, P. M. Chadwick, D. Zarić, Marc Ribó, Olga Sergijenko, Dario Grasso, Hidetoshi Kubo, Daniela Dorner, T. Stolarczyk, M. Gaug, R. Alves Batista, Elisa Bernardini, Vikram V. Dwarkadas, Jim Hinton, Jelena Strišković, Andreu Sanuy, M. Servillat, V. Barbosa Martins, Giovanni Bonanno, S. Gunji, R. Wischnewski, S. Sarkar, Gianluca Giavitto, Takeshi Nakamori, M. Palatka, Maria Letizia Pumo, Camilla Maggio, M. Zacharias, Katsuaki Asano, Valerio Vagelli, Anton Dmytriiev, Ryo Yamazaki, M. Vacula, P. Goldoni, Gilles Fontaine, Hiroshi Muraishi, D. Mazin, Samo Stanič, G. Ghirlanda, M. Polo, M. Nievas, M. Lemoine-Goumard, Oleh Petruk, Jose Miguel Miranda, M. Iori, A. Marcowith, Y. Renier, Satoshi Fukami, M. Roncadelli, F. Leone, Takanori Yoshikoshi, Ana Luiza d'Ávila Viana, Y. Fukui, Max Harvey, Sera Markoff, I. Agudo, P. Temnikov, Vincenzo Testa, R. López-Coto, J.D. Mbarubucyeye, Tjark Miener, David Paneque, V. Gammaldi, T. Hassan Collado, H. Abe, L. Bonneau Arbeletche, S. D. Vergani, Sasa Micanovic, P. Vallania, Marina Manganaro, Elena Torresi, M. Giarrusso, G. Ferrand, Paweł Świerk, B. Patricelli, Matteo Cerruti, N. La Palombara, D. Morcuende-Parrilla, V. de Souza, Toshiaki Inada, Yasushi Fukazawa, Werner Hofmann, Michele Doro, E. Pueschel, A. Araudo, E. Sciacca, Thomas Lohse, A. Djannati-Ataï, Abdalla, H., Abe, H., Acero, F., Acharyya, A., Adam, R., Agudo, I., Aguirre-Santaella, A., Alfaro, R., Alfaro, J., Alispach, C., Aloisio, R., Alves Batista, R., Amati, L., Amato, E., Ambrosi, G., Ang??ner, E. O., Araudo, A., Armstrong, T., Arqueros, F., Arrabito, L., Asano, K., Ascas??bar, Y., Ashley, M., Backes, M., Balazs, C., Balbo, M., Balmaverde, B., Baquero Larriva, A., Barbosa Martins, V., Barkov, M., Baroncelli, L., Barres de Almeida, U., Barrio, J. A., Batista, P. -I., Becerra Gonz??lez, J., Becherini, Y., Beck, G., Becker Tjus, J., Belmont, R., Benbow, W., Bernardini, E., Berti, A., Berton, M., Bertucci, B., Beshley, V., Bi, B., Biasuzzi, B., Biland, A., Bissaldi, E., Biteau, J., Blanch, O., Bocchino, F., Boisson, C., Bolmont, J., Bonanno, G., Bonneau Arbeletche, L., Bonnoli, G., Bordas, P., Bottacini, E., B??ttcher, M., Bozhilov, V., Bregeon, J., Brill, A., Brown, A. M., Bruno, P., Bruno, A., Bulgarelli, A., Burton, M., Buscemi, M., Caccianiga, A., Cameron, R., Capasso, M., Caprai, M., Caproni, A., Capuzzo-Dolcetta, R., Caraveo, P., Carosi, R., Carosi, A., Casanova, S., Cascone, E., Cauz, D., Cerny, K., Cerruti, M., Chadwick, P., Chaty, S., Chen, A., Chernyakova, M., Chiaro, G., Chiavassa, A., Chytka, L., Conforti, V., Conte, F., Contreras, J. L., Coronado-Blazquez, J., Cortina, J., Costa, A., Costantini, H., Covino, S., Cristofari, P., Cuevas, O., D'Ammando, F., Daniel, M. K., Davies, J., Dazzi, F., De Angelis, A., de Bony de Lavergne, M., De Caprio, V., de C??ssia dos Anjos, R., de Gouveia Dal Pino, E. M., De Lotto, B., De Martino, D., de Naurois, M., de O??a Wilhelmi, E., De Palma, F., de Souza, V., Delgado, C., Della Ceca, R., della Volpe, D., Depaoli, D., Di Girolamo, T., Di Pierro, F., D??az, C., D??az-Bahamondes, C., Diebold, S., Djannati-Ata??, A., Dmytriiev, A., Dom??nguez, A., Donini, A., Dorner, D., Doro, M., Dournaux, J., Dwarkadas, V. V., Ebr, J., Eckner, C., Einecke, S., Ekoume, T. R. N., Els??sser, D., Emery, G., Evoli, C., Fairbairn, M., Falceta-Goncalves, D., Fegan, S., Feng, Q., Ferrand, G., Fiandrini, E., Fiasson, A., Fioretti, V., Foffano, L., Fonseca, M. V., Font, L., Fontaine, G., Franco, F. J., Freixas Coromina, L., Fukami, S., Fukazawa, Y., Fukui, Y., Gaggero, D., Galanti, G., Gammaldi, V., Garcia, E., Garczarczyk, M., Gascon, D., Gaug, M., Gent, A., Ghalumyan, A., Ghirlanda, G., Gianotti, F., Giarrusso, M., Giavitto, G., Giglietto, N., Giordano, F., Glicenstein, J., Goldoni, P., Gonz??lez, J. M., Gourgouliatos, K., Grabarczyk, T., Grandi, P., Granot, J., Grasso, D., Green, J., Grube, J., Gueta, O., Gunji, S., Halim, A., Harvey, M., Hassan Collado, T., Hayashi, K., Heller, M., Hern??ndez Cadena, S., Hervet, O., Hinton, J., Hiroshima, N., Hnatyk, B., Hnatyk, R., Hoffmann, D., Hofmann, W., Holder, J., Horan, D., H??randel, J., Horvath, P., Hovatta, T., Hrabovsky, M., Hrupec, D., Hughes, G., H??tten, M., Iarlori, M., Inada, T., Inoue, S., Insolia, A., Ionica, M., Iori, M., Jacquemont, M., Jamrozy, M., Janecek, P., Jim??nez Mart??nez, I., Jin, W., Jung-Richardt, I., Jurysek, J., Kaaret, P., Karas, V., Karkar, S., Kawanaka, N., Kerszberg, D., Kh??lifi, B., Kissmann, R., Kn??dlseder, J., Kobayashi, Y., Kohri, K., Komin, N., Kong, A., Kosack, K., Kubo, H., La Palombara, N., Lamanna, G., Lang, R. G., Lapington, J., Laporte, P., Lefaucheur, J., Lemoine-Goumard, M., Lenain, J., Leone, F., Leto, G., Leuschner, F., Lindfors, E., Lloyd, S., Lohse, T., Lombardi, S., Longo, F., Lopez, A., L??pez, M., L??pez-Coto, R., Loporchio, S., Lucarelli, F., Luque-Escamilla, P. L., Lyard, E., Maggio, C., Majczyna, A., Makariev, M., Mallamaci, M., Mandat, D., Maneva, G., Manganaro, M., Manic??, G., Marcowith, A., Marculewicz, M., Markoff, S., Marquez, P., Mart??, J., Martinez, O., Mart??nez, M., Mart??nez, G., Mart??nez-Huerta, H., Maurin, G., Mazin, D., Mbarubucyeye, J. D., Medina Miranda, D., Meyer, M., Micanovic, S., Miener, T., Minev, M., Miranda, J. M., Mitchell, A., Mizuno, T., Mode, B., Moderski, R., Mohrmann, L., Molina, E., Montaruli, T., Moralejo, A., Morales Merino, J., Morcuende-Parrilla, D., Morselli, A., Mukherjee, R., Mundell, C., Murach, T., Muraishi, H., Nagai, A., Nakamori, T., Nemmen, R., Niemiec, J., Nieto, D., Nievas, M., Nikolajuk, M., Nishijima, K., Noda, K., Nosek, D., Nozaki, S., O'Brien, P., Ohira, Y., Ohishi, M., Oka, T., Ong, R. A., Orienti, M., Orito, R., Orlandini, M., Orlando, E., Osborne, J. P., Ostrowski, M., Oya, I., Pagliaro, A., Palatka, M., Paneque, D., Pantaleo, F. R., Paredes, J. M., Parmiggiani, N., Patricelli, B., Pavleti??, L., Pe'Er, A., Pech, M., Pecimotika, M., Peresano, M., Persic, M., Petruk, O., Pfrang, K., Piatteli, P., Pietropaolo, E., Pillera, R., Pilszyk, B., Pimentel, D., Pintore, F., Pita, S., Pohl, M., Poireau, V., Polo, M., Prado, R. R., Prast, J., Principe, G., Produit, N., Prokoph, H., Prouza, M., Przybilski, H., Pueschel, E., P??hlhofer, G., Pumo, M. L., Punch, M., Queiroz, F., Quirrenbach, A., Rando, R., Razzaque, S., Rebert, E., Recchia, S., Reichherzer, P., Reimer, O., Reimer, A., Renier, Y., Reposeur, T., Rhode, W., Ribeiro, D., Rib??, M., Richtler, T., Rico, J., Rieger, F., Rizi, V., Rodriguez, J., Rodriguez Fernandez, G., Rodriguez Ramirez, J. C., Rodr??guez V??zquez, J. J., Romano, P., Romeo, G., Roncadelli, M., Rosado, J., Rosales de Leon, A., Rowell, G., Rudak, B., Rujopakarn, W., Russo, F., Sadeh, I., Saha, L., Saito, T., Salesa Greus, F., Sanchez, D., S??nchez-Conde, M., Sangiorgi, P., Sano, H., Santander, M., Santos, E. M., Sanuy, A., Sarkar, S., Saturni, F. G., Sawangwit, U., Scherer, A., Schleicher, B., Schovanek, P., Schussler, F., Schwanke, U., Sciacca, E., Scuderi, S., Seglar Arroyo, M., Sergijenko, O., Servillat, M., Seweryn, K., Shalchi, A., Sharma, P., Shellard, R. C., Siejkowski, H., Sinha, A., Sliusar, V., Slowikowska, A., Sokolenko, A., Sol, H., Specovius, A., Spencer, S., Spiga, D., Stamerra, A., Stani??, S., Starling, R., Stolarczyk, T., Straumann, U., Stri??kovi??, J., Suda, Y., wierk, P., Tagliaferri, G., Takahashi, H., Takahashi, M., Tavecchio, F., Taylor, L., Tejedor, L. A., Temnikov, P., Terrier, R., Terzic, T., Testa, V., Tian, W., Tibaldo, L., Tonev, D., Torres, D. F., Torresi, E., Tosti, L., Tothill, N., Tovmassian, G., Travnicek, P., Truzzi, S., Tuossenel, F., Umana, G., Vacula, M., Vagelli, V., Valentino, M., Vallage, B., Vallania, P., van Eldik, C., Varner, G. S., Vassiliev, V., V??zquez Acosta, M., Vecchi, M., Veh, J., Vercellone, S., Vergani, S., Verguilov, V., Vettolani, G. P., Viana, A., Vigorito, C. F., Vitale, V., Vorobiov, S., Vovk, I., Vuillaume, T., Wagner, S. J., Walter, R., Watson, J., White, M., White, R., Wiemann, R., Wierzcholska, A., Will, M., Williams, D. A., Wischnewski, R., Wolter, A., Yamazaki, R., Yanagita, S., Yang, L., Yoshikoshi, T., Zacharias, M., Zaharijas, G., Zaric, D., Zavrtanik, M., Zavrtanik, D., Zdziarski, A. A., Zech, A., Zechlin, H., Zhdanov, V. I., ivec, M., Comisión Nacional de Investigación Científica y Tecnológica (Chile), Ministry of Education, Youth and Sports (Czech Republic), Academy of Finland, Istituto Nazionale di Astrofisica, National Science Centre (Poland), Slovenian Research Agency, European Commission, Ministerio de Economía y Competitividad (España), Ministerio de Ciencia e Innovación (España), Junta de Andalucía, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CTA, UAM. Departamento de Física Teórica, Batista, R. A., Anguner, E. O., Ascasibar, Y., Larriva, A. B., Martins, V. B., De Almeida, U. B., Gonzalez, J. B., Tjus, J. B., Arbeletche, L. B., Bottcher, M., Angelis, A. D., De Lavergne, M. D. B., Caprio, V. D., De Dos Anjos, R. C., De Gouveia Dal Pino, E. M., Lotto, B. D., Martino, D. D., De Naurois, M., Wilhelmi, E. D. O., DE PALMA, F., De Souza, V., Ceca, R. D., Volpe, D. D., Girolamo, T. D., Pierro, F. D., Diaz, C., Diaz-Bahamondes, C., Djannati-Atai, A., Dominguez, A., Elsasser, D., Coromina, L. F., Gonzalez, J. M., Collado, T. H., Cadena, S. H., Horandel, J., Hutten, M., Martinez, I. J., Khelifi, B., Knodlseder, J., Palombara, N. L., Lopez, M., Lopez-Coto, R., Manico, G., Marti, J., Martinez, M., Martinez, G., Martinez-Huerta, H., Miranda, D. M., Merino, J. M., Pavletic, L., Puhlhofer, G., Ribo, M., Fernandez, G. R., Ramirez, J. C. R., Vazquez, J. J. R., De Leon, A. R., Greus, F. S., Sanchez-Conde, M., Arroyo, M. S., Stanic, S., Striskovic, J., Swierk, P., Eldik, C. V., Acosta, M. V., Zivec, M., Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Abdalla H., Abe H., Acero F., Acharyya A., Adam R., Agudo I., Aguirre-Santaella A., Alfaro R., Alfaro J., Alispach C., Aloisio R., Batista R.A., Amati L., Amato E., Ambrosi G., Anguner E.O., Araudo A., Armstrong T., Arqueros F., Arrabito L., Asano K., Ascasibar Y., Ashley M., Backes M., Balazs C., Balbo M., Balmaverde B., Larriva A.B., Martins V.B., Barkov M., Baroncelli L., De Almeida U.B., Barrio J.A., Batista P.-I., Gonzalez J.B., Becherini Y., Beck G., Tjus J.B., Belmont R., Benbow W., Bernardini E., Berti A., Berton M., Bertucci B., Beshley V., Bi B., Biasuzzi B., Biland A., Bissaldi E., Biteau J., Blanch O., Bocchino F., Boisson C., Bolmont J., Bonanno G., Arbeletche L.B., Bonnoli G., Bordas P., Bottacini E., Bottcher M., Bozhilov V., Bregeon J., Brill A., Brown A.M., Bruno P., Bruno A., Bulgarelli A., Burton M., Buscemi M., Caccianiga A., Cameron R., Capasso M., Caprai M., Caproni A., Capuzzo-Dolcetta R., Caraveo P., Carosi R., Carosi A., Casanova S., Cascone E., Cauz D., Cerny K., Cerruti M., Chadwick P., Chaty S., Chen A., Chernyakova M., Chiaro G., Chiavassa A., Chytka L., Conforti V., Conte F., Contreras J.L., Coronado-Blazquez J., Cortina J., Costa A., Costantini H., Covino S., Cristofari P., Cuevas O., D'Ammando F., Daniel M.K., Davies J., Dazzi F., Angelis A.D., De Lavergne M.D.B., Caprio V.D., De Dos Anjos R.C., De Gouveia Dal Pino E.M., Lotto B.D., Martino D.D., De Naurois M., Wilhelmi E.D.O., Palma F.D., De Souza V., Delgado C., Ceca R.D., Volpe D.D., Depaoli D., Girolamo T.D., Pierro F.D., Diaz C., Diaz-Bahamondes C., Diebold S., Djannati-Atai A., Dmytriiev A., Dominguez A., Donini A., Dorner D., Doro M., Dournaux J., Dwarkadas V.V., Ebr J., Eckner C., Einecke S., Ekoume T.R.N., Elsasser D., Emery G., Evoli C., Fairbairn M., Falceta-Goncalves D., Fegan S., Feng Q., Ferrand G., Fiandrini E., Fiasson A., Fioretti V., Foffano L., Fonseca M.V., Font L., Fontaine G., Franco F.J., Coromina L.F., Fukami S., Fukazawa Y., Fukui Y., Gaggero D., Galanti G., Gammaldi V., Garcia E., Garczarczyk M., Gascon D., Gaug M., Gent A., Ghalumyan A., Ghirlanda G., Gianotti F., Giarrusso M., Giavitto G., Giglietto N., Giordano F., Glicenstein J., Goldoni P., Gonzalez J.M., Gourgouliatos K., Grabarczyk T., Grandi P., Granot J., Grasso D., Green J., Grube J., Gueta O., Gunji S., Halim A., Harvey M., Collado T.H., Hayashi K., Heller M., Cadena S.H., Hervet O., Hinton J., Hiroshima N., Hnatyk B., Hnatyk R., Hoffmann D., Hofmann W., Holder J., Horan D., Horandel J., Horvath P., Hovatta T., Hrabovsky M., Hrupec D., Hughes G., Hutten M., Iarlori M., Inada T., Inoue S., Insolia A., Ionica M., Iori M., Jacquemont M., Jamrozy M., Janecek P., Martinez I.J., Jin W., Jung-Richardt I., Jurysek J., Kaaret P., Karas V., Karkar S., Kawanaka N., Kerszberg D., Khelifi B., Kissmann R., Knodlseder J., Kobayashi Y., Kohri K., Komin N., Kong A., Kosack K., Kubo H., Palombara N.L., Lamanna G., Lang R.G., Lapington J., Laporte P., Lefaucheur J., Lemoine-Goumard M., Lenain J., Leone F., Leto G., Leuschner F., Lindfors E., Lloyd S., Lohse T., Lombardi S., Longo F., Lopez A., Lopez M., Lopez-Coto R., Loporchio S., Lucarelli F., Luque-Escamilla P.L., Lyard E., Maggio C., Majczyna A., Makariev M., Mallamaci M., Mandat D., Maneva G., Manganaro M., Manico G., Marcowith A., Marculewicz M., Markoff S., Marquez P., Marti J., Martinez O., Martinez M., Martinez G., Martinez-Huerta H., Maurin G., Mazin D., Mbarubucyeye J.D., Miranda D.M., Meyer M., Micanovic S., Miener T., Minev M., Miranda J.M., Mitchell A., Mizuno T., Mode B., Moderski R., Mohrmann L., Molina E., Montaruli T., Moralejo A., Merino J.M., Morcuende-Parrilla D., Morselli A., Mukherjee R., Mundell C., Murach T., Muraishi H., Nagai A., Nakamori T., Nemmen R., Niemiec J., Nieto D., Nievas M., Nikolajuk M., Nishijima K., Noda K., Nosek D., Nozaki S., O'Brien P., Ohira Y., Ohishi M., Oka T., Ong R.A., Orienti M., Orito R., Orlandini M., Orlando E., Osborne J.P., Ostrowski M., Oya I., Pagliaro A., Palatka M., Paneque D., Pantaleo F.R., Paredes J.M., Parmiggiani N., Patricelli B., Pavletic L., Pe'Er A., Pech M., Pecimotika M., Peresano M., Persic M., Petruk O., Pfrang K., Piatteli P., Pietropaolo E., Pillera R., Pilszyk B., Pimentel D., Pintore F., Pita S., Pohl M., Poireau V., Polo M., Prado R.R., Prast J., Principe G., Produit N., Prokoph H., Prouza M., Przybilski H., Pueschel E., Puhlhofer G., Pumo M.L., Punch M., Queiroz F., Quirrenbach A., Rando R., Razzaque S., Rebert E., Recchia S., Reichherzer P., Reimer O., Reimer A., Renier Y., Reposeur T., Rhode W., Ribeiro D., Ribo M., Richtler T., Rico J., Rieger F., Rizi V., Rodriguez J., Fernandez G.R., Ramirez J.C.R., Vazquez J.J.R., Romano P., Romeo G., Roncadelli M., Rosado J., De Leon A.R., Rowell G., Rudak B., Rujopakarn W., Russo F., Sadeh I., Saha L., Saito T., Greus F.S., Sanchez D., Sanchez-Conde M., Sangiorgi P., Sano H., Santander M., Santos E.M., Sanuy A., Sarkar S., Saturni F.G., Sawangwit U., Scherer A., Schleicher B., Schovanek P., Schussler F., Schwanke U., Sciacca E., Scuderi S., Arroyo M.S., Sergijenko O., Servillat M., Seweryn K., Shalchi A., Sharma P., Shellard R.C., Siejkowski H., Sinha A., Sliusar V., Slowikowska A., Sokolenko A., Sol H., Specovius A., Spencer S., Spiga D., Stamerra A., Stanic S., Starling R., Stolarczyk T., Straumann U., Striskovic J., Suda Y., Swierk P., Tagliaferri G., Takahashi H., Takahashi M., Tavecchio F., Taylor L., Tejedor L.A., Temnikov P., Terrier R., Terzic T., Testa V., Tian W., Tibaldo L., Tonev D., Torres D.F., Torresi E., Tosti L., Tothill N., Tovmassian G., Travnicek P., Truzzi S., Tuossenel F., Umana G., Vacula M., Vagelli V., Valentino M., Vallage B., Vallania P., Eldik C.V., Varner G.S., Vassiliev V., Acosta M.V., Vecchi M., Veh J., Vercellone S., Vergani S., Verguilov V., Vettolani G.P., Viana A., Vigorito C.F., Vitale V., Vorobiov S., Vovk I., Vuillaume T., Wagner S.J., Walter R., Watson J., White M., White R., Wiemann R., Wierzcholska A., Will M., Williams D.A., Wischnewski R., Wolter A., Yamazaki R., Yanagita S., Yang L., Yoshikoshi T., Zacharias M., Zaharijas G., Zaric D., Zavrtanik M., Zavrtanik D., Zdziarski A.A., Zech A., Zechlin H., Zhdanov V.I., Zivec M., ITA, USA, GBR, FRA, DEU, ESP, AUS, BRA, BGR, CHL, HRV, FIN, JPN, IRL, MEX, NAM, NLD, POL, CZE, SVN, SWE, CHE, UKR, Astronomy, High Energy Astrophys. & Astropart. Phys (API, FNWI), and Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Gamma ray Astronomy, Cherenkov Telescope Array, axions, MATÉRIA ESCURA, redshift: dependence, Astronomy, Gamma ray experiments, gamma ray experiments, Astrophysics, 01 natural sciences, Cosmology, Observatory, cosmological model: parameter space, gamma ray experiment, High Energy Astrophysical Phenomena (astro-ph.HE), astro-ph.HE, Physics, Cherenkov telescopes, IACT technique, Gamma rays, Cosmic rays, new physics, 4. Education, Settore FIS/01 - Fisica Sperimentale, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma-ray astronomy, violation: Lorentz, 3. Good health, observatory, Extragalactic background light, astro-ph.CO, axion-like particles, Física nuclear, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics, gamma ray: propagation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Active galactic nucleus, Axions, Astrophysics::High Energy Astrophysical Phenomena, Dark matter, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, invariance: Lorentz, jet: relativistic, dark matter: halo, 0103 physical sciences, active galactic nuclei, extragalactic magnetic fields, AGN, Blazar, background, 010308 nuclear & particles physics, Física, Astronomy and Astrophysics, sensitivity, axion, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], absorption, statistical, Blazars, Telescopes
Abstract: Full list of authors: Abdalla, H.; Abe, H.; Acero, F.; Acharyya, A.; Adam, R.; Agudo, I; Aguirre-Santaella, A.; Alfaro, R.; Alfaro, J.; Alispach, C.; Aloisio, R.; Batista, R. Alves; Amati, L.; Amato, E.; Ambrosi, G.; Anguner, E. O.; Araudo, A.; Armstrong, T.; Arqueros, F.; Arrabito, L.; Asano, K.; Ascasibar, Y.; Ashley, M.; Backes, M.; Balazs, C.; Balbo, M.; Balmaverde, B.; Baquero Larriva, A.; Martins, V. Barbosa; Barkov, M.; Baroncelli, L.; de Almeida, U. Barres; Barrio, J. A.; Batista, P-, I; Becerra Gonzalez, J.; Becherini, Y.; Beck, G.; Tjus, J. Becker; Belmont, R.; Benbow, W.; Bernardini, E.; Berti, A.; Berton, M.; Bertucci, B.; Beshley, V; Bi, B.; Biasuzzi, B.; Biland, A.; Bissaldi, E.; Biteau, J.; Blanch, O.; Bocchino, F.; Boisson, C.; Bolmont, J.; Bonanno, G.; Arbeletche, L. Bonneau; Bonnoli, G.; Bordas, P.; Bottacini, E.; Bottcher, M.; Bozhilov, V; Bregeon, J.; Brill, A.; Brown, A. M.; Bruno, P.; Bruno, A.; Bulgarelli, A.; Burton, M.; Buscemi, M.; Caccianiga, A.; Cameron, R.; Capasso, M.; Caprai, M.; Caproni, A.; Capuzzo-Dolcetta, R.; Caraveo, P.; Carosi, R.; Carosi, A.; Casanova, S.; Cascone, E.; Cauz, D.; Cerny, K.; Cerruti, M.; Chadwick, P.; Chaty, S.; Chen, A.; Chernyakova, M.; Chiaro, G.; Chiavassa, A.; Chytka, L.; Conforti, V; Conte, F.; Contreras, J. L.; Coronado-Blazquez, J.; Cortina, J.; Costa, A.; Costantini, H.; Covino, S.; Cristofari, P.; Cuevas, O.; D'Ammando, F.; Daniel, M. K.; Davies, J.; Dazzi, F.; De Angelis, A.; de Lavergne, M. de Bony; De Caprio, V; dos Anjos, R. de Cassia; Dal Pino, E. M. de Gouveia; De Lotto, B.; De Martino, D.; de Naurois, M.; Wilhelmi, E. de Ona; De Palma, F.; de Souza, V; Delgado, C.; Della Ceca, R.; della Volpe, D.; Depaoli, D.; Di Girolamo, T.; Di Pierro, F.; Diaz, C.; Diaz-Bahamondes, C.; Diebold, S.; Djannati-Atai, A.; Dmytriiev, A.; Dominguez, A.; Donini, A.; Dorner, D.; Doro, M.; Dournaux, J.; Dwarkadas, V. V.; Ebr, J.; Eckner, C.; Einecke, S.; Ekoume, T. R. N.; Elsaesser, D.; Emery, G.; Evoli, C.; Fairbairn, M.; Falceta-Goncalves, D.; Fegan, S.; Feng, Q.; Ferrand, G.; Fiandrini, E.; Fiasson, A.; Fioretti, V; Foffano, L.; Fonseca, M., V; Font, L.; Fontaine, G.; Franco, F. J.; Freixas Coromina, L.; Fukami, S.; Fukazawa, Y.; Fukui, Y.; Gaggero, D.; Galanti, G.; Gammaldi, V; Garcia, E.; Garczarczyk, M.; Gascon, D.; Gaug, M.; Gent, A.; Ghalumyan, A.; Ghirlanda, G.; Gianotti, F.; Giarrusso, M.; Giavitto, G.; Giglietto, N.; Giordano, F.; Glicenstein, J.; Goldoni, P.; Gonzalez, J. M.; Gourgouliatos, K.; Grabarczyk, T.; Grandi, P.; Granot, J.; Grasso, D.; Green, J.; Grube, J.; Gueta, O.; Gunji, S.; Halim, A.; Harvey, M.; Collado, T. Hassan; Hayashi, K.; Heller, M.; Cadena, S. Hernandez; Hervet, O.; Hinton, J.; Hiroshima, N.; Hnatyk, B.; Hnatyk, R.; Hoffmann, D.; Hofmann, W.; Holder, J.; Horan, D.; Horandel, J.; Horvath, P.; Hovatta, T.; Hrabovsky, M.; Hrupec, D.; Hughes, G.; Hutten, M.; Iarlori, M.; Inada, T.; Inoue, S.; Insolia, A.; Ionica, M.; Iori, M.; Jacquemont, M.; Jamrozy, M.; Janecek, P.; Jimenez Martinez, I; Jin, W.; Jung-Richardt, I; Jurysek, J.; Kaaret, P.; Karas, V; Karkar, S.; Kawanaka, N.; Kerszberg, D.; Khelifi, B.; Kissmann, R.; Knodlseder, J.; Kobayashi, Y.; Kohri, K.; Komin, N.; Kong, A.; Kosack, K.; Kubo, H.; La Palombara, N.; Lamanna, G.; Lang, R. G.; Lapington, J.; Laporte, P.; Lefaucheur, J.; Lemoine-Goumard, M.; Lenain, J.; Leone, F.; Leto, G.; Leuschner, F.; Lindfors, E.; Lloyd, S.; Lohse, T.; Lombardi, S.; Longo, F.; Lopez, A.; Lopez, M.; Lopez-Coto, R.; Loporchio, S.; Lucarelli, F.; Luque-Escamilla, P. L.; Lyard, E.; Maggio, C.; Majczyna, A.; Makariev, M.; Mallamaci, M.; Mandat, D.; Maneva, G.; Manganaro, M.; Manico, G.; Marcowith, A.; Marculewicz, M.; Markoff, S.; Marquez, P.; Marti, J.; Martinez, O.; Martinez, M.; Martinez, G.; Martinez-Huerta, H.; Maurin, G.; Mazin, D.; Mbarubucyeye, J. D.; Miranda, D. Medina; Meyer, M.; Micanovic, S.; Miener, T.; Minev, M.; Miranda, J. M.; Mitchell, A.; Mizuno, T.; Mode, B.; Moderski, R.; Mohrmann, L.; Molina, E.; Montaruli, T.; Moralejo, A.; Morales Merino, J.; Morcuende-Parrilla, D.; Morselli, A.; Mukherjee, R.; Mundell, C.; Murach, T.; Muraishi, H.; Nagai, A.; Nakamori, T.; Nemmen, R.; Niemiec, J.; Nieto, D.; Nievas, M.; Nikolajuk, M.; Nishijima, K.; Noda, K.; Nosek, D.; Nozaki, S.; Ohira, Y.; Ohishi, M.; Oka, T.; Ong, R. A.; Orienti, M.; Orito, R.; Orlandini, M.; Orlando, E.; Osborne, J. P.; Ostrowski, M.; Oya, I; Pagliaro, A.; Palatka, M.; Paneque, D.; Pantaleo, F. R.; Paredes, J. M.; Parmiggiani, N.; Patricelli, B.; Pavletic, L.; Pe'er, A.; Pech, M.; Pecimotika, M.; Peresano, M.; Persic, M.; Petruk, O.; Pfrang, K.; Piatteli, P.; Pietropaolo, E.; Pillera, R.; Pilszyk, B.; Pimentel, D.; Pintore, F.; Pita, S.; Pohl, M.; Poireau, V; Polo, M.; Prado, R. R.; Prast, J.; Principe, G.; Produit, N.; Prokoph, H.; Prouza, M.; Przybilski, H.; Pueschel, E.; Puehlhofer, G.; Pumo, M. L.; Punch, M.; Queiroz, F.; Quirrenbach, A.; Rando, R.; Razzaque, S.; Rebert, E.; Recchia, S.; Reichherzer, P.; Reimer, O.; Reimer, A.; Renier, Y.; Reposeur, T.; Rhode, W.; Ribeiro, D.; Ribo, M.; Richtler, T.; Rico, J.; Rieger, F.; Rizi, V; Rodriguez, J.; Fernandez, G. Rodriguez; Ramirez, J. C. Rodriguez; Rodriguez Vazquez, J. J.; Romano, P.; Romeo, G.; Roncadelli, M.; Rosado, J.; de Leon, A. Rosales; Rowell, G.; Rudak, B.; Rujopakarn, W.; Russo, F.; Sadeh, I; Saha, L.; Saito, T.; Greus, F. Salesa; Sanchez, D.; Sanchez-Conde, M.; Sangiorgi, P.; Sano, H.; Santander, M.; Santos, E. M.; Sanuy, A.; Sarkar, S.; Saturni, F. G.; Sawangwit, U.; Scherer, A.; Schleicher, B.; Schovanek, P.; Schussler, F.; Schwanke, U.; Sciacca, E.; Scuderi, S.; Arroyo, M. Seglar; Sergijenko, O.; Servillat, M.; Seweryn, K.; Shalchi, A.; Sharma, P.; Shellard, R. C.; Siejkowski, H.; Sinha, A.; Sliusar, V; Slowikowska, A.; Sokolenko, A.; Sol, H.; Specovius, A.; Spencer, S.; Spiga, D.; Stamerra, A.; Starling, R.; Stolarczyk, T.; Straumann, U.; Striskovic, J.; Suda, Y.; Tagliaferri, G.; Takahashi, H.; Takahashi, M.; Tavecchio, F.; Taylor, L.; Tejedor, L. A.; Temnikov, P.; Terrier, R.; Terzic, T.; Testa, V; Tian, W.; Tibaldo, L.; Tonev, D.; Torres, D. F.; Torresi, E.; Tosti, L.; Tothill, N.; Tovmassian, G.; Travnicek, P.; Truzzi, S.; Tuossenel, F.; Umana, G.; Vacula, M.; Vagelli, V.; Valentino, M.; Vallage, B.; Vallania, P.; van Eldik, C.; Varner, G. S.; Vassiliev, V.; Vazquez Acosta, M.; Vecchi, M.; Veh, J.; Vercellone, S.; Vergani, S.; Verguilov, V.; Vettolani, G. P.; Viana, A.; Vigorito, C. F.; Vitale, V.; Vorobiov, S.; Vovk, I; Vuillaume, T.; Wagner, S. J.; Walter, R.; Watson, J.; White, M.; White, R.; Wiemann, R.; Wierzcholska, A.; Will, M.; Williams, D. A.; Wischnewski, R.; Wolter, A.; Yamazaki, R.; Yanagita, S.; Yang, L.; Yoshikoshi, T.; Zacharias, M.; Zaharijas, G.; Zaric, D.; Zavrtanik, M.; Zavrtanik, D.; Zdziarski, A. A.; Zech, A.; Zechlin, H.; Zhdanov, V., I; Zivec, M., The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for γ astronomy, provides unique capabilities to address significant open questions in astrophysics, cosmology, and fundamental physics. We study some of the salient areas of γ cosmology that can be explored as part of the Key Science Projects of CTA, through simulated observations of active galactic nuclei (AGN) and of their relativistic jets. Observations of AGN with CTA will enable a measurement of γ absorption on the extragalactic background light with a statistical uncertainty below 15% up to a redshift z=2 and to constrain or detect γ halos up to intergalactic-magnetic-field strengths of at least 0.3 pG . Extragalactic observations with CTA also show promising potential to probe physics beyond the Standard Model. The best limits on Lorentz invariance violation from γ astronomy will be improved by a factor of at least two to three. CTA will also probe the parameter space in which axion-like particles could constitute a significant fraction, if not all, of dark matter. We conclude on the synergies between CTA and other upcoming facilities that will foster the growth of γ cosmology. © 2021 IOP Publishing Ltd and Sissa Medialab., We gratefully acknowledge financial support from the following agencies and organizations: State Committee of Science of Armenia, Armenia; The Australian Research Council, Astronomy Australia Ltd, The University of Adelaide, Australian National University, Monash University, The University of New South Wales, The University of Sydney, Western Sydney University, Australia; Federal Ministry of Education, Science and Research, and Innsbruck University, Austria; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Ministry of Science, Technology, Innovations and Communications (MCTIC), Brasil; Ministry of Education and Science, National RI Roadmap Project DO1-153/28.08.2018, Bulgaria; The Natural Sciences and Engineering Research Council of Canada and the Canadian Space Agency, Canada; CONICYT-Chile grants CATA AFB 170002, ANID PIA/APOYO AFB 180002, ACT 1406, FONDECYT-Chile grants, 1161463, 1170171, 1190886, 1171421, 1170345, 1201582, Gemini-ANID 32180007, Chile; Croatian Science Foundation, Rudjer Boskovic Institute, University of Osijek, University of Rijeka, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Zagreb, Faculty of Electrical Engineering and Computing, Croa tia; Ministry of Education, Youth and Sports, MEYS M2015046, LM2018105, LTT17006, EU/MEYS CZ.02.1.01/0.0/0.0/16_013/0001403, CZ.02.1.01/0.0/0.0/18_046/0016007 and CZ.02.1.01/0.0/0.0/16_019/0000754, Czech Republic; Academy of Finland (grant nr.317636 and 320045), Finland; Ministry of Higher Education and Research, CNRS-INSU and CNRS-IN2P3, CEA-Irfu, ANR, Regional Council Ile de France, Labex ENIGMASS, OCEVU, OSUG2020 and P2IO, France; Max Planck Society, BMBF, DESY, Helmholtz Association, Germany; Department of Atomic Energy, Department of Science and Technology, India; Istituto Nazionale di Astrofisica (INAF), Istituto Nazionale di Fisica Nucleare (INFN), MIUR, Istituto Nazionale di Astrofisica (INAF-OABRERA) Grant Fondazione Cariplo/Regione Lombardia ID 2014-1980/RST_ERC, Italy; ICRR, University of Tokyo, JSPS, MEXT, Japan; Netherlands Research School for Astronomy (NOVA), Netherlands Organization for Scientific Research (NWO), Netherlands; University of Oslo, Norway; Ministry of Science and Higher Education, DIR/WK/2017/12, the National Centre for Research and Development and the National Science Centre, UMO-2016/22/M/ST9/00583, Poland; Slovenian Research Agency, grants P1-0031, P1-0385, I0-0033, J1-9146, J1-1700, N1-0111, and the Young Researcher program, Slovenia; South African Department of Science and Technology and National Research Foundation through the South African Gamma-Ray Astronomy Programme, South Africa; The Spanish groups acknowledge the Spanish Ministry of Science and Innovation and the Spanish Research State Agency (AEI) through grants AYA2016-79724-C4-1-P, AYA2016-80889-P, AYA2016-76012-C3-1-P, BES-2016-076342, FPA2017-82729-C6-1-R, FPA2017-82729-C6-2-R, FPA2017-82729-C6-3-R, FPA2017-82729-C6-4-R, FPA2017-82729-C6-5-R, FPA2017-82729-C6-6-R, PGC2018-095161-B-I00, PGC2018-095512-B-I00, PID2019-107988GB-C22; the “Centro de Excelencia Severo Ochoa” program through grants no. SEV-2016-0597, SEV-2016-0588, SEV-2017-0709, CEX2019-000920-S; the “Unidad de Excelencia María de Maeztu” program through grant no. MDM-2015-0509; the “Ramón y Cajal” programme through grants RYC-2013-14511, RYC-2017-22665; and the MultiDark Consolider Network FPA2017-90566-REDC. They also acknowledge the Atracción de Talento contract no. 2016-T1/TIC-1542 granted by the Comunidad de Madrid; the “Postdoctoral Junior Leader Fellowship” programme from La Caixa Bank ing Foundation, grants no. LCF/BQ/LI18/11630014 and LCF/BQ/PI18/11630012; the “Programa Operativo” FEDER 2014-2020, Consejería de Economía y Conocimiento de la Junta de Andalucía (Ref. 1257737), PAIDI 2020 (Ref. P18-FR-1580) and Universidad de Jaén; “Programa Operativo de Crecimiento Inteligente” FEDER 2014-2020 (Ref. ESFRI-2017-IAC-12), Ministerio de Ciencia e Innovación, 15% co-financed by Consejería de Economía, Industria, Comercio y Conocimiento del Gobierno de Canarias; the Spanish AEI EQC2018-005094-P FEDER 2014-2020; the European Union’s “Horizon 2020” research and innovation programme under Marie Skłodowska-Curie grant agreement no. 665919; and the ESCAPE project with grant no. GA:824064; Swedish Research Council, Royal Physiographic Society of Lund, Royal Swedish Academy of Sciences, The Swedish National Infrastructure for Computing (SNIC) at Lunarc (Lund), Sweden; State Secretariat for Education, Research and Innovation (SERI) and Swiss National Science Foundation (SNSF), Switzerland; Durham University, Leverhulme Trust, Liverpool University, University of Leicester, University of Oxford, Royal Soci ety, Science and Technology Facilities Council, UK; U.S. National Science Foundation, U.S. Department of Energy, Argonne National Laboratory, Barnard College, University of California, University of Chicago, Columbia University, Georgia Institute of Technology, Institute for Nuclear and Particle Astrophysics (INPAC-MRPI program), Iowa State University, the Smithsonian Institution, Washington University McDonnell Center for the Space Sciences, The University of Wisconsin and the Wisconsin Alumni Research Foundation, USA. The research leading to these results has received funding from the European Union’s Seventh Framework Programme (FP7/2007-2013) under grant agreements No 262053 and No 317446. This project is receiving funding from the European Union’s Horizon 2020 research and innovation programs under agreement No 676134. The research leading to these results has received funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement GammaRayCascades No 843800. The Fermi LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat à l’Energie Atomique and the Centre National de la Recherche Scientifique / Institut National de Physique Nucléaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Études Spatiales in France. This work performed in part under DOE Contract DE-AC02-76SF00515.
Published: 2021

8. On the Existence of the Plateau Emission in High-Energy Gamma-Ray Burst LightCurves observed byFermi-LAT

Author: Giacomo Vianello, Vahé Petrosian, Shigehiro Nagataki, Nicola Omodei, M. G. Dainotti, Richard Willingale, Gokul P. Srinivasaragavan, F. Longo, P. T. O'Brien, X. Hernandez, Magnus Axelsson, Elisabetta Bissaldi, Z. Nuygen, Dainotti, M. G., Omodei, N., Srinivasaragavan, G. P., Vianello, G., Willingale, R., O???brien, P., Nagataki, S., Petrosian, V., Nuygen, Z., Hernandez, X., Axelsson, M., Bissaldi, E., and Longo, F.
Subjects: High energy, 010504 meteorology & atmospheric sciences, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Plateau (mathematics), 01 natural sciences, 7. Clean energy, law.invention, Telescope, Spitzer Space Telescope, law, 0103 physical sciences, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Light curve, On board, 13. Climate action, Space and Planetary Science, Gamma-ray bursts, Gamma-ray burst, Astrophysics - High Energy Astrophysical Phenomena, Fermi Gamma-ray Space Telescope
Abstract: The Large Area Telescope (LAT) on board the \Fermi Gamma-ray Space Telescope (\Fermi) shows long-lasting high-energy emission in many gamma-ray bursts (GRBs), similar to X-ray afterglows observed by the Neil Gehrels Swift Observatory \citep[\textit{Swift};][]{gehrels2004}. Some LAT light curves (LCs) show a late-time flattening reminiscent of X-ray plateaus. We explore the presence of plateaus in LAT temporally extended emission analyzing GRBs from the second \lat GRB Catalog \citep[2FLGC;][]{Ajello2019apj} from 2008 to May 2016 with known redshifts, and check whether they follow closure relations corresponding to 4 distinct astrophysical environments predicted by the external forward shock (ES) model. We find that three LCs can be fit by the same phenomenological model used to fit X-ray plateaus \citep{Willingale2007} and show tentative evidence for the existence of plateaus in their high-energy extended emission. The most favorable scenario is a slow cooling regime, whereas the preferred density profile for each GRBs varies from a constant density ISM to a $r^{-2}$ wind environment. We also compare the end time of the plateaus in $\gamma$-rays and X-rays using a statistical comparison with 222 \textit{Swift} GRBs with plateaus and known redshifts from January 2005 to August 2019. Within this comparison, the case of GRB 090510 shows an indication of chromaticity at the end time of the plateau. Finally, we update the 3-D fundamental plane relation among the rest frame end time of the plateau, its correspondent luminosity, and the peak prompt luminosity for 222 GRBs observed by \textit{Swift}. We find that these three LAT GRBs follow this relation., Comment: 28 pages, 10 pictures, 3 Tables to appear on ApJ Supplement
Published: 2021
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9. Verification of the Optical System of the 9.7-m Prototype Schwarzschild-Couder Telescope

Author: C. Aramo, Thomas Brian Humensky, Giovanni Pareschi, L. Stiaccini, Carmela Bonavolontà, A. Rugliancich, M. Caprai, E. Fiandrini, David Kieda, Daniel Nieto, A. Furniss, M. Bitossi, G. Sironi, S. J. Fegan, Wystan Benbow, B. Stevenson, C. Adams, Markus Garczarczyk, Justin Vandenbroucke, Riccardo Paoletti, B. Kim, Elisabetta Bissaldi, L. Di Venere, A. Petrashyk, R. A. Cameron, M. Valentino, Vladimir Vassiliev, Gagik Tovmassian, A. Boiano, S. Loporchio, Corbin Covault, Nicola Giglietto, P. Wilcox, A. Iriarte, Francesco Giordano, Reshmi Mukherjee, F. Garfias, A. Brill, S. P. Wakely, T. Meures, P. Kaarat, R. Shang, Michele Limon, K. Powell, Marcos Santander, B. A. W. Mode, F. R. Pantaleo, D. A. Williams, Julien Rousselle, G. Hughes, O. Hervet, V. Masone, R. Halliday, R. Bose, Q. Feng, Jade Powell, J. H. Buckley, Salvo Scuderi, S. Schlenstedt, M. Ambrosio, Peter Y. Yu, M. Capasso, Akira Okumura, F. Licciulli, A. Gent, J. Ruíz-Díaz-Soto, L. P. Taylor, B. Bertucci, M. Ionica, N. Otte, D. Ribeiro, E. Roache, N. La Palombara, Giovanni Ambrosi, W. Jin, Karen Byrum, L. Tosti, Ruben Alfaro, Maria Magdalena González, V. Vagelli, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), ITA, USA, FRA, DEU, ESP, JPN, and MEX
Subjects: Cherenkov Telescope Array, 01 natural sciences, localization, law.invention, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), law, Observatory, pixel, optical, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], mirror, media_common, Physics, cascade: atmosphere, Astrophysics::Instrumentation and Methods for Astrophysics, imaging, Active optics, alignment, Schwarzschild, observatory, Aplanatic Optical System, duality, history, Astrophysics - Instrumentation and Methods for Astrophysics, performance, Gamma Ray, Imaging Cherenkov Telescopes, Aperture, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Cherenkov counter: atmosphere, 010309 optics, Telescope, Optics, 0103 physical sciences, Angular resolution, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), Cherenkov radiation, business.industry, beam: width, 010401 analytical chemistry, resolution, sensitivity, 0104 chemical sciences, messenger, angular resolution, Sky, gamma ray, business
Abstract: For the first time in the history of ground-based $\gamma$-ray astronomy, the on-axis performance of the dual mirror, aspheric, aplanatic Schwarzschild-Couder optical system has been demonstrated in a $9.7$-m aperture imaging atmospheric Cherenkov telescope. The novel design of the prototype Schwarzschild-Couder Telescope (pSCT) is motivated by the need of the next-generation Cherenkov Telescope Array (CTA) observatory to have the ability to perform wide ($\geq 8^{\circ}$) field-of-view observations simultaneously with superior imaging of atmospheric cascades (resolution of $0.067^{\circ}$ per pixel or better). The pSCT design, if implemented in the CTA installation, has the potential to improve significantly both the $\gamma$-ray angular resolution and the off-axis sensitivity of the observatory, reaching nearly the theoretical limit of the technique and thereby making a major impact on the CTA observatory sky survey programs, follow-up observations of multi-messenger transients with poorly known initial localization, as well as on the spatially resolved spectroscopic studies of extended $\gamma$-ray sources. This contribution reports on the initial alignment procedures and point-spread-function results for the challenging segmented aspheric primary and secondary mirrors of the pSCT., Comment: 19 pages, 11 figures, proceedings for SPIE Optical Engineering + Applications, 2020, Online Only
Published: 2020

10. The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope

Author: Michael Kreter, Carmelo Sgrò, Riccardo Rando, Leonid Petrov, E. Nuss, M. Kuss, Nicola Omodei, M. Orienti, Diego F. Torres, M. Yassine, E. Hays, Francesco Massaro, G. Jóhannesson, L. S. Ojha, S. Harita, Frank K. Schinzel, Marco Ajello, E. Orlando, S. Maldera, B. Lott, R. Itoh, Jean Ballet, S. Garrappa, G. Martí-Devesa, F. Piron, G. M. Madejski, Francesco Longo, Manuel Meyer, Eleonora Torresi, R. Bonino, Giacomo Principe, Stefano Ciprini, J. Li, E. Troja, Marcello Giroletti, Nestor Mirabal, A. Reimer, Stefan Funk, P. van Zyl, Melissa Pesce-Rollins, Eugenio Bottacini, J. F. Ormes, P. Fusco, F. Gargano, Elliott D. Bloom, C. Leto, F. Fana Dirirsa, N. Di Lalla, C. C. Cheung, J. Valverde, Stefan Larsson, Sylvain Guiriec, Alberto Manfreda, Denis Bastieri, Z. Pei, A. Morselli, Igor V. Moskalenko, Soebur Razzaque, P. de la Torre Luque, Mn Mazziotta, Elizabeth C. Ferrara, Olaf Reimer, Justin D. Finke, I. A. Grenier, M. Razzano, F. de Palma, Filippo D'Ammando, D. J. Suson, D. Costantin, Nicola Giglietto, Yutaro Tachibana, Vaidehi S. Paliya, F. Loparco, R. Angioni, E. Cavazzuti, M. N. Lovellette, P. Lubrano, J. Becerra González, H. Poon, Gloria Spandre, E. J. Siskind, Giulia Migliori, Aaron Dominguez, Elisabetta Bissaldi, R. A. Cameron, David A. Green, Rodrigo Nemmen, D. J. Thompson, D. Horan, P. Bruel, Magnus Axelsson, R. de Menezes, Anna Franckowiak, S. Buson, Ioannis Liodakis, S. Rainò, Tsunefumi Mizuno, Yasushi Fukazawa, P. Spinelli, Ronaldo Bellazzini, Francesco Giordano, Fabio Cafardo, Bindu Rani, Dario Gasparrini, Felicia Krauss, Abhishek Desai, Sina Chen, L. Di Venere, Roopesh Ojha, H. A. Peña-Herazo, Massimo Persic, D. Serini, Guido Barbiellini, I. Mereu, S. Cutini, M. E. Monzani, M. Negro, Miloš Kovačević, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, National Aeronautics and Space Administration (US), Department of Energy (US), Commissariat à l'Ènergie Atomique et aux Ènergies Alternatives (France), Centre National de la Recherche Scientifique (France), Institut National de Physique Nucléaire et de Physique des Particules (France), Agenzia Spaziale Italiana, Istituto Nazionale di Fisica Nucleare, Ministry of Education, Culture, Sports, Science and Technology (Japan), High Energy Accelerator Research Organization (Japan), Japan Aerospace Exploration Agency, Knut and Alice Wallenberg Foundation, Swedish Research Council, Swedish National Space Board, Istituto Nazionale di Astrofisica, Ajello, M., Angioni, R., Axelsson, M., Ballet, J., Barbiellini, G., Bastieri, D., Becerra Gonzalez, J., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Bruel, P., Buson, S., Cafardo, F., Cameron, R. A., Cavazzuti, E., Chen, S., Cheung, C. C., Ciprini, S., Costantin, D., Cutini, S., D'Ammando, F., De La Torre Luque, P., De Menezes, R., De Palma, F., Desai, A., Di Lalla, N., Di Venere, L., Dominguez, A., Dirirsa, F. F., Ferrara, E. C., Finke, J., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Garrappa, S., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guiriec, S., Harita, S., Hays, E., Horan, D., Itoh, R., Johannesson, G., Kovac'Evic', M., Krauss, F., Kreter, M., Kuss, M., Larsson, S., Leto, C., Li, J., Liodakis, I., Longo, F., Loparco, F., Lott, B., Lovellette, M. N., Lubrano, P., Madejski, G. M., Maldera, S., Manfreda, A., Marti-Devesa, G., Massaro, F., Mazziotta, M. N., Mereu, I., Meyer, M., Migliori, G., Mirabal, N., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nemmen, R., Nuss, E., Ojha, L. S., Ojha, R., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paliya, V. S., Pei, Z., Peña-Herazo, H., Persic, M., Pesce-Rollins, M., Petrov, L., Piron, F., Poon, H., Principe, G., Raino, S., Rando, R., Rani, B., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Schinzel, F. K., Serini, D., Sgro, C., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tachibana, Y., Thompson, D. J., Torres, D. F., Torresi, E., Troja, E., Valverde, J., Van Zyl, P., Yassine, M., Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), and 33379009 - Kreter, Michael
Subjects: galaxies [Gamma rays], Astrophysics, Blazar, 01 natural sciences, law.invention, observations [Gamma rays], Spitzer Space Telescope, Astrophysical jet, law, Relativistic jet, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Quasar, Physics, education.field_of_study, Galaxies: active, Quasars: general, Gamma rays: galaxies, Gamma-ray source, BL Lacertae objects, Astrophysics - High Energy Astrophysical Phenomena, Active galactic nucleus, active [Galaxies], Astrophysics::High Energy Astrophysical Phenomena, Population, BL Lacertae objetcs: general, Astrophysics::Cosmology and Extragalactic Astrophysics, Gamma rays: observations, Telescope, 0103 physical sciences, Active galactic nuclei, Blazars, Gamma-ray sources, Relativistic jets, Quasars, education, Astrophysics::Galaxy Astrophysics, 010308 nuclear & particles physics, general [Quasars], Astronomy and Astrophysics, general [BL Lacertae objetcs], [SDU]Sciences of the Universe [physics], Galaxies: jets, Space and Planetary Science, jets [Galaxies], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope
Abstract: The fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains 2863 objects located at high Galactic latitudes (|b| > 10°). It includes 85% more sources than the previous 3LAC catalog based on 4 yr of data. AGNs represent at least 79% of the high-latitude sources in the fourth Fermi-Large Area Telescope Source Catalog (4FGL), which covers the energy range from 50 MeV to 1 TeV. In addition, 344 gamma-ray AGNs are found at low Galactic latitudes. Most of the 4LAC AGNs are blazars (98%), while the remainder are other types of AGNs. The blazar population consists of 24% Flat Spectrum Radio Quasars (FSRQs), 38% BL Lac-type objects, and 38% blazar candidates of unknown types (BCUs). On average, FSRQs display softer spectra and stronger variability in the gamma-ray band than BLQLacs do, confirming previous findings. All AGNs detected by ground-based atmospheric Cerenkov telescopes are also found in the 4LAC., The Fermi LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States, the Commissariat `a l’Energie Atomique and the Centre National de la Recherche Scientifique / Institut National de Physique Nucl´eaire et de Physique des Particules in France, the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK) and Japan Aerospace Exploration Agency (JAXA) in Japan, and the K. A. Wallenberg Foundation, the Swedish Research Council and the Swedish National Space Board in Sweden. Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Etudes Spatiales in France. This work performed in part under DOE Contract DE- AC02-76SF00515. This research has made use of data obtained from the high-energy Astrophysics Science Archive Research Center (HEASARC) provided by NASA’s Goddard Space Flight Center; the SIMBAD database operated at CDS, Strasbourg, France; the NASA/IPAC Extragalactic Database (NED) operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This research has made use of data archives, catalogs and software tools from the ASDC, a facility managed by the Italian Space Agency (ASI). Part of this work is based on the NVSS (NRAO VLA Sky Survey). The National Radio Astronomy Observatory is operated by Associated Universities, Inc., under contract with the National Science Foundation. This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. This publication makes use of data products from the Wide-field Infrared Survey Explorer, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web Site is http://www.sdss.org/. The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington.
Published: 2020

11. Development of a SiPM based camera for Cherenkov Telescope Array

Author: E. Fiandrini, C. de Lisio, Riccardo Paoletti, M. Valentino, M. Ambrosio, Nicola Giglietto, G. Ambrosi, Maria Ionica, D. Simone, Elisabetta Bissaldi, A. Bonavolontà, V. Postolache, A. Boiano, V. Masone, L. Di Venere, Valerio Vagelli, Carla Aramo, Francesco Giordano, Ambrosi, G., Ambrosio, M., Aramo, C., Bissaldi, E., Boiano, A., Bonavolontà, A., de Lisio, C., Di Venere, L., Fiandrini, E., Giglietto, N., Giordano, F., Ionica, M., Masone, V., Paoletti, R., Postolache, V., Simone, D., Vagelli, V., and Valentino, M.
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Micro cell, Cherenkov Telescope Array, Light detection, 010308 nuclear & particles physics, business.industry, Detector, Gamma-ray astronomy, Silicon Photomultipliers, 01 natural sciences, law.invention, Telescope, Silicon Photomultipliers, Cherenkov Telescope Array, Silicon photomultiplier, Optics, law, 0103 physical sciences, business, 010303 astronomy & astrophysics, Cherenkov radiation
Abstract: The Italian Institute of Nuclear Physics (INFN) is involved in the development of a prototype for a SiPM-based camera for the Cherenkov Telescope Array (CTA), a new generation of telescopes for ground - based gamma ray astronomy. In this framework, an R&D program for the development of SiPMs suitable for Cherenkov light detection (Near-Ultraviolet SiPMs) has been carried out. The developed device is a High Density NUV-SiPM based on a micro cell of 30 μ m × 30 μ m and 6 mm × 6 mm area produced by Fondazione Bruno Kessler (FBK). A full characterisation of the single SiPM will be presented and compared with the old technology (NUV-SiPM) and with other SiPMs commercially available. The NUV-HD SiPM will be tested in the pSCT (Schwarzschild-Couder Telescope prototype) for CTA which is leading to a camera concept based on 8 × 8 NUV-HD SiPM module as detection unit. An update on recent tests on the detectors arranged in this matrix configuration and on the front-end electronics will be given.
Published: 2017

12. Readout chain validation of INFN modules for the CTA-pSCT camera

Author: Nicola Giglietto, A. Rugliancich, B. Bertucci, Riccardo Paoletti, E. Fiandrini, L. Consiglio, L. Di Venere, M. Ambrosio, V. Masone, M. Bitossi, S. Loporchio, M. Valentino, Carla Aramo, Francesco Giordano, L. Tosti, A. Boiano, G. Ambrosi, V. Vagelli, Carmela Bonavolontà, M. Caprai, Elisabetta Bissaldi, M. Movileanu, and F. Licciulli
Subjects: Physics, Nuclear and High Energy Physics, Pixel, 010308 nuclear & particles physics, business.industry, SiPM, Front-end electronics, Chip, Cherenkov Telescope Array, 01 natural sciences, law.invention, Telescope, Optics, Silicon photomultiplier, Cardinal point, law, Observatory, 0103 physical sciences, Cherenkov Telescopes, Photo detectors, 010306 general physics, business, Instrumentation, Cherenkov radiation
Abstract: The Italian Institute of Nuclear Physics (INFN) is currently involved in the R&D for the integration of Fondazione Bruno Kessler (FBK) Silicon Photomultipliers (SiPM) in the focal plane camera for the prototype of the Schwarzschild–Couder Telescope (pSCT) proposed to integrate the Cherenkov Telescope Array (CTA) observatory . High density FBK SiPMs optimized for the detection of Near Ultraviolet Cherenkov light (NUV-HD) will be used to equip the camera, coupled to the TARGET-7 readout electronics. A first production of 9 INFN modules is being tested and will be installed on the focal plane of the pSCT camera. Each module consists of 64 6 mm × 6 mm pixels, based on 40 μ m × 40 μ m microcells, arranged in 16-pixel matrices. The front-end electronics is based on the TARGET-7 ASIC, a 16-channel chip for sampling and digitization of the signal. Here we report measurements of the performances of the complete readout chain, including results regarding homogeneity in terms of gain and signal-to-noise ratio .
Published: 2019

13. Characterization of FBK NUV-HD SiPMs for the pSCT camera proposed for the Cherenkov Telescope Array

Author: L. Tosti, C. Bonavolontà, Maria Ionica, S. Loporchio, M. Ambrosio, A. Rugliancich, V. Masone, Carla Aramo, Francesco Giordano, A. Boiano, L. Consiglio, M. Caprai, V. Vagelli, G. Ambrosi, E. Fiandrini, Riccardo Paoletti, F. Licciulli, B. Bertucci, M. Bitossi, L. Di Venere, Elisabetta Bissaldi, Nicola Giglietto, and M. Valentino
Subjects: 010302 applied physics, Physics, Nuclear and High Energy Physics, High energy, 010308 nuclear & particles physics, business.industry, SiPM, High density, Cherenkov telescopes, Cherenkov Telescope Array, 01 natural sciences, law.invention, Telescope, FBK NUV-HD, Photo detectors, Optics, Silicon photomultiplier, Cardinal point, law, 0103 physical sciences, business, Instrumentation, Cherenkov radiation
Abstract: Recent developments on Silicon Photomultipliers (SiPMs) have shown that they are particularly adequate to detect fast signal due to low-intensity light. Fondazione Bruno Kessler (FBK) has optimized these sensors for the Near-Ultraviolet Cherenkov light emitted by high energy gamma-ray showers in the atmosphere. The FBK high density SiPMs (NUV-HD) have been extensively characterized in the laboratories of the Italian Institute of Nuclear Physics (INFN) in view of equipping the focal plane camera of the Schwarzschild–Couder Telescope prototype (pSCT) in the framework of the Cherenkov Telescope Array (CTA). Here we report the performances of the 6 × 6 mm 2 SiPMs based on 40 × 40 μm 2 cells, in terms of gain and signal-to-noise ratio. We compare the results obtained on devices from the latest generation and grown on different substrates in order to choose the most suitable sensor for the pSCT camera.
Published: 2019

14. Assembly and validation of SiPM optical modules for the SCT Medium Size Telescope proposed for the CTA observatory

Author: Maria Ionica, V. Masone, A. Rugliancich, L. Di Venere, L. Consiglio, M. Bitossi, A. Boiano, G. Ambrosi, V. Vagelli, Cta Sct, B. Bertucci, E. Fiandrini, F. R. Pantaleo, Riccardo Paoletti, S. Loporchio, M. Ambrosio, M. Valentino, Carla Aramo, F. Licciulli, Nicola Giglietto, Francesco Giordano, C. Bonavolontà, M. Caprai, L. Tosti, L. Stiaccini, and Elisabetta Bissaldi
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, business.industry, SiPM, Cherenkov Telescope Array, 01 natural sciences, Signal, Photo Detectors, law.invention, Telescope, Silicon photomultiplier, Optics, Upgrade, Cardinal point, Front End Electronics, Observatory, law, 0103 physical sciences, Cherenkov Telescopes, 010306 general physics, business, Cherenkov radiation
Abstract: Silicon Photomultipliers are particularly suitable as optical units of Imaging Air Cherenkov Telescopes to detect the fast and low-intensity Cherenkov signal emitted by high energy atmospheric showers. The third generation of high density NUV SiPMs (NUV-HD3) produced by Fondazione Bruno Kessler (FBK) in collaboration with INFN have been used to equip optical modules intended to be integrated on a possible upgrade of the focal plane camera of the Schwarzschild-Couder Telescope prototype (pSCT) in the framework of the Cherenkov Telescope Array (CTA) project. NUV-HD3 SiPMs are 6 × 6 mm2 devices based on 40 × 40 μm2 microcells with excellent photo detection efficiency for the NUV wavelengths. Optical modules, each composed of a matrix of 4 × 4 SiPMs, have been assembled and tested in the laboratories of INFN to be integrated on the pSCT camera. In this contribution we report on the development and on the assembly of the optical modules, on their validation and on their integration on the pSCT camera.
Published: 2019

15. Monte Carlo studies for the optimisation of the Cherenkov Telescope Array layout

Author: Katsuaki Asano, Rodrigo Guedes Lang, M. Cieślar, Nicholas F. H Tothill, Gianpiero Tagliaferri, O. Le Blanc, M. Vazquez Acosta, Nicola Giglietto, S. Mangano, Julien Lefaucheur, Tatsuo Yoshida, D. de Martino, Martin Pohl, A. Shalchi, Y. Renier, B. Biasuzzi, T. B. Humensky, E. Fiandrini, Andreas Quirrenbach, Abelardo Moralejo, Carla Aramo, Vincenzo Rizi, J. Knapp, A. Pagliaro, Andrea Santangelo, Michael Punch, Andreas Specovius, A. M. Lopez, P. Peñil Del Campo, Henry Przybilski, J.-P. Lenain, Agnieszka Slowikowska, Satoshi Fukami, M. H. Grondin, S. Schlenstedt, Marek Nikolajuk, F. Schüssler, Maria Concetta Maccarone, Michael Zacharias, Francesco Giordano, T. Suomijärvi, Lorenzo Amati, J. Becker Tjus, Maxim V. Barkov, H. Prokoph, F.G. Saturni, R. J. White, Nu. Komin, María Isabel Bernardos, M. Orienti, Denis Bastieri, Justin Vandenbroucke, P. Vallania, Diego Falceta-Gonçalves, L. Tibaldo, A. Burtovoi, A. Viana, Takanori Yoshikoshi, Roberto Aloisio, Soebur Razzaque, M. Valentino, P. Da Vela, Pol Bordas, Francesco Longo, N. Otte, V. La Parola, E. O. Angüner, Marco Berton, Elina Lindfors, Salvo Scuderi, Hiroyasu Tajima, M. Prouza, E. Mach, P. Goldoni, C. Alispach, M. I. Martínez, Miroslav Pech, Kai Brügge, G. Vasileiadis, A. Nagai, A. Brill, Dusan Mandat, Geoff Romeo, M. Marculewicz, Cameron B Rulten, Fuyuki Tokanai, Luis Ángel Tejedor, Thomas Lohse, Anderson Caproni, Karol Seweryn, G. Bonnoli, D. Ninci, G. Pareschi, Stefan Kimeswenger, I. Sadeh, Łukasz Stawarz, M. Nöthe, Daniel Mazin, Ruben Alfaro, G. Busetto, Massimo Persic, A. Berti, G. Sironi, Pavel Horvath, Włodek Kluźniak, Pietro Bruno, Petr Travnicek, Daniel Kerszberg, M. Hayashida, Tomasz Szepieniec, A. Rugliancich, Marina Manganaro, Y. Ohtani, Samuel Timothy Spencer, L. Di Venere, S. Karkar, M. Füßling, E. de Oña Wilhelmi, Louis Antonelli, M. Lemoine-Goumard, Benjamin Koch, P.-O. Petrucci, M. de Naurois, Felix Werner, S. Sakurai, J. J. Rodríguez Vázquez, Petr Janecek, L. Dangeon, G. Fontaine, Alison Mitchell, Maria Magdalena González, Francesco Dazzi, Philip Kaaret, Reinaldo Santos-Lima, F. Di Pierro, Tomislav Terzić, Grzegorz Kowal, Stefan Wagner, R. A. Cameron, G. S. Varner, M. Roncadelli, Wystan Benbow, C. Bonavolontà, David Kieda, M. A. Leigui de Oliveira, Ullrich Schwanke, Y. Iwamura, K. Sedlaczek, R. C. Shellard, Q. Feng, David A. Williams, A. De Angelis, T. Nagayoshi, P. Sangiorgi, I. A. Minaya, Etienne Lyard, Juan Abel Barrio, B. De Lotto, S. Nozaki, J. Gironnet, L. Mohrmann, Oscar Blanch, Marcello Giroletti, Jean-Luc Meunier, Valentina Fioretti, S. Masuda, V. Vagelli, Rodolfo Canestrari, L. Freixas Coromina, M. Palatka, T. Di Girolamo, Vincenzo Testa, Tsuguya Naito, J. Becerra González, R. Alves Batista, Samo Stanič, S. D. Vergani, Lorenzo Bellizzi, Catherine Boisson, Olivier Hervet, P. Cumani, Konstancja Satalecka, Stefan Funk, Michele Doro, Pedro L. Luque-Escamilla, P. Romano, E. Fedorova, Carlo Vigorito, M. Zavrtanik, Markus Gaug, Stanislav Stefanik, R. J. García López, F. de Palma, V. Beshley, T.R.N. Ekoume, Enrico Congiu, Pierre Brun, Manuela Mallamaci, Barbara Balmaverde, L. Valore, Gino Tosti, Enrico Cascone, Marek Jamrozy, V. I. Zhdanov, Gavin Rowell, Elisabetta Bissaldi, M. Fiori, M. Capalbi, J. Bregeon, Dario Hrupec, F. Toussenel, R. Paoletti, Fulvio Gianotti, Ayan Acharyya, G. Spengler, P. Majumdar, A.A. Zdziarski, A. López-Oramas, M. Mariotti, Juri Poutanen, G. Ferrand, Paweł Świerk, M. Garczarczyk, S. Rainò, Tsunefumi Mizuno, Diego F. Torres, Ciro Bigongiari, Matteo Cerruti, M. Polo, Csaba Balázs, A. Dmytriiev, T. Gasparetto, D. Dorner, A. W. Chen, Elisa Prandini, Vitalii Sliusar, Helene Sol, Rodolfo Carosi, Jonathan Biteau, Vito Conforti, G. Rodriguez Fernandez, Shanta M. Zimmer, J. M. Paredes, S. Vercellone, Jonathan Granot, Alice Donini, Antonio Stamerra, Jaime Rosado, Michael G. Burton, Bohdan Hnatyk, F. D'Ammando, D. Nosek, M. Heller, Gagik Tovmassian, N. Produit, Petr Schovanek, German Martinez, G. Pühlhofer, S. Fegan, A. Kong, G. Morlino, G. Emery, H.-S. Zechlin, Tomasz Bulik, Antonino D'Ai, Riccardo Rando, Rocco Lico, K. Pfrang, D. Hadasch, R. López-Coto, A. Vollhardt, Pankaj Kushwaha, Petar Temnikov, Emmanuel Moulin, Luca Zampieri, Michiko Ohishi, C. Maggio, V. de Souza, Q. Piel, Marc Ribó, Werner Hofmann, A. Wierzcholska, Luisa Arrabito, Gianpaolo Vettolani, J. Pérez-Romero, Paramita Barai, Sylvain Chaty, N. Parmiggiani, V. Vassiliev, K. Nishijima, D. Cauz, S. Caroff, Giuseppe Leto, J.F. Glicenstein, Maria Ionica, Eva Sciacca, A. Bonardi, Juan Carlos Rodríguez-Ramírez, Marcos Santander, H. Siejkowski, Daniela Maria Ribeiro, Ralph Bird, S. Mićanović, D. Zavrtanik, Carole Mundell, Jan Ebr, Koji Noda, Elisa Bernardini, R. Gnatyk, Pierre Jean, M. Nievas Rosillo, M. López, Olga Sergijenko, R. Walter, Oleh Petruk, M. Del Santo, D. Elsasser, Jakub Juryšek, H. Martínez-Huerta, Andreas Zech, Jose J. Gonzalez, Akira Okumura, M. Iori, A. Ghalumyan, Jacco Vink, David Gascon, Jürgen Knödlseder, Daniel Nieto, R. A. Ong, Sabrina Casanova, B. Khélifi, S. Flis, G. Galanti, H. J. Voelk, Jim Hinton, M. Will, David H. Green, Giuseppe Malaguti, B. Rudak, A. Pe'Er, J. L. Dournaux, Andrea Bulgarelli, Frank M. Rieger, A. Djannati-Ataï, F. De Frondat, Lenka Tomankova, Moritz Hütten, Osvaldo Catalano, Hidetoshi Kubo, Tarek M. Hassan, Tomohiro Inada, Farinaldo S. Queiroz, J. Kushida, Daniel Morcuende, Jose Luis Contreras, F. Salesa Greus, Juan Cortina, Andreu Sanuy, S. Vorobiov, G. Maneva, B. Vallage, N. Maxted, N. Renault-Tinacci, P. Munar, M. Seglar-Arroyo, Fabrizio Tavecchio, Z. Ou, Anatolii Zenin, T. Tam, Miroslav Hrabovsky, G. Ambrosi, Giovanni Bonanno, R. Millul, Anastasia Maria Barbano, T. Grabarczyk, J. Zorn, D. Dominis Prester, R. D. Parsons, Luis H. S. Kadowaki, Elena Amato, M. Lallena Arquillo, I. Oya, Jacek Niemiec, Gianluca Giavitto, Marita Krause, Olaf Reimer, Josep Martí, M. Perri, Maria Chernyakova, Takeshi Nakamori, E. M. de Gouveia Dal Pino, Thomas Murach, P. Cristofari, C. Delgado, Fernando Catalani, G. La Rosa, J. Alfaro, Thomas Armstrong, J. Kocot, Léa Jouvin, Markus Böttcher, Rodrigo Nemmen, J. P. Amans, Utane Sawangwit, Y. Kobayashi, Hidetoshi Sano, D. Jankowsky, Heide Costantini, F. Arqueros, B. Bertucci, Sebastian Diebold, L. P. Taylor, Konstantinos N. Gourgouliatos, A. Fiasson, Miroslav Filipovic, R. Moderski, T. Stolarczyk, B. Patricelli, H. Ashkar, Alessandro Costa, Jonathan Blazek, C. Trichard, M. Vecchi, T. Greenshaw, A. Morselli, V. Vitale, A. M. Brown, S. M. Colak, Lili Yang, C. Díaz, J. Rico, P. Caraveo, S. Loporchio, Orel Gueta, Daniele Gaggero, V. De Caprio, R. Wischnewski, A. Sillanpää, C. J. Todero Peixoto, Takashi Saito, I. Agudo, Yasuo Fukui, Roberto Capuzzo-Dolcetta, F. Cassol, Manuel Meyer, Reiko Orito, G. Umana, M. V. Fonseca, U. Barres de Almeida, Saverio Lombardi, D. della Volpe, Giancarlo Cusumano, M. Ostrowski, T. Montaruli, L. Tosti, Garret Cotter, Konrad Bernlöhr, Reshmi Mukherjee, Fabio Iocco, M. Palatiello, Jonathan S. Lapington, U. Straumann, R. de Cássia dos Anjos, Matteo Balbo, Lab Saha, N. Hiroshima, G. Chiaro, D. Tonev, Ermanno Pietropaolo, Atreyee Sinha, Ministerio de Ciencia e Innovación (España), European Commission, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut 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 Univers et Théories (LUTH (UMR_8102)), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), 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 d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Research unit Astroparticle Physics, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Aix Marseille Université (AMU), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA), Acharyya, A., Agudo, I., Anguner, E. O., Alfaro, R., Alfaro, J., Alispach, C., Aloisio, R., Alves Batista, R., Amans, J. -P., Amati, L., Amato, E., Ambrosi, G., Antonelli, L. A., Aramo, C., Armstrong, T., Arqueros, F., Arrabito, L., Asano, K., Ashkar, H., Balazs, C., Balbo, M., Balmaverde, B., Barai, P., Barbano, A., Barkov, M., Barres de Almeida, U., Barrio, J. A., Bastieri, D., Becerra Gonzalez, J., Becker Tjus, J., Bellizzi, L., Benbow, W., Bernardini, E., Bernardos, M. I., Bernlohr, K., Berti, A., Berton, M., Bertucci, B., Beshley, V., Biasuzzi, B., Bigongiari, C., Bird, R., Bissaldi, E., Biteau, J., Blanch, O., Blazek, J., Boisson, C., Bonanno, G., Bonardi, A., Bonavolonta, C., Bonnoli, G., Bordas, P., Bottcher, M., Bregeon, J., Brill, A., Brown, A. M., Brugge, K., Brun, P., Bruno, P., Bulgarelli, A., Bulik, T., Burton, M., Burtovoi, A., Busetto, G., Cameron, R., Canestrari, R., Capalbi, M., Caproni, A., Capuzzo-Dolcetta, R., Caraveo, P., Caroff, S., Carosi, R., Casanova, S., Cascone, E., Cassol, F., Catalani, F., Catalano, O., Cauz, D., Cerruti, M., Chaty, S., Chen, A., Chernyakova, M., Chiaro, G., Cieslar, M., Colak, S. M., Conforti, V., Congiu, E., Contreras, J. L., Cortina, J., Costa, A., Costantini, H., Cotter, G., Cristofari, P., Cumani, P., Cusumano, G., D'Ai, A., D'Ammando, F., Dangeon, L., Da Vela, P., Dazzi, F., De Angelis, A., De Caprio, V., de Cassia dos Anjos, R., De Frondat, F., de Gouveia Dal Pino, E. M., De Lotto, B., De Martino, D., de Naurois, M., de Ona Wilhelmi, E., de Palma, F., de Souza, V., Del Santo, M., Delgado, C., della Volpe, D., Di Girolamo, T., Di Pierro, F., Di Venere, L., Diaz, C., Diebold, S., Djannati-Atai, A., Dmytriiev, A., Dominis Prester, D., Donini, A., Dorner, D., Doro, M., Dournaux, J. -L., Ebr, J., Ekoume, T. R. N., Elsasser, D., Emery, G., Falceta-Goncalves, D., Fedorova, E., Fegan, S., Feng, Q., Ferrand, G., Fiandrini, E., Fiasson, A., Filipovic, M., Fioretti, V., Fiori, M., Flis, S., Fonseca, M. V., Fontaine, G., Freixas Coromina, L., Fukami, S., Fukui, Y., Funk, S., Fussling, M., Gaggero, D., Galanti, G., Garcia Lopez, R. J., Garczarczyk, M., Gascon, D., Gasparetto, T., Gaug, M., Ghalumyan, A., Gianotti, F., Giavitto, G., Giglietto, N., Giordano, F., Giroletti, M., Gironnet, J., Glicenstein, J. -F., Gnatyk, R., Goldoni, P., Gonzalez, J. M., Gonzalez, M. M., Gourgouliatos, K. N., Grabarczyk, T., Granot, J., Green, D., Greenshaw, T., Grondin, M. -H., Gueta, O., Hadasch, D., Hassan, T., Hayashida, M., Heller, M., Hervet, O., Hinton, J., Hiroshima, N., Hnatyk, B., Hofmann, W., Horvath, P., Hrabovsky, M., Hrupec, D., Humensky, T. B., Hutten, M., Inada, T., Iocco, F., Ionica, M., Iori, M., Iwamura, Y., Jamrozy, M., Janecek, P., Jankowsky, D., Jean, P., Jouvin, L., Jurysek, J., Kaaret, P., Kadowaki, L. H. S., Karkar, S., Kerszberg, D., Khelifi, B., Kieda, D., Kimeswenger, S., Kluzniak, W., Knapp, J., Knodlseder, J., Kobayashi, Y., Koch, B., Kocot, J., Komin, N., Kong, A., Kowal, G., Krause, M., Kubo, H., Kushida, J., Kushwaha, P., La Parola, V., La Rosa, G., Lallena Arquillo, M., Lang, R. G., Lapington, J., Le Blanc, O., Lefaucheur, J., Leigui de Oliveira, M. A., Lemoine-Goumard, M., Lenain, J. -P., Leto, G., Lico, R., Lindfors, E., Lohse, T., Lombardi, S., Longo, F., Lopez, A., Lopez, M., Lopez-Oramas, A., Lopez-Coto, R., Loporchio, S., Luque-Escamilla, P. L., Lyard, E., Maccarone, M. C., Mach, E., Maggio, C., Majumdar, P., Malaguti, G., Mallamaci, M., Mandat, D., Maneva, G., Manganaro, M., Mangano, S., Marculewicz, M., Mariotti, M., Marti, J., Martinez, M., Martinez, G., Martinez-Huerta, H., Masuda, S., Maxted, N., Mazin, D., Meunier, J. -L., Meyer, M., Micanovic, S., Millul, R., Minaya, I. A., Mitchell, A., Mizuno, T., Moderski, R., Mohrmann, L., Montaruli, T., Moralejo, A., Morcuende, D., Morlino, G., Morselli, A., Moulin, E., Mukherjee, R., Munar, P., Mundell, C., Murach, T., Nagai, A., Nagayoshi, T., Naito, T., Nakamori, T., Nemmen, R., Niemiec, J., Nieto, D., Nievas Rosillo, M., Nikolajuk, M., Ninci, D., Nishijima, K., Noda, K., Nosek, D., Nothe, M., Nozaki, S., Ohishi, M., Ohtani, Y., Okumura, A., Ong, R. A., Orienti, M., Orito, R., Ostrowski, M., Otte, N., Ou, Z., Oya, I., Pagliaro, A., Palatiello, M., Palatka, M., Paoletti, R., Paredes, J. M., Pareschi, G., Parmiggiani, N., Parsons, R. D., Patricelli, B., Pe'Er, A., Pech, M., Penil Del Campo, P., Perez-Romero, J., Perri, M., Persic, M., Petrucci, P. -O., Petruk, O., Pfrang, K., Piel, Q., Pietropaolo, E., Pohl, M., Polo, M., Poutanen, J., Prandini, E., Produit, N., Prokoph, H., Prouza, M., Przybilski, H., Puhlhofer, G., Punch, M., Queiroz, F., Quirrenbach, A., Raino, S., Rando, R., Razzaque, S., Reimer, O., Renault-Tinacci, N., Renier, Y., Ribeiro, D., Ribo, M., Rico, J., Rieger, F., Rizi, V., Rodriguez Fernandez, G., Rodriguez-Ramirez, J. C., Rodri-guez Vazquez, J. J., Romano, P., Romeo, G., Roncadelli, M., Rosado, J., Rowell, G., Rudak, B., Rugliancich, A., Rulten, C., Sadeh, I., Saha, L., Saito, T., Sakurai, S., Salesa Greus, F., Sangiorgi, P., Sano, H., Santander, M., Santangelo, A., Santos-Lima, R., Sanuy, A., Satalecka, K., Saturni, F. G., Sawangwit, U., Schlenstedt, S., Schovanek, P., Schussler, F., Schwanke, U., Sciacca, E., Scuderi, S., Sedlaczek, K., Seglar-Arroyo, M., Sergijenko, O., Seweryn, K., Shalchi, A., Shellard, R. C., Siejkowski, H., Sillanpaa, A., Sinha, A., Sironi, G., Sliusar, V., Slowikowska, A., Sol, H., Specovius, A., Spencer, S., Spengler, G., Stamerra, A., Stanic, S., Stawarz, L., Stefanik, S., Stolarczyk, T., Straumann, U., Suomijarvi, T., Swierk, P., Szepieniec, T., Tagliaferri, G., Tajima, H., Tam, T., Tavecchio, F., Taylor, L., Tejedor, L. A., Temnikov, P., Terzic, T., Testa, V., Tibaldo, L., Todero Peixoto, C. J., Tokanai, F., Tomankova, L., Tonev, D., Torres, D. F., Tosti, G., Tosti, L., Tothill, N., Toussenel, F., Tovmassian, G., Travnicek, P., Trichard, C., Umana, G., Vagelli, V., Valentino, M., Vallage, B., Vallania, P., Valore, L., Vandenbroucke, J., Varner, G. S., Vasileiadis, G., Vassiliev, V., Vazquez Acosta, M., Vecchi, M., Vercellone, S., Vergani, S., Vettolani, G. P., Viana, A., Vigorito, C. F., Vink, J., Vitale, V., Voelk, H., Vollhardt, A., Vorobiov, S., Wagner, S. J., Walter, R., Werner, F., White, R., Wierzcholska, A., Will, M., Williams, D. A., Wischnewski, R., Yang, L., Yoshida, T., Yoshikoshi, T., Zacharias, M., Zampieri, L., Zavrtanik, M., Zavrtanik, D., Zdziarski, A. A., Zech, A., Zechlin, H., Zenin, A., Zhdanov, V. I., Zimmer, S., Zorn, J., Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Durham University, Glorieta de la Astronomía s/n, Delegación Coyoacán, Pontificia Universidad Católica de Chile, Département de physique nucléaire et corpusculaire, Università degli Studi dell'Aquila and Gran Sasso Science Institute, Universidade de São Paulo (USP), PSL Research University, INAF - Osservatorio di astrofisica e scienza dello spazio di Bologna, INAF - Osservatorio Astrofisico di Arcetri, INFN Sezione di Perugia, Universitá degli Studi di Perugia, INAF - Osservatorio Astronomico di Roma, INFN Sezione di Napoli, University of Oxford, Universidad Complutense de Madrid, CNRS/IN2P3, University of Tokyo, Monash University, University of Geneva, INAF - Osservatorio Astronomico di Brera, Institute of Physical and Chemical Research, Centro Brasileiro de Pesquisas Físicas, INFN Sezione di Padova and Universitá degli Studi di Padova, Universidad de La Laguna, Ruhr-Universität Bochum, Harvard-Smithsonian Center for Astrophysics, Max-Planck-Institut für Kernphysik, INFN Sezione di Torino, Pidstryhach Institute for Applied Problems in Mechanics and Mathematics NASU, Université Paris-Saclay, University of California, INFN Sezione di Bari and Politecnico di Bari, The Barcelona Institute of Science and Technology, Institute of Physics of the Czech Academy of Sciences, INAF - Osservatorio Astrofisico di Catania, Radboud University Nijmegen, Dipartimento di Scienze Fisiche, IEEC-UB, North-West University, Columbia University, TU Dortmund University, University of Warsaw, Armagh Observatory and Planetarium, Stanford University, INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Palermo, Núcleo de Astrofísica Teórica (NAT/UCS), INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano, INFN Sezione di Pisa, Polish Academy of Sciences, INAF - Osservatorio Astronomico di Capodimonte, INFN Sezione di Trieste and Università degli Studi di Udine, University of the Witwatersrand, Dublin City University, CIEMAT, CPPM, INAF - Istituto di Radioastronomia, Cherenkov Telescope Array Observatory, Universidade Federal do Paraná (UFPR), Université Paris-Saclay), CSIC), Institut d'Estudis Espacials de Catalunya (IEEC), Institució Catalana de Recerca i Estudis Avançats (ICREA) Barcelona, INFN Sezione di Bari and Università degli Studi di Bari, Universität Tübingen, Obs de Paris, University of Rijeka, Universität Würzburg, LPNHE, Astronomical Observatory of Taras Shevchenko National University of Kyiv, Western Sydney University, INAF - Osservatorio Astronomico di Padova, Deutsches Elektronen-Synchrotron, Nagoya University, University of Amsterdam, Universidad Autónoma de Madrid, INFN Sezione di Trieste and Università degli Studi di Trieste, Universitat Autónoma de Barcelona, Yerevan Physics Institute, Universidad Andrés Bello UNAB, Academic Computer Centre CYFRONET AGH, The Open University of Israel, Max-Planck-Institut für Physik, Oliver Lodge Laboratory, UMR 5797, Konan University, KEK (High Energy Accelerator Research Organization), RCPTM, Josip Juraj Strossmayer University of Osijek, Universidade Estadual Paulista (Unesp), INFN Sezione di Roma, Jagiellonian University, Physikalisches Institut, Université Paul Sabatier, University of Iowa, Leopold-Franzens-Universität, Kyoto University, Tokai University, University of Leicester, Universidade Federal do ABC (UFABC), University of Turku, Humboldt University Berlin, Universidad de Jaén, Saha Institute of Nuclear Physics, Bulgarian Academy of Sciences, Faculty of Physics, University of New South Wales, Universität Zürich, Hiroshima University, INFN Sezione di Roma Tor Vergata, INAF - Istituto di Astrofisica e Planetologia Spaziali (IAPS), University of Bath, Saitama University, Yamanashi-Gakuin University, Yamagata University, Institute of Particle & Nuclear Physics, Tokushima University, Georgia Institute of Technology, Institut de Planétologie et d'Astrophysique de Grenoble, Univ. Savoie Mont Blanc, Universität Potsdam, Linnaeus University, Universität Heidelberg, University of Johannesburg, University of Adelaide, Tuscaloosa, National Astronomical Research Institute of Thailand, Dept of Physics and Astronomy, Nicolaus Copernicus University, University of Nova Gorica, University of Wisconsin, INAF - Osservatorio Astrofisico di Torino, University of Hawai'i at Manoa, Ibaraki University, KVI - Center for Advanced Radiation Technology, University of Utah, USA, GBR, FRA, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Angüner, E. O., Becerra González, J., Bernlöhr, K., Bonavolontá, C., Böttcher, M., Brügge, K., Cieślar, M., D’Aí, A., D’Ammando, F., de Cássia dos Anjos, R., de Oña Wilhelmi, E., Díaz, C., Djannati-Ataï, A., Elsässer, D., Füßling, M., Garcia López, R. J., González, J. M., González, M. M., Hütten, M., Khélifi, B., Kluźniak, W., Knödlseder, J., López, M., López-Coto, R., Martí, J., Martínez, M., Martínez, G., Martínez-Huerta, H., Nikołajuk, M., Nöthe, M., Pe’Er, A., Peñil Del Campo, P., Pérez-Romero, J., Pühlhofer, G., Rainò, S., Ribó, M., Rodrí-guez Vázquez, J. J., Sillanpää, A., Stanič, S., Stawarz, Ł., Świerk, P., Vázquez Acosta, M., GRAPPA (ITFA, IoP, FNWI), and High Energy Astrophys. & Astropart. Phys (API, FNWI)
Subjects: Cherenkov Telescope Array, Astronomy, Monte Carlo method, energy resolution, Monte Carlo simulations, Cherenkov telescopes, IACT technique, gamma rays, cosmic rays, 01 natural sciences, 7. Clean energy, law.invention, Observatory, law, site, Monte Carlo, 010303 astronomy & astrophysics, Physics, Astrophysics::Instrumentation and Methods for Astrophysics, observatory, Cosmic rays, Gamma rays, Astronomy and Astrophysics, ddc:540, Física nuclear, Monte carlo studies, Astrophysics::Earth and Planetary Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, performance, FÍSICA DE ALTA ENERGIA, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, FOS: Physical sciences, energy dependence, Telescope, Optics, CTA - Abteilung Hofmann, 0103 physical sciences, Cherenkov counter: imaging, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Instrumentation and Methods for Astrophysics (astro-ph.IM), Monte Carlo simulation, Cherenkov radiation, CTA, 010308 nuclear & particles physics, business.industry, sensitivity, Cosmic ray, Cherenkov telescope, gamma ray: VHE, business, Energy (signal processing), astro-ph.IM
Abstract: The Cherenkov Telescope Array (CTA) is the major next-generation observatory for ground-based very-high-energy gamma-ray astronomy. It will improve the sensitivity of current ground-based instruments by a factor of five to twenty, depending on the energy, greatly improving both their angular and energy resolutions over four decades in energy (from 20 GeV to 300 TeV). This achievement will be possible by using tens of imaging Cherenkov telescopes of three successive sizes. They will be arranged into two arrays, one per hemisphere, located on the La Palma island (Spain) and in Paranal (Chile). We present here the optimised and final telescope arrays for both CTA sites, as well as their foreseen performance, resulting from the analysis of three different large-scale Monte Carlo productions.© 2019, We gratefully acknowledge financial support from the following agencies and organizations: State Committee of Science of Armenia, Armenia; The Australian Research Council, Astronomy Australia Ltd, The University of Adelaide, Australian National University, Monash University, The University of New South Wales, The University of Sydney, Western Sydney University, Australia; Federal Ministry of Science, Research and Economy, and Innsbruck University, Austria; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Fundacao de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), Ministry of Science, Technology, Innovations and Communications (MCTIC), Brasil; Ministry of Education and Science, National RI Roadmap Project D01-153/28.08.2018, Bulgaria; The Natural Sciences and Engineering Research Council of Canada and the Canadian Space Agency, Canada; CONICYT-Chile grants PFB-06, FB0821, ACT 1406, FONDECYT-Chile grants 3160153, 3150314, 1150411, 1161463, 1170171, Pontificia Universidad Catolica de Chile Vice-Rectory of Research internationalization grant under MINEDUC agreement PUC1566, Chile, Croatian Science Foundation, Rudjer Boskovic Institute, University of Osijek, University of Rijeka, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Zagreb, Faculty of Electrical Engineering and Computing, Croatia; Ministry of Education, Youth and Sports, MEYS LM2015046, LTT17006 and EU/MEYS CZ.02.1.01/0.0/0.0/16_013/0001403, CZ.02.1.01/0.0/0.0/17_049/0008422, Czech Republic; Ministry of Higher Education and Research, CNRS-INSU and CNRS-IN2P3, CEA-Irfu, ANR, Regional Council Ile-de France, Labex ENIGMASS, OSUG2020, P210 and OCEVU, France; Max Planck Society, BMBF, DESY, Helmholtz Association, Germany; Department of Atomic Energy, Department of Science and Technology, India; Istituto Nazionale di Astrofisica (INAF), Istituto Nazionale di Fisica Nucleare (INFN), MIUR, Istituto Nazionale di Astrofisica (INAF-OABRERA) Grant Fondazione Cariplo/Regione Lombardia ID 2014-1980/RST_ERC, Italy; ICRR, University of Tokyo, JSPS, MEXT, Japan; Netherlands Research School for Astronomy (NOVA), Netherlands Organization for Scientific Research (NWO), Netherlands; University of Oslo, Norway; Ministry of Science and Higher Education, DIR/WK/2017/12, the National Centre for Research and Development and the National Science Centre, UMO-2016/22/M/ST9/00583, Poland; Slovenian Research Agency, Slovenia, grants P1-0031, P1-0385, 10-0033, J1-9146; South African Department of Science and Technology and National Research Foundation through the South African Gamma-Ray Astronomy Programme, South Africa; MINECO National R+D+I, Severo Ochoa, Maria de Maeztu, CDTI, PAIDI, UJA, FPA2017-90566-REDC, Spain; Swedish Research Council, Royal Physiographic Society of Lund, Royal Swedish Academy of Sciences, The Swedish National Infrastructure for Computing (SNIC) at Lunarc (Lund), Sweden; Swiss National Science Foundation (SNSF), Ernest Boninchi Foundation, Switzerland; Durham University, Leverhulme Trust, Liverpool University, University of Leicester, University of Oxford, Royal Society, Science and Technology Facilities Council, UK; U.S. National Science Foundation, U.S.Department of Energy, Argonne National Laboratory, Barnard College, University of California, University of Chicago, Columbia University, Georgia Institute of Technology, Institute for Nuclear and Particle Astrophysics (INPAC-MRPI program), Iowa State University, the Smithsonian Institution, Washington University McDonnell Center for the Space Sciences, The University of Wisconsin and the Wisconsin Alumni Research Foundation, USA. The research leading to these results has received funding from the European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreements no 262053 and no 317446. This project is receiving funding from the European Union's Horizon 2020 research and innovation programs under agreement no 676134.
Published: 2019

16. A Search for Cosmic-ray Proton Anisotropy with the Fermi Large Area Telescope

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

17. Status of the development of NUV SiPMs for INFN optical modules for the SCT medium sized telescope proposed for the CTA observatory

Author: Nicola Giglietto, D. Riberio, M. Ambrosio, L. Stiaccini, K. Powell, Marcos Santander, J. Rouselle, V. Masone, Maria Ionica, B. Stevenson, Thomas Meures, W. Jin, B. Kim, Corbin Covault, L. Di Venere, L. Tosti, Olivier Hervet, M. Valentino, F. R. Pantaleo, M. Bitossi, Wystan Benbow, J. H. Buckley, C. Bonavolontà, S. Loporchio, Elisabetta Bissaldi, C. Adams, P. Kaaret, A. Petrashyk, G. Hughes, A. Brill, David A. Williams, R. Halliday, Akira Okumura, Riccardo Paoletti, B. Bertucci, Alasdair E. Gent, David Kieda, Vladimir Vassiliev, Carla Aramo, G. Ambrosi, R. Mukherjeek, L. P. Taylor, E. Fiandrini, Francesco Giordano, R. Shang, M. Caprai, Q. Feng, Richard Bose, A. Boiano, T. B. Humensky, V. Vagelli, B. A. W. Mode, Andrea Rugliancich, P. Wilcox, F. Licciulli, Cta pSCT, Justin Vandenbroucke, N. Otte, and J. Powell
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, business.industry, SiPM, Photodetector, Cherenkov telescopes, Cherenkov Telescope Array, 01 natural sciences, Photo detectors, law.invention, Telescope, Optics, Cardinal point, Silicon photomultiplier, Application-specific integrated circuit, law, Observatory, 0103 physical sciences, Electronics, business, 010303 astronomy & astrophysics, Instrumentation
Abstract: Near UltraViolet High Density (NUV-HD) SiPMs produced by Fondazione Bruno Kessler in collaboration with INFN have been tested and characterized in INFN laboratories. The third generation of these devices (HD3) has proven to be suitable to equip the focal plane of the prototype Schwarzschild–Couder Medium Size Telescope (pSCT) proposed for the Cherenkov Telescope Array Observatory. Photosensors have been assembled in 4 16-pixel optical units coupled with TARGET–7 ASIC front-end electronics for amplification and digitization of the signal. At present, 9 modules have been successfully integrated on the pSCT camera and are currently taking data. In this contribution we report on the performances of the HD3 technology as single sensor and as assembled optical units, showing their performance and homogeneity in terms of gain and dark count rate.
Published: 2020

18. Fermi GBM Observations of GRB 150101B: A Second Nearby Event with a Short Hard Spike and a Soft Tail

Author: Péter Veres, Oliver J. Roberts, Michael S. Briggs, Nelson Christensen, J. McEnery, William S. Paciesas, Elisabetta Bissaldi, Bagrat Mailyan, T. Dal Canton, Melissa Gibby, M. Stanbro, W. H. Cleveland, Rachel Hamburg, C. M. Hui, Dale D. Kocevski, A. von Kienlin, Eric Burns, Judith Racusin, Colleen A. Wilson-Hodge, K. Siellez, Valerie Connaughton, Adam Goldstein, Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux (ARTEMIS), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Universities Space Research Association (USRA), Department of Physics and Astronomy [Northfield], Carleton College, GSFC Laboratory for High Energy Astrophysics (LHEA), NASA Goddard Space Flight Center (GSFC), Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), and University of Alabama in Huntsville (UAH)
Subjects: [PHYS.ASTR.HE]Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE], Astrophysics::High Energy Astrophysical Phenomena, Population, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 0103 physical sciences, education, 010303 astronomy & astrophysics, ComputingMilieux_MISCELLANEOUS, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), education.field_of_study, gamma-ray burst: individual (GRB 150101B), 010308 nuclear & particles physics, Gravitational wave, Gamma-ray burst: general, Astronomy and Astrophysics, Neutron star, Space and Planetary Science, Spike (software development), Astrophysics - High Energy Astrophysical Phenomena, Gamma-ray burst, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Event (particle physics), hormones, hormone substitutes, and hormone antagonists, Fermi Gamma-ray Space Telescope
Abstract: In light of the joint multimessenger detection of a binary neutron star merger as the gamma-ray burst GRB 170817A and in gravitational waves as GW170817, we reanalyze the Fermi Gamma-ray Burst Monitor data of one of the closest short gamma-ray bursts: GRB 150101B. We find this burst is composed of a short hard spike followed by a comparatively long soft tail. This apparent two-component nature is phenomenologically similar to that of GRB 170817A. While GRB 170817A was distinct from the previously known population of short gamma-ray bursts in terms of its prompt intrinsic energetics, GRB 150101B is not. Despite these differences, GRB 150101B can be modeled as a more on-axis version of GRB 170817A. Identifying a similar signature in two of the closest short gamma-ray bursts suggests the soft tail is common, but generally undetectable in more distant events. If so, it will be possible to identify nearby short gamma-ray bursts from the prompt gamma-ray emission alone, aiding the search for kilonovae., Comment: Accepted for publication in ApJL
Published: 2018

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

Author: R. Buehler, J. Li, Marcello Giroletti, G. Tosti, I. A. Grenier, Regina Caputo, Soebur Razzaque, M. N. Mazziotta, E. Cavazzuti, Anna Franckowiak, Justin D. Finke, David H. Green, S. Rainò, Tsunefumi Mizuno, Hiroyasu Tajima, Yasushi Fukazawa, P. Fusco, Gloria Spandre, T. J. Brandt, E. Hays, Diego F. Torres, Marco Ajello, J. B. Thayer, M. Vogel, C. C. Cheung, G. Jóhannesson, J. Valverde, P. Lubrano, Jonathan Biteau, T. Reposeur, J. D. Magill, Manuel Meyer, Nicola Omodei, Johann Cohen-Tanugi, L. Di Venere, Melissa Pesce-Rollins, N. Di Lalla, M. Lemoine-Goumard, Luca Baldini, Bindu Rani, M. Palatiello, Stefano Ciprini, Luca Latronico, Sylvain Guiriec, T. A. Porter, F. Piron, R. Bonino, D. Costantin, Abhishek Desai, A. Reimer, Elliott D. Bloom, Vaidehi S. Paliya, L. Guillemot, S. Cutini, F. Loparco, J. F. Ormes, E. Orlando, Igor V. Moskalenko, Eric Charles, Ronaldo Bellazzini, D. J. Suson, K. S. Wood, Olaf Reimer, D. Horan, M. E. Monzani, Dario Gasparrini, J. S. Perkins, Roger Blandford, Eugenio Bottacini, Gabrijela Zaharijas, Alberto Manfreda, Massimo Persic, J. Ballet, C. Favuzzi, Nicola Giglietto, Francesco Longo, Elisabetta Bissaldi, Filippo D'Ammando, S. Kensei, Matteo Negro, A. Morselli, E. J. Siskind, J. Bregeon, J. W. Hewitt, Guido Barbiellini, Denis Bastieri, Julie McEnery, M. Orienti, Markus Ackermann, M. N. Lovellette, P. A. Caraveo, S. Maldera, L. Tibaldo, F. Gargano, Stefan Larsson, M. Di Mauro, P. Spinelli, Francesco Giordano, R. A. Cameron, P. Bruel, Tonia M. Venters, Matthew Wood, Daniel Castro, F. de Palma, G. Chiaro, Carmelo Sgrò, Riccardo Rando, E. Nuss, David Paneque, M. Kuss, Stefan Funk, Giacomo Principe, Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Ackermann, M., Ajello, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caraveo, P. A., Castro, D., Cavazzuti, E., Charles, E., Cheung, C. C., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Costantin, D., Cutini, S., D'Ammando, F., De Palma, F., Desai, A., Di Lalla, N., Di Mauro, M., Di Venere, L., Favuzzi, C., Finke, J., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Hays, E., Hewitt, J. W., Horan, D., Jóhannesson, G., Kensei, S., Kuss, M., Larsson, S., Latronico, L., Lemoine-Goumard, M., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mazziotta, M. N., Mcenery, J. E., Meyer, M., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Palatiello, M., Paliya, V. S., Paneque, D., Perkins, J. S., Persic, M., Pesce-Rollins, M., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Rani, B., Razzaque, S., Reimer, A., Reimer, O., Reposeur, T., Sgrò, C., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Thayer, J. B., Tibaldo, L., Torres, D. F., Tosti, G., Valverde, J., Venters, T. M., Vogel, M., Wood, K., Wood, M., Zaharijas, G., Biteau, J., Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and ITA
Subjects: catalog, Active galactic nucleus, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, BL Lacertae objects: general, catalogs, gamma rays: general, ISM: H II Regions, ISM: supernova remnants, 01 natural sciences, law.invention, Telescope, law, 0103 physical sciences, Astronomy and Astrophysics, Space and Planetary Science, H II Region [ISM], 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Background radiation, Physics, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, general [BL Lacertae objects], Astronomy and Astrophysic, Supernova, Crab Nebula, [SDU]Sciences of the Universe [physics], ISM: H ii Regions, ddc:520, Intergalactic travel, supernova remnant [ISM], Halo, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: The astrophysical journal / Supplement series 237(2), 32 (2018). doi:10.3847/1538-4365/aacdf7, We present a search for spatial extension in high-latitude ($| b| \gt 5^\circ $) sources in recent Fermi point source catalogs. The result is the Fermi High-Latitude Extended Sources Catalog, which provides source extensions (or upper limits thereof) and likelihood profiles for a suite of tested source morphologies. We find 24 extended sources, 19 of which were not previously characterized as extended. These include sources that are potentially associated with supernova remnants and star-forming regions. We also found extended $γ$-ray emission in the vicinity of the Cen A radio lobes and—at GeV energies for the first time—spatially coincident with the radio emission of the SNR CTA 1, as well as from the Crab Nebula. We also searched for halos around active galactic nuclei, which are predicted from electromagnetic cascades induced by the $e^+ e^−$ pairs that are deflected in intergalactic magnetic fields. These pairs are produced when γ-rays interact with background radiation fields. We do not find evidence for extension in individual sources or in stacked source samples. This enables us to place limits on the flux of the extended source components, which are then used to constrain the intergalactic magnetic field to be stronger than $3 × 10^{−16} G$ for a coherence length $λ \gtrsim$ 10 kpc, even when conservative assumptions on the source duty cycle are made. This improves previous limits by several orders of magnitude., Published by IOP, Chicago, Ill. [u.a.]
Published: 2018

20. Investigating the Nature of Late-Time High-Energy GRB Emission Through Joint Fermi\Swift Observations

Author: Daniel Kocevski, Giacomo Principe, Elisabetta Bissaldi, Vaidehi S. Paliya, P. Spinelli, M. E. Monzani, Melissa Pesce-Rollins, Francesco Giordano, G. Tosti, M. Vogel, Matteo Negro, A. Morselli, F. Piron, N. Di Lalla, Luca Baldini, Sylvain Guiriec, Diego F. Torres, D. Costantin, C. Holt, Olaf Reimer, Carmelo Sgrò, Riccardo Rando, Nicola Omodei, G. La Mura, P. Fusco, Stefan Larsson, Aaron Dominguez, G. Jóhannesson, Guido Barbiellini, I. A. Grenier, R. A. Cameron, P. Lubrano, Stefano Ciprini, M. Kuss, David H. Green, P. Bruel, Denis Bastieri, E. J. Siskind, M. Razzano, Soebur Razzaque, Marco Ajello, Gloria Spandre, C. Favuzzi, Dario Gasparrini, Ronaldo Bellazzini, J. B. Thayer, M. N. Mazziotta, Filippo D'Ammando, Stefan Funk, J. Valverde, Regina Caputo, J. D. Magill, Massimo Persic, Francesco Longo, J. S. Perkins, M. Orienti, F. Loparco, Eric Nuss, K. S. Wood, D. Tak, R. Buehler, Nicola Giglietto, Johan Bregeon, S. Maldera, D. Horan, J. L. Racusin, Anna Franckowiak, R. Bonino, A. Reimer, S. Rainò, J. Li, Peter F. Michelson, Marcello Giroletti, Eugenio Bottacini, Tsunefumi Mizuno, P. A. Caraveo, Alberto Manfreda, Johann Cohen-Tanugi, F. Gargano, Roger Blandford, F. de Palma, M. Di Mauro, G. Chiaro, L. Di Venere, Yasushi Fukazawa, E. Orlando, Laboratoire Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Raunvísindastofnun (HÍ), Science Institute (UI), Verkfræði- og náttúruvísindasvið (HÍ), School of Engineering and Natural Sciences (UI), Háskóli Íslands (HÍ), University of Iceland (UI), ITA, Ajello, M., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caraveo, P. A., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Costantin, D., D'Ammando, F., De Palma, F., Di Lalla, N., Di Mauro, M., Di Venere, L., Dominguez, A., Favuzzi, C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guiriec, S., Holt, C., Horan, D., Jóhannesson, G., Kocevski, D., Kuss, M., Mura, G. La, Larsson, S., Li, J., Longo, F., Loparco, F., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mazziotta, M. N., Michelson, P. F., Mizuno, T., Monzani, M. E., Morselli, A., Negro, M., Nuss, E., Omodei, N., Orienti, M., Orlando, E., Paliya, V. S., Perkins, J. S., Persic, M., Pesce-Rollins, M., Piron, F., Principe, G., Racusin, J. L., Raino, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Sgro, C., Siskind, E. J., Spandre, G., Spinelli, P., Tak, D., Thayer, J. B., Torres, D. F., Tosti, G., Valverde, J., Vogel, M., Wood, K., Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Sjónaukar, long-lived, Gammageislar, Astrophysics::High Energy Astrophysical Phenomena, Population, gamma-ray burst: general, electron: relativistic, FOS: Physical sciences, magnetic field, Gamma-ray burst: general, Astronomy and Astrophysics, Space and Planetary Science, Astrophysics, general [gamma-ray burst], gamma ray: burst, 7. Clean energy, 01 natural sciences, GLAST, law.invention, Telescope, law, 0103 physical sciences, synchrotron, ddc:530, X-ray: emission, energy: density, education, Gamma-ray burst, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), education.field_of_study, energy: high, 010308 nuclear & particles physics, Gamma ray, Compton scattering, Astronomy and Astrophysic, Synchrotron, Afterglow, electron: spectrum, flux, electron synchrotron, spectral, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], X-ray: detector, Fermi Gamma-ray Space Telescope
Abstract: Publisher's version (útgefin grein)., We use joint observations by the Swift X-ray Telescope (XRT) and the Fermi Large Area Telescope (LAT) of gamma-ray burst (GRB) afterglows to investigate the nature of the long-lived high-energy emission observed by Fermi LAT. Joint broadband spectral modeling of XRT and LAT data reveals that LAT nondetections of bright X-ray afterglows are consistent with a cooling break in the inferred electron synchrotron spectrum below the LAT and/or XRT energy ranges. Such a break is sufficient to suppress the high-energy emission so as to be below the LAT detection threshold. By contrast, LAT-detected bursts are best fit by a synchrotron spectrum with a cooling break that lies either between or above the XRT and LAT energy ranges. We speculate that the primary difference between GRBs with LAT afterglow detections and the nondetected population may be in the type of circumstellar environment in which these bursts occur, with late-time LAT detections preferentially selecting GRBs that occur in low wind-like circumburst density profiles. Furthermore, we find no evidence of high-energy emission in the LATdetected population significantly in excess of the flux expected from the electron synchrotron spectrum fit to the observed X-ray emission. The lack of excess emission at high energies could be due to a shocked external medium in which the energy density in the magnetic field is stronger than or comparable to that of the relativistic electrons behind the shock, precluding the production of a dominant synchrotron self-Compton (SSC) component in the LAT energy range. Alternatively, the peak of the SSC emission could be beyond the 0.1–100 GeV energy range considered for this analysis., Funding text #1 46 Funded by contract FIRB-2012-RBFR12PM1F from the Italian Ministry of Education, University and Research (MIUR). 47 https://fermi.gsfc.nasa.gov/ssc/observations/types/grbs/lat_grbs/ Funding text #2 The Fermi LAT Collaboration acknowledges generous ongoing support from a number of agencies and institutes that have supported both the development and the operation of the LAT, as well as scientific data analysis. These include the National Aeronautics and Space Administration and the Department of Energy in the United States; the Commissariat à l’Energie Atomique and the Centre National de la Recherche Scientifique/Institut National de Physique Nucléaire et de Physique des Particules in France; the Agenzia Spaziale Italiana and the Istituto Nazionale di Fisica Nucleare in Italy; the Ministry of Education, Culture, Sports, Science and Technology (MEXT), High Energy Accelerator Research Organization (KEK), and Japan Aerospace Exploration Agency (JAXA) in Japan; and the K.A.Wallenberg Foundation, the Swedish Research Council, and the Swedish National Space Board in Sweden. Funding text #3 Additional support for science analysis during the operations phase is gratefully acknowledged from the Istituto Nazionale di Astrofisica in Italy and the Centre National d’Études Spatiales in France. This work performed in part under DOE Contract DE-AC02-76SF00515.
Published: 2018
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21. On the Interpretation of the Fermi-GBM Transient Observed in Coincidence with LIGO Gravitational-wave Event GW150914

Author: Péter Veres, Misty Giles, Adam Goldstein, Michael S. Briggs, Colleen A. Wilson-Hodge, P. Shawhan, Melissa Gibby, M. Stanbro, Nelson Christensen, R. M. Kippen, Charles A. Meegan, Oliver J. Roberts, William S. Paciesas, Dale D. Kocevski, Sheila McBreen, Robert D. Preece, Eric Burns, A. von Kienlin, Judith Racusin, John Veitch, Elisabetta Bissaldi, T. B. Littenberg, P. N. Bhat, W. H. Cleveland, Valerie Connaughton, Lindy Blackburn, J. McEnery, C. M. Hui, Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux (ARTEMIS), Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux ( ARTEMIS ), Université Nice Sophia Antipolis ( UNS ), Université Côte d'Azur ( UCA ) -Université Côte d'Azur ( UCA ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de la Côte d'Azur, and Université Côte d'Azur ( UCA ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: Gamma-ray burst: individual (GW150914-GBM), gravitational waves, methods: data analysis, stars: black holes, Astronomy and Astrophysics, Space and Planetary Science, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], FOS: Physical sciences, Binary number, Astrophysics, gamma ray: burst, 01 natural sciences, programming, Coincidence, GLAST, 0103 physical sciences, gamma-ray burst: individual, LIGO, 010306 general physics, 010303 astronomy & astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Gravitational wave, background, gravitational radiation, Sigma, black hole: binary, spectral, Gamma-ray burst, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Event (particle physics), statistical, Fermi Gamma-ray Space Telescope
Abstract: The weak transient detected by the Fermi Gamma-ray Burst Monitor (GBM) 0.4 s after GW150914 has generated much speculation regarding its possible association with the black-hole binary merger. Investigation of the GBM data by Connaughton et al. (2016) revealed a source location consistent with GW150914 and a spectrum consistent with a weak, short Gamma-Ray Burst. Greiner et al. (2016) present an alternative technique for fitting background-limited data in the low-count regime, and call into question the spectral analysis and the significance of the detection of GW150914-GBM presented in Connaughton et al. (2016). The spectral analysis of Connaughton et al. (2016) is not subject to the limitations of the low-count regime noted by Greiner et al. (2016). We find Greiner et al. (2016) used an inconsistent source position and did not follow the steps taken in Connaughton et al. (2016) to mitigate the statistical shortcomings of their software when analyzing this weak event. We use the approach of Greiner et al. (2016) to verify that our original spectral analysis is not biased. The detection significance of GW150914-GBM is established empirically, with a False Alarm Rate (FAR) of $\sim 10^{-4}$~Hz. A post-trials False Alarm Probability (FAP) of $2.2 \times 10^{-3}$ ($2.9 \sigma$) of this transient being associated with GW150914 is based on the proximity in time to the GW event of a transient with that FAR. The FAR and the FAP are unaffected by the spectral analysis that is the focus of Greiner et al. (2016)., Comment: Accepted for publication in ApJL
Published: 2018

22. Search for Gamma-Ray Emission from Local Primordial Black Holes with the Fermi Large Area Telescope

Author: J. B. Thayer, A. Chekhtman, P. Lubrano, Stefano Ciprini, Luca Latronico, Igor V. Moskalenko, Eleonora Troja, M. Razzano, Carmelo Sgrò, Riccardo Rando, J. F. Ormes, Filippo D'Ammando, Olaf Reimer, D. Horan, Roger Blandford, E. Nuss, Elliott D. Bloom, David Paneque, M. Kuss, R. Buehler, C. C. Cheung, J. Valverde, C. Favuzzi, Vaidehi S. Paliya, F. de Palma, P. Fusco, Julie McEnery, F. Spada, J. Li, Francesco Longo, Johann Cohen-Tanugi, Peter F. Michelson, Marcello Giroletti, S. J. Fegan, Stefan Larsson, L. Di Venere, J. D. Magill, Gabrijela Zaharijas, Stefan Funk, Roopesh Ojha, R. Bonino, Regina Caputo, J. G. Thayer, Eric Charles, Daniel Kocevski, I. A. Grenier, N. Di Lalla, Luca Baldini, M. Palatiello, Steven Ritz, D. J. Suson, M. N. Mazziotta, Warit Mitthumsiri, Sylvain Guiriec, E. Cavazzuti, Soebur Razzaque, David H. Green, Diego F. Torres, S. Kensei, W. B. Focke, Gloria Spandre, D. Costantin, F. Loparco, Matteo Negro, A. Morselli, Anna Franckowiak, E. Orlando, Massimo Persic, S. Rainò, Tsunefumi Mizuno, P. Spinelli, Francesco Giordano, M. Di Mauro, Gudlaugur Johannesson, J. Bregeon, E. Moretti, Dario Gasparrini, K. S. Wood, M. E. Monzani, Manuel Meyer, Guido Barbiellini, R. A. Cameron, Yasushi Fukazawa, Nicola Omodei, Melissa Pesce-Rollins, M. Orienti, P. Bruel, Miguel A. Sánchez-Conde, S. Maldera, F. Piron, Hiroyasu Tajima, Jan Conrad, G. Chiaro, C. A. Johnson, W. B. Atwood, Nicola Giglietto, M. N. Lovellette, P. A. Caraveo, E. J. Siskind, Markus Ackermann, F. Gargano, Giacomo Principe, A. Reimer, G. Tosti, B. Berenji, Giacomo Vianello, Seth Digel, Ronaldo Bellazzini, D. Malyshev, Matthew Wood, J. Ballet, Elisabetta Bissaldi, Denis Bastieri, Eugenio Bottacini, Alberto Manfreda, L. Guillemot, Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Fermi-LAT, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Laboratoire Univers et Particules de Montpellier ( LUPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), Laboratoire Leprince-Ringuet ( LLR ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -École polytechnique ( X ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), ITA, Ackermann, M., Atwood, W. B., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Berenji, B., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caraveo, P. A., Cavazzuti, E., Charles, E., Chekhtman, A., Cheung, C. C., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Conrad, J., Costantin, D., D'Ammando, F., Palma, F. De, Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Favuzzi, C., Fegan, S. J., Focke, W. B., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Horan, D., Jóhannesson, G., Johnson, C., Kensei, S., Kocevski, D., Kuss, M., Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Malyshev, D., Manfreda, A., Mazziotta, M. N., Mcenery, J. E., Meyer, M., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ojha, R., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Palatiello, M., Paliya, V. S., Paneque, D., Persic, M., Pesce-Rollins, M., Piron, F., Principe, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Ritz, S., Sánchez-Conde, M., Sgrò, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Thayer, J. G., Thayer, J. B., Torres, D. F., Tosti, G., Troja, E., Valverde, J., Vianello, G., Wood, K., Wood, M., and Zaharijas, G.
Subjects: [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], black hole physics, Primordial black hole, Astrophysics, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, evaporation, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010303 astronomy & astrophysics, Stellar evolution, media_common, Physics, lifetime, Gamma ray, astroparticle physic, observatory, gamma ray: emission, astroparticle physics, Astrophysics - High Energy Astrophysical Phenomena, black hole: primordial, burst, methods: data analysis, Astronomy and Astrophysics, Space and Planetary Science, Proper motion, media_common.quotation_subject, Astrophysics::High Energy Astrophysical Phenomena, primordial [black hole], GLAST, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], emission [gamma ray], 0103 physical sciences, Astroparticle physics, 010308 nuclear & particles physics, temperature, Astronomy and Astrophysic, black hole physic, Galaxy, Universe, confidence limit, 13. Climate action, [SDU]Sciences of the Universe [physics], data analysi [methods], ddc:520, galaxy, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope
Abstract: Black holes with masses below approximately $10^{15}$ g are expected to emit gamma rays with energies above a few tens of MeV, which can be detected by the Fermi Large Area Telescope (LAT). Although black holes with these masses cannot be formed as a result of stellar evolution, they may have formed in the early Universe and are therefore called Primordial Black Holes (PBHs). Previous searches for PBHs have focused on either short timescale bursts or the contribution of PBHs to the isotropic gamma-ray emission. We show that, in case of individual PBHs, the Fermi LAT is most sensitive to PBHs with temperatures above approximately 16 GeV and masses $6\times 10^{11}$ g, which it can detect out to a distance of about 0.03 pc. These PBHs have a remaining lifetime of months to years at the start of the Fermi mission. They would appear as potentially moving point sources with gamma-ray emission that becomes spectrally harder and brighter with time until the PBH completely evaporates. In this paper, we develop a new algorithm to detect the proper motion of a gamma-ray point sources, and apply it to 318 unassociated point sources at high galactic latitude in the third Fermi-LAT source catalog (3FGL). None of unassociated point sources with spectra consistent with PBH evaporation show significant proper motion. Using the non-detection of PBH candidates, we derive a 99\% confidence limit on PBH evaporation rate in the vicinity of the Earth $\dot{\rho}_{\rm PBH} < 7.2 \times 10^3\: {\rm {pc}^{-3} {yr}^{-1}}$. This limit is similar to the limits obtained with ground-based gamma-ray observatories., Comment: Accepted by ApJ. Corresponding authors: Christian Johnson, Dmitry Malyshev, Steve Ritz, Stefan Funk
Published: 2018

23. Fermi-LAT Observations of LIGO/Virgo Event GW170817

Author: G. Chiaro, Marco Ajello, Diego F. Torres, Stefano Ciprini, J. B. Thayer, G. Jóhannesson, E. Moretti, Eleonora Troja, Nicola Omodei, Ronaldo Bellazzini, R. Buehler, E. J. Siskind, J. F. Ormes, Chong Yang, L. Guillemot, E. Orlando, T. J. Brandt, Stefan Funk, J. Li, Peter F. Michelson, Magnus Axelsson, L. R. Cominsky, Igor V. Moskalenko, Elliott D. Bloom, S. Cutini, A. A. Moiseev, Marcello Giroletti, Olaf Reimer, D. Horan, F. Loparco, Carmelo Sgrò, Riccardo Rando, A. Chekhtman, Johan Bregeon, P. Lubrano, Francesco Longo, I. A. Grenier, E. Cavazzuti, David H. Green, R. A. Cameron, J. L. Racusin, A. Reimer, Nicola Giglietto, E. Nuss, David Paneque, C. Favuzzi, Gloria Spandre, M. Kuss, Vahé Petrosian, Giacomo Principe, James Chiang, F. de Palma, F. Gargano, Johann Cohen-Tanugi, P. Fusco, L. Di Venere, Roger Blandford, Hiroyasu Tajima, Roopesh Ojha, Gabrijela Zaharijas, Denis Bastieri, Luca Latronico, K. S. Wood, J. G. Thayer, M. Di Mauro, Gino Tosti, D. Dumora, Elizabeth C. Ferrara, B. Berenji, Giacomo Vianello, M. N. Lovellette, P. A. Caraveo, J. M. Casandjian, R. Bonino, J. Granot, Steven Ritz, D. J. Suson, T. H. Burnett, C. C. Cheung, F. Piron, J. Valverde, Alice K. Harding, Melissa Pesce-Rollins, Tonia M. Venters, G. La Mura, Regina Caputo, N. Di Lalla, Luca Baldini, M. Takahashi, M. Palatiello, M. E. Monzani, M. N. Mazziotta, D. Tak, Sylvain Guiriec, R. Gill, Anna Franckowiak, D. Costantin, S. Rainò, Tsunefumi Mizuno, Vaidehi S. Paliya, Yasushi Fukazawa, P. M. Saz Parkinson, J. D. Magill, Soebur Razzaque, Alice Allafort, Elisabetta Bissaldi, P. Bruel, Matthew G. Baring, Sara Buson, T. A. Porter, Daniel Kocevski, Fumiya Imazato, T. Glanzman, R. Dubois, E. Hays, P. Spinelli, Francesco Giordano, F. Spada, Eugenio Bottacini, Alberto Manfreda, Dario Gasparrini, Stefan Larsson, M. Razzano, Filippo D'Ammando, Alessandro Cuoco, M.-H. Grondin, S. Maldera, T. Kamae, Eleonora Torresi, Massimo Persic, Felix Ryde, Guido Barbiellini, L. S. Rochester, S. Kensei, Matteo Negro, A. Morselli, ITA, Laboratoire Univers et Particules de Montpellier (LUPM), Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Ajello, M., Allafort, A., Axelsson, M., Baldini, L., Barbiellini, G., Baring, M. G., Bastieri, D., Bellazzini, R., Berenji, B., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Burnett, T. H., Buson, S., Cameron, R. A., Caputo, R., Caraveo, P. A., Casandjian, J. M., Cavazzuti, E., Chekhtman, A., Cheung, C. C., Chiang, J., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Cominsky, L. R., Costantin, D., Cuoco, A., Cutini, S., D'Ammando, F., Palma, F. De, Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Dubois, R., Dumora, D., Favuzzi, C., Ferrara, E. C., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Gill, R., Giordano, F., Giroletti, M., Glanzman, T., Granot, J., Green, D., Grenier, I. A., Grondin, M. -H., Guillemot, L., Guiriec, S., Harding, A. K., Hays, E., Horan, D., Imazato, F., Jóhannesson, G., Kamae, T., Kensei, S., Kocevski, D., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mazziotta, M. N., Michelson, P. F., Mizuno, T., Moiseev, A. A., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ojha, R., Omodei, N., Orlando, E., Ormes, J. F., Palatiello, M., Paliya, V. S., Paneque, D., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Racusin, J. L., Raino, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Ritz, S., Rochester, L. S., Ryde, F., Parkinson, P. M. Saz, Sgro, C., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Takahashi, M., Tak, D., Thayer, J. G., Thayer, J. B., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Valverde, J., Venters, T. M., Vianello, G., Wood, K., Yang, C., Zaharijas, G., Raunvísindastofnun (HÍ), Science Institute (UI), Verkfræði- og náttúruvísindasvið (HÍ), School of Engineering and Natural Sciences (UI), Háskóli Íslands, University of Iceland, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES)
Subjects: neutron star: binary, Gammageislar, gamma-ray burst: general, Astrophysics, general [gamma-ray burst], 01 natural sciences, Gamma-ray, Luminosity, gamma rays: general, gravitational waves, gamma ray: flux, LIGO, gravitational wave, 010303 astronomy & astrophysics, Physics, energy: high, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], Gamma-ray burst: general, Astrophysics::High Energy Astrophysical Phenomena, Context (language use), Astrophysics::Cosmology and Extragalactic Astrophysics, gamma ray: burst, gravitational radiation: direct detection, GLAST, Gravitational waves, binary: coalescence, 0103 physical sciences, ddc:530, 010306 general physics, Gamma-ray burst, Astrophysics::Galaxy Astrophysics, Gravitational wave, Astronomy and Astrophysics, trigger, Astronomy and Astrophysic, Stjarneðlisfræði, redshift, Redshift, gravitational radiation detector, Neutron star, electromagnetic, VIRGO, [SDU]Sciences of the Universe [physics], Space and Planetary Science, gravitational radiation: emission, ddc:520, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: Publisher's version (útgefin grein), We present the Fermi Large Area Telescope (LAT) observations of the binary neutron star merger event GW170817 and the associated short gamma-ray burst (SGRB) GRB 170817A detected by the Fermi Gamma-ray Burst Monitor. The LAT was entering the South Atlantic Anomaly at the time of the LIGO/Virgo trigger (t GW) and therefore cannot place constraints on the existence of high-energy (E > 100 MeV) emission associated with the moment of binary coalescence. We focus instead on constraining high-energy emission on longer timescales. No candidate electromagnetic counterpart was detected by the LAT on timescales of minutes, hours, or days after the LIGO/Virgo detection. The resulting flux upper bound (at 95% C.L.) from the LAT is 4.5 × 10−10 erg cm−2 s−1 in the 0.1–1 GeV range covering a period from t GW + 1153 s to t GW + 2027 s. At the distance of GRB 170817A, this flux upper bound corresponds to a luminosity upper bound of 9.7 × 1043 erg s−1, which is five orders of magnitude less luminous than the only other LAT SGRB with known redshift, GRB 090510. We also discuss the prospects for LAT detection of electromagnetic counterparts to future gravitational-wave events from Advanced LIGO/Virgo in the context of GW170817/GRB 170817A., This work performed in part under DOE Contract DE-AC02-76SF00515.
Published: 2018

24. Analysis of Sub-threshold Short Gamma-Ray Bursts in Fermi GBM Data

Author: J. L. Racusin, Péter Veres, Valerie Connaughton, Colleen A. Wilson-Hodge, Dale D. Kocevski, Eric Burns, Tyson Littenberg, Adam Goldstein, Oliver J. Roberts, A. von Kienlin, Elisabetta Bissaldi, C. M. Hui, Lindy Blackburn, Michael S. Briggs, Rachel Hamburg, and T. Dal Canton
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Gamma rays: general, FOS: Physical sciences, Astrophysics, 01 natural sciences, Coincidence, law.invention, gravitational waves, methods: observational, Telescope, Observatory, law, 0103 physical sciences, 010303 astronomy & astrophysics, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, Gravitational wave, Detector, Astronomy and Astrophysics, LIGO, Space and Planetary Science, Gamma-ray burst, Astrophysics - High Energy Astrophysical Phenomena, Fermi Gamma-ray Space Telescope
Abstract: The Fermi Gamma-ray Burst Monitor (GBM) is currently the most prolific detector of Gamma-Ray Bursts (GRBs). Recently the detection rate of short GRBs (SGRBs) has been dramatically increased through the use of ground-based searches that analyze GBM continuous time tagged event (CTTE) data. Here we examine the efficiency of a method developed to search CTTE data for sub-threshold transient events in temporal coincidence with LIGO/Virgo compact binary coalescence triggers. This targeted search operates by coherently combining data from all 14 GBM detectors by taking into account the complex spatial and energy dependent response of each detector. We use the method to examine a sample of SGRBs that were independently detected by the Burst Alert Telescope on board the Neil Gehrels Swift Observatory, but which were too intrinsically weak or viewed with unfavorable instrument geometry to initiate an on-board trigger of GBM. We find that the search can successfully recover a majority of the BAT detected sample in the CTTE data. We show that the targeted search of CTTE data will be crucial in increasing the GBM sensitivity, and hence the gamma-ray horizon, to weak events such as GRB 170817A. We also examine the properties of the GBM signal possibly associated with the LIGO detection of GW150914 and show that it is consistent with the observed properties of other sub-threshold SGRBs in our sample. We find that the targeted search is capable of recovering true astrophysical signals as weak as the signal associated with GW150914 in the untriggered data., 10 pages, 9 figures, 1 table, submitted to ApJ
Published: 2018

25. Assembly and test of photo-detection modules for the Schwarzschild Couder Medium Size Telescope prototype for the Cherenkov Telescope Array

Author: Maria Ionica, A. Rugliancich, M. Ambrosio, C. Bonavolontà, G. Ambrosi, S. Loporchio, V. Masone, M. Valentino, Riccardo Paoletti, V. Vagelli, Elisabetta Bissaldi, A. Boiano, M. Mongelli, Carla Aramo, L. Consiglio, M. Caprai, Francesco Giordano, L. Tosti, B. Bertucci, E. Fiandrini, Nicola Giglietto, and L. Di Venere
Subjects: Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, SiPM, Photodetection, 01 natural sciences, law.invention, Telescope, Optics, Silicon photomultiplier, Observatory, law, 0103 physical sciences, Cherenkov telescope, Front-end electronics, Instrumentation, 010303 astronomy & astrophysics, Physics, CTA, 010308 nuclear & particles physics, business.industry, Astrophysics::Instrumentation and Methods for Astrophysics, Cherenkov Telescope Array, Metrology, Cardinal point, business, Schwarzschild radius
Abstract: The Schwarzschild Couder Medium Size Telescope prototype (pSCT) is going to test the Schwarzschild Couder solution proposed for Medium Size telescopes for the Cherenkov Telescope Array. The camera consists of 177 photodetection modules grouped into sectors of maximum 25 modules each. The sensitive elements of the modules, located in the focal plane of the telescope, are matrices of 64 6 mm × 6 mm pixels of Silicon Photomultipliers (SiPMs). The front-end electronics is designed for signal sampling technique using the TARGET-7 ASIC. The prototype under construction and test at the Fred Lawrence Whipple Observatory site will be equipped with the inner central sector fully operational. Sensors from Fondazione Bruno Kessler will be used for 9 of the 25 modules. A complete characterization of these very recent, highly sensitive Near UV sensors, the assembly procedure and metrology results on several focal plane elements has been conducted. Performances of the 16-sensors matrices and measurements with the TARGET-7 ASIC front-end coupled to FBK sensors will be shown and deeply discussed.
Published: 2018

26. Development of a 16-channel matrix of photodetection sensors for medical imaging and astrophysical applications

Author: G. Ambrosi, E. Fiandrini, M. Ambrosio, Maria Ionica, S. Loporchio, M. Mongelli, Valerio Vagelli, N. Giglietto, C. de Lisio, Elisabetta Bissaldi, A. Boiano, R. Paoletti, Andrea Rugliancich, Carla Aramo, V. Postolache, V. Masone, F. Licciulli, L. Di Venere, M. Valentino, C. Bonavolontà, and Ferdinando Giordano
Subjects: Astroparticle physics, Physics, Cherenkov Telescope Array, Pixel, 010308 nuclear & particles physics, business.industry, Front-end electronics, Photon Imaging, Silicon PhotoMultipliers, Electrical and Electronic Engineering, Instrumentation, 01 natural sciences, law.invention, Metrology, Telescope, Cardinal point, Optics, Silicon photomultiplier, law, 0103 physical sciences, Medical imaging, business, 010303 astronomy & astrophysics
Abstract: Recen% developed near W-photosensors are currently adopted in those applications where high sensitivity and good imaging capabilities are required, especially in fields such as astroparticle physics and medical imaging. An example of such applications is the camera of the Schwarzschild Couder Medium Size Telescope prototype (pSCT) which is in construction within the Cherenkov Telescope Array experiment. The camera consists of 177 photo-detection modules grouped into sectors of 25 modules, each based on matrixes of 64 6mm × 6mm pixels of SiUcon PhotomultipUers (SiPMs). Sensors produced by the Fondazione Bruno Kessler (FBK) in Italy are currently under investigation. Here we present a complete characterization of these highly sensitive near UV sensors, the assembly procedure and metrology results on several focal plane elements.
Published: 2017

27. Towards the development of a SiPM-based module for the camera of the Schwarzschild-Couder Telescope prototype of the Cherenkov Telescope Array

Author: C. Bonavolontà, M. De Lucia, R. Paoletti, Maria Ionica, V. Postolache, Valerio Vagelli, Ferdinando Giordano, A. Boiano, N. Giglietto, Andrea Rugliancich, M. Ambrosio, S. Loporchio, E. Fiandrini, V. Masone, D. Simone, Carla Aramo, Elisabetta Bissaldi, F. Licciulli, L. Di Venere, M. Valentino, and G. Ambrosi
Subjects: 010302 applied physics, Physics, Cherenkov Telescope Array, 010308 nuclear & particles physics, SchwarzschildCouder Telescope, Applied Mathematics, Astronomy, Computer Science Applications1707 Computer Vision and Pattern Recognition, Silicon Photomultipliers, TARGET, Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Electrical and Electronic Engineering, 01 natural sciences, law.invention, Telescope, Silicon photomultiplier, law, 0103 physical sciences, Electronic, Optical and Magnetic Materials, Schwarzschild radius
Published: 2017

28. The Fermi-GBM Gamma-Ray Burst Catalogs: The First Six Years

Author: P. N. Bhat, Hoi-Fung Yu, and Elisabetta Bissaldi
Subjects: Physics, Astrophysics::High Energy Astrophysical Phenomena, QC1-999, 05 social sciences, Astronomy, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 050105 experimental psychology, Spectral line, Physics and Astronomy (all), 0103 physical sciences, 0501 psychology and cognitive sciences, Spectral analysis, Spectral resolution, Gamma-ray burst, 010303 astronomy & astrophysics, Fermi Gamma-ray Space Telescope
Abstract: Since its launch in 2008, the Fermi Gamma-ray Burst Monitor (GBM) has triggered and located on average approximately two gamma-ray bursts (GRBs) every three days. Here we present the main results from the latest two catalogs provided by the Fermi-GBM science team, namely the third GBM GRB catalog [1] and the first GBM time-resolved spectral catalog [2]. The intention of the GBM GRB catalog is to provide information to the community on the most important observables of the GBM detected bursts. It comprises 1405 triggers identified as GRBs. For each one, location and main characteristics of the prompt emission, the duration, the peak flux and the fluence are derived. The GBM time-resolved spectral catalog presents high-quality time-resolved spectral analysis with high temporal and spectral resolution of the brightest bursts observed by Fermi GBM in a shorter period than the former catalog, namely four years. It comprises 1491 spectra from 81 bursts. Distributions of parameters, statistics of the parameter populations, parameter-parameter and parameter-uncertainty correlations, and their exact values are obtained.
Published: 2017

29. The Fermi Galactic Center GeV Excess and Implications for Dark Matter

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

30. 3FHL: The Third Catalog of Hard Fermi-LAT Sources

Author: Igor V. Moskalenko, Lukasz Stawarz, Olaf Reimer, Seb. Funk, Diego F. Torres, Nicola Omodei, M. Razzano, M.-H. Grondin, Filippo D'Ammando, C. Favuzzi, M. Caragiulo, Alessandro Cuoco, E. J. Siskind, Jean Ballet, R. A. Cameron, F. Piron, Stefano Ciprini, J. M. Cohen, Alice K. Harding, M. N. Mazziotta, Seth Digel, Francesco Longo, R. Desiante, S. Cutini, A. A. Moiseev, Elliott D. Bloom, Jingcheng Li, Pascal Bruel, R. Buehler, F. Spada, D. Horan, Aaron Dominguez, Stefan Larsson, Marco Ajello, J. B. Thayer, F. Loparco, Peter F. Michelson, Marcello Giroletti, C. C. Cheung, N. Di Lalla, M. Di Mauro, Luca Baldini, M. Takahashi, T. Reposeur, Benoit Lott, Roger Blandford, P. Fusco, Sara Buson, D. J. Thompson, M. Palatiello, R. J. Britto, John W. Hewitt, F. de Palma, Sylvain Guiriec, R. Bonino, S. J. Fegan, A. Reimer, T. A. Porter, Matthew Wood, Johan Bregeon, Giacomo Principe, E. Orlando, Julie McEnery, Kent S. Wood, F. Gargano, Nestor Mirabal, P. Fortin, Soebur Razzaque, Luca Latronico, Giacomo Vianello, G. La Mura, Elizabeth C. Ferrara, J. G. Thayer, Regina Caputo, D. Costantin, D. Dumora, A. Chekhtman, P. Lubrano, W. B. Atwood, Ronaldo Bellazzini, Vaidehi S. Paliya, M. E. Monzani, J. S. Perkins, Nicola Giglietto, E. Hays, Anna Franckowiak, S. Rainò, Tsunefumi Mizuno, G. Chiaro, P. A. Caraveo, J. E. Grove, Yasushi Fukazawa, Persis S. Drell, J. D. Magill, Eric Charles, Manuel Meyer, D. J. Suson, Melissa Pesce-Rollins, I. A. Grenier, Dario Gasparrini, Warit Mitthumsiri, E. Cavazzuti, David H. Green, Gloria Spandre, P. Spinelli, L. Di Venere, M. Lemoine-Goumard, Francesco Giordano, D. Tak, Carmelo Sgrò, Riccardo Rando, D. Simone, E. Nuss, David Paneque, M. Kuss, T. Ohsugi, Eleonora Troja, M. Orienti, S. Maldera, F. Costanza, Eleonora Torresi, Elisabetta Bissaldi, Gudlaugur Johannesson, Lucas Guillemot, Guido Barbiellini, Paolo Giommi, Massimo Persic, T. Glanzman, Alberto Manfreda, Denis Bastieri, Claudia Cecchi, S. Kensei, Matteo Negro, A. Morselli, P. M. Saz Parkinson, Department of Physics and Astronomy [Clemson], Clemson University, Santa Cruz Institute for Particle Physics (SCIPP), University of California [Santa Cruz] (UCSC), University of California-University of California, University of Pisa - Università di Pisa, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (INFN, Sezione di Trieste), Istituto Nazionale di Fisica Nucleare (INFN), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (INFN, Sezione di Padova), Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Stanford University, Istituto Nazionale di Fisica Nucleare, Sezione di Torino (INFN, Sezione di Torino), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) (MPI-P), Istituto Nazionale di Fisica Nucleare, sezione di Bari (INFN, sezione di Bari), Agenzia Spaziale Italiana (ASI) Science Data Center, George Mason University [Fairfax], Universita degli Studi di Padova, 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), Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Istituto Nazionale di Astrofisica (INAF), Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Humboldt-Universität zu Berlin, Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Science Institute, University of Iceland, University of Iceland [Reykjavik], Hiroshima City University, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (INFN, Sezione di Perugia), Laboratoire d'interaction du rayonnement X avec la matière (LIXAM), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), NASA Goddard Space Flight Center (GSFC), Mahidol University [Bangkok], Hiroshima University, Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tor Vergata (INFN, Sezione di Roma Tor Vergata), Istituto di Radioastronomia INAF, INAF - Osservatorio Astronomico di Trieste (OAT), PPM Group [University of Johannesburg], Department of Geology [University of Johannesburg], University of Johannesburg (UJ)-University of Johannesburg (UJ), NYCB Real-Time Computing Inc., Lattingtown, NYCB Real-Time Computing Inc. [Lattingtown], IEEC-CSIC, Universitat Autònoma de Barcelona (UAB), Istituto di Astrofisica Spaziale e Fisica cosmica - Bologna (IASF-Bo), Fermi-LAT Collaboration, Ajello, M., Atwood, W. B., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bregeon, J., Britto, R. J., Bruel, P., Buehler, R., Buson, S., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Cheung, C. C., Chiaro, G., Ciprini, S., Cohen, J. M., Costantin, D., Costanza, F., Cuoco, A., Cutini, S., D'Ammando, F., De Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Domnguez, A., Drell, P. S., Dumora, D., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Fortin, P., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giommi, P., Giordano, F., Giroletti, M., Glanzman, T., Green, D., Grenier, I. A., Grondin, M. -H., Grove, J. E., Guillemot, L., Guiriec, S., Harding, A. K., Hays, E., Hewitt, J. W., Horan, D., Jóhannesson, G., Kensei, S., Kuss, M., La Mura, G., Larsson, S., Latronico, L., Lemoine-Goumard, M., Li, J., Longo, F., Loparco, F., Lott, B., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mazziotta, M. N., Mcenery, J. E., Meyer, M., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Moiseev, A. A., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Palatiello, M., Paliya, V. S., Paneque, D., Perkins, J. S., Persic, M., Pesce-Rollins, M., Piron, F., Porter, T. A., Principe, G., Raino, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Reposeur, T., Saz Parkinson, P. M., Sgro, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Stawarz, L., Suson, D. J., Takahashi, M., Tak, D., Thayer, J. G., Thayer, J. B., Thompson, D. J., Torres, D. F., Torresi, E., Troja, E., Vianello, G., Wood, K., Wood, M., National Institute for Nuclear Physics (INFN), Stanford University [Stanford], Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-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), Humboldt Universität zu Berlin, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Universitat Autònoma de Barcelona [Barcelona] (UAB), ITA, University of California [Santa Cruz] (UC Santa Cruz), University of California (UC)-University of California (UC), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Padova = University of Padua (Unipd), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Humboldt University Of Berlin, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), and University of Johannesburg [South Africa] (UJ)-University of Johannesburg [South Africa] (UJ)
Subjects: catalog, Astrophysics::High Energy Astrophysical Phenomena, catalogs, gamma rays: general, FOS: Physical sciences, Energy flux, Flux, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 7. Clean energy, 01 natural sciences, Astronomy and Astrophysics, Space and Planetary Science, law.invention, Telescope, law, 0103 physical sciences, catalogs – gamma rays: general, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, High Energy Astrophysical Phenomena (astro-ph.HE), Physics, 010308 nuclear & particles physics, Astronomy, Galactic plane, Astronomy and Astrophysic, Redshift, Galaxy, Crab Nebula, [SDU]Sciences of the Universe [physics], ddc:520, Astrophysics - High Energy Astrophysical Phenomena, general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: We present a catalog of sources detected above 10 GeV by the Fermi Large Area Telescope (LAT) in the first 7 years of data using the Pass 8 event-level analysis. This is the Third Catalog of Hard Fermi-LAT Sources (3FHL), containing 1556 objects characterized in the 10 GeV - 2 TeV energy range. The sensitivity and angular resolution are improved by factors of 3 and 2 relative to the previous LAT catalog at the same energies (1FHL). The vast majority of detected sources (79%) are associated with extragalactic counterparts at other wavelengths, including 16 sources located at very high redshift ($z>2$). Eight percent of the sources have Galactic counterparts and 13% are unassociated (or associated with a source of unknown nature). The high-latitude sky and the Galactic plane are observed with a flux sensitivity of 4.4 to 9.5$\times 10^{-11}$ ph cm$^{-2}$ s$^{-1}$, respectively (this is approximately 0.5% and 1% of the Crab Nebula flux above 10 GeV). The catalog includes 214 new $\gamma$-ray sources. The substantial increase in the number of photons (more than 4 times relative to 1FHL and 10 times to 2FHL) also allows us to measure significant spectral curvature for 32 sources and find flux variability for 163 of them. Furthermore, we estimate that for the same flux limit of $10^{-12}$ erg cm$^{-2}$ s$^{-1}$, the energy range above 10 GeV has twice as many sources as above 50 GeV, highlighting the importance, for future Cherenkov telescopes, of lowering the energy threshold as much as possible., Comment: Accepted by ApJS. Contact authors: Alberto Dominguez, Marco Ajello, Benoit Lott, Sara Cutini, Pascal Fortin. The full FITS catalog will be made available at the FSSC: https://fermi.gsfc.nasa.gov/ssc/
Published: 2017

31. Fermi-LAT Observations of High-energy Behind-the-limb Solar Flares

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

32. Silicon Photomultipliers and front-end electronics performance for Cherenkov Telescope Array camera development

Author: Valerio Vagelli, Francesco Giordano, Riccardo Paoletti, Riccardo Rando, D. Simone, Maria Ionica, Giovanni Ambrosi, Elisabetta Bissaldi, and Nicola Giglietto
Subjects: Physics, Photomultiplier, Nuclear and High Energy Physics, Cherenkov Telescope Array, 010308 nuclear & particles physics, business.industry, Photodetector, Silicon photomultiplier, Avalanche photodiode, 01 natural sciences, Particle detector, Photodiode, law.invention, Optics, Instrumentation, law, 0103 physical sciences, Optoelectronics, business, 010303 astronomy & astrophysics, Cherenkov radiation
Abstract: In the last few years a number of efforts have been undertaken to develop new technology related to Silicon Photomultipliers (SiPMs). These photosensors consist of an array of identical Avalanche Photodiodes operating in Geiger mode and connected in parallel to a single output. The Italian Institute of Nuclear Physics (INFN) is involved in the R&D program Progetto Premiale Telescopi CHErenkov made in Italy (TECHE.it) to develop photosensors for a SiPM based camera that will be part of the Cherenkov Telescope Array (CTA) observatory. In this framework tests are ongoing on innovative devices suitable to detect Cherenkov light in the blue and near-UV wavelength region, the so-called Near Ultra-Violet Silicon Photomultipliers (NUV SiPMs). The tests on photosensors produced by Fondazione Bruno Kessler (FBK) are revealing promising performance: low operating voltage, capability to detect very low intensity light down to a single photon and high Photo Detection Efficiency (PDE) in the range 390–410 nm. In particular the developed device is a High Density NUV-SiPM (NUV-HD SiPM) based on a micro-cell of 30 μm×30 μm and 6 mm×6 mm area. Tests on this detector in single-cell configuration and in a matrix arrangement have been done. At the same time front-end electronics based on the waveform sampling technique optimized for the new NUV-HD SIPMs is under study and development.
Published: 2017

33. Constraints on the bulk Lorentz factor of gamma-ray burst jets from Fermi/LAT upper limits

Author: Lara Nava, R. Desiante, Francesco Longo, Nicola Omodei, Elisabetta Bissaldi, Tsvi Piran, Giacomo Vianello, Annalisa Celotti, ITA, USA, ISR, Nava, L, Desiante, R., Longo, Francesco, Celotti, A., Omodei, N., Vianello, G., Bissaldi, E., and Piran, T.
Subjects: Radiation mechanisms: non-thermal, Lorentz transformation, Astrophysics::High Energy Astrophysical Phenomena, Flux, FOS: Physical sciences, Astrophysics, 01 natural sciences, 7. Clean energy, symbols.namesake, Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, 010303 astronomy & astrophysics, radiation mechanisms: non-thermal, gamma-rays: general, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Range (particle radiation), general [Gamma-rays], non-thermal [Radiation mechanisms], 010308 nuclear & particles physics, Gamma-rays: general, Astronomy and Astrophysics, Space and Planetary Science, Astronomy and Astrophysic, Redshift, Afterglow, Lorentz factor, symbols, Gamma-ray burst, Astrophysics - High Energy Astrophysical Phenomena, Fermi Gamma-ray Space Telescope
Abstract: It is largely recognized that Gamma-Ray Burst (GRB) jets involve ultra-relativistic motion. However, the value of the Lorentz factor Gamma_0 is still not clear and only lower limits are known for most bursts. We suggest here a new method to obtain upper limits on Gamma_0. The early high-energy synchrotron afterglow flux depends strongly on Gamma_0. Upper limits on GeV emission therefore provide uppers limit on Gamma_0. Applying this method to 190 Fermi GRBs that have not been detected by the Fermi-LAT we place upper limits on the high-energy afterglow flux, and in turn on Gamma_0. For bursts at a typical redshift z=2, we find values of the order of 200 (and above) for a homogeneous density medium, and in the range 100-400 for a wind-like medium. These upper limits are consistent with (and are very close to) lower limits and direct estimates inferred using other methods, suggesting that the typical Lorentz factors of GRB jets are of order a few hundred., Accepted for publication in MNRAS
Published: 2017

34. Prospects for detecting Gamma-Ray Bursts with the Cherenkov Telescope Array

Author: T. Gasparetto, F. Di Pierro, Carlo Vigorito, Francesco Longo, T. Di Girolamo, Elisabetta Bissaldi, Piero Vallania, Di Girolamo, T., Bissaldi, E., Di Pierro, F., Gasparetto, T., Longo, F., Vallania, P., and Vigorito, C. F.
Subjects: Nuclear and High Energy Physics, Particle physics, Astrophysics::High Energy Astrophysical Phenomena, Cherenkov telescopes, Astrophysics::Cosmology and Extragalactic Astrophysics, High-energy gamma rays, Gamma-ray bursts, 01 natural sciences, law.invention, Telescope, law, 0103 physical sciences, Gamma-ray burst, 010303 astronomy & astrophysics, Event reconstruction, Physics, 010308 nuclear & particles physics, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, GRB 130427A, High-energy gamma ray, Cherenkov Telescope Array, Cherenkov telescope, Satellite, Fermi Gamma-ray Space Telescope
Abstract: The Large Area Telescope (LAT) on the Fermi gamma-ray satellite telescope observes Gamma-Ray Bursts (GRBs) at energies above 100 MeV. Thanks to a new detection algorithm and a new event reconstruction, it is expected to publish a catalogue with more than 100 GRBs. This work aims at revising the prospects for GRB alerts with the Cherenkov Telescope Array (CTA) based on the new LAT results. We start by considering the simulation of the observations with the full CTA of two extremely bright events, the long GRB 130427A and the short GRB 090510; then we investigate how these GRBs would be observed by different subsamples of the array pointing to different directions, adopting the “coupled divergent” mode.
Published: 2017

35. Prospects for Cherenkov Telescope Array Observations of the Young Supernova Remnant RX J1713.7−3946

Author: Csaba Balázs, M. Servillat, F. D'Ammando, D. Nosek, T. Yamamoto, A. Bilinsky, H.-S. Zechlin, Francesco Dazzi, A. Fernández-Barral, Satoshi Yoshiike, Catherine Boisson, Philippe Laporte, K. Nishijima, Yutaka Fujita, T. Armstrong, A. Shalchi, S. Kimura, D. Nakajima, Fuyuki Tokanai, Francesco Longo, S. Pavy, Philip Kaaret, W. van Driel, Gianpiero Tagliaferri, L. Nogués, F. Di Pierro, Wystan Benbow, T. Stolarczyk, Marco Padovani, T. Di Girolamo, Johan Bregeon, J. Rico, R. Wischnewski, A. Sillanpää, T. Grabarczyk, E. Pueschel, P. Blasi, S. D. Vergani, A. De Franco, C. Bonavolontà, J. Prast, J. Zorn, Elisabetta Bissaldi, Giuseppe Malaguti, A. Pe'Er, Stefano Covino, Akira Okumura, Takashi Saito, C. Aramo, Hermine Landt, R. Zanin, E. Fedorova, Shinji Hara, Yutaka Ohira, Petr Janecek, Petar Temnikov, T. B. Humensky, E. Fiandrini, C. Townsley, R. J. White, A. Fiasson, Koji Noda, Takanori Yoshikoshi, Y. Ikeno, Elena Amato, Yasuo Fukui, J. P. Lees, M. Nievas-Rosillo, Vito Conforti, Kazunori Kohri, I. Oya, M. Trifoglio, Gavin Rowell, Jacek Niemiec, Juan Abel Barrio, R. Walter, Stefan Wagner, Teresa Mineo, J. J. Watson, Reiko Orito, Masahiro Teshima, Jim Hinton, A. Pisarski, G. Rodriguez Fernandez, F. De Frondat, Robert Wagner, Pedro L. Luque-Escamilla, G. Morlino, Thomas Lohse, B. Rudak, Olaf Reimer, Josep Martí, Subir Sarkar, Martin White, Johann Cohen-Tanugi, Michiyuki Chikawa, Dusan Mandat, T. Montaruli, M. Mohammed, M. Iori, Oscar Blanch, Giovanni Bonanno, Benjamin Koch, M. A. Lopez, Julien Rousselle, M. Heller, Yusuke Konno, G. Maurin, J. Palacio, S. Gunji, C. Di Giulio, M. Zavrtanik, J.-P. Lenain, Adrian Biland, Michael Backes, Miroslav Filipovic, M. I. Martínez, M. Vazquez Acosta, Nicola Giglietto, J. M. Paredes, G. Fontaine, R. Moderski, A.A. Zdziarski, D. Tescaro, V. Vassiliev, C. van Eldik, H. Siejkowski, Stefan Kimeswenger, Shu Koyama, A. Bonardi, R. Gnatyk, S. Vorobiov, Oleh Petruk, M. Del Santo, Michał Szanecki, C. Delgado, Carole Mundell, Tomasz Szepieniec, Michael G. Burton, Bohdan Hnatyk, M. Capalbi, Kunihito Ioka, Jonathan Granot, Bohdan Novosyadlyj, Petr Schovanek, A. Weinstein, M. Stephan, Vikram V. Dwarkadas, L. Valore, Sabrina Einecke, P. Goldoni, J. Jacquemier, Hiroshi Muraishi, Andreas Quirrenbach, Takeshi Nakamori, Stefan Ohm, G. Busetto, Marcos Santander, A. Wierzcholska, Jaime Rosado, M. Yoshida, M. Huetten, S. Eschbach, Tatsuo Yoshida, Tomasz Bulik, Gino Tosti, Valentina Fioretti, Makoto Sawada, D. Zavrtanik, P. A. Caraveo, Mohamed Rameez, Sylvain Chaty, Nu. Komin, D. Dumas, Michael Zacharias, J. M. Huet, Reshmi Mukherjee, F. Lucarelli, L. Di Venere, Shuta J. Tanaka, F. de Palma, Shiu-Hang Lee, A. W. Chen, A. Giuliani, R. L. C. Starling, V. Beshley, Jonathan S. Lapington, Gilles Ferrand, Giovanni Covone, Rodrigo Nemmen, Tsuyoshi Inoue, R. C. Shellard, P. Cumani, G. Lamanna, Stefan Funk, Michele Doro, Koji Mori, G. Pühlhofer, Hidetoshi Sano, Susumu Inoue, Luis Ángel Tejedor, G. Kukec Mezek, Anderson Caproni, L. Freixas Coromina, M. de Naurois, D. Jankowsky, Yoshiyuki Inoue, Elina Lindfors, Saverio Lombardi, D. della Volpe, Giancarlo Cusumano, Andrea Orlati, S. Mangano, Samar Safi-Harb, Alexandre Marcowith, R. López-Coto, Martin Pohl, J. Lefaucheur, Vincenzo Rizi, Masayuki Tanaka, Shigehiro Nagataki, J. L. Rodriguez, Diego Falceta-Gonçalves, J. E. Ward, Petr Travnicek, I. Sadeh, Dominik Elsässer, P. Wilcox, Tsunefumi Mizuno, Kohta Murase, K. Lalik, M. Ostrowski, Vincenzo Testa, Tsuguya Naito, Matteo Cerruti, N. La Palombara, Yukikatsu Terada, Emmanuel Moulin, A. Balzer, M. Palatka, Samo Stanič, D. D'Urso, Łukasz Stawarz, D. Simone, Giuseppe Romeo, Francesco Giordano, Luca Zampieri, Michiko Ohishi, Giuseppe Leto, J.F. Glicenstein, G. De Cesare, Eleonora Torresi, R. A. Cameron, Katsuaki Asano, Ricardo Graciani, Gernot Maier, Paweł Wójcik, R. A. Ong, Jörg R. Hörandel, Carlo Vigorito, S. P. Wakely, Valerio Vagelli, Andrea Bulgarelli, J. Takeda, S. Brau-Nogué, Garret Cotter, Claudio Melioli, Hiroaki Yamamoto, M. Vrastil, Ryo Yamazaki, G. Maneva, N. Maxted, David A. Williams, K. Kosack, Konrad Bernlöhr, Markus Böttcher, Andreas Zech, Jürgen Knödlseder, Daniel Nieto, Paola Grandi, Maria Concetta Maccarone, Y. Inome, I. Telezhinsky, Fabio Acero, Michael C. B. Ashley, D. A. Sanchez, C. de Lisio, Francisco J. Franco, J. L. Dournaux, M. Kraus, G. Bonnoli, Xian Chen, Massimo Persic, Jonathan Blazek, Giacomo Principe, Louis Antonelli, H. Hakobyan, A. De Angelis, Marek Nikolajuk, F. Schüssler, T. Nagayoshi, P.-O. Petrucci, P. Sangiorgi, N. Sakaki, Anthony M. Brown, S. Tsujimoto, J. J. Rodríguez Vázquez, A. Morselli, B. De Lotto, Juan Carlos Helo, S. Nozaki, M. Takahashi, Lili Yang, H. Schoorlemmer, Catherine Braiding, Justin Vandenbroucke, J. A. Graham, P. Vallania, Stanislav Stefanik, M. Fesquet, Roberto Aloisio, Diego F. Torres, Ciro Bigongiari, C. Díaz, Shohei Yanagita, M. Garczarczyk, Abelardo Moralejo, Hideaki Katagiri, R. de los Reyes Lopez, A. Burtovoi, M. Hussein, Hiroyasu Tajima, M. Prouza, M. Renaud, C. Trichard, M. K. Daniel, Maria Chernyakova, Tarek M. Hassan, A. Ziegler, E. M. de Gouveia Dal Pino, Ll. Font, J. Kocot, Jiri Chudoba, J. P. Amans, Enrico Junior Schioppa, Alessandro Costa, Aya Bamba, A. Förster, F. Arqueros, Jan Ebr, M. Hayashida, A. J. Green, Marc Ribó, Olga Sergijenko, Hidetoshi Kubo, A. Porcelli, Tomohiro Inada, J. Biteau, J. Kushida, Jose Luis Contreras, S. Colafrancesco, Nestor Mirabal, V. Bugaev, R. J. García López, Vitalii Sliusar, I. Jung, Kathrin Egberts, G. Fasola, Maxim V. Barkov, Seiji Masuda, P. Romano, Enrico Cascone, V. I. Zhdanov, Elisa Prandini, Helene Sol, Rodolfo Carosi, S. Vercellone, Manuela Vecchi, German Martinez, A. Gadola, S. Griffiths, Satyendra Thoudam, Département d'Astrophysique (ex SAP) (DAP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Univers et Théories (LUTH (UMR_8102)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7), 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), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPP), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Centre National d'Études Spatiales [Toulouse] (CNES)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CTA Consortium, High Energy Astrophys. & Astropart. Phys (API, FNWI), Acero F., Aloisio R., Amans J., Amato E., Antonelli L. A., Aramo C., Armstrong T., Arqueros F., Asano K., Ashley M., Backes M., Balazs C., Balzer A., Bamba A., Barkov M., Barrio J. A., Benbow W., Bernlöhr K., Beshley V., Bigongiari C., Biland A., Bilinsky A., Bissaldi E., Biteau J., Blanch O., Blasi P., Blazek J., Boisson C., Bonanno G., Bonardi A., Bonavolontà C., Bonnoli G., Braiding C., Brau-Nogué S., Bregeon J., Brown A. M., Bugaev V., Bulgarelli A., Bulik T., Burton M., Burtovoi A., Busetto G., Böttcher M., Cameron R., Capalbi M., Caproni A., Caraveo P., Carosi R., Cascone E., Cerruti M., Chaty S., Chen A., Chen X., Chernyakova M., Chikawa M., Chudoba J., Cohen-Tanugi J., Colafrancesco S., Conforti V., Contreras J. L., Costa A., Cotter G., Covino S., Covone G., Cumani P., Cusumano G., D’Ammando F., D’Urso D., Daniel M., Dazzi F., De Angelis A., De Cesare G., De Franco A., De Frondat F., de Gouveia Dal Pino E. M., De Lisio C., de los Reyes Lopez R., De Lotto B., de Naurois M., De Palma F., Del Santo M., Delgado C., della Volpe D., Di Girolamo T., Di Giulio C., Di Pierro F., Di Venere L., Doro M., Dournaux J., Dumas D., Dwarkadas V., Díaz C., Ebr J., Egberts K., Einecke S., Elsässer D., Eschbach S., Falceta-Goncalves D., Fasola G., Fedorova E., Fernández-Barral A., Ferrand G., Fesquet M., Fiandrini E., Fiasson A., Filipovíc M. D., Fioretti V., Font L., Fontaine G., Franco F. J., Coromina L. Freixa, Fujita Y., Fukui Y., Funk S., Förster A., Gadola A., López R. Garcia, Garczarczyk M., Giglietto N., Giordano F., Giuliani A., Glicenstein J., Gnatyk R., Goldoni P., Grabarczyk T., Graciani R., Graham J., Grandi P., Granot J., Green A. J., Griffiths S., Gunji S., Hakobyan H., Hara S., Hassan T., Hayashida M., Heller M., Helo J. C., Hinton J., Hnatyk B., Huet J., Huetten M., Humensky T. B., Hussein M., Hörandel J., Ikeno Y., Inada T., Inome Y., Inoue S., Inoue T., Inoue Y., Ioka K., Iori M., Jacquemier J., Janecek P., Jankowsky D., Jung I., Kaaret P., Katagiri H., Kimeswenger S., Kimura S., Knödlseder J., Koch B., Kocot J., Kohri K., Komin N., Konno Y., Kosack K., Koyama S., Kraus M., Kubo H., Mezek G. Kukec, Kushida J., Palombara N. La, Lalik K., Lamanna G., Landt H., Lapington J., Laporte P., Lee S., Lees J., Lefaucheur J., Lenain J.-P., Leto G., Lindfors E., Lohse T., Lombardi S., Longo F., Lopez M., Lucarelli F., Luque-Escamilla P. L., López-Coto R., Maccarone M. C., Maier G., Malaguti G., Mandat D., Maneva G., Mangano S., Marcowith A., Martí J., Martínez M., Martínez G., Masuda S., Maurin G., Maxted N., Melioli C., Mineo T., Mirabal N., Mizuno T., Moderski R., Mohammed M., Montaruli T., Moralejo A., Mori K., Morlino G., Morselli A., Moulin E., Mukherjee R., Mundell C., Muraishi H., Murase K., Nagataki S., Nagayoshi T., Naito T., Nakajima D., Nakamori T., Nemmen R., Niemiec J., Nieto D., Nievas-Rosillo M., Nikołajuk M., Nishijima K., Noda K., Nogues L., Nosek D., Novosyadlyj B., Nozaki S., Ohira Y., Ohishi M., Ohm S., Okumura A., Ong R. A., Orito R., Orlati A., Ostrowski M., Oya I., Padovani M., Palacio J., Palatka M., Paredes J. M., Pavy S., Pe’Er A., Persic M., Petrucci P., Petruk O., Pisarski A., Pohl M., Porcelli A., Prandini E., Prast J., Principe G., Prouza M., Pueschel E., Pühlhofer G., Quirrenbach A., Rameez M., Reimer O., Renaud M., Ribó M., Rico J., Rizi V., Rodriguez J., Fernandez G. Rodriguez, Vázquez J. J. Rodríguez, Romano P., Romeo G., Rosado J., Rousselle J., Rowell G., Rudak B., Sadeh I., Safi-Harb S., Saito T., Sakaki N., Sanchez D., Sangiorgi P., Sano H., Santander M., Sarkar S., Sawada M., Schioppa E. J., Schoorlemmer H., Schovanek P., Schussler F., Sergijenko O., Servillat M., Shalchi A., Shellard R. C., Siejkowski H., Sillanpää A., Simone D., Sliusar V., Sol H., Stanič S., Starling R., Stawarz Ł., Stefanik S., Stephan M., Stolarczyk T., Szanecki M., Szepieniec T., Tagliaferri G., Tajima H., Takahashi M., Takeda J., Tanaka M., Tanaka S., Tejedor L. A., Telezhinsky I., Temnikov P., Terada Y., Tescaro D., Teshima M., Testa V., Thoudam S., Tokanai F., Torres D. F., Torresi E., Tosti G., Townsley C., Travnicek P., Trichard C., Trifoglio M., Tsujimoto S., Vagelli V., Vallania P., Valore L., van Driel W., van Eldik C., Vandenbroucke J., Vassiliev V., Vecchi M., Vercellone S., Vergani S., Vigorito C., Vorobiov S., Vrastil M., Acosta M. L. Vázquez, Wagner S. J., Wagner R., Wakely S. P., Walter R., Ward J. E., Watson J. J., Weinstein A., White M., White R., Wierzcholska A., Wilcox P., Williams D. A., Wischnewski R., Wojcik P., Yamamoto T., Yamamoto H., Yamazaki R., Yanagita S., Yang L., Yoshida T., Yoshida M., Yoshiike S., Yoshikoshi T., Zacharias M., Zampieri L., Zanin R., Zavrtanik M., Zavrtanik D., Zdziarski A., Zech A., Zechlin H., Zhdanov V., Ziegler A., Zorn J., Acero, F., Aloisio, R., Amans, J., Amato, E., Antonelli, L. A., Aramo, C., Armstrong, T., Arqueros, F., Asano, K., Ashley, M., Backes, M., Balazs, C., Balzer, A., Bamba, A., Barkov, M., Barrio, J. A., Benbow, W., Bernlöhr, K., Beshley, V., Bigongiari, C., Biland, A., Bilinsky, A., Bissaldi, E., Biteau, J., Blanch, O., Blasi, P., Blazek, J., Boisson, C., Bonanno, G., Bonardi, A., Bonavolontà, C., Bonnoli, G., Braiding, C., Brau Nogué, S., Bregeon, J., Brown, A. M., Bugaev, V., Bulgarelli, A., Bulik, T., Burton, M., Burtovoi, A., Busetto, G., Böttcher, M., Cameron, R., Capalbi, M., Caproni, A., Caraveo, P., Carosi, R., Cascone, E., Cerruti, M., Chaty, S., Chen, A., Chen, X., Chernyakova, M., Chikawa, M., Chudoba, J., Cohen Tanugi, J., Colafrancesco, S., Conforti, V., Contreras, J. L., Costa, A., Cotter, G., Covino, S., Covone, G., Cumani, P., Cusumano, G., D’Ammando, F., D’Urso, D., Daniel, M., Dazzi, F., De Angelis, A., De Cesare, G., De Franco, A., De Frondat, F., de Gouveia Dal Pino, E. M., De Lisio, C., de los Reyes Lopez, R., De Lotto, B., de Naurois, M., De Palma, F., Del Santo, M., Delgado, C., della Volpe, D., Di Girolamo, T., Di Giulio, C., Di Pierro, F., Di Venere, L., Doro, M., Dournaux, J., Dumas, D., Dwarkadas, V., Díaz, C., Ebr, J., Egberts, K., Einecke, S., Elsässer, D., Eschbach, S., Falceta Goncalves, D., Fasola, G., Fedorova, E., Fernández Barral, A., Ferrand, G., Fesquet, M., Fiandrini, E., Fiasson, A., Filipovíc, M. D., Fioretti, V., Font, L., Fontaine, G., Franco, F. J., Coromina, L. Freixa, Fujita, Y., Fukui, Y., Funk, S., Förster, A., Gadola, A., López, R. Garcia, Garczarczyk, M., Giglietto, N., Giordano, F., Giuliani, A., Glicenstein, J., Gnatyk, R., Goldoni, P., Grabarczyk, T., Graciani, R., Graham, J., Grandi, P., Granot, J., Green, A. J., Griffiths, S., Gunji, S., Hakobyan, H., Hara, S., Hassan, T., Hayashida, M., Heller, M., Helo, J. C., Hinton, J., Hnatyk, B., Huet, J., Huetten, M., Humensky, T. B., Hussein, M., Hörandel, J., Ikeno, Y., Inada, T., Inome, Y., Inoue, S., Inoue, T., Inoue, Y., Ioka, K., Iori, M., Jacquemier, J., Janecek, P., Jankowsky, D., Jung, I., Kaaret, P., Katagiri, H., Kimeswenger, S., Kimura, S., Knödlseder, J., Koch, B., Kocot, J., Kohri, K., Komin, N., Konno, Y., Kosack, K., Koyama, S., Kraus, M., Kubo, H., Mezek, G. Kukec, Kushida, J., Palombara, N. La, Lalik, K., Lamanna, G., Landt, H., Lapington, J., Laporte, P., Lee, S., Lees, J., Lefaucheur, J., Lenain, J. P., Leto, G., Lindfors, E., Lohse, T., Lombardi, S., Longo, Francesco, Lopez, M., Lucarelli, F., Luque Escamilla, P. L., López Coto, R., Maccarone, M. C., Maier, G., Malaguti, G., Mandat, D., Maneva, G., Mangano, S., Marcowith, A., Martí, J., Martínez, M., Martínez, G., Masuda, S., Maurin, G., Maxted, N., Melioli, C., Mineo, T., Mirabal, N., Mizuno, T., Moderski, R., Mohammed, M., Montaruli, T., Moralejo, A., Mori, K., Morlino, G., Morselli, A., Moulin, E., Mukherjee, R., Mundell, C., Muraishi, H., Murase, K., Nagataki, S., Nagayoshi, T., Naito, T., Nakajima, D., Nakamori, T., Nemmen, R., Niemiec, J., Nieto, D., Nievas Rosillo, M., Nikołajuk, M., Nishijima, K., Noda, K., Nogues, L., Nosek, D., Novosyadlyj, B., Nozaki, S., Ohira, Y., Ohishi, M., Ohm, S., Okumura, A., Ong, R. A., Orito, R., Orlati, A., Ostrowski, M., Oya, I., Padovani, M., Palacio, J., Palatka, M., Paredes, J. M., Pavy, S., Pe’Er, A., Persic, M., Petrucci, P., Petruk, O., Pisarski, A., Pohl, M., Porcelli, A., Prandini, E., Prast, J., Principe, G., Prouza, M., Pueschel, E., Pühlhofer, G., Quirrenbach, A., Rameez, M., Reimer, O., Renaud, M., Ribó, M., Rico, J., Rizi, V., Rodriguez, J., Fernandez, G. Rodriguez, Vázquez, J. J. Rodríguez, Romano, P., Romeo, G., Rosado, J., Rousselle, J., Rowell, G., Rudak, B., Sadeh, I., Safi Harb, S., Saito, T., Sakaki, N., Sanchez, D., Sangiorgi, P., Sano, H., Santander, M., Sarkar, S., Sawada, M., Schioppa, E. J., Schoorlemmer, H., Schovanek, P., Schussler, F., Sergijenko, O., Servillat, M., Shalchi, A., Shellard, R. C., Siejkowski, H., Sillanpää, A., Simone, D., Sliusar, V., Sol, H., Stanič, S., Starling, R., Stawarz, Ł., Stefanik, S., Stephan, M., Stolarczyk, T., Szanecki, M., Szepieniec, T., Tagliaferri, G., Tajima, H., Takahashi, M., Takeda, J., Tanaka, M., Tanaka, S., Tejedor, L. A., Telezhinsky, I., Temnikov, P., Terada, Y., Tescaro, D., Teshima, M., Testa, V., Thoudam, S., Tokanai, F., Torres, D. F., Torresi, E., Tosti, G., Townsley, C., Travnicek, P., Trichard, C., Trifoglio, M., Tsujimoto, S., Vagelli, V., Vallania, P., Valore, L., van Driel, W., van Eldik, C., Vandenbroucke, J., Vassiliev, V., Vecchi, M., Vercellone, S., Vergani, S., Vigorito, C., Vorobiov, S., Vrastil, M., Acosta, M. L. Vázquez, Wagner, S. J., Wagner, R., Wakely, S. P., Walter, R., Ward, J. E., Watson, J. J., Weinstein, A., White, M., White, R., Wierzcholska, A., Wilcox, P., Williams, D. A., Wischnewski, R., Wojcik, P., Yamamoto, T., Yamamoto, H., Yamazaki, R., Yanagita, S., Yang, L., Yoshida, T., Yoshida, M., Yoshiike, S., Yoshikoshi, T., Zacharias, M., Zampieri, L., Zanin, R., Zavrtanik, M., Zavrtanik, D., Zdziarski, A., Zech, A., Zechlin, H., Zhdanov, V., Ziegler, A., Zorn, J., Acero et al, F., PSL Research University (PSL)-PSL Research University (PSL)-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 Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-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)-Aix Marseille Université (AMU), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Acero, F, Aloisio, R, Amans, J, De Lisio, C, Di Girolamo, T, Valore, L, Covone, G, and Al., Et
Subjects: electron, Supernova Remnants, PARTICLE-ACCELERATION, Cherenkov Telescope Array, Astronomy, leptonic, Telescope Array Experiment, pi, Astrophysics, 01 natural sciences, Supernova Remnant, LARGE-AREA TELESCOPE, Spectral line, spectrum, ISM: individual objects, HESS, Supernova remnant, 010303 astronomy & astrophysics, cosmic ray, Physics, cosmic rays gamma rays: ISM ISM: individual objects (RX J1713.7-3946, G347.3-0.5), spatial distribution, Gamma Ray, Cherenkov radiation, MAGNETIC-FIELD, Gamma ray, COSMIC-RAYS, ISM: individual objects (RX J1713.7–3946, G347.3–0.5), Supernova, cosmic rays, gamma rays: ISM, ISM: individual objects (RX J1713.7-3946, G347.3-0.5), Astronomy and Astrophysics, Space and Planetary Science, gamma ray: emission, G347.3–0.5, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, DIFFUSIVE SHOCK ACCELERATION, Electrónica, Física nuclear, Electricidad, individual objects: RX J1713.7–3946 [ISM], Compton scattering, Gamma Rays, G347.3-0.5), NONTHERMAL, accelerator, X-RAYS, Astrophysics::High Energy Astrophysical Phenomena, INSTABILITY, Cosmic ray, hadronic, GLAST, ISM: individual objects (RX J1713.7-3946, ISM [gamma rays], gas, 0103 physical sciences, supernova, ddc:530, X-ray: emission, GAMMA-RAY EMISSION, AMPLIFICATION, BROAD-BAND EMISSION, MOLECULAR CLOUDS, STREAMING, Astrophysics::Galaxy Astrophysics, Astroparticle physics, 010308 nuclear & particles physics, p: relativistic, Institut für Physik und Astronomie, ASTROFÍSICA, gamma ray: VHE, ddc:520, time dependence, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], RAIOS CÓSMICOS
Abstract: 著者人数: 382名 (JAXA職員: 井上, 芳幸 : 小山, 志勇 : Lee, Shiu-Hang), Accepted: 2017-04-12, 資料番号: SA1170071000
Published: 2017

36. The Fermi GBM and LAT follow-up of GW150914

Author: Eric Burns, Nicola Omodei, Adam Goldstein, Valerie Connaughton, Elisabetta Bissaldi, and Giacomo Vianello
Subjects: Physics, Gravitational wave, media_common.quotation_subject, QC1-999, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Astrophysics, 01 natural sciences, LIGO, law.invention, Gravitation, Telescope, Physics and Astronomy (all), Spitzer Space Telescope, Sky, law, 0103 physical sciences, 010306 general physics, Gamma-ray burst, 010303 astronomy & astrophysics, media_common, Fermi Gamma-ray Space Telescope
Abstract: As the first detection of Gravitation Wave (GW) event arising from the coalescence of two stellar-mass Black Holes (BH) was announced by LIGO, a new era for astronomy began. Searches for electromagnetic (EM) counterparts of GW events is of fundamental importance, as they increase the confidence in the GW detection and help characterize the parameters of the merger. The Fermi gamma-ray space telescope has the best sensitivity to simultaneously observe a large fraction of the sky from 10 keV to more than 300 GeV, providing the unique capability of rapidly covering the entire probability region from a LIGO candidate.Here we present observations by the Fermi Gamma-Ray BurstMonitor (GBM) [1] and by the Large Area Telescope (LAT) [2] of the LIGO Gravitational Wave event GW150914, which has been associated to the merger of two stellar-mass BHs. We report the presence of a weak transient event in GBM data, close in time to the LIGO one. We discuss the characteristics of this GBM transient, which are consistent with a weak short GRB arriving at a large angle to the direction in which Fermi was pointing. Furthermore, we report LAT upper limits (ULs) for GW150914, and we present the strategy for follow-up observations of GW events with the LAT.
Published: 2017

37. Towards the development of a SiPM-based camera for the Cherenkov Telescope Array

Author: E. Fiandrini, Maria Ionica, Nicola Giglietto, Valerio Vagelli, D. Simone, G. Ambrosi, L. Di Venere, Riccardo Paoletti, Francesco Giordano, and Elisabetta Bissaldi
Subjects: Physics, Micro cell, Light detection, 010308 nuclear & particles physics, business.industry, QC1-999, Detector, Cherenkov Telescope Array, 01 natural sciences, law.invention, Telescope, Physics and Astronomy (all), Cardinal point, Silicon photomultiplier, Optics, law, 0103 physical sciences, 010306 general physics, business, Cherenkov radiation
Abstract: The Italian National Institute for Nuclear Physics (INFN) is involved in the development of a prototype for a camera based on Silicon Photomultipliers (SiPMs) for the Cherenkov Telescope Array (CTA), a new generation of telescopes for ground-based gamma-ray astronomy. In this framework, an R&D program within the ‘Progetto Premiale TElescopi CHErenkov made in Italy (TECHE.it)’ for the development of SiPMs suitable for Cherenkov light detection in the Near-Ultraviolet (NUV) has been carried out. The developed device is a NUV High-Density (NUV-HD) SiPM based on a micro cell of 30 μ m × 30 μ m and an area of 6 mm × 6 mm, produced by Fondazione Bruno Kessler (FBK). A full characterization of the single NUV-HD SiPM will be presented. A matrix of 8 × 8 single NUV-HD SiPMs will be part of the focal plane of the Schwarzschild- Couder Telescope prototype (pSCT) for CTA. An update on recent tests on the detectors arranged in this matrix configuration and on the front-end electronics will be given.
Published: 2017

38. Development of a Charge Preamplifier to Improve NUV-HD SiPM Performances

Author: A. Boiano, Maria Ionica, M. Ambrosio, V. Masone, C. Bonavolontà, E. Fiandrini, M. Valentino, V. Vagelli, D. Simone, L. Di Venere, V. Postolache, C. de Lisio, Nicola Giglietto, G. Ambrosi, Riccardo Paoletti, Elisabetta Bissaldi, Carla Aramo, Francesco Giordano, Ambrosi, G., Ambrosio, Michelangelo, Aramo, Carla, Bissaldi, E., Boiano, Alfonso, Bonavolonta', Carmela, DE LISIO, Corrado, Di Venere, L., Fiandrini, E., Giglietto, N., Giordano, F., Ionica, M., Masone, V., Paoletti, R., Postolache, V., Simone, D., Vagelli, V., and Valentino, Massimo
Subjects: Particle physics, Nuclear and High Energy Physics, Photon, Cherenkov Telescope Array, Channel (digital image), Preamplifier, Silicon photomultiplier, electronic charge preamplifier, 01 natural sciences, law.invention, Telescope, Optics, Observatory, law, 0103 physical sciences, Electronic engineering, 010306 general physics, Physics, 010308 nuclear & particles physics, business.industry, Gamma ray, Silicon photomultiplier, Cherenkov Telescope Array, electronic charge preamplifier, business
Abstract: The development of a new camera based on the use of Silicon Photomultipliers (SiPM) proposed for the Cherenkov Telescope Array (CTA), which represents a new generation of ground based very high energy gamma ray observatory, is one of the main items of the Italian Institute of Nuclear Physics (INFN). In the R&D framework a single channel electronic charge preamplifier has been developed to improve the performance of photon cameras equipped with High Density NUV – HD SiPM produced by Fondazione Bruno Kessler (FBK) with a micro cell of 30 μm x 30 μm and 6 mm x 6 mm total area. The single channel preamplifier will be used as basic component for a 16-channel electronic board prototype to test the 8 x 8 NUV – HD SiPM modules proposed to equip a pSCT (Schwarzschild-Couder Telescope prototype) camera. In this work the results of tests on the single channel preamplifier prototype to optimize the SiPM performances will be presented.
Published: 2017

39. An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A

Author: Melissa Gibby, Judith Racusin, A. von Kienlin, T. Dal Canton, Michael S. Briggs, R. M. Kippen, Dale D. Kocevski, Eric Burns, Adam Goldstein, Rachel Hamburg, K. Siellez, W. H. Cleveland, C. M. Hui, Colleen A. Wilson-Hodge, William S. Paciesas, Tyson Littenberg, Valerie Connaughton, Oliver J. Roberts, Nelson Christensen, Sheila McBreen, S. Poolakkil, Elisabetta Bissaldi, Charles A. Meegan, J. McEnery, Misty Giles, Lindy Blackburn, Péter Veres, J. E. Broida, M. Stanbro, Robert D. Preece, Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux (ARTEMIS), Université Nice Sophia Antipolis (... - 2019) (UNS), Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, Université Côte d'Azur (UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Relativiste Théories Expériences Métrologie Instrumentation Signaux ( ARTEMIS ), Université Nice Sophia Antipolis ( UNS ), Université Côte d'Azur ( UCA ) -Université Côte d'Azur ( UCA ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de la Côte d'Azur, and Université Côte d'Azur ( UCA ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: long-lived, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], energy resolution, Astrophysics, Kilonova, power spectrum, 01 natural sciences, localization, Observatory, gamma-ray burst: individual, optical, LIGO, 010303 astronomy & astrophysics, sodium, Gamma-ray burst: individual (170817A), Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::Instrumentation and Methods for Astrophysics, Poisson, charged particle, black body, Astrophysics - High Energy Astrophysical Phenomena, upper limit, noise, radiation: electromagnetic, Astrophysics::High Energy Astrophysical Phenomena, background: model, FOS: Physical sciences, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, gamma ray: burst, Electromagnetic radiation, Bayesian, programming, GLAST, X-ray, thallium, 0103 physical sciences, 010308 nuclear & particles physics, Gravitational wave, gravitational radiation, Astronomy and Astrophysics, trigger, binary: compact, VIRGO, Space and Planetary Science, correlation, Gamma-ray burst, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Fermi Gamma-ray Space Telescope
Abstract: On August 17, 2017 at 12:41:06 UTC the Fermi Gamma-ray Burst Monitor (GBM) detected and triggered on the short gamma-ray burst GRB 170817A. Approximately 1.7 s prior to this GRB, the Laser Interferometer Gravitational-Wave Observatory (LIGO) triggered on a binary compact merger candidate associated with the GRB. This is the first unambiguous coincident observation of gravitational waves and electromagnetic radiation from a single astrophysical source and marks the start of gravitational-wave multi-messenger astronomy. We report the GBM observations and analysis of this ordinary short GRB, which extraordinarily confirms that at least some short GRBs are produced by binary compact mergers., Comment: Published in Astrophysical Journal Letters
Published: 2017
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40. Observations of M31 and M33 with the Fermi Large Area Telescope: A Galactic Center Excess in Andromeda?

Author: Jiancheng Wang, Diego F. Torres, Marco Ajello, S. Cutini, Jürgen Knödlseder, L. Latronico, F. Loparco, Ronaldo Bellazzini, R. A. Cameron, S. Rainò, J. F. Ormes, I. A. Grenier, E. Cavazzuti, David H. Green, Gloria Spandre, Jingcheng Li, G. Barbiellini, Andrea Albert, P. Spinelli, R. Buehler, P. Bruel, G. La Mura, Eric Charles, Xian Hou, Nicola Omodei, Kazuhiko Hayashi, Peter F. Michelson, Marcello Giroletti, M. N. Mazziotta, N. Di Lalla, Luca Baldini, Francesco Longo, Jean Ballet, M. Caragiulo, F. Gargano, Giacomo Principe, Claudia Cecchi, D. Malyshev, Sylvain Guiriec, Carmelo Sgrò, Riccardo Rando, Frederic Piron, E. J. Siskind, D. Simone, David Paneque, P. Martin, E. Orlando, M. Razzano, R. Bonino, Filippo D'Ammando, Johan Bregeon, K. Tanaka, A. Chekhtman, C. Favuzzi, Yasunobu Uchiyama, Nestor Mirabal, Elliott D. Bloom, P. Fusco, Matthew Wood, Warit Mitthumsiri, M. Kuss, M. Di Mauro, Matteo Negro, A. Morselli, Francesco Giordano, Stefan Funk, P. Lubrano, F. Spada, R. Caputo, Igor V. Moskalenko, Stefan Larsson, Gabrijela Zaharijas, Olaf Reimer, Melissa Pesce-Rollins, Tsunefumi Mizuno, S. W. Digel, G. Chiaro, R. Desiante, Ming Zhou, Miguel A. Sánchez-Conde, K. S. Wood, T. Ohsugi, Eleonora Troja, T. J. Brandt, L. Di Venere, E. Nuss, Gudlaugur Johannesson, M. E. Monzani, Lucas Guillemot, M. Ackermann, S. Maldera, F. Costanza, T. Kamae, L. Tibaldo, Nicola Giglietto, Elisabetta Bissaldi, Massimo Persic, P. A. Caraveo, T. Glanzman, Denis Bastieri, S. Ciprini, F. de Palma, Eugenio Bottacini, Alberto Manfreda, Albert K. H. Kong, T. A. Porter, Ackermann, M., Ajello, M., Albert, A., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Bloom, E. D., Bonino, R., Bottacini, E., Brandt, T. J., Bregeon, J., Bruel, P., Buehler, R., Cameron, R. A., Caputo, R., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Chiaro, G., Ciprini, S., Costanza, F., Cutini, S., D'Ammando, F., De Palma, F., Desiante, R., Digel, S. W., Di Lalla, N., Di Mauro, M., Di Venere, L., Favuzzi, C., Funk, S., Fusco, P., Gargano, F., Giglietto, N., Giordano, F., Giroletti, M., Glanzman, T., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Hayashi, K., Hou, X., Jóhannesson, G., Kamae, T., Knödlseder, J., Kong, A. K. H., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, Francesco, Loparco, F., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Martin, P., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Orlando, E., Ormes, J. F., Paneque, D., Persic, M., Pesce Rollins, M., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Reimer, O., Sánchez Conde, M., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Tanaka, K., Tibaldo, L., Torres, D. F., Troja, E., Uchiyama, Y., Wang, J. C., Wood, K. S., Wood, M., Zaharijas, G., Zhou, M., Deutsches Elektronen-Synchrotron [Hamburg] (DESY), Department of Physics and Astronomy [Clemson], Clemson University, Los Alamos National Laboratory (LANL), Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Istituto Nazionale di Fisica Nucleare, Sezione di Trieste (INFN, Sezione di Trieste), Istituto Nazionale di Fisica Nucleare, Sezione di Padova (INFN, Sezione di Padova), Istituto Nazionale di Fisica Nucleare, sezione di Bari (INFN, sezione di Bari), Kavli Institute for Particle Astrophysics and Cosmology (KIPAC), Stanford University, Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Istituto Nazionale di Fisica Nucleare, Sezione di Torino (INFN, Sezione di Torino), NASA Goddard Space Flight Center (GSFC), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Deutsches Elektronen-Synchrotron [Zeuthen] (DESY), Helmholtz-Gemeinschaft = Helmholtz Association, Santa Cruz Institute for Particle Physics (SCIPP), University of California [Santa Cruz] (UCSC), University of California-University of California, Istituto di Astrofisica Spaziale e Fisica Cosmica - Milano (IASF-MI), Istituto Nazionale di Astrofisica (INAF), Agenzia Spaziale Italiana (ASI) Science Data Center, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia (INFN, Sezione di Perugia), George Mason University [Fairfax], Universita degli Studi di Padova, Istituto di Radioastronomia [Bologna] (IRA), Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Unité Scientifique de la Station de Nançay (USN), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO), Department of Astrophysics [Nagoya], Nagoya University, Yunnan Observatories, Chinese Academy of Sciences, Science Institute, University of Iceland, University of Iceland [Reykjavik], Tokyo University of Science [Tokyo], Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), National Tsing Hua University [Hsinchu] (NTHU), DIEE, University of Cagliari, Royal Institute of Technology [Stockholm] (KTH ), Institut d'Estudis Espacials de Catalunya (IEEC-CSIC), Mahidol University [Bangkok], Hiroshima University, Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tor Vergata (INFN, Sezione di Roma Tor Vergata), Department of Physics and Astronomy [Denver], University of Denver, Max-Planck-Institut für Physik (Werner-Heisenberg-Institut) (MPI-P), INAF - Osservatorio Astronomico di Trieste (OAT), Istituto Nazionale di Fisica Nucleare, Sezione di Pisa, Leopold-Franzens Universitat Innsbruck, Stockholm University, NYCB Real-Time Computing Inc., Lattingtown, NYCB Real-Time Computing Inc. [Lattingtown], Max-Planck-Institut für Kernphysik (MPIK), Max-Planck-Gesellschaft, Institut de Ciencies de l'Espai [Barcelona] (ICE-CSIC), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC), Rikkyo University [Tokyo], Università degli Studi di Udine - University of Udine [Italie], ITA, Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), University of California [Santa Cruz] (UC Santa Cruz), University of California (UC)-University of California (UC), Università degli Studi di Padova = University of Padua (Unipd), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Universität Innsbruck [Innsbruck], Ackermann M, Ajello M, Albert A, Baldini L, Ballet J, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, Bloom E D, Bonino R, Bottacini E, Brandt T J, Bregeon J, Bruel P, Buehler R, Cameron R A, Caputo R, Caragiulo M, Caraveo P A, Cavazzuti E, Cecchi C, Charles E, Chekhtman A, Chiaro G, Ciprini S, Costanza F, Cutini S, DAmmando F, de Palma F, Desiante R, Digel S W, Di Lalla N, Di Mauro M, Di Venere L, Favuzzi C, Funk S, Fusco P, Gargano F, Giglietto N, Giordano F, Giroletti M, Glanzman T, Green D, Grenier I A, Guillemot L, Guiriec S, Hayashi K, Hou X, Jóhannesson G, Kamae T, Knödlseder J, Kong A K H, Kuss M, La Mura G, Larsson S, Latronico L, Li J, Longo F, Loparco F, Lubrano P, Maldera S, Malyshev D, Manfreda A, Martin P, Mazziotta M N, Michelson P F, Mirabal N, Mitthumsiri W, Mizuno T, Monzani M E, Morselli A, Moskalenko I V, Negro M, Nuss E, Ohsugi T, Omodei N, Orlando E, Ormes J F, Paneque D, Persic M, Pesce-Rollins M, Piron F, Porter T A, Principe G, Rainò S, Rando R, Razzano M, Reimer O, Sánchez-Conde M, Sgrò C, Simone D, Siskind E J, Spada F, Spandre G, Spinelli P, Tanaka K, Tibaldo L, Torres D F, Troja E, Uchiyama Y, Wang J C, Wood K S, Wood M, Zaharijas G, Zhou M, National Institute for Nuclear Physics (INFN), Stanford University [Stanford], Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Helmholtz-Gemeinschaft, Istituto di Radioastronomia INAF, Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Department of Astrophysics, Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), and Consejo Superior de Investigaciones Científicas [Spain] (CSIC)
Subjects: Andromeda Galaxy, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], cosmic rays, gamma rays: galaxies, Local Group, Astronomy and Astrophysics, Space and Planetary Science, Milky Way, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, 0103 physical sciences, Galaxy formation and evolution, galaxie [gamma rays], Interacting galaxy, 10. No inequality, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, cosmic ray, Physics, 010308 nuclear & particles physics, Astronomy, Astronomy and Astrophysic, Galaxy, Dwarf spheroidal galaxy, cosmic rays – gamma rays: galaxies – Local Group, Globular cluster, Elliptical galaxy, ddc:520, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Fermi LAT has opened the way for comparative studies of cosmic rays (CRs) and high-energy objects in the Milky Way (MW) and in other, external, star-forming galaxies. Using 2 yr of observations with the Fermi LAT, local Group galaxy M31 was detected as a marginally extended gamma-ray source, while only an upper limit (UL) has been derived for the other nearby galaxy M33. We revisited the gamma-ray emission in the direction of M31 and M33 using more than 7 yr of LAT Pass 8 data in the energy range 0.1-100 GeV, presenting detailed morphological and spectral analyses. M33 remains undetected and we computed an UL for it. This revised UL remains consistent with the observed correlation between gamma-ray luminosity and star-formation rate tracers and implies an average CR density in M33 that is at most half of that of the MW. M31 is detected with a significance of nearly 10 sigma and to be extended with 4 sigma. Its spectrum is consistent with a power law. The spatial distribution of the emission is consistent with a uniform disk with a radius of 0.4 deg and no offset from the center of M31, but nonuniform intensity distributions cannot be excluded. The flux from M31 appears confined to the inner regions of the galaxy and does not fill the disk or extend far from it. The gamma-ray signal is not correlated with regions rich in gas or star-formation activity suggesting that the emission is not interstellar in origin, unless the energetic particles radiating in gamma rays do not originate in recent star formation. Alternative and nonexclusive interpretations are that the emission results from a population of millisecond pulsars dispersed in the bulge and disk of M31 by disrupted globular clusters or from the decay or annihilation of dark matter particles, similar to what has been proposed to account for the so-called Galactic Center excess found in Fermi-LAT observations of the MW., Comment: 14 pages, 7 figures, 4 tables
Published: 2017

41. The H.E.S.S. II GRB observation scheme

Author: Clemens Hoischen, R. D. Parsons, Markus Holler, S. J. Wagner, A. Balzer, Gavin Rowell, M. Füssling, T. Garrigoux, Alison Mitchell, Pak-Hin Thomas Tam, Elisabetta Bissaldi, F. Schüssler, P. T. O'Brien, G. Pühlhofer, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), H.E.S.S., and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Photon statistics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astronomy, Astrophysics, 01 natural sciences, law.invention, Telescope, Physics and Astronomy (all), law, 0103 physical sciences, Gamma-ray burst, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], 010303 astronomy & astrophysics, Energy (signal processing)
Abstract: International audience; Gamma-ray bursts (GRBs) are some of the Universe’s most enigmatic and exotic events. However, at energies above 10 GeV their behaviour remains largely unknown. Although space based telescopes such as the Fermi-LAT have been able to detect GRBs in this energy range, their photon statistics are limited by the small detector size. Such limitations are not present in ground based gamma-ray telescopes such as the H.E.S.S. experiment, which has now entered its second phase with the addition of a large 600 m2 telescope to the centre of the array. Such a large telescope allows H.E.S.S. to access the sub 100-GeV energy range while still maintaining a large effective collection area, helping to potentially probe the short timescale emission of these events.We present a description of the H.E.S.S. GRB observation programme, summarising the performance of the rapid GRB repointing system and the conditions under which GRB observations are initiated. Additionally we will report on the GRB follow-ups made during the 2014-15 observation campaigns.
Published: 2017

42. Search for Extended Sources in the Galactic Plane Using Six Years of Fermi-Large Area Telescope Pass 8 Data above 10 GeV

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

43. Gamma-Ray Blazars within the First 2 Billion Years

Author: E. Nuss, I. A. Grenier, E. Cavazzuti, David H. Green, Gloria Spandre, L. Di Venere, Roopesh Ojha, R. A. Cameron, P. Spinelli, Igor V. Moskalenko, Carmelo Sgrò, Riccardo Rando, R. Buehler, Olaf Reimer, D. Horan, D. Simone, David Paneque, Vaidehi S. Paliya, Peter F. Michelson, Marcello Giroletti, Elliott D. Bloom, K. Tanaka, L. Marcotulli, M. Caragiulo, T. Jogler, G. Barbiellini, Gudlaugur Johannesson, M. N. Mazziotta, W. B. Focke, Frederic Piron, M. Razzano, Roger W. Romani, Filippo D'Ammando, P. Bruel, E. Orlando, P. Fusco, G. La Mura, D. J. Thompson, Marco Ajello, J. B. Thayer, J. F. Ormes, Dario Gasparrini, S. Rainò, E. Hays, Francesco Giordano, W. Mitthumsiri, Jan Conrad, Lukasz Stawarz, Diego F. Torres, Giacomo Principe, G. Tosti, F. Spada, Giacomo Vianello, Stefan Larsson, C. C. Cheung, Monica Orienti, Stefan Funk, S. J. Fegan, C. S. Stalin, C. Favuzzi, K. S. Wood, Melissa Pesce-Rollins, Dieter H. Hartmann, Francesco Longo, Bindu Rani, R. Bonino, Nestor Mirabal, Ronaldo Bellazzini, Jingcheng Li, Massimo Persic, M. Ackermann, N. Di Lalla, Luca Baldini, A. Reimer, J. D. Magill, M. Kuss, M. Di Mauro, M. Takahashi, Sylvain Guiriec, M. E. Monzani, S. Maldera, D. Costantin, F. Costanza, T. Ohsugi, Eleonora Troja, Tsunefumi Mizuno, Denis Bastieri, Eleonora Torresi, G. Chiaro, F. de Palma, Yasushi Fukazawa, J. S. Perkins, Nicola Giglietto, M. N. Lovellette, P. A. Caraveo, Persis S. Drell, Aaron Dominguez, Soebur Razzaque, S. Ciprini, James Chiang, Justin D. Finke, L. Latronico, L. Guillemot, Eugenio Bottacini, Alberto Manfreda, Roger Blandford, J. Becerra González, J. Ballet, Elisabetta Bissaldi, A. S. Johnson, F. Gargano, Sara Buson, T. A. Porter, E. J. Siskind, S. Cutini, F. Loparco, Elizabeth C. Ferrara, Nicola Omodei, P. Lubrano, Matteo Negro, A. Morselli, J. Bregeon, D. J. Suson, S. W. Digel, R. Desiante, Claudia Cecchi, Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Laboratoire Univers et Particules de Montpellier ( LUPM ), Centre National de la Recherche Scientifique ( CNRS ) -Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ), Laboratoire Leprince-Ringuet ( LLR ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -École polytechnique ( X ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Centre National de la Recherche Scientifique ( CNRS ) -Université d'Orléans ( UO ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Unité Scientifique de la Station de Nançay ( USN ), Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS ), Fermi-LAT, Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Ackermann, M., Ajello, M., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Gonzalez, J. Becerra, Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Cheung, C. C., Chiang, J., Chiaro, G., Ciprini, S., Conrad, J., Costantin, D., Costanza, F., Cutini, S., D'Ammando, F., Palma, F. De, Desiante, R., Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Domínguez, A., Drell, P. S., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Finke, J., Focke, W. B., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guillemot, L., Guiriec, S., Hartmann, D. H., Hays, E., Horan, D., Jogler, T., Jóhannesson, G., Johnson, A. S., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Marcotulli, L., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Ojha, R., Omodei, N., Orienti, M., Orlando, E., Ormes, J. F., Paliya, V. S., Paneque, D., Perkins, J. S., Persic, M., Pesce Rollins, M., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Rani, B., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Romani, R. W., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Stalin, C. S., Stawarz, L., Suson, D. J., Takahashi, M., Tanaka, K., Thayer, J. B., Thompson, D. J., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Vianello, G., Wood, K. S., ITA, Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), and PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris
Subjects: Active galactic nucleus, 010504 meteorology & atmospheric sciences, Radio galaxy, galaxies: active, galaxies: high-redshift, galaxies: jets, gamma rays: galaxies, quasars: general, Astronomy and Astrophysics, Space and Planetary Science, Astrophysics::High Energy Astrophysical Phenomena, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Population, jets [galaxies], Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Luminosity, Astrophysical jet, 0103 physical sciences, galaxie [gamma rays], Blazar, education, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, 0105 earth and related environmental sciences, Physics, education.field_of_study, general [quasars], Astronomy, Quasar, Astronomy and Astrophysic, Black hole, jet [galaxies], [SDU]Sciences of the Universe [physics], galaxies [gamma rays], active [galaxies], ddc:520, Astrophysics - High Energy Astrophysical Phenomena, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], high-redshift [galaxies]
Abstract: The astrophysical journal 837(1), L5 (2017). doi:10.3847/2041-8213/aa5fff, The detection of high-redshift ($z\,\gt 3$) blazars enables the study of the evolution of the most luminous relativistic jets over cosmic time. More importantly, high-redshift blazars tend to host massive black holes and can be used to constrain the space density of heavy black holes in the early universe. Here, we report the first detection with the Fermi-Large Area Telescope of five γ-ray-emitting blazars beyond z = 3.1, more distant than any blazars previously detected in γ-rays. Among these five objects, NVSS J151002+570243 is now the most distant known γ-ray-emitting blazar at z = 4.31. These objects have steeply falling γ-ray spectral energy distributions (SEDs), and those that have been observed in X-rays have a very hard X-ray spectrum, both typical of powerful blazars. Their Compton dominance (ratio of the inverse Compton to synchrotron peak luminosities) is also very large ($\gt 20$). All of these properties place these objects among the most extreme members of the blazar population. Their optical spectra and the modeling of their optical-UV SEDs confirm that these objects harbor massive black holes (${M}_{\mathrm{BH}}\sim {10}^{8-10}\,{M}_{\odot }$). We find that, at $z\approx 4$, the space density of $\gt {10}^{9}\,{M}_{\odot }$ black holes hosted in radio-loud and radio-quiet active galactic nuclei are similar, implying that radio-loudness may play a key role in rapid black hole growth in the early universe., Published by Univ., Chicago, Ill. [u.a.]
Published: 2017

44. An upgrade of the camera focal plane of a SchwarzschildCouder Telescope prototype (pSCT) for the Cherenkov Telescope Array (CTA)

Author: V. Vagelli, M. Ambrosio, Nicola Giglietto, V. Masone, C. Bonavolont, M. Valentino, Elisabetta Bissaldi, C. de Lisio, A. Aramo, D. Simone, G. Ambrosi, E. Fiandrini, Francesco Giordano, Riccardo Paoletti, A. Boiano, Maria Ionica, V. Postolache, L. Di Venere, Ambrosi, G., Ambrosio, M., Aramo, A., Bissaldi, E., Boiano, A., Bonavolontà, C., Fiandrini, E., Giglietto, N., Giordano, F., Ionica, M., de Lisio, C., Di Venere, L., Masone, V., Paoletti, R., Postolache, V., Simone, D., Vagelli, V., and Valentino, M.
Subjects: Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Preamplifier, business.industry, Astronomy, Cherenkov Telescope Array, 01 natural sciences, law.invention, Telescope, Silicon photomultiplier, Optics, Cardinal point, Upgrade, Observatory, law, 0103 physical sciences, telescope, Cherenkov, camera, 010306 general physics, business, Cherenkov radiation
Abstract: The Cherenkov Telescope Array (CTA) will be the next generation of ground-based observatory of very high energy gamma ray sources. The Italian Institute of Nuclear Physics (INFN) is involved in the R&D effort for the development of a possible solution for one of the Cherenkov photon camera designs, working on replacing the Hamamatsu MPPC S12642-0404PA-50 with more UV sensitive ones from Fondazione Bruno Kessler (FBK). INFN is currently developing the preamplifiers and the carrier boards for the SiPM chips that interface with the mechanics of the camera. To test the feasibility and the performance of SiPM cameras, a focal plane camera prototype module, upgraded with High Density NUV - SiPMs, produced by FBK, with a micro cell of 30 μm x 30 μm and 6 mm x 6 mm area, is being assembled. In this work, we describe the SiPM carrier boards, the assembly process and the qualification tests performed, before and after assembly, on the focal plane modules to qualify the procedures.
Published: 2017

45. Modeling of New High Density NUV Sensitive Silicon Photomultiplier

Author: Elisabetta Bissaldi, D. Simone, Francesco Giordano, and L. Di Venere
Subjects: 010302 applied physics, Quenching, Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, business.industry, Amplifier, Geiger Model Avalanche Diode, 01 natural sciences, Capacitance, law.invention, Silicon photomultiplier, Overvoltage, law, Electrical Model, 0103 physical sciences, Optoelectronics, Waveform, Geiger counter, business, Sensitivity (electronics), Silicon Photomultiplier
Abstract: In recent years, Silicon Photomultipliers (SiPMs) have proven to be very performing devices, especially for those applications where high sensitivity to low intensity light and fast responses are required. A SiPM consists of a system of hundreds or even thousands of p-n junctions connected in parallel and operating in Geiger mode. We performed a modeling of the Near Ultraviolet High Density (NUV-HD) devices produced by Fondazione Bruno Kessler (FBK), trying to infer on the cell capacitance, quenching resistance and parasitic capacitances values. We measured the I-V and C-V responses and carefully studied waveforms acquired from sensors conditioned by a simple trans-impedance amplifier, thus obtaining information on the microscopic characteristic of the device. Results regarding the modeling as a function of the overvoltage will be presented and compared with simulations.
Published: 2017

46. The second catalog of flaring gamma-ray sources from the Fermi All-sky Variability Analysis

Author: L. Latronico, S. J. Fegan, M. Ackermann, Jean Ballet, C. Favuzzi, S. Maldera, F. Costanza, Roger Blandford, P. Bruel, M. E. Monzani, M. Razzano, Igor V. Moskalenko, Matteo Giomi, R. Bonino, Gino Tosti, Filippo D'Ammando, M. Di Mauro, Francesco Longo, Olaf Reimer, Dario Gasparrini, P. Fusco, Abhishek Desai, Nicola Omodei, K. Tanaka, J. B. Thayer, D. J. Thompson, Gudlaugur Johannesson, F. Spada, J. S. Perkins, Daniel Kocevski, Melissa Pesce-Rollins, C. C. Cheung, Vahé Petrosian, C. Cecchi, Giacomo Principe, D. Costantin, Janet Conrad, Lucas Guillemot, Luca Baldini, Johan Bregeon, W. B. Focke, F. Gargano, Frederic Piron, M. Takahashi, D. J. Suson, S. Abdollahi, T. A. Porter, R. A. Cameron, Marco Ajello, R. Buehler, A. Reimer, N. Di Lalla, I. A. Grenier, Sylvain Guiriec, Francesco Giordano, A. Franckowiak, M. Caragiulo, T. Ohsugi, Jingcheng Li, Monica Orienti, A. S. Johnson, A. Chekhtman, E. Cavazzuti, J. D. Magill, S. Buson, M. Kuss, Soebur Razzaque, Elizabeth Hays, Peter F. Michelson, Marcello Giroletti, David H. Green, G. Barbiellini, Matteo Negro, A. Morselli, Stefan Funk, Eleonora Troja, Giacomo Vianello, D. Horan, Andrea Albert, Elizabeth C. Ferrara, W. Mitthumsiri, M. N. Lovellette, G. La Mura, Nicola Giglietto, T. Glanzman, Gloria Spandre, Massimo Persic, P. Lubrano, Tsunefumi Mizuno, S. W. Digel, S. Cutini, G. Chiaro, M. N. Mazziotta, E. J. Siskind, Stefan Larsson, P. A. Caraveo, E. D. Bloom, J. E. Grove, Persis S. Drell, Yasushi Fukazawa, Ronaldo Bellazzini, P. Spinelli, Kent S. Wood, T. Jogler, F. de Palma, Eleonora Torresi, E. Nuss, L. Di Venere, Michael Mayer, Lukasz Stawarz, Carmelo Sgrò, Riccardo Rando, F. Loparco, D. Simone, David Paneque, Diego F. Torres, Elena Orlando, J. Becerra González, Elisabetta Bissaldi, Vaidehi S. Paliya, S. Rainò, Eugenio Bottacini, Alberto Manfreda, Denis Bastieri, B. Donaggio, S. Ciprini, R. Desiante, Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Montpellier 2 - Sciences et Techniques (UM2), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), Observatoire des Sciences de l'Univers en région Centre (OSUC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Unité Scientifique de la Station de Nançay (USN), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers en région Centre (OSUC), Université Paris sciences et lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), ITA, Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Centre National d’Études Spatiales [Paris] (CNES), Université d'Orléans (UO)-Observatoire des Sciences de l'Univers en région Centre (OSUC), PSL Research University (PSL)-PSL Research University (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-Centre National de la Recherche Scientifique (CNRS), Abdollahi, S., Ackermann, M., Ajello, M., Albert, A., Baldini, L., Ballet, J., Barbiellini, G., Bastieri, D., Becerra Gonzalez, J., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bloom, E. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Buson, S., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Chekhtman, A., Cheung, C. C., Chiaro, G., Ciprini, S., Conrad, J., Costantin, D., Costanza, F., Cutini, S., D'Ammando, F., Palma, F. De, Desai, A., Desiante, R., Digel, S. W., Lalla, N. Di, Mauro, M. Di, Venere, L. Di, Donaggio, B., Drell, P. S., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Focke, W. B., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giomi, M., Giordano, F., Giroletti, M., Glanzman, T., Green, D., Grenier, I. A., Grove, J. E., Guillemot, L., Guiriec, S., Hays, E., Horan, D., Jogler, T., Jóhannesson, G., Johnson, A. S., Kocevski, D., Kuss, M., Mura, G. La, Larsson, S., Latronico, L., Li, J., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J. D., Maldera, S., Manfreda, A., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Omodei, N., Orienti, M., Orlando, E., Paliya, V. S., Paneque, D., Perkins, J. S., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Porter, T. A., Principe, G., Rainò, S., Rando, R., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Stawarz, L., Suson, D. J., Takahashi, M., Tanaka, K., Thayer, J. B., Thompson, D. J., Torres, D. F., Torresi, E., Tosti, G., Troja, E., Vianello, G., Wood, K. S., Laboratoire AIM, Université Paris Diderot - Paris 7 ( UPD7 ) -Centre d'Etudes de Saclay, Université Montpellier 2 - Sciences et Techniques ( UM2 ), Laboratoire Leprince-Ringuet ( LLR ), Institut National de Physique Nucléaire et de Physique des Particules du CNRS ( IN2P3 ) -École polytechnique ( X ) -Centre National de la Recherche Scientifique ( CNRS ), Laboratoire de Physique et Chimie de l'Environnement et de l'Espace ( LPC2E ), Centre National de la Recherche Scientifique ( CNRS ) -Université d'Orléans ( UO ) -Institut national des sciences de l'Univers ( INSU - CNRS ), Unité Scientifique de la Station de Nançay ( USN ), and Institut national des sciences de l'Univers ( INSU - CNRS ) -Observatoire de Paris-Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: catalog, Active galactic nucleus, media_common.quotation_subject, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], Astrophysics::High Energy Astrophysical Phenomena, galaxies: active, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Spectral line, law.invention, Telescope, photometric [techniques], techniques: photometric, Spitzer Space Telescope, law, 0103 physical sciences, Astrophysics::Solar and Stellar Astrophysics, Variability, Blazar, 010303 astronomy & astrophysics, media_common, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), astroparticle physics, catalogs, gamma rays: general, Astronomy and Astrophysics, Space and Planetary Science, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Gamma ray, astroparticle physic, Astronomy and Astrophysic, Sky, [SDU]Sciences of the Universe [physics], active [galaxies], ddc:520, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, general [gamma rays], Fermi Gamma-ray Space Telescope
Abstract: We present the second catalog of flaring gamma-ray sources (2FAV) detected with the Fermi All-sky Variability Analysis (FAVA), a tool that blindly searches for transients over the entire sky observed by the Large Area Telescope (LAT) on board the \textit{Fermi} Gamma-ray Space Telescope. With respect to the first FAVA catalog, this catalog benefits from a larger data set, the latest LAT data release (Pass 8), as well as from an improved analysis that includes likelihood techniques for a more precise localization of the transients. Applying this analysis on the first 7.4 years of \textit{Fermi} observations, and in two separate energy bands 0.1$-$0.8 GeV and 0.8$-$300 GeV, a total of 4547 flares has been detected with a significance greater than $6\sigma$ (before trials), on the time scale of one week. Through spatial clustering of these flares, 518 variable gamma-ray sources are identified. Likely counterparts, based on positional coincidence, have been found for 441 sources, mostly among the blazar class of active galactic nuclei. For 77 2FAV sources, no likely gamma-ray counterpart has been found. For each source in the catalog, we provide the time, location, and spectrum of each flaring episode. Studying the spectra of the flares, we observe a harder-when-brighter behavior for flares associated with blazars, with the exception of BL Lac flares detected in the low-energy band. The photon indexes of the flares are never significantly smaller than 1.5. For a leptonic model, and under the assumption of isotropy, this limit suggests that the spectrum of the freshly accelerated electrons is never harder than $p\sim$2., Comment: Accepted for publication by The Astrophysical Journal Supplement. Online analysis results available at http://fermi.gsfc.nasa.gov/ssc/data/access/lat/FAVA/index.php . Corresponding authors: M. Giomi, R. Buehler, D. Kocevski, and M. Ajello
Published: 2016

47. Fermi-GBM GRBs with Characteristics Similar to GRB 170817A

Author: Colleen A. Wilson-Hodge, Rachel Hamburg, Bagrat Mailyan, Michael S. Briggs, Christian Malacaria, Péter Veres, Adam Goldstein, C. M. Hui, Dale D. Kocevski, Eric Burns, Oliver J. Roberts, Robert D. Preece, Elisabetta Bissaldi, and A. von Kienlin
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, 010504 meteorology & atmospheric sciences, Gravitational wave, Astrophysics::High Energy Astrophysical Phenomena, Spectral properties, Gamma-ray burst: general, FOS: Physical sciences, Binary number, Astronomy and Astrophysics, gamma-ray burst: individual (GRB170817A), Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Redshift, Neutron star, Space and Planetary Science, 0103 physical sciences, Astrophysics - High Energy Astrophysical Phenomena, Gamma-ray burst, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences, Fermi Gamma-ray Space Telescope
Abstract: We present a search for gamma-ray bursts in the Fermi-GBM 10 year catalog that show similar characteristics to GRB 170817A, the first electromagnetic counterpart to a GRB identified as a binary neutron star (BNS) merger via gravitational wave observations. Our search is focused on a non-thermal pulse, followed by a thermal component, as observed for GRB 170817A. We employ search methods based on the measured catalog parameters and Bayesian Block analysis. Our multi-pronged approach, which includes examination of the localization and spectral properties of the thermal component, yields a total of 13 candidates, including GRB 170817A and the previously reported similar burst, GRB 150101B. The similarity of the candidates is likely caused by the same processes that shaped the gamma-ray signal of GRB 170817A, thus providing evidence of a nearby sample of short GRBs resulting from BNS merger events. Some of the newly identfied counterparts were observed by other space telescopes and ground observatories, but none of them have a measured redshift. We present an analysis of this sub-sample, and we discuss two models. From uncovering 13 candidates during a time period of ten years we predict that Fermi-GBM will trigger on-board on about one burst similar to GRB 170817A per year., Comment: 18 pages, 9 figures, 4 tables. Accepted for publication in ApJ
Published: 2019

48. Minute-timescale >100 MeV γ-Ray Variability during the Giant Outburst of Quasar 3C 279 Observed by Fermi-LAT in 2015 June

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

49. FERMI-LAT OBSERVATIONS of HIGH-ENERGY γ-RAY EMISSION TOWARD the GALACTIC CENTER

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

50. CONTEMPORANEOUS BROADBAND OBSERVATIONS OF THREE HIGH-REDSHIFT BL LAC OBJECTS

Author: M. Caragiulo, S. J. Fegan, F. Spada, C. Okada, M. Katsuragawa, I. A. Grenier, Stefan Larsson, J. D. Magill, R. Bonino, Nestor Mirabal, E. Cavazzuti, David H. Green, Ronaldo Bellazzini, Aaron Dominguez, Gloria Spandre, Hiromitsu Takahashi, Roger W. Romani, E. Orlando, Gudlaugur Johannesson, H. An, Patricia Schady, Francesco Longo, Johan Bregeon, Diego F. Torres, D. Horan, F. Gargano, R. J. Britto, Dario Gasparrini, Johann Cohen-Tanugi, F. Loparco, L. Di Venere, F. Piron, M. E. Monzani, E. J. Siskind, Liang Li, R. Buehler, A. De Angelis, Marco Ajello, T. A. Porter, J. B. Thayer, G. Tosti, M. N. Mazziotta, Jingcheng Li, M. Di Mauro, Guido Barbiellini, Markus Ackermann, G. A. Caliandro, Luca Latronico, Giacomo Vianello, R. A. Cameron, Peter F. Michelson, Marcello Giroletti, M. Razzano, Filippo D'Ammando, S. Maldera, P. Bruel, Nicola Giglietto, Stefano Ciprini, Elizabeth C. Ferrara, Daniel Stern, Melissa Pesce-Rollins, Alberto Manfreda, Luca Baldini, F. Costanza, Justin D. Finke, Eric Charles, Elisabetta Bissaldi, M. Mayer, G. Pivato, Sylvain Guiriec, Roger Blandford, Matthew Wood, Warit Mitthumsiri, P. Spinelli, Carmelo Sgrò, Riccardo Rando, M. N. Lovellette, P. A. Caraveo, Persis S. Drell, Igor V. Moskalenko, Olaf Reimer, Francesco Giordano, D. Simone, E. Nuss, Denis Bastieri, David Paneque, S. Cutini, M. Kuss, A. Chekhtman, P. Lubrano, C. Favuzzi, S. Rainò, Tsunefumi Mizuno, G. Chiaro, P. Fusco, F. de Palma, R. Desiante, Matteo Negro, A. Morselli, K. S. Wood, T. Ohsugi, Eleonora Troja, Arne Rau, Claudia Cecchi, Ackermann M, Ajello M, An H, Baldini L, Barbiellini G, Bastieri D, Bellazzini R, Bissaldi E, Blandford RD, Bonino R, Bregeon J, Britto RJ, Bruel P, Buehler R, Caliandro GA, Cameron RA, Caragiulo M, Caraveo PA, Cavazzuti E, Cecchi C, Charles E, Chekhtman A, Chiaro G, Ciprini S, Cohen-Tanugi J, Costanza F, Cutini S, DAmmando F, de Angelis A, de Palma F, Desiante R, Di Mauro M, Di Venere L, Dominiguez A, Drell PS, Favuzzi C, Fegan SJ, Ferrara EC, Finke J, Fusco P, Gargano F, Gasparrini D, Giglietto N, Giordano F, Giroletti M, Green D, Grenier IA, Guiriec S, Horan D, Johannesson G, Katsuragawa M, Kuss M, Larsson S, Latronico L, Li J, Li L, Longo F, Loparco F, Lovellette MN, Lubrano P, Magill J, Maldera S, Manfreda A, Mayer M, Mazziotta MN, Michelson PF, Mirabal N, Mitthumsiri W, Mizuno T, Monzani ME, Morselli A, Moskalenko IV, Negro M, Nuss E, Ohsugi T, Okada C, Orlando E, Paneque D, Pesce-Rollins M, Piron F, Pivato G, Porter TA, Raino S, Rando R, Razzano M, Reimer O, Rau A, Romani RW, Schady P, Sgro C, Simone D, Siskind EJ, Spada F, Spandre G, Spinelli P, Stern D, Takahashi H, Thayer JB, Torres DF, Tosti G, Troja E, Vianello G, Wood KS, Wood M, Laboratoire Univers et Particules de Montpellier (LUPM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Montpellier 2 - Sciences et Techniques (UM2), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Département de Physique des Particules (ex SPP) (DPP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Fermi-LAT, Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Ackermann, M., Ajello, M., An, H., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Bissaldi, E., Blandford, R. D., Bonino, R., Bregeon, J., Britto, R. J., Bruel, P., Buehler, R., Caliandro, G. A., Cameron, R. A., Caragiulo, M., Caraveo, P. A., Cavazzuti, E., Cecchi, C., Charles, E., Chekhtman, A., Chiaro, G., Ciprini, S., Cohen Tanugi, J., Costanza, F., Cutini, S., D'Ammando, F., de Angelis, A., de Palma, F., Desiante, R., Di Mauro, M., Di Venere, L., Domínguez, A., Drell, P. S., Favuzzi, C., Fegan, S. J., Ferrara, E. C., Finke, J., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Giordano, F., Giroletti, M., Green, D., Grenier, I. A., Guiriec, S., Horan, D., Jóhannesson, G., Katsuragawa, M., Kuss, M., Larsson, S., Latronico, L., Li, J., Li, L., Longo, Francesco, Loparco, F., Lovellette, M. N., Lubrano, P., Magill, J., Maldera, S., Manfreda, A., Mayer, M., Mazziotta, M. N., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Ohsugi, T., Okada, C., Orlando, E., Paneque, D., Pesce Rollins, M., Piron, F., Pivato, G., Porter, T. A., Rainò, S., Rando, R., Razzano, M., Reimer, O., Rau, A., Romani, R. W., Schady, P., Sgrò, C., Simone, D., Siskind, E. J., Spada, F., Spandre, G., Spinelli, P., Stern, D., Takahashi, H., Thayer, J. B., Torres, D. F., Tosti, G., Troja, E., Vianello, G., Wood, K. S., Wood, M., ITA, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), and Département de Physique des Particules (ex SPP) (DPhP)
Subjects: Astrophysics::High Energy Astrophysical Phenomena, Population, galaxies: active, 3FGL J0811.2?7529), BL Lacertae objects: individual (3FGL J0022.1?1855, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Luminosity, law.invention, individual (3FGL J0022.1?1855, 3FGL J0630.9 -2406, 3FGL J0811.2?7529) [BL Lacertae objects], law, BL Lacertae objects: individual (3FGL J0022.1−1855, 3FGL J0630.9−2406, 3FGL J0811.2−7529), 0103 physical sciences, 3FGL J0630.9 -2406, Blazar, education, 010303 astronomy & astrophysics, BL Lacertae objects: individual, BL Lacertae objects: general, BL Lacertae objects: individual (3FGL J0022.1?1855, 3FGL J0630.9 -2406, 3FGL J0811.2?7529), radiation mechanisms: non-thermal, Space and Planetary Science, Astronomy and Astrophysics, Physics, education.field_of_study, 010308 nuclear & particles physics, general [BL Lacertae objects], Astronomy, general, BL Lacertae objects: individual: 3FGL J0022.1-1855, 3FGL J0630.9-2406, 3FGL J0811.2-7529, galaxies: active, radiation mechanisms: non-thermal, Astrophysics - High Energy Astrophysical Phenomena [BL Lacertae objects], Astronomy and Astrophysic, non-thermal [radiation mechanisms], Redshift, Synchrotron, Extragalactic background light, active [galaxies], BL Lacertae objects: general – BL Lacertae objects: individual (3FGL J0022.1−18555, 3FGL J0630.9−2406, 3FGL J0811.2−7529) – galaxies: active – radiation mechanisms: non-thermal, ddc:520, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics - High Energy Astrophysical Phenomena, BL Lac object, Fermi Gamma-ray Space Telescope
Abstract: 著者人数: 104名, Accepted: 2016-02-14, 資料番号: SA1160039000
Published: 2016

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