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| Titre : |
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Fermi observations of high-energy gamma-ray emission from GRB 080825C |
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| Auteur : |
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A. A. Abdo, M. Ackermann, K. Asano, W. B. Atwood, M. Axelsson, L. Baldini, J. Ballet1, D. L. Band, G. Barbiellini, D. Bastieri, K. Bechtol, R. Bellazzini1, B. Berenji, P. N. Bhat, E. Bissaldi, E.D. Bloom, E. Bonamente, A.W. Borgland, A. Bouvier, J. Bregeon, A. Brez, M. S. Briggs, M. Brigida, P. Bruel2, T.H. Burnett, G.A. Caliandro, R. A. Cameron, P. A. Caraveo, J.M. Casandjian1, C. Cecchi, V. Chaplin, A. Chekhtman, C.C. Cheung, J. Chiang, S. Ciprini, R. Claus, J. Cohen-Tanugi3, L.R. Cominski, V. Connaughton, J. Conrad, S. Cutini, C.D. Dermer, A. De Angelis, F. De Palma, S.W. Digel, E. Do Couto E Silva, P. S. Drell, R. Dubois, D. Dumora4, C. Farnier3, C. Favuzzi, W.B. Focke, M. Frailis, Y. Fukazawa, P. Fusco, F. Gargano, D. Gasparrini, N. Gehrels, S. Germani, L. Gibby, B. Giebels2, N. Giglietto, F. Giordano, T. Glanzman, G. Godfrey, A. Goldstein, J. Granot, I. A. Grenier1, M.H. Grondin4, J.E. Grove, L. Guillemot4, S. Guiriec3, Y. Hanabata, A.K. Harding, M. Hayashida, E. Hays, R.E. Hugues, G. Jóhannesson, A. S. Johnson, W. N. Johnson, T. Kamae, H. Katagiri, J. Kataoka, N. Kawai, M. Kerr, J. Knödlseder, D. Kocevski, N. Komin1, 3, C. Kouveliotou, F. Kuehn, M. Kuss, L. Latronico, F. Longo, F. Loparco, B. Lott4, M.N. Lovellette, P. Lubrano, A. Makeev, M.N. Mazziotta, S. Mcbreen, J.E. Mcenery, S. Mcglynn, C. Meegan, C. Meurer, P.F. Michelson, W. Mitthumsiri, T. Mizuno, C. Monte, M.E. Monzani, E. Moretti, A. Morselli, I.V. Moskalenko, S. Murgia, T. Nakamori, P. L. Nolan, J.P. Norris, E. Nuss3, M. Ohno, T. Ohsugi, N. Omodei, E. Orlando, J.F. Ormes, M. Ozaki, W. S. Paciesas, D. Paneque, J.H. Panetta, D. Parent4, V. Pelassa3, M. Pepe, M. Pesce-Rollins, F. Piron3, T.A. Porter, R. Preece, S. Rainò, R. Rando, M. Razzano, S. Razzaque, O. Reimer, T. Reposeur4, S. Ritz, L.S. Rochester, A.Y. Rodriguez, M. Roth, F. Ryde, H. F.-W. Sadrozinski, D. Sanchez2, A. Sander, P.M. Saz Parkinson, J.D. Scargle, C. Sgro', E.J. Siskind, D. A. Smith4, P. D. Smith, G. Spandre, P. Spinelli, M. Stamatikos, M.S. Strickman, D.J. Suson, H. Tajima, H. Takahashi, T. Tanaka, J.B. Thayer, J.G. Thayer, L. Tibaldo, D.F. Torres, G. Tosti, A. Tramacere, Y. Uchiyama, T.L. Usher, A. J. van der Horst, V. Vasileiou, N. Vilchez, V. Vitale, A. von Kienlin, A. P. Waite, P. Wang, C. Wilson-Hodge, B. L. Winer, K.S. Wood, T. Ylinen |
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| Laboratoire : |
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| Résumé : |
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The Fermi Gamma-ray Space Telescope (FGST) has opened a new high-energy window in the study of Gamma-Ray Bursts (GRBs). Here we present a thorough analysis of GRB 080825C, which triggered the Fermi Gamma-ray Burst Monitor (GBM), and was the first firm detection of a GRB by the Fermi Large Area Telescope (LAT). We discuss the LAT event selections, background estimation, significance calculations, and localization for Fermi GRBs in general and GRB 080825C in particular. We show the results of temporal and time-resolved spectral analysis of the GBM and LAT data. We also present some theoretical interpretation of GRB 080825C observations as well as some common features observed in other LAT GRBs. |
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| Collaboration/Projet : |
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Fermi GBM
Fermi-LAT |
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| Type de publication : |
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Articles dans des revues avec comité de lecture |
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Date de publication
ou d'écriture : |
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10/12/2009 |
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| Nom du périodique : |
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| Astrophysical Journal (Astrophys. J.) |
| Publisher |
American Astronomical Society |
| ISSN |
0004-637X |
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| Volume : |
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707 |
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| Page/Article : |
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580-592 |
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| Commentaire : |
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18 pages, 7 figures. Accepted for publication in ApJ. Corresponding authors: A. Bouvier, J. Granot, A.J. van der Horst |
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| Mot(s)-clé(s) : |
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gamma rays: bursts |
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