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FERMI DISCOVERY OF ...
FERMI DISCOVERY OF GAMMA-RAY EMISSION FROM NGC 1275
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Abdo, A. A. (author)
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Ackermann, M. (author)
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Ajello, M. (author)
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show more...
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Asano, K. (author)
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Baldini, L. (author)
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Ballet, J. (author)
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Barbiellini, G. (author)
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Bastieri, D. (author)
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Baughman, B. M. (author)
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Bechtol, K. (author)
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Bellazzini, R. (author)
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Blandford, R. D. (author)
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Bloom, E. D. (author)
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Bonamente, E. (author)
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Borgland, A. W. (author)
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Bregeon, J. (author)
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Brez, A. (author)
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Brigida, M. (author)
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Bruel, P. (author)
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Burnett, T. H. (author)
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Caliandro, G. A. (author)
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Cameron, R. A. (author)
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Caraveo, A. (author)
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Casandjian, J. M. (author)
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Cavazzuti, E. (author)
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Cecchi, C. (author)
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Celotti, A. (author)
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Chekhtman, A. (author)
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Cheung, C. C. (author)
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Chiang, J. (author)
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Ciprini, S. (author)
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Claus, R. (author)
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Cohen-Tanugi, J. (author)
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Colafrancesco, S. (author)
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Cominsky, L. R. (author)
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Conrad, J. (author)
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Costamante, L. (author)
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Dermer, C. D. (author)
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de Angelis, A. (author)
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de Palma, F. (author)
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Digel, S. W. (author)
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Donato, D. (author)
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Silva, E. D. E. (author)
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Drell, P. S. (author)
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Dubois, R. (author)
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Dumora, D. (author)
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Farnier, C. (author)
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Favuzzi, C. (author)
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Finke, J. (author)
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Focke, W. B. (author)
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Frailis, M. (author)
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Fukazawa, Y. (author)
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Funk, S. (author)
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Fusco, P. (author)
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Gargano, F. (author)
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Georganopoulos, M. (author)
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Germani, S. (author)
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Giebels, B. (author)
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Giglietto, N. (author)
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Giordano, F. (author)
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Glanzman, T. (author)
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Grenier, I. A. (author)
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Grondin, M. H. (author)
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Grove, J. E. (author)
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Guillemot, L. (author)
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Guiriec, S. (author)
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Hanabata, Y. (author)
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Harding, A. K. (author)
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Hartman, R. C. (author)
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Hayashida, M. (author)
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Hays, E. (author)
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Hughes, R. E. (author)
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Johannesson, G. (author)
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Johnson, A. S. (author)
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Johnson, R. P. (author)
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Johnson, W. N. (author)
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Kadler, M. (author)
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Kamae, T. (author)
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Kanai, Y. (author)
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Katagiri, H. (author)
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Kataoka, J. (author)
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Kawai, N. (author)
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Kerr, M. (author)
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Knodlseder, J. (author)
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Kuehn, F. (author)
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Kuss, M. (author)
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Latronico, L. (author)
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Lemoine-Goumard, M. (author)
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Longo, F. (author)
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Loparco, F. (author)
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Lott, B. (author)
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Lovellette, M. N. (author)
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Lubrano, P. (author)
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Madejski, G. M. (author)
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Makeev, A. (author)
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Mazziotta, M. N. (author)
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McEnery, J. E. (author)
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Meurer, C. (author)
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Michelson, P. F. (author)
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Mitthumsiri, W. (author)
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Mizuno, T. (author)
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Moiseev, A. (author)
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Monte, C. (author)
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Monzani, M. E. (author)
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Morselli, A. (author)
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Moskalenko, I. V. (author)
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Murgia, S. (author)
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Nakamori, T. (author)
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Nolan, L. (author)
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Norris, J. P. (author)
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Nuss, E. (author)
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Ohsugi, T. (author)
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Omodei, N. (author)
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Orlando, E. (author)
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Ormes, J. F. (author)
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Paneque, D. (author)
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Panetta, J. H. (author)
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Parent, D. (author)
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Pepe, M. (author)
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Pesce-Rollins, M. (author)
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Piron, F. (author)
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Porter, T. A. (author)
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Raino, S. (author)
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Razzano, M. (author)
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Reimer, A. (author)
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Reimer, O. (author)
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Reposeur, T. (author)
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Ritz, S. (author)
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Rodriguez, A. Y. (author)
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Romani, R. W. (author)
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Ryde, F. (author)
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Sadrozinski, H. F. W. (author)
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Sambruna, R. (author)
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Sanchez, D. (author)
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Sander, A. (author)
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Sato, R. (author)
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Parkinson, P. M. S. (author)
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Sgro, C. (author)
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Smith, D. A. (author)
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Smith, P. D. (author)
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Spandre, G. (author)
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Spinelli, P. (author)
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Starck, J. L. (author)
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Strickman, M. S. (author)
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Strong, A. W. (author)
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Suson, D. J. (author)
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Tajima, H. (author)
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Takahashi, H. (author)
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Takahashi, T. (author)
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Tanaka, T. (author)
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Taylor, G. B. (author)
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Thayer, J. G. (author)
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Thompson, D. J. (author)
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Torres, D. F. (author)
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Tosti, G. (author)
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Uchiyama, Y. (author)
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Usher, T. L. (author)
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Vilchez, N. (author)
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Vitale, V. (author)
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Waite, A. P. (author)
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Wood, K. S. (author)
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- Ylinen, T. (author)
- Högskolan i Kalmar,Naturvetenskapliga institutionen
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Ziegler, M. (author)
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Aller, H. D. (author)
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Aller, M. F. (author)
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Kellermann, K. I. (author)
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Kovalev, Y. Y. (author)
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Kovalev, Y. A. (author)
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Lister, M. L. (author)
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Pushkarev, A. B. (author)
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show less...
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(creator_code:org_t)
- 2009
- 2009
- English.
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In: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 699:1, s. 31-39
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- We report the discovery of high-energy (E > 100 MeV) gamma-ray emission from NGC 1275, a giant elliptical galaxy lying at the center of the Perseus cluster of galaxies, based on observations made with the Large Area Telescope (LAT) of the Fermi Gamma-ray Space Telescope. The positional center of the gamma-ray source is only approximate to 3' away from the NGC 1275 nucleus, well within the 95% LAT error circle of approximate to 5'. The spatial distribution of gamma-ay photons is consistent with a point source. The average flux and power-law photon index measured with the LAT from 2008 August 4 to 2008 December 5 are F-gamma = (2.10 +/- 0.23) x 10(-7) ph (>100 MeV) cm(-2) s(-1) and Gamma = 2.17 +/- 0.05, respectively. The measurements are statistically consistent with constant flux during the four-month LAT observing period. Previous EGRET observations gave an upper limit of F-gamma < 3.72 x 10(-8) ph (>100 MeV) cm(-2) s(-1) to the gamma-ray flux from NGC 1275. This indicates that the source is variable on timescales of years to decades, and therefore restricts the fraction of emission that can be produced in extended regions of the galaxy cluster. Contemporaneous and historical radio observations are also reported. The broadband spectrum of NGC 1275 is modeled with a simple one-zone synchrotron/synchrotron self-Compton model and a model with a decelerating jet flow.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- Fysik
- Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Abdo, A. A.
-
Ackermann, M.
-
Ajello, M.
-
Asano, K.
-
Baldini, L.
-
Ballet, J.
-
show more...
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Barbiellini, G.
-
Bastieri, D.
-
Baughman, B. M.
-
Bechtol, K.
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Bellazzini, R.
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Blandford, R. D.
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Bloom, E. D.
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Bonamente, E.
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Borgland, A. W.
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Bregeon, J.
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Brez, A.
-
Brigida, M.
-
Bruel, P.
-
Burnett, T. H.
-
Caliandro, G. A.
-
Cameron, R. A.
-
Caraveo, A.
-
Casandjian, J. M ...
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Cavazzuti, E.
-
Cecchi, C.
-
Celotti, A.
-
Chekhtman, A.
-
Cheung, C. C.
-
Chiang, J.
-
Ciprini, S.
-
Claus, R.
-
Cohen-Tanugi, J.
-
Colafrancesco, S ...
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Cominsky, L. R.
-
Conrad, J.
-
Costamante, L.
-
Dermer, C. D.
-
de Angelis, A.
-
de Palma, F.
-
Digel, S. W.
-
Donato, D.
-
Silva, E. D. E.
-
Drell, P. S.
-
Dubois, R.
-
Dumora, D.
-
Farnier, C.
-
Favuzzi, C.
-
Finke, J.
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Focke, W. B.
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Frailis, M.
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Fukazawa, Y.
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Funk, S.
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Fusco, P.
-
Gargano, F.
-
Georganopoulos, ...
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Germani, S.
-
Giebels, B.
-
Giglietto, N.
-
Giordano, F.
-
Glanzman, T.
-
Grenier, I. A.
-
Grondin, M. H.
-
Grove, J. E.
-
Guillemot, L.
-
Guiriec, S.
-
Hanabata, Y.
-
Harding, A. K.
-
Hartman, R. C.
-
Hayashida, M.
-
Hays, E.
-
Hughes, R. E.
-
Johannesson, G.
-
Johnson, A. S.
-
Johnson, R. P.
-
Johnson, W. N.
-
Kadler, M.
-
Kamae, T.
-
Kanai, Y.
-
Katagiri, H.
-
Kataoka, J.
-
Kawai, N.
-
Kerr, M.
-
Knodlseder, J.
-
Kuehn, F.
-
Kuss, M.
-
Latronico, L.
-
Lemoine-Goumard, ...
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Longo, F.
-
Loparco, F.
-
Lott, B.
-
Lovellette, M. N ...
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Lubrano, P.
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Madejski, G. M.
-
Makeev, A.
-
Mazziotta, M. N.
-
McEnery, J. E.
-
Meurer, C.
-
Michelson, P. F.
-
Mitthumsiri, W.
-
Mizuno, T.
-
Moiseev, A.
-
Monte, C.
-
Monzani, M. E.
-
Morselli, A.
-
Moskalenko, I. V ...
-
Murgia, S.
-
Nakamori, T.
-
Nolan, L.
-
Norris, J. P.
-
Nuss, E.
-
Ohsugi, T.
-
Omodei, N.
-
Orlando, E.
-
Ormes, J. F.
-
Paneque, D.
-
Panetta, J. H.
-
Parent, D.
-
Pepe, M.
-
Pesce-Rollins, M ...
-
Piron, F.
-
Porter, T. A.
-
Raino, S.
-
Razzano, M.
-
Reimer, A.
-
Reimer, O.
-
Reposeur, T.
-
Ritz, S.
-
Rodriguez, A. Y.
-
Romani, R. W.
-
Ryde, F.
-
Sadrozinski, H. ...
-
Sambruna, R.
-
Sanchez, D.
-
Sander, A.
-
Sato, R.
-
Parkinson, P. M. ...
-
Sgro, C.
-
Smith, D. A.
-
Smith, P. D.
-
Spandre, G.
-
Spinelli, P.
-
Starck, J. L.
-
Strickman, M. S.
-
Strong, A. W.
-
Suson, D. J.
-
Tajima, H.
-
Takahashi, H.
-
Takahashi, T.
-
Tanaka, T.
-
Taylor, G. B.
-
Thayer, J. G.
-
Thompson, D. J.
-
Torres, D. F.
-
Tosti, G.
-
Uchiyama, Y.
-
Usher, T. L.
-
Vilchez, N.
-
Vitale, V.
-
Waite, A. P.
-
Wood, K. S.
-
Ylinen, T.
-
Ziegler, M.
-
Aller, H. D.
-
Aller, M. F.
-
Kellermann, K. I ...
-
Kovalev, Y. Y.
-
Kovalev, Y. A.
-
Lister, M. L.
-
Pushkarev, A. B.
-
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- NATURAL SCIENCES
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Linnaeus University