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Fermi large area te...
Fermi large area telescope observation of a gamma-ray source at the position of Eta Carinae
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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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Allafort, A. (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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Bechtol, K. (author)
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Bellazzini, R. (author)
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Berenji, B. (author)
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Blandford, R. D. (author)
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Bonamente, E. (author)
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Borgland, A. W. (author)
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Bouvier, A. (author)
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Brandt, T. J. (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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Buehler, R. (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, P. A. (author)
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Carrigan, S. (author)
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Casandjian, J. M. (author)
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Cecchi, C. (author)
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Celik, Oe (author)
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Chaty, S. (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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Cominsky, L. R. (author)
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Conrad, J. (author)
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Dermer, C. D. (author)
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de Palma, F. (author)
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Digel, S. W. (author)
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do Couto e Silva, 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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Favuzzi, C. (author)
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Fegan, S. J. (author)
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Ferrara, E. C. (author)
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Frailis, M. (author)
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Fukazawa, Y. (author)
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Fusco, P. (author)
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Gargano, F. (author)
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Gehrels, N. (author)
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Germani, S. (author)
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Giglietto, N. (author)
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Giordano, F. (author)
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Godfrey, G. (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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Hadasch, D. (author)
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Hanabata, Y. (author)
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Harding, A. K. (author)
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Hayashida, M. (author)
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Hays, E. (author)
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Hill, A. B. (author)
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Horan, D. (author)
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Hughes, R. E. (author)
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Itoh, R. (author)
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- Jackson, Miranda (author)
- KTH,Partikel- och astropartikelfysik
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Johannesson, G. (author)
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Johnson, A. S. (author)
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Johnson, W. N. (author)
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Kamae, T. (author)
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Katagiri, H. (author)
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Kataoka, J. (author)
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Kerr, M. (author)
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Knoedlseder, J. (author)
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Kuss, M. (author)
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Lande, J. (author)
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Latronico, L. (author)
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Lee, S. -H (author)
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Lemoine-Goumard, M. (author)
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Livingstone, M. (author)
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Garde, M. Llena (author)
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Longo, F. (author)
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Loparco, F. (author)
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Lovellette, M. N. (author)
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Lubrano, P. (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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Mehault, J. (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. 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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Naumann-Godo, M. (author)
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Nolan, P. 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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Okumura, A. (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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Ozaki, M. (author)
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Panetta, J. H. (author)
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Parent, D. (author)
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Pelassa, V. (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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Rando, R. (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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Rodriguez, A. Y. (author)
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Romani, R. W. (author)
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Roth, M. (author)
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Sadrozinski, H. F. -W (author)
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Sander, A. (author)
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Parkinson, P. M. Saz (author)
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Scargle, J. D. (author)
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Sgro, C. (author)
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Siskind, E. J. (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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Strickman, M. S. (author)
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Suson, D. J. (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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Thayer, J. B. (author)
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Thayer, J. G. (author)
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Thompson, D. J. (author)
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Tibaldo, L. (author)
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Tibolla, O. (author)
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Torres, D. F. (author)
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Tosti, G. (author)
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Tramacere, A. (author)
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Uchiyama, Y. (author)
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Usher, T. L. (author)
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Vandenbroucke, J. (author)
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Vasileiou, V. (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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Wallace, E. (author)
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Wang, P. (author)
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Winer, B. L. (author)
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Wood, K. S. (author)
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Yang, Z. (author)
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- Ylinen, Tomi (author)
- KTH,Partikel- och astropartikelfysik
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Ziegler, M. (author)
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(creator_code:org_t)
- 2010
- 2010
- English.
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In: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 723:1, s. 649-657
- 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
- The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope detected a gamma-ray source that is spatially consistent with the location of Eta Carinae. This source has been persistently bright since the beginning of the LAT survey observations (from 2008 August to 2009 July, the time interval considered here). The gamma-ray signal is detected significantly throughout the LAT energy band (i.e., up to similar to 100 GeV). The 0.1-100 GeV energy spectrum is well represented by a combination of a cutoff power-law model (<10 GeV) and a hard power-law component (>10 GeV). The total flux (>100 MeV) is 3.7(-0.1)(+0.3) x 10(-7) photons s(-1) cm(-2), with additional systematic uncertainties of 10%, and consistent with the average flux measured by AGILE. The light curve obtained by Fermi is consistent with steady emission. Our observations do not confirm the presence of a gamma-ray flare in 2008 October, as reported by Tavani et al., although we cannot exclude that a flare lasting only a few hours escaped detection by the Fermi LAT. We also do not find any evidence for gamma-ray variability that correlates with the large X-ray variability of Eta Carinae observed during 2008 December and 2009 January. We are thus not able to establish an unambiguous identification of the LAT source with Eta Carinae.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- binaries: general
- stars: individual (Eta Carinae)
- supergiants
- Astronomy and astrophysics
- Astronomi och astrofysik
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.
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Ackermann, M.
-
Ajello, M.
-
Allafort, A.
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Baldini, L.
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Ballet, J.
-
show more...
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Barbiellini, G.
-
Bastieri, D.
-
Bechtol, K.
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Bellazzini, R.
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Berenji, B.
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Blandford, R. D.
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Bonamente, E.
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Borgland, A. W.
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Bouvier, A.
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Brandt, T. J.
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Bregeon, J.
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Brez, A.
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Brigida, M.
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Bruel, P.
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Buehler, R.
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Burnett, T. H.
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Caliandro, G. A.
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Cameron, R. A.
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Caraveo, P. A.
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Carrigan, S.
-
Casandjian, J. M ...
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Cecchi, C.
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Celik, Oe
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Chaty, S.
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Chekhtman, A.
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Cheung, C. C.
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Chiang, J.
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Ciprini, S.
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Claus, R.
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Cohen-Tanugi, J.
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Cominsky, L. R.
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Conrad, J.
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Dermer, C. D.
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de Palma, F.
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Digel, S. W.
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do Couto e Silva ...
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Drell, P. S.
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Dubois, R.
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Dumora, D.
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Favuzzi, C.
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Fegan, S. J.
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Ferrara, E. C.
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Frailis, M.
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Fukazawa, Y.
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Fusco, P.
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Gargano, F.
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Gehrels, N.
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Germani, S.
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Giglietto, N.
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Giordano, F.
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Godfrey, G.
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Grenier, I. A.
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Grondin, M. -H
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Grove, J. E.
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Guillemot, L.
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Guiriec, S.
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Hadasch, D.
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Hanabata, Y.
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Harding, A. K.
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Hayashida, M.
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Hays, E.
-
Hill, A. B.
-
Horan, D.
-
Hughes, R. E.
-
Itoh, R.
-
Jackson, Miranda
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Johannesson, G.
-
Johnson, A. S.
-
Johnson, W. N.
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Kamae, T.
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Katagiri, H.
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Kataoka, J.
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Kerr, M.
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Knoedlseder, J.
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Kuss, M.
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Lande, J.
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Latronico, L.
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Lee, S. -H
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Lemoine-Goumard, ...
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Livingstone, M.
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Garde, M. Llena
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Longo, F.
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Loparco, F.
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Lovellette, M. N ...
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Lubrano, P.
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Makeev, A.
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Mazziotta, M. N.
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McEnery, J. E.
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Mehault, J.
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Michelson, P. F.
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Mitthumsiri, W.
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Mizuno, T.
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Moiseev, A. A.
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Monte, C.
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Monzani, M. E.
-
Morselli, A.
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Moskalenko, I. V ...
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Murgia, S.
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Nakamori, T.
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Naumann-Godo, M.
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Nolan, P. L.
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Norris, J. P.
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Nuss, E.
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Ohsugi, T.
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Okumura, A.
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Omodei, N.
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Orlando, E.
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Ormes, J. F.
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Ozaki, M.
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Panetta, J. H.
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Parent, D.
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Pelassa, V.
-
Pepe, M.
-
Pesce-Rollins, M ...
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Piron, F.
-
Porter, T. A.
-
Raino, S.
-
Rando, R.
-
Razzano, M.
-
Reimer, A.
-
Reimer, O.
-
Reposeur, T.
-
Rodriguez, A. Y.
-
Romani, R. W.
-
Roth, M.
-
Sadrozinski, H. ...
-
Sander, A.
-
Parkinson, P. M. ...
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Scargle, J. D.
-
Sgro, C.
-
Siskind, E. J.
-
Smith, D. A.
-
Smith, P. D.
-
Spandre, G.
-
Spinelli, P.
-
Strickman, M. S.
-
Suson, D. J.
-
Takahashi, H.
-
Takahashi, T.
-
Tanaka, T.
-
Thayer, J. B.
-
Thayer, J. G.
-
Thompson, D. J.
-
Tibaldo, L.
-
Tibolla, O.
-
Torres, D. F.
-
Tosti, G.
-
Tramacere, A.
-
Uchiyama, Y.
-
Usher, T. L.
-
Vandenbroucke, J ...
-
Vasileiou, V.
-
Vilchez, N.
-
Vitale, V.
-
Waite, A. P.
-
Wallace, E.
-
Wang, P.
-
Winer, B. L.
-
Wood, K. S.
-
Yang, Z.
-
Ylinen, Tomi
-
Ziegler, M.
-
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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Astrophysical Jo ...
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Royal Institute of Technology