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Fermi/LAT observati...
Fermi/LAT observations of LS 5039
- Article/chapterEnglish2009
Publisher, publication year, extent ...
Numbers
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LIBRIS-ID:oai:DiVA.org:su-33753
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-33753URI
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https://doi.org/10.1088/0004-637X/706/1/L56DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31952URI
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https://urn.kb.se/resolve?urn=urn:nbn:se:hik:diva-2818URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20110330
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The first results from observations of the high-mass X-ray binary LS 5039 using the Fermi Gamma-ray Space Telescope data between 2008 August and 2009 June are presented. Our results indicate variability that is consistent with the binary period, with the emission being modulated with a period of 3.903 ± 0.005 days; the first detection of this modulation at GeV energies. The light curve is characterized by a broad peak around superior conjunction in agreement with inverse Compton scattering models. The spectrum is represented by a power law with an exponential cutoff, yielding an overall flux (100 MeV-300 GeV) of 4.9 ± 0.5(stat) ± 1.8(syst) ×10–7 photon cm–2 s–1, with a cutoff at 2.1 ± 0.3(stat) ± 1.1(syst) GeV and photon index Γ = 1.9 ± 0.1(stat) ± 0.3(syst). The spectrum is observed to vary with orbital phase, specifically between inferior and superior conjunction. We suggest that the presence of a cutoff in the spectrum may be indicative of magnetospheric emission similar to the emission seen in many pulsars by Fermi.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Ackermann, M.
(author)
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Ajello, M.
(author)
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Atwood, W. B.
(author)
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Axelsson, M.Stockholms universitet,Institutionen för astronomi(Swepub:kth)u1pcmyc0
(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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Berenji, B.
(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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Buson, S.
(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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Casandjian, J. M.
(author)
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Cavazzuti, E.
(author)
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Cecchi, C.
(author)
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Çelik, Ö.
(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.Stockholms universitet,Fysikum
(author)
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Corbel, S.
(author)
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Corbet, R.
(author)
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Cutini, S.
(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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Silva, E. do Couto e.
(author)
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Drell, P. S.
(author)
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Dubois, R.
(author)
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Dubus, G.
(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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Fegan, S. J.
(author)
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Focke, W. B.
(author)
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Fortin, P.
(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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Gasparrini, D.
(author)
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Gehrels, N.
(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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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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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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Jackson, M. S.
(author)
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Jóhannesson, G.
(author)
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Johnson, A. S.
(author)
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Johnson, T. J.
(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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Kawai, N.
(author)
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Kerr, M.
(author)
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Knödlseder, J.
(author)
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Kocian, M. L.
(author)
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Kuehn, F.
(author)
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Kuss, M.
(author)
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Lande, J.
(author)
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Larsson, S.Stockholms universitet,Fysikum
(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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Marelli, M.
(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. 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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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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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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Paneque, D.
(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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Rainò, S.
(author)
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Rando, R.
(author)
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Ray, P. S.
(author)
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Razzano, M.
(author)
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Rea, N.
(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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Rochester, L. S.
(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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Ryde, FelixKTH,Partikel- och astropartikelfysik(Swepub:kth)u1tlyg6w
(author)
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Sadrozinski, H. F.-W.
(author)
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Sanchez, D.
(author)
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Sander, A.
(author)
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Saz Parkinson, P. M.
(author)
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Scargle, J. D.
(author)
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Sgrò, C.
(author)
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Sierpowska-Bartosik, A.
(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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Tajima, H.
(author)
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Takahashi, H.
(author)
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Ylinen, T.Högskolan i Kalmar,Naturvetenskapliga institutionen(Swepub:lnu)eylto
(author)
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Tanaka, T.
(author)
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Tanaka, Y.
(author)
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Thayer, J. B.
(author)
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Thompson, D. J.
(author)
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Tibaldo, L.
(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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Vasileiou, V.
(author)
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Venter, C.
(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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Ylinen, TomiKTH,Partikel- och astropartikelfysik(Swepub:kth)u1vmovqg
(author)
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Ziegler, M.
(author)
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Stockholms universitetInstitutionen för astronomi
(creator_code:org_t)
Related titles
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In:Astrophysical Journal Letters706:1, s. L56-L610571-72482041-8205
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- By the author/editor
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Abdo, A. A.
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Ackermann, M.
-
Ajello, M.
-
Atwood, W. B.
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Axelsson, M.
-
Baldini, L.
-
show more...
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Ballet, J.
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Barbiellini, G.
-
Bastieri, D.
-
Baughman, B. M.
-
Bechtol, K.
-
Bellazzini, R.
-
Berenji, B.
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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.
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Brigida, M.
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Bruel, P.
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Burnett, T. H.
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Buson, S.
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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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Casandjian, J. M ...
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Cavazzuti, E.
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Cecchi, C.
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Çelik, Ö.
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Chaty, S.
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Chekhtman, A.
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Cheung, C. C.
-
Chiang, J.
-
Ciprini, S.
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Claus, R.
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Cohen-Tanugi, J.
-
Cominsky, L. R.
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Conrad, J.
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Corbel, S.
-
Corbet, R.
-
Cutini, S.
-
Dermer, C. D.
-
de Angelis, A.
-
de Palma, F.
-
Digel, S. W.
-
Silva, E. do Cou ...
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Drell, P. S.
-
Dubois, R.
-
Dubus, G.
-
Dumora, D.
-
Farnier, C.
-
Favuzzi, C.
-
Fegan, S. J.
-
Focke, W. B.
-
Fortin, P.
-
Frailis, M.
-
Fukazawa, Y.
-
Funk, S.
-
Fusco, P.
-
Gargano, F.
-
Gasparrini, D.
-
Gehrels, N.
-
Germani, S.
-
Giebels, B.
-
Giglietto, N.
-
Giordano, F.
-
Glanzman, T.
-
Godfrey, G.
-
Grenier, I. A.
-
Grondin, M.-H.
-
Grove, J. E.
-
Guillemot, L.
-
Guiriec, S.
-
Hanabata, Y.
-
Harding, A. K.
-
Hayashida, M.
-
Hays, E.
-
Hill, A. B.
-
Horan, D.
-
Hughes, R. E.
-
Jackson, M. S.
-
Jóhannesson, G.
-
Johnson, A. S.
-
Johnson, T. J.
-
Johnson, W. N.
-
Kamae, T.
-
Katagiri, H.
-
Kataoka, J.
-
Kawai, N.
-
Kerr, M.
-
Knödlseder, J.
-
Kocian, M. L.
-
Kuehn, F.
-
Kuss, M.
-
Lande, J.
-
Larsson, S.
-
Latronico, L.
-
Lemoine-Goumard, ...
-
Longo, F.
-
Loparco, F.
-
Lott, B.
-
Lovellette, M. N ...
-
Lubrano, P.
-
Madejski, G. M.
-
Makeev, A.
-
Marelli, M.
-
Mazziotta, M. N.
-
McEnery, J. E.
-
Meurer, C.
-
Michelson, P. F.
-
Mitthumsiri, W.
-
Mizuno, T.
-
Moiseev, A. A.
-
Monte, C.
-
Monzani, M. E.
-
Morselli, A.
-
Moskalenko, I. V ...
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Murgia, S.
-
Nolan, P. L.
-
Norris, J. P.
-
Nuss, E.
-
Ohsugi, T.
-
Omodei, N.
-
Orlando, E.
-
Ormes, J. F.
-
Ozaki, M.
-
Paneque, D.
-
Panetta, J. H.
-
Parent, D.
-
Pelassa, V.
-
Pepe, M.
-
Pesce-Rollins, M ...
-
Piron, F.
-
Porter, T. A.
-
Rainò, S.
-
Rando, R.
-
Ray, P. S.
-
Razzano, M.
-
Rea, N.
-
Reimer, A.
-
Reimer, O.
-
Reposeur, T.
-
Ritz, S.
-
Rochester, L. S.
-
Rodriguez, A. Y.
-
Romani, R. W.
-
Roth, M.
-
Ryde, Felix
-
Sadrozinski, H. ...
-
Sanchez, D.
-
Sander, A.
-
Saz Parkinson, P ...
-
Scargle, J. D.
-
Sgrò, C.
-
Sierpowska-Barto ...
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Siskind, E. J.
-
Smith, D. A.
-
Smith, P. D.
-
Spandre, G.
-
Spinelli, P.
-
Strickman, M. S.
-
Suson, D. J.
-
Tajima, H.
-
Takahashi, H.
-
Ylinen, T.
-
Tanaka, T.
-
Tanaka, Y.
-
Thayer, J. B.
-
Thompson, D. J.
-
Tibaldo, L.
-
Torres, D. F.
-
Tosti, G.
-
Tramacere, A.
-
Uchiyama, Y.
-
Usher, T. L.
-
Vasileiou, V.
-
Venter, C.
-
Vilchez, N.
-
Vitale, V.
-
Waite, A. P.
-
Wallace, E.
-
Wang, P.
-
Winer, B. L.
-
Wood, K. S.
-
Ylinen, Tomi
-
Ziegler, M.
-
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