Show simple item record

dc.contributor.authorRANI, B.
dc.contributor.authorKRICHBAUM, T.P.
hal.structure.identifierGLAST
dc.contributor.authorLOTT, B.
dc.contributor.authorFUHRMANN, L.
dc.contributor.authorZENSUS, J.A.
dc.date.issued2013
dc.identifier.issn0273-1177
dc.description.abstractEnThe GeV observations by Fermi-LAT give us the opportunity to characterize the high-energy emission (100 MeV - 300 GeV) variability properties of the BL Lac object S5 0716+714. In this study, we performed flux and spectral analysis of more than 3 year long (August 2008 to April 2012) Fermi-LAT data of the source. During this period, the source exhibits two different modes of flux variability with characteristic timescales of ~75 and ~140 days, respectively. We also notice that the flux variations are characterized by a weak spectral hardening. The GeV spectrum of the source shows a clear deviation from a simple power law, and is better explained by a broken power law. Similar to other bright Fermi blazars, the break energy does not vary with the source flux during the different activity states. We discuss several possible scenarios to explain the observed spectral break.
dc.language.isoen
dc.publisherElsevier
dc.subject.enActive
dc.subject.enBL Lacertae objects
dc.subject.enS5 0716+714
dc.subject.engamma rays
dc.subject.enGalaxies
dc.subject.enIndividual
dc.typeArticle de revue
dc.identifier.doi10.1016/j.asr.2013.02.010
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE]
dc.identifier.arxiv1302.3083
bordeaux.journalAdvances in Space Research
bordeaux.page2358-2367
bordeaux.volume51
bordeaux.peerReviewedoui
hal.identifierin2p3-00853669
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-00853669v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Advances%20in%20Space%20Research&rft.date=2013&rft.volume=51&rft.spage=2358-2367&rft.epage=2358-2367&rft.eissn=0273-1177&rft.issn=0273-1177&rft.au=RANI,%20B.&KRICHBAUM,%20T.P.&LOTT,%20B.&FUHRMANN,%20L.&ZENSUS,%20J.A.&rft.genre=article


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record