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Fermi-LAT Observation of Supernova Remnant S147

dc.contributor.authorKATSUTA, J.
dc.contributor.authorUCHIYAMA, Y.
dc.contributor.authorTANAKA, T.
dc.contributor.authorTAJIMA, H.
dc.contributor.authorBECHTOL, K.
dc.contributor.authorFUNK, S.
dc.contributor.authorLANDE, J.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorBALLET, Jean
dc.contributor.authorHANABATA, Y.
hal.structure.identifierGLAST
dc.contributor.authorLEMOINE-GOUMARD, M.
dc.contributor.authorTAKAHASHI, T.
dc.date.issued2012
dc.identifier.issn0004-637X
dc.description.abstractEnWe present an analysis of gamma-ray data obtained with the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope in the region around SNR S147 (G180.0-1.7). A spatially extended gamma-ray source detected in an energy range of 0.2--10 GeV is found to coincide with SNR S147. We confirm its spatial extension at >5sigma confidence level. The gamma-ray flux is (3.8 \pm 0.6) x 10^{-8} photons cm^{-2} s^{-1}, corresponding to a luminosity of 1.3 x 10^{34} (d/1.3 kpc)^2 erg s^{-1} in this energy range. The gamma-ray emission exhibits a possible spatial correlation with prominent Halpha filaments of S147. There is no indication that the gamma-ray emission comes from the associated pulsar PSR J0538+2817. The gamma-ray spectrum integrated over the remnant is likely dominated by the decay of neutral pi mesons produced through the proton--proton collisions in the filaments. Reacceleration of pre-existing CRs and subsequent adiabatic compression in the filaments is sufficient to provide the required energy density of high-energy protons.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.subject.enacceleration of particles
dc.subject.enISM: individual objects (S147)
dc.subject.enradiation mechanisms: non-thermal
dc.title.enFermi-LAT Observation of Supernova Remnant S147
dc.typeArticle de revue
dc.identifier.doi10.1088/0004-637X/752/2/135
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.arxiv1204.4703
bordeaux.journalThe Astrophysical Journal
bordeaux.page135
bordeaux.volume752
bordeaux.peerReviewedoui
hal.identifierin2p3-00719356
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-00719356v1
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