FERMI-LAT AND WMAP OBSERVATIONS OF THE PUPPIS A SUPERNOVA REMNANT
| dc.contributor.author | W. HEWITT, J. | |
| dc.contributor.author | GRONDIN, M.-H. | |
| hal.structure.identifier | GLAST | |
| dc.contributor.author | LEMOINE-GOUMARD, M. | |
| hal.structure.identifier | GLAST | |
| dc.contributor.author | REPOSEUR, T. | |
| hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
| dc.contributor.author | BALLET, Jean | |
| dc.contributor.author | TANAKA, T. | |
| dc.date.issued | 2012-11-10 | |
| dc.identifier.issn | 0004-637X | |
| dc.description.abstractEn | We report the detection of GeV γ -ray emission from the supernova remnant (SNR) Puppis A with the Fermi Gamma-Ray Space Telescope. Puppis A is among the faintest SNRs yet detected at GeV energies, with a luminosity of only 2.7×1034 (D/2.2 kpc)2 erg s−1 between 1 and 100 GeV. The γ -ray emission from the remnant is spatially extended, with a morphology matching that of the radio and X-ray emission, and is well described by a simple power law with an index of 2.1.We attempt to model the broadband spectral energy distribution (SED), from radio to γ -rays, using standard nonthermal emission mechanisms. To constrain the relativistic electron population we use 7 years ofWilkinsonMicrowave Anisotropy Probe data to extend the radio spectrum up to 93 GHz.Both leptonic- and hadronic-dominated models can reproduce the nonthermal SED, requiring a total content of cosmic-ray electrons and protons accelerated in Puppis A of at least WCR ≈ (1-5) × 1049 erg. | |
| dc.language.iso | en | |
| dc.publisher | American Astronomical Society | |
| dc.subject.en | acceleration of particles | |
| dc.subject.en | cosmic rays | |
| dc.subject.en | ISM: individual objects (Puppis A) | |
| dc.subject.en | radiation mechanisms: non-thermal | |
| dc.title.en | FERMI-LAT AND WMAP OBSERVATIONS OF THE PUPPIS A SUPERNOVA REMNANT | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1088/0004-637X/759/2/89 | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE] | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE] | |
| dc.identifier.arxiv | 1210.4474 | |
| bordeaux.journal | The Astrophysical Journal | |
| bordeaux.page | 89 | |
| bordeaux.volume | 759 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | in2p3-00767681 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00767681v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Astrophysical%20Journal&rft.date=2012-11-10&rft.volume=759&rft.spage=89&rft.epage=89&rft.eissn=0004-637X&rft.issn=0004-637X&rft.au=W.%20HEWITT,%20J.&GRONDIN,%20M.-H.&LEMOINE-GOUMARD,%20M.&REPOSEUR,%20T.&BALLET,%20Jean&rft.genre=article |
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