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Soft gamma-ray galactic ridge emission as unveiled by SPI aboard INTEGRAL

hal.structure.identifierCentre d'étude spatiale des rayonnements [CESR]
dc.contributor.authorKNÖDLSEDER, Jürgen
hal.structure.identifierCentre d'étude spatiale des rayonnements [CESR]
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorLONJOU, Vincent
hal.structure.identifierCentre d'étude spatiale des rayonnements [CESR]
dc.contributor.authorWEIDENSPOINTNER, Georg
hal.structure.identifierCentre d'étude spatiale des rayonnements [CESR]
dc.contributor.authorJEAN, Pierre
hal.structure.identifierMax-Planck-Institut für Extraterrestrische Physik [MPE]
dc.contributor.authorSTRONG, Andy
hal.structure.identifierMax-Planck-Institut für Extraterrestrische Physik [MPE]
dc.contributor.authorDIEHL, Roland
hal.structure.identifierDépartement d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée [DAPNIA]
dc.contributor.authorCORDIER, Bertrand
hal.structure.identifierDépartement d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée [DAPNIA]
dc.contributor.authorSCHANNE, Stéphane
hal.structure.identifierEuropean Space Research and Technology Centre [ESTEC]
dc.contributor.authorWINKLER, Christoph
dc.contributor.editorSteven Ritz
dc.contributor.editorPeter Michelson
dc.contributor.editorCharles A. Meegan
dc.date.issued2007-07-01
dc.date.conference2007-02-05
dc.description.abstractEnThe origin of the soft gamma-ray (200 keV - 1 MeV) galactic ridge emission is one of the long-standing mysteries in the field of high-energy astrophysics. Population studies at lower energies have shown that emission from accreting compact objects gradually recedes in this domain, leaving place to another source of gamma-ray emission that is characterised by a hard power-law spectrum extending from 100 keV up to 100 MeV The nature of this hard component has remained so far elusive, partly due to the lack of sufficiently sensitive imaging telescopes that would be able to unveil the spatial distribution of the emission. The SPI telescope aboard INTEGRAL allows now for the first time the simultaneous imaging of diffuse and point-like emission in the soft gamma-ray regime. We present here all-sky images of the soft gamma-ray continuum emission that clearly reveal the morphology of the different emission components. We discuss the implications of our results on the nature of underlying emission processes and we put our results in perspective of GLAST studies of diffuse galactic continuum emission.
dc.language.isoen
dc.publisherAmerican Institute of Physics
dc.source.titleTHE FIRST GLAST SYMPOSIUM
dc.title.enSoft gamma-ray galactic ridge emission as unveiled by SPI aboard INTEGRAL
dc.typeCommunication dans un congrès
dc.identifier.doi10.1063/1.2757284
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv0708.0078
bordeaux.page130-134
bordeaux.volume921
bordeaux.countryUS
bordeaux.title.proceedingTHE FIRST GLAST SYMPOSIUM
bordeaux.conference.cityStanford
bordeaux.peerReviewedoui
hal.identifierhal-00166099
hal.version1
hal.invitednon
hal.proceedingsoui
hal.conference.end2007-02-08
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00166099v1
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