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Fermi Large Area Telescope observations of the Crab pulsar and Nebula

dc.contributor.authorABDO, A.A.
dc.contributor.authorACKERMANN, Markus
dc.contributor.authorAJELLO, Marco
dc.contributor.authorB. ATWOOD, W.
dc.contributor.authorAXELSSON, Magnus
dc.contributor.authorBALDINI, Luca
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorBALLET, Jean
dc.contributor.authorBARBIELLINI, Guido
dc.contributor.authorG. BARING, M.
dc.contributor.authorBASTIERI, D.
dc.contributor.authorBECHTOL, K.
dc.contributor.authorBELLAZZINI, R.
dc.contributor.authorBERENJI, B.
dc.contributor.authorD. BLANDFORD, R.
dc.contributor.authorD. BLOOM, E.
dc.contributor.authorBONAMENTE, E.
dc.contributor.authorW. BORGLAND, A.
dc.contributor.authorBREGEON, J.
dc.contributor.authorBREZ, A.
dc.contributor.authorBRIGIDA, M.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorBRUEL, Pascal
dc.contributor.authorH. BURNETT, T.
dc.contributor.authorA. CALIANDRO, G.
dc.contributor.authorA. CAMERON, R.
dc.contributor.authorCAMILO, F.
dc.contributor.authorCARAVEO, P. A.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorM. CASANDJIAN, J.
dc.contributor.authorCECCHI, C.
dc.contributor.authorCELIK, O.
dc.contributor.authorCHEKHTMAN, A.
dc.contributor.authorC. CHEUNG, C.
dc.contributor.authorCHIANG, J.
dc.contributor.authorCIPRINI, S.
dc.contributor.authorCLAUS, R.
hal.structure.identifierLaboratoire de physique et chimie de l'environnement [LPCE]
hal.structure.identifierUnité Scientifique de la Station de Nançay [USN]
dc.contributor.authorCOGNARD, Ismaël
hal.structure.identifierLaboratoire de Physique Théorique et Astroparticules [LPTA]
dc.contributor.authorCOHEN-TANUGI, J.
dc.contributor.authorR. COMINSKY, L.
dc.contributor.authorCONRAD, J.
dc.contributor.authorD. DERMER, C.
dc.contributor.authorDE ANGELIS, A.
dc.contributor.authorDE LUCA, A.
dc.contributor.authorDE PALMA, F.
dc.contributor.authorW. DIGEL, S.
dc.contributor.authorDO COUTO E SILVA, E.
dc.contributor.authorS. DRELL, P.
dc.contributor.authorDUBOIS, R.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorDUMORA, D.
dc.contributor.authorESPINOZA, C.
hal.structure.identifierLaboratoire de Physique Théorique et Astroparticules [LPTA]
dc.contributor.authorFARNIER, C.
dc.contributor.authorFAVUZZI, C.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorJ. FEGAN, S.
dc.contributor.authorC. FERRARA, E.
dc.contributor.authorB. FOCKE, W.
dc.contributor.authorFRAILIS, M.
dc.contributor.authorC. C. FREIRE, P.
dc.contributor.authorFUKAZAWA, Y.
dc.contributor.authorFUNK P. FUSCO, S.
dc.contributor.authorGARGANO, F.
dc.contributor.authorGASPARRINI, D.
dc.contributor.authorGEHRELS, N.
dc.contributor.authorGERMANI, S.
dc.contributor.authorGIAVITTO, G.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorGIEBELS, B.
dc.contributor.authorGIGLIETTO, N.
dc.contributor.authorGIORDANO, F.
dc.contributor.authorGLANZMAN, T.
dc.contributor.authorGODFREY, G.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorA. GRENIER, I.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGRONDIN, M.-H.
dc.contributor.authorE. GROVE, J.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGUILLEMOT, L.
dc.contributor.authorGUIRIEC, S.
dc.contributor.authorHANABATA, Y.
dc.contributor.authorK. HARDING, A.
dc.contributor.authorHAYASHIDA, M.
dc.contributor.authorHAYS, E.
dc.contributor.authorE. HUGHES, R.
dc.contributor.authorJOHANNESSON, G.
dc.contributor.authorS. JOHNSON, A.
dc.contributor.authorP. JOHNSON, R.
dc.contributor.authorJ. JOHNSON, T.
dc.contributor.authorN. JOHNSON, W.
dc.contributor.authorJOHNSTON, S.
dc.contributor.authorKAMAE, T.
dc.contributor.authorKATAGIRI, H.
dc.contributor.authorKATAOKA, J.
dc.contributor.authorKAWAI, N.
dc.contributor.authorKERR, M.
hal.structure.identifierCentre d'étude spatiale des rayonnements [CESR]
dc.contributor.authorKNÖDLSEDER, Jürgen
dc.contributor.authorL. KOCIAN, M.
dc.contributor.authorKRAMER, M.
dc.contributor.authorKUEHN, F.
dc.contributor.authorKUSS, M.
dc.contributor.authorLANDE, J.
dc.contributor.authorLATRONICO, L.
dc.contributor.authorLEE, S.-H.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorLEMOINE-GOUMARD, M.
dc.contributor.authorLONGO, F.
dc.contributor.authorLOPARCO, F.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorLOTT, B.
dc.contributor.authorN. LOVELLETTE, M.
dc.contributor.authorLUBRANO, P.
dc.contributor.authorG. LYNE, A.
dc.contributor.authorMAKEEV, A.
dc.contributor.authorMARELLI, M.
dc.contributor.authorN. MAZZIOTTA, M.
dc.contributor.authorE. MCENERY, J.
dc.contributor.authorMEURER, C.
dc.contributor.authorF. MICHELSON, P.
dc.contributor.authorMITTHUMSIRI, W.
dc.contributor.authorMIZUNO, T.
dc.contributor.authorA. MOISEEV, A.
dc.contributor.authorMONTE, C.
dc.contributor.authorE. MONZANI, M.
dc.contributor.authorMORETTI, E.
dc.contributor.authorMORSELLI, A.
dc.contributor.authorV. MOSKALENKO, I.
dc.contributor.authorMURGIA, S.
dc.contributor.authorNAKAMORI, T.
dc.contributor.authorL. NOLAN, P.
dc.contributor.authorP. NORRIS, J.
dc.contributor.authorNOUTSOS, A.
hal.structure.identifierLaboratoire de Physique Théorique et Astroparticules [LPTA]
dc.contributor.authorNUSS, E.
dc.contributor.authorOHSUGI, T.
dc.contributor.authorOMODEI, N.
dc.contributor.authorORLANDO, E.
dc.contributor.authorF. ORMES, J.
dc.contributor.authorOZAKI, M.
dc.contributor.authorPANEQUE, D.
dc.contributor.authorH. PANETTA, J.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorPARENT, D.
hal.structure.identifierLaboratoire de Physique Théorique et Astroparticules [LPTA]
dc.contributor.authorPELASSA, V.
dc.contributor.authorPEPE, M.
dc.contributor.authorPESCE-ROLLINS, M.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorPIERBATTISTA, M.
hal.structure.identifierLaboratoire de Physique Théorique et Astroparticules [LPTA]
dc.contributor.authorPIRON, F.
dc.contributor.authorPORTER, T.A.
dc.contributor.authorRAINO, S.
dc.contributor.authorRANDO, R.
dc.contributor.authorS. RAY, P.
dc.contributor.authorRAZZANO, M.
dc.contributor.authorREIMER, A.
dc.contributor.authorREIMER, O.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorREPOSEUR, T.
dc.contributor.authorRITZ, S.
dc.contributor.authorS. ROCHESTER, L.
dc.contributor.authorY. RODRIGUEZ, A.
dc.contributor.authorW. ROMANI, R.
dc.contributor.authorROTH, M.
dc.contributor.authorRYDE, F.
dc.contributor.authorF.-W. SADROZINSKI, H.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorSANCHEZ, D.
dc.contributor.authorSANDER, A.
dc.contributor.authorM. SAZ PARKINSON, P.
dc.contributor.authorD. SCARGLE, J.
dc.contributor.authorSGRO, C.
dc.contributor.authorJ. SISKIND, E.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorSMITH, David Stanley
dc.contributor.authorD. SMITH, P.
dc.contributor.authorSPANDRE, G.
dc.contributor.authorSPINELLI, P.
dc.contributor.authorW. STAPPERS, B.
dc.contributor.authorS. STRICKMAN, M.
dc.contributor.authorJ. SUSON, D.
dc.contributor.authorTAJIMA, H.
dc.contributor.authorTAKAHASHI, H.
dc.contributor.authorTANAKA, T.
dc.contributor.authorB. THAYER, J.
dc.contributor.authorG. THAYER, J.
hal.structure.identifierLaboratoire de physique et chimie de l'environnement [LPCE]
hal.structure.identifierUnité Scientifique de la Station de Nançay [USN]
dc.contributor.authorTHEUREAU, G.
dc.contributor.authorJ. THOMPSON, D.
dc.contributor.authorE. THORSETT, S.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorTIBALDO, L.
dc.contributor.authorF. TORRES, D.
dc.contributor.authorTOSTI, G.
dc.contributor.authorTRAMACERE, A.
dc.contributor.authorUCHIYAMA, Y.
dc.contributor.authorL. USHER, T.
dc.contributor.authorVAN ETTEN, A.
dc.contributor.authorVASILEIOU, V.
hal.structure.identifierCentre d'étude spatiale des rayonnements [CESR]
dc.contributor.authorVILCHEZ, N.
dc.contributor.authorVITALE, V.
dc.contributor.authorP. WAITE, A.
dc.contributor.authorWALLACE, E.
dc.contributor.authorWANG, P.
dc.contributor.authorWATTERS, K.
dc.contributor.authorWELTEVREDE, P.
dc.contributor.authorL. WINER, B.
dc.contributor.authorS. WOOD, K.
dc.contributor.authorYLINEN, T.
dc.contributor.authorZIEGLER, M.
dc.date.issued2010-01-10
dc.identifier.issn0004-637X
dc.description.abstractEnWe report on γ -ray observations of the Crab Pulsar and Nebula using 8 months of survey data with the Fermi Large Area Telescope (LAT). The high quality light curve obtained using the ephemeris provided by the Nan¸cay and Jodrell Bank radio telescopes shows two main peaks stable in phase with energy. The first γ -ray peak leads the radio main pulse by (281 ± 12 ± 21) μs, giving new constraints on the production site of non-thermal emission in pulsar magnetospheres. The first uncertainty is due to γ -ray statistics, and the second arises from the rotation parameters. The improved sensitivity and the unprecedented statistics afforded by the LAT enable precise measurement of the Crab Pulsar spectral parameters: cut-off energy at Ec = (5.8 ± 0.5 ± 1.2) GeV, spectral index of Γ = (1.97 ± 0.02 ± 0.06) and integral photon flux above 100 MeV of (2.09 ± 0.03 ± 0.18) × 10−6 cm−2 s−1. The first errors represent the statistical error on the fit parameters, while the second ones are the systematic uncertainties. Pulsed γ -ray photons are observed up to ∼20 GeV which precludes emission near the stellar surface, below altitudes of around 4–5 stellar radii in phase intervals encompassing the two main peaks. A detailed phase-resolved spectral analysis is also performed: the hardest emission from the Crab Pulsar comes from the bridge region between the two γ -ray peaks while the softest comes from the falling edge of the second peak. The spectrum of the nebula in the energy range 100 MeV–300 GeV is well described by the sum of two power laws of indices Γsync = (3.99 ± 0.12 ± 0.08) and ΓIC = (1.64 ± 0.05 ± 0.07), corresponding to the falling edge of the synchrotron and the rising edge of the inverse Compton (IC) components, respectively. This latter, which links up naturally with the spectral data points of Cherenkov experiments, is well reproduced via IC scattering from standard magnetohydrodynamic nebula models, and does not require any additional radiation mechanism.
dc.language.isoen
dc.publisherAmerican Astronomical Society
dc.subject.enpulsars: individual (Crab)
dc.subject.ensupernova remnants
dc.subject.engamma rays: observations
dc.subject.enISM: individual (Crab Nebula)
dc.title.enFermi Large Area Telescope observations of the Crab pulsar and Nebula
dc.typeArticle de revue
dc.identifier.doi10.1088/0004-637X/708/2/1254
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE]
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE]
bordeaux.journalThe Astrophysical Journal
bordeaux.page1254-1267
bordeaux.volume708
bordeaux.peerReviewedoui
hal.identifierin2p3-00453756
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-00453756v1
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