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dc.contributor.authorACKERMANN, M.
dc.contributor.authorAJELLO, M.
dc.contributor.authorALBERT, A.
dc.contributor.authorALLAFORT, A.
dc.contributor.authorBALDINI, L.
dc.contributor.authorBARBIELLINI, G.
dc.contributor.authorBASTIERI, D.
dc.contributor.authorBECHTOL, K.
dc.contributor.authorBELLAZZINI, R.
dc.contributor.authorBLANDFORD, R.D.
dc.contributor.authorBLOOM, E.D.
dc.contributor.authorBONAMENTE, E.
dc.contributor.authorBOTTACINI, E.
dc.contributor.authorBOUVIER, A.
dc.contributor.authorBRANDT, T.J.
dc.contributor.authorBRIGIDA, M.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorBRUEL, P.
dc.contributor.authorBUEHLER, R.
dc.contributor.authorBUSON, S.
dc.contributor.authorCALIANDRO, G.A.
dc.contributor.authorCAMERON, R.A.
dc.contributor.authorCARAVEO, P.A.
dc.contributor.authorCECCHI, C.
dc.contributor.authorCHARLES, E.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorCHAVES, R.C.G.
dc.contributor.authorCHEKHTMAN, A.
dc.contributor.authorCHIANG, J.
dc.contributor.authorCHIARO, G.
dc.contributor.authorCIPRINI, S.
dc.contributor.authorCLAUS, R.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorCOHEN-TANUGI, J.
dc.contributor.authorCONRAD, J.
dc.contributor.authorCUTINI, S.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorDALTON, M.
dc.contributor.authorD'AMMANDO, F.
dc.contributor.authorDE ANGELIS, A.
dc.contributor.authorDE PALMA, F.
dc.contributor.authorDERMER, C.D.
dc.contributor.authorDIGEL, S.W.
dc.contributor.authorDI VENERE, L.
dc.contributor.authorDO COUTO E SILVA, E.
dc.contributor.authorDRELL, P.S.
dc.contributor.authorDRLICA-WAGNER, A.
dc.contributor.authorFAVUZZI, C.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorFEGAN, S.J.
dc.contributor.authorFERRARA, E.C.
dc.contributor.authorFOCKE, W.B.
dc.contributor.authorFRANCKOWIAK, A.
dc.contributor.authorFUKAZAWA, Y.
dc.contributor.authorFUNK, S.
dc.contributor.authorFUSCO, P.
dc.contributor.authorGARGANO, F.
dc.contributor.authorGASPARRINI, D.
dc.contributor.authorGERMANI, S.
dc.contributor.authorGIGLIETTO, N.
dc.contributor.authorGIORDANO, F.
dc.contributor.authorGIROLETTI, M.
dc.contributor.authorGLANZMAN, T.
dc.contributor.authorGODFREY, G.
dc.contributor.authorGOMEZ-VARGAS, G.A.
hal.structure.identifierAstrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)]
dc.contributor.authorGRENIER, I.A.
dc.contributor.authorGROVE, J.E.
dc.contributor.authorGUIRIEC, S.
dc.contributor.authorGUSTAFSSON, M.
dc.contributor.authorHADASCH, D.
dc.contributor.authorHANABATA, Y.
dc.contributor.authorHARDING, A.K.
dc.contributor.authorHAYASHIDA, M.
dc.contributor.authorHAYASHI, K.
dc.contributor.authorHEWITT, J.W.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorHORAN, D.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorHOU, X.
dc.contributor.authorHUGHES, R.E.
dc.contributor.authorINOUE, Y.
dc.contributor.authorJACKSON, M.S.
dc.contributor.authorJOGLER, T.
dc.contributor.authorJOHANNESSON, G.
dc.contributor.authorJOHNSON, A.S.
dc.contributor.authorKAMAE, T.
dc.contributor.authorKAWANO, T.
hal.structure.identifierInstitut de recherche en astrophysique et planétologie [IRAP]
hal.structure.identifierUniversité Toulouse III - Paul Sabatier [UT3]
dc.contributor.authorKNODLSEDER, J.
dc.contributor.authorKUSS, M.
dc.contributor.authorLANDE, J.
dc.contributor.authorLARSSON, S.
dc.contributor.authorLATRONICO, L.
dc.contributor.authorLONGO, F.
dc.contributor.authorLOPARCO, F.
dc.contributor.authorLOVELLETTE, M.N.
dc.contributor.authorLUBRANO, P.
dc.contributor.authorMAYER, M.
dc.contributor.authorMAZZIOTTA, M.N.
dc.contributor.authorMCENERY, J.E.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorMEHAULT, J.
dc.contributor.authorMICHELSON, P.F.
dc.contributor.authorMITTHUMSIRI, W.
dc.contributor.authorMIZUNO, T.
dc.contributor.authorMOISEEV, A.A.
dc.contributor.authorMONTE, C.
dc.contributor.authorMONZANI, M.E.
dc.contributor.authorMORSELLI, A.
dc.contributor.authorMOSKALENKO, I.V.
dc.contributor.authorMURGIA, S.
dc.contributor.authorNEMMEN, R.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorNUSS, E.
dc.contributor.authorOHSUGI, T.
dc.contributor.authorOKUMURA, A.
dc.contributor.authorORIENTI, M.
dc.contributor.authorORLANDO, E.
dc.contributor.authorORMES, J.F.
dc.contributor.authorPANEQUE, D.
dc.contributor.authorPANETTA, J.H.
dc.contributor.authorPERKINS, J.S.
dc.contributor.authorPESCE-ROLLINS, M.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorPIRON, F.
dc.contributor.authorPIVATO, G.
dc.contributor.authorPORTER, T.A.
dc.contributor.authorRAINO, S.
dc.contributor.authorRANDO, R.
dc.contributor.authorRAZZANO, M.
dc.contributor.authorRAZZAQUE, S.
dc.contributor.authorREIMER, A.
dc.contributor.authorREIMER, O.
dc.contributor.authorRITZ, S.
dc.contributor.authorROTH, M.
dc.contributor.authorSCHAAL, M.
dc.contributor.authorSCHULZ, A.
dc.contributor.authorSGRO, C.
dc.contributor.authorSISKIND, E.J.
dc.contributor.authorSPANDRE, G.
dc.contributor.authorSPINELLI, P.
dc.contributor.authorSTRONG, A.W.
dc.contributor.authorTAKAHASHI, H.
dc.contributor.authorTAKEUCHI, Y.
dc.contributor.authorTHAYER, J.G.
dc.contributor.authorTHAYER, J.B.
dc.contributor.authorTHOMPSON, D.J.
dc.contributor.authorTIBALDO, L.
dc.contributor.authorTINIVELLA, M.
dc.contributor.authorTORRES, D.F.
dc.contributor.authorTOSTI, G.
dc.contributor.authorTROJA, E.
dc.contributor.authorTRONCONI, V.
dc.contributor.authorUSHER, T.L.
dc.contributor.authorVANDENBROUCKE, J.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorVASILEIOU, V.
dc.contributor.authorVIANELLO, G.
dc.contributor.authorVITALE, V.
dc.contributor.authorWERNER, M.
dc.contributor.authorWINER, B.L.
dc.contributor.authorWOOD, K.S.
dc.contributor.authorWOOD, M.
dc.contributor.authorYANG, Z.
dc.date.issued2014
dc.description.abstractEn<p>Recent accurate measurements of cosmic-ray (CR) species by ATIC-2, CREAM, and PAMELA reveal an unexpected hardening in the proton and He spectra above a few hundred GeV, a gradual softening of the spectra just below a few hundred GeV, and a harder spectrum of He compared to that of protons. These newly discovered features may offer a clue to the origin of high-energy CRs. We use the Fermi Large Area Telescope observations of the <inline-formula><mml:math display="inline"><mml:mrow><mml:mi>γ</mml:mi></mml:mrow></mml:math></inline-formula>-ray emission from Earth’s limb for an indirect measurement of the local spectrum of CR protons in the energy range <inline-formula><mml:math display="inline"><mml:mrow><mml:mrow><mml:mo>∼</mml:mo><mml:mn>90</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>GeV</mml:mi></mml:mrow><mml:mi>–</mml:mi><mml:mn>6</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>TeV</mml:mi></mml:mrow></mml:math></inline-formula> (derived from a photon energy range 15 GeV–1 TeV). Our analysis shows that single power law and broken power law spectra fit the data equally well and yield a proton spectrum with index <inline-formula><mml:math display="inline"><mml:mrow><mml:mn>2.68</mml:mn><mml:mo>±</mml:mo><mml:mn>0.04</mml:mn></mml:mrow></mml:math></inline-formula> and <inline-formula><mml:math display="inline"><mml:mrow><mml:mn>2.61</mml:mn><mml:mo>±</mml:mo><mml:mn>0.08</mml:mn></mml:mrow></mml:math></inline-formula> above <inline-formula><mml:math display="inline"><mml:mrow><mml:mo>∼</mml:mo><mml:mn>200</mml:mn><mml:mtext> </mml:mtext><mml:mtext> </mml:mtext><mml:mi>GeV</mml:mi></mml:mrow></mml:math></inline-formula>, respectively.</p>
dc.language.isoen
dc.subject.en96.50.sb
dc.subject.en95.85.Pw
dc.subject.en95.85.Ry
dc.subject.en98.70.Sa
dc.subject.enp: spectrum
dc.subject.encosmic radiation: spectrum
dc.subject.enphoton: energy
dc.subject.enhelium: spectrum
dc.subject.engamma ray: emission
dc.subject.enGLAST
dc.subject.enPAMELA
dc.subject.enCREAM
dc.title.enInferred Cosmic-Ray Spectrum from Fermi Large Area Telescope γ-Ray Observations of Earth’s Limb
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevLett.112.151103
dc.subject.halPhysique [physics]/Astrophysique [astro-ph]
dc.subject.halPhysique [physics]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv1403.5372
bordeaux.journalPhys.Rev.Lett.
bordeaux.page151103
bordeaux.volume112
bordeaux.peerReviewedoui
hal.identifierhal-02017125
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02017125v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Phys.Rev.Lett.&amp;rft.date=2014&amp;rft.volume=112&amp;rft.spage=151103&amp;rft.epage=151103&amp;rft.au=ACKERMANN,%20M.&amp;AJELLO,%20M.&amp;ALBERT,%20A.&amp;ALLAFORT,%20A.&amp;BALDINI,%20L.&amp;rft.genre=article


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