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dc.contributor.authorABDALLA, H.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorADAM, R.
dc.contributor.authorAHARONIAN, F.
dc.contributor.authorAIT BENKHALI, F.
hal.structure.identifierCentre de Physique des Particules de Marseille [CPPM]
dc.contributor.authorANGÜNER, E. O.
dc.contributor.authorARAKAWA, M.
dc.contributor.authorARCARO, C.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorARMAND, C.
dc.contributor.authorARMSTRONG, T.
dc.contributor.authorASHKAR, H.
dc.contributor.authorBACKES, M.
dc.contributor.authorBARBOSA MARTINS, V.
dc.contributor.authorBARNARD, M.
dc.contributor.authorBECHERINI, Y.
dc.contributor.authorBERGE, D.
dc.contributor.authorBERNLÖHR, K.
dc.contributor.authorBLACKWELL, R.
dc.contributor.authorBÖTTCHER, M.
hal.structure.identifierLaboratoire Univers et Théories [LUTH (UMR_8102)]
dc.contributor.authorBOISSON, C.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)]
dc.contributor.authorBOLMONT, J.
dc.contributor.authorBONNEFOY, S.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorBREGEON, J.
dc.contributor.authorBREUHAUS, M.
dc.contributor.authorBRUN, F.
dc.contributor.authorBRUN, P.
dc.contributor.authorBRYAN, M.
dc.contributor.authorBÜCHELE, M.
dc.contributor.authorBULIK, T.
dc.contributor.authorBYLUND, T.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)]
dc.contributor.authorCAROFF, S.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorCAROSI, A.
dc.contributor.authorCASANOVA, S.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)]
dc.contributor.authorCERRUTI, M.
dc.contributor.authorCHAND, T.
dc.contributor.authorCHANDRA, S.
dc.contributor.authorCHEN, A.
dc.contributor.authorCOLAFRANCESCO, S.
dc.contributor.authorCOTTER, G.
dc.contributor.authorCURYŁO, M.
dc.contributor.authorDAVIDS, I. D.
dc.contributor.authorDAVIES, J.
dc.contributor.authorDEIL, C.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorDEVIN, J.
dc.contributor.authorDEWILT, P.
dc.contributor.authorDIRSON, L.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorDJANNATI-ATAÏ, A.
hal.structure.identifierLaboratoire Univers et Théories [LUTH (UMR_8102)]
dc.contributor.authorDMYTRIIEV, A.
dc.contributor.authorDONATH, A.
dc.contributor.authorDOROSHENKO, V.
dc.contributor.authorDYKS, J.
dc.contributor.authorEGBERTS, K.
dc.contributor.authorEICHHORN, F.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)]
dc.contributor.authorEMERY, G.
hal.structure.identifierCentre de Physique des Particules de Marseille [CPPM]
dc.contributor.authorERNENWEIN, J. -P.
dc.contributor.authorESCHBACH, S.
dc.contributor.authorFEIJEN, K.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorFEGAN, S.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorFIASSON, A.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorFONTAINE, G.
dc.contributor.authorFUNK, S.
dc.contributor.authorFÜSSLING, M.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorGABICI, S.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorGALLANT, Y. A.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorGATÉ, F.
dc.contributor.authorGIAVITTO, G.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorGIUNTI, L.
dc.contributor.authorGLAWION, D.
dc.contributor.authorGLICENSTEIN, J. F.
dc.contributor.authorGOTTSCHALL, D.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGRONDIN, M. -H.
dc.contributor.authorHAHN, J.
dc.contributor.authorHAUPT, M.
dc.contributor.authorHEINZELMANN, G.
hal.structure.identifierInstitut de Planétologie et d'Astrophysique de Grenoble [IPAG]
dc.contributor.authorHENRI, G.
dc.contributor.authorHERMANN, G.
dc.contributor.authorHINTON, J. A.
dc.contributor.authorHOFMANN, W.
dc.contributor.authorHOISCHEN, C.
dc.contributor.authorHOLCH, T. L.
dc.contributor.authorHOLLER, M.
dc.contributor.authorHÖRBE, M.
dc.contributor.authorHORNS, D.
dc.contributor.authorHUBER, D.
dc.contributor.authorIWASAKI, H.
dc.contributor.authorJAMROZY, M.
dc.contributor.authorJANKOWSKY, D.
dc.contributor.authorJANKOWSKY, F.
dc.contributor.authorJARDIN-BLICQ, A.
dc.contributor.authorJOSHI, V.
dc.contributor.authorJUNG-RICHARDT, I.
dc.contributor.authorKASTENDIECK, M. A.
dc.contributor.authorKATARZYŃSKI, K.
dc.contributor.authorKATSURAGAWA, M.
dc.contributor.authorKATZ, U.
dc.contributor.authorKHANGULYAN, D.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorKHÉLIFI, B.
dc.contributor.authorKING, J.
dc.contributor.authorKLEPSER, S.
dc.contributor.authorKLUŹNIAK, W.
dc.contributor.authorKOMIN, Nu.
dc.contributor.authorKOSACK, K.
dc.contributor.authorKOSTUNIN, D.
dc.contributor.authorKRETER, M.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorLAMANNA, G.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorLEMIÈRE, A.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorLEMOINE-GOUMARD, M.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)]
dc.contributor.authorLENAIN, J. -P.
dc.contributor.authorLESER, E.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)]
dc.contributor.authorLEVY, C.
dc.contributor.authorLOHSE, T.
dc.contributor.authorLYPOVA, I.
dc.contributor.authorMACKEY, J.
dc.contributor.authorMAJUMDAR, J.
dc.contributor.authorMALYSHEV, D.
dc.contributor.authorMALYSHEV, D.
dc.contributor.authorMARANDON, V.
dc.contributor.authorMARCHEGIANI, P.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorMARCOWITH, A.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorMARES, A.
dc.contributor.authorMARTÍ-DEVESA, G.
dc.contributor.authorMARX, R.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorMAURIN, G.
dc.contributor.authorMEINTJES, P. J.
dc.contributor.authorMODERSKI, R.
dc.contributor.authorMOHAMED, M.
dc.contributor.authorMOHRMANN, L.
dc.contributor.authorMOORE, C.
dc.contributor.authorMORRIS, P.
dc.contributor.authorMOULIN, E.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorMULLER, J.
dc.contributor.authorMURACH, T.
dc.contributor.authorNAKASHIMA, S.
dc.contributor.authorNAKASHIMA, K.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorDE NAUROIS, M.
dc.contributor.authorNDIYAVALA, H.
dc.contributor.authorNIEDERWANGER, F.
dc.contributor.authorNIEMIEC, J.
dc.contributor.authorOAKES, L.
dc.contributor.authorO'BRIEN, P.
dc.contributor.authorODAKA, H.
dc.contributor.authorOHM, S.
dc.contributor.authorDE ONA WILHELMI, E.
dc.contributor.authorOSTROWSKI, M.
dc.contributor.authorPANTER, M.
dc.contributor.authorPARSONS, R. D.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)]
dc.contributor.authorPERENNES, C.
hal.structure.identifierInstitut de Planétologie et d'Astrophysique de Grenoble [IPAG]
dc.contributor.authorPETRUCCI, P. -O.
dc.contributor.authorPEYAUD, B.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorPIEL, Q.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorPITA, S.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorPOIREAU, V.
dc.contributor.authorPRIYANA NOEL, A.
dc.contributor.authorPROKHOROV, D. A.
dc.contributor.authorPROKOPH, H.
dc.contributor.authorPÜHLHOFER, G.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorPUNCH, M.
dc.contributor.authorQUIRRENBACH, A.
dc.contributor.authorRAAB, S.
dc.contributor.authorRAUTH, R.
dc.contributor.authorREIMER, A.
dc.contributor.authorREIMER, O.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorREMY, Q.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorRENAUD, M.
dc.contributor.authorRIEGER, F.
dc.contributor.authorRINCHIUSO, L.
dc.contributor.authorROMOLI, C.
dc.contributor.authorROWELL, G.
dc.contributor.authorRUDAK, B.
dc.contributor.authorRUIZ-VELASCO, E.
dc.contributor.authorSAHAKIAN, V.
dc.contributor.authorSAILER, S.
dc.contributor.authorSAITO, S.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorSANCHEZ, D. A.
dc.contributor.authorSANTANGELO, A.
dc.contributor.authorSASAKI, M.
dc.contributor.authorSCALICI, M.
dc.contributor.authorSCHLICKEISER, R.
dc.contributor.authorSCHÜSSLER, F.
dc.contributor.authorSCHULZ, A.
dc.contributor.authorSCHUTTE, H. M.
dc.contributor.authorSCHWANKE, U.
dc.contributor.authorSCHWEMMER, S.
dc.contributor.authorSEGLAR-ARROYO, M.
dc.contributor.authorSENNIAPPAN, M.
dc.contributor.authorSEYFFERT, A. S.
dc.contributor.authorSHAFI, N.
dc.contributor.authorSHININGAYAMWE, K.
dc.contributor.authorSIMONI, R.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorSINHA, A.
hal.structure.identifierLaboratoire Univers et Théories [LUTH (UMR_8102)]
dc.contributor.authorSOL, H.
dc.contributor.authorSPECOVIUS, A.
dc.contributor.authorSPENCER, S.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorSPIR-JACOB, M.
dc.contributor.authorSTAWARZ, Ł.
dc.contributor.authorSTEENKAMP, R.
dc.contributor.authorSTEGMANN, C.
dc.contributor.authorSTEPPA, C.
dc.contributor.authorTAKAHASHI, T.
dc.contributor.authorTAVERNIER, T.
dc.contributor.authorTAYLOR, A. M.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorTERRIER, R.
dc.contributor.authorTIZIANI, D.
dc.contributor.authorTLUCZYKONT, M.
dc.contributor.authorTOMANKOVA, L.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorTRICHARD, C.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorTSIROU, M.
dc.contributor.authorTSUJI, N.
dc.contributor.authorTUFFS, R.
dc.contributor.authorUCHIYAMA, Y.
dc.contributor.authorVAN DER WALT, D. J.
dc.contributor.authorVAN ELDIK, C.
dc.contributor.authorVAN RENSBURG, C.
dc.contributor.authorVAN SOELEN, B.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorVASILEIADIS, G.
dc.contributor.authorVEH, J.
dc.contributor.authorVENTER, C.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)]
dc.contributor.authorVINCENT, P.
dc.contributor.authorVINK, J.
dc.contributor.authorVÖLK, H. J.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorVUILLAUME, T.
dc.contributor.authorWADIASINGH, Z.
dc.contributor.authorWAGNER, S. J.
dc.contributor.authorWATSON, J.
dc.contributor.authorWERNER, F.
dc.contributor.authorWHITE, R.
dc.contributor.authorWIERZCHOLSKA, A.
dc.contributor.authorYANG, R.
dc.contributor.authorYONEDA, H.
dc.contributor.authorZACHARIAS, M.
dc.contributor.authorZANIN, R.
dc.contributor.authorZDZIARSKI, A. A.
hal.structure.identifierLaboratoire Univers et Théories [LUTH (UMR_8102)]
dc.contributor.authorZECH, A.
dc.contributor.authorZORN, J.
dc.contributor.authorŻYWUCKA, N.
dc.date.accessioned2023-11-20T16:49:50Z
dc.date.available2023-11-20T16:49:50Z
dc.date.issued2020
dc.identifier.issn0004-6361
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/185067
dc.description.abstractEn<BR /> Aims: Colliding wind binary systems have long been suspected to be high-energy (HE; 100 MeV < E < 100 GeV) γ-ray emitters. η Car is the most prominent member of this object class and is confirmed to emit phase-locked HE γ rays from hundreds of MeV to ~100 GeV energies. This work aims to search for and characterise the very-high-energy (VHE; E >100 GeV) γ-ray emission from η Car around the last periastron passage in 2014 with the ground-based High Energy Stereoscopic System (H.E.S.S.). <BR /> Methods: The region around η Car was observed with H.E.S.S. between orbital phase p = 0.78-1.10, with a closer sampling at p ≈ 0.95 and p ≈ 1.10 (assuming a period of 2023 days). Optimised hardware settings as well as adjustments to the data reduction, reconstruction, and signal selection were needed to suppress and take into account the strong, extended, and inhomogeneous night sky background (NSB) in the η Car field of view. Tailored run-wise Monte-Carlo simulations (RWS) were required to accurately treat the additional noise from NSB photons in the instrument response functions. <BR /> Results: H.E.S.S. detected VHE γ-ray emission from the direction of η Car shortly before and after the minimum in the X-ray light-curve close to periastron. Using the point spread function provided by RWS, the reconstructed signal is point-like and the spectrum is best described by a power law. The overall flux and spectral index in VHE γ rays agree within statistical and systematic errors before and after periastron. The γ-ray spectrum extends up to at least ~400 GeV. This implies a maximum magnetic field in a leptonic scenario in the emission region of 0.5 Gauss. No indication for phase-locked flux variations is detected in the H.E.S.S. data.
dc.language.isoen
dc.publisherEDP Sciences
dc.subject.enastroparticle physics
dc.subject.enradiation mechanisms: non-thermal
dc.subject.enbinaries: general
dc.subject.enstars: individual: η Car
dc.subject.enstars: Wolf-Rayet
dc.subject.encosmic rays
dc.title.enDetection of very-high-energy γ-ray emission from the colliding wind binary η Car with H.E.S.S.
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201936761
dc.subject.halPlanète et Univers [physics]
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]
dc.identifier.arxiv2002.02336
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageA167
bordeaux.volume635
bordeaux.hal.laboratoriesCentre d'Études Nucléaires de Bordeaux Gradignan (CENBG)*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierinsu-03705219
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//insu-03705219v1
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