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Discovery of variable VHE gamma-ray emission from the binary system 1FGL J1018.6-5856

dc.contributor.authorABRAMOWSKI, A.
dc.contributor.authorAHARONIAN, F.
dc.contributor.authorBENKHALI, F. Ait
dc.contributor.authorAKHPERJANIAN, A. G.
dc.contributor.authorANGÜNER, E. O.
dc.contributor.authorBACKES, M.
dc.contributor.authorBALZER, Agnès
dc.contributor.authorBECHERINI, Y.
dc.contributor.authorTJUS, J. Becker
dc.contributor.authorBERGE, D.
dc.contributor.authorBERNHARD, S.
dc.contributor.authorBERNLÖHR, K.
dc.contributor.authorBIRSIN, E.
dc.contributor.authorBLACKWELL, R.
dc.contributor.authorBÖTTCHER, M.
dc.contributor.authorBOISSON, C.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorBOLMONT, J.
dc.contributor.authorBORDAS, P.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorBREGEON, J.
dc.contributor.authorBRUN, F.
dc.contributor.authorBRUN, P.
dc.contributor.authorBRYAN, M.
dc.contributor.authorBULIK, T.
hal.structure.identifierCentre de Physique des Particules de Marseille [CPPM]
dc.contributor.authorCARR, J.
dc.contributor.authorCASANOVA, S.
dc.contributor.authorCHAKRABORTY, N.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorCHALME-CALVET, R.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorCHAVES, R. C. G.
dc.contributor.authorCHEN, A.
dc.contributor.authorCHRÉTIEN, M.
dc.contributor.authorCOLAFRANCESCO, S.
dc.contributor.authorCOLOGNA, G.
dc.contributor.authorCONRAD, J.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorCOUTURIER, C.
dc.contributor.authorCUI, Y.
dc.contributor.authorDAVIDS, I. D.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorDEGRANGE, B.
dc.contributor.authorDEIL, C.
dc.contributor.authorDEWILT, P.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorDJANNATI-ATAÏ, A.
dc.contributor.authorDOMAINKO, W.
dc.contributor.authorDONATH, A.
dc.contributor.authorDRURY, L. O'C.
dc.contributor.authorDUBUS, G.
dc.contributor.authorDUTSON, K.
dc.contributor.authorDYKS, J.
dc.contributor.authorDYRDA, M.
dc.contributor.authorEDWARDS, T.
dc.contributor.authorEGBERTS, K.
dc.contributor.authorEGER, P.
hal.structure.identifierCentre de Physique des Particules de Marseille [CPPM]
dc.contributor.authorERNENWEIN, J.-P.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorESPIGAT, P.
dc.contributor.authorFARNIER, C.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorFEGAN, S.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorFEINSTEIN, F.
dc.contributor.authorFERNANDES, M. V.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorFERNANDEZ, D.
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.authorFÖRSTER, A.
dc.contributor.authorFÜSSLING, M.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorGABICI, S.
dc.contributor.authorGAJDUS, M.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorGALLANT, Y. A.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorGARRIGOUX, T.
dc.contributor.authorGIAVITTO, G.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorGIEBELS, B.
dc.contributor.authorGLICENSTEIN, J. F.
dc.contributor.authorGOTTSCHALL, D.
dc.contributor.authorGOYAL, A.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorGRONDIN, M. -H.
dc.contributor.authorGRUDZIŃSKA, M.
dc.contributor.authorHADASCH, D.
dc.contributor.authorHÄFFNER, S.
dc.contributor.authorHAHN, J.
dc.contributor.authorHAWKES, J.
dc.contributor.authorHEINZELMANN, G.
dc.contributor.authorHENRI, G.
dc.contributor.authorHERMANN, G.
dc.contributor.authorHERVET, O.
dc.contributor.authorHILLERT, A.
dc.contributor.authorHINTON, J. A.
dc.contributor.authorHOFMANN, W.
dc.contributor.authorHOFVERBERG, P.
dc.contributor.authorHOISCHEN, C.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorHOLLER, M.
dc.contributor.authorHORNS, D.
dc.contributor.authorIVASCENKO, A.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorJACHOLKOWSKA, A.
dc.contributor.authorJAHN, C.
dc.contributor.authorJAMROZY, M.
dc.contributor.authorJANIAK, M.
dc.contributor.authorJANKOWSKY, F.
dc.contributor.authorJUNG-RICHARDT, I.
dc.contributor.authorKASTENDIECK, M. A.
dc.contributor.authorKATARZYŃSKI, K.
dc.contributor.authorKATZ, U.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorKERSZBERG, D.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorKHÉLIFI, B.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorKIEFFER, Michel
dc.contributor.authorKLEPSER, S.
dc.contributor.authorKLOCHKOV, D.
dc.contributor.authorKLUŹNIAK, W.
dc.contributor.authorKOLITZUS, D.
dc.contributor.authorKOMIN, Nu.
dc.contributor.authorKOSACK, K.
dc.contributor.authorKRAKAU, S.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorKRAYZEL, F.
dc.contributor.authorKRÜGER, P. P.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
dc.contributor.authorLAFFON, H.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorLAMANNA, G.
dc.contributor.authorLAU, J.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorLEFAUCHEUR, J.
dc.contributor.authorLEFRANC, V.
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]
dc.contributor.authorLENAIN, J. -P.
dc.contributor.authorLOHSE, T.
dc.contributor.authorLOPATIN, A.
dc.contributor.authorLU, C. -C.
dc.contributor.authorLUI, R.
dc.contributor.authorMARANDON, V.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorMARCOWITH, Alexandre
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorMARIAUD, C.
dc.contributor.authorMARX, R.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorMAURIN, G.
dc.contributor.authorMAXTED, N.
dc.contributor.authorMAYER, M.
dc.contributor.authorMEINTJES, P. J.
dc.contributor.authorMENZLER, U.
dc.contributor.authorMEYER, M.
dc.contributor.authorMITCHELL, A. M. W.
dc.contributor.authorMODERSKI, R.
dc.contributor.authorMOHAMED, M.
dc.contributor.authorMORÅ, K.
dc.contributor.authorMOULIN, Emmanuel
dc.contributor.authorMURACH, T.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorDE NAUROIS, M.
dc.contributor.authorNIEMIEC, J.
dc.contributor.authorOAKES, L.
dc.contributor.authorODAKA, H.
dc.contributor.authorÖTTL, S.
dc.contributor.authorOHM, S.
dc.contributor.authorWILHELMI, E. De Oña
dc.contributor.authorOPITZ, B.
dc.contributor.authorOSTROWSKI, M.
dc.contributor.authorOYA, I.
dc.contributor.authorPANTER, M.
dc.contributor.authorPARSONS, R. D.
dc.contributor.authorARRIBAS, M. Paz
dc.contributor.authorPEKEUR, N. W.
dc.contributor.authorPELLETIER, G.
dc.contributor.authorPETRUCCI, P. -O.
dc.contributor.authorPEYAUD, B.
dc.contributor.authorPITA, S.
dc.contributor.authorPOON, H.
dc.contributor.authorPROKOPH, H.
dc.contributor.authorPÜHLHOFER, G.
dc.contributor.authorPUNCH, M.
dc.contributor.authorQUIRRENBACH, A.
dc.contributor.authorRAAB, S.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorREICHARDT, I.
dc.contributor.authorREIMER, A.
dc.contributor.authorREIMER, O.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorRENAUD, Matthieu
dc.contributor.authorREYES, R. De Los
dc.contributor.authorRIEGER, F.
dc.contributor.authorROMOLI, C.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorROSIER-LEES, S.
dc.contributor.authorROWELL, G.
dc.contributor.authorRUDAK, B.
dc.contributor.authorRULTEN, C. B.
dc.contributor.authorSAHAKIAN, V.
dc.contributor.authorSALEK, D.
dc.contributor.authorSANCHEZ, D. A.
dc.contributor.authorSANTANGELO, A.
dc.contributor.authorSASAKI, M.
dc.contributor.authorSCHLICKEISER, R.
dc.contributor.authorSCHÜSSLER, F.
dc.contributor.authorSCHULZ, A.
dc.contributor.authorSCHWANKE, U.
dc.contributor.authorSCHWEMMER, S.
dc.contributor.authorSEYFFERT, A. S.
dc.contributor.authorSIMONI, R.
dc.contributor.authorSOL, H.
dc.contributor.authorSPANIER, F.
dc.contributor.authorSPENGLER, G.
dc.contributor.authorSPIES, F.
dc.contributor.authorSTAWARZ, Ł.
dc.contributor.authorSTEENKAMP, R.
dc.contributor.authorSTEGMANN, C.
dc.contributor.authorSTINZING, F.
dc.contributor.authorSTYCZ, K.
dc.contributor.authorSUSHCH, I.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorTAVERNET, J. -P.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorTAVERNIER, T.
dc.contributor.authorTAYLOR, A. M.
hal.structure.identifierAstroParticule et Cosmologie [APC (UMR_7164)]
dc.contributor.authorTERRIER, R.
dc.contributor.authorTLUCZYKONT, M.
hal.structure.identifierLaboratoire d'Annecy de Physique des Particules [LAPP]
dc.contributor.authorTRICHARD, C.
dc.contributor.authorVALERIUS, K.
dc.contributor.authorVAN DER WALT, J.
dc.contributor.authorVAN ELDIK, C.
dc.contributor.authorVAN SOELEN, B.
hal.structure.identifierLaboratoire Univers et Particules de Montpellier [LUPM]
dc.contributor.authorVASILEIADIS, George
dc.contributor.authorVEH, J.
dc.contributor.authorVENTER, C.
dc.contributor.authorVIANA, A.
hal.structure.identifierLaboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE]
dc.contributor.authorVINCENT, P.
dc.contributor.authorVINK, J.
dc.contributor.authorVOISIN, F.
dc.contributor.authorVÖLK, H. J.
dc.contributor.authorVUILLAUME, T.
dc.contributor.authorWAGNER, S. J.
dc.contributor.authorWAGNER, P.
dc.contributor.authorWAGNER, R. M.
dc.contributor.authorWEIDINGER, M.
dc.contributor.authorWEITZEL, Q.
dc.contributor.authorWHITE, R.
dc.contributor.authorWIERZCHOLSKA, A.
dc.contributor.authorWILLMANN, P.
dc.contributor.authorWÖRNLEIN, A.
dc.contributor.authorWOUTERS, D.
dc.contributor.authorYANG, R.
dc.contributor.authorZABALZA, V.
hal.structure.identifierLaboratoire Leprince-Ringuet [LLR]
dc.contributor.authorZABOROV, D.
dc.contributor.authorZACHARIAS, M.
dc.contributor.authorZDZIARSKI, A. A.
dc.contributor.authorZECH, A.
dc.contributor.authorZEFI, F.
dc.contributor.authorŻYWUCKA, N.
dc.date.created2015
dc.date.issued2015
dc.identifier.issn0004-6361
dc.description.abstractEnRe-observations with the H.E.S.S. telescope array of the very-high-energy (VHE) source HESS J1018-589 A coincident with the Fermi-LAT $\gamma$-ray binary 1FGL J1018.6-5856 have resulted in a source detection significance of more than 9$\sigma$, and the detection of variability ($\chi^2$/$\nu$ of 238.3/155) in the emitted $\gamma$-ray flux. This variability confirms the association of HESS J1018-589 A with the high-energy $\gamma$-ray binary detected by Fermi-LAT, and also confirms the point-like source as a new very-high-energy binary system. The spectrum of HESS J1018-589 A is best fit with a power-law function with photon index $\Gamma = 2.20 \pm 0.14_{\rm stat} \pm 0.2_{\rm sys}$. Emission is detected up to ~20 TeV. The mean differential flux level is $(2.9 \pm 0.4)\times10^{-13}$ TeV$^{-1}$ cm$^{-2}$ s$^{-1}$ at 1 TeV, equivalent to ~1% of the flux from the Crab Nebula at the same energy. Variability is clearly detected in the night-by-night lightcurve. When folded on the orbital period of 16.58 days, the rebinned lightcurve peaks in phase with the observed X-ray and high-energy phaseograms. The fit of the H.E.S.S. phaseogram to a constant flux provides evidence of periodicity at the level of 3$\sigma$. The shape of the VHE phaseogram and measured spectrum suggest a low inclination, low eccentricity system with a modest impact from VHE $\gamma$-ray absorption due to pair production ($\tau$ < 1 at 300 GeV).
dc.language.isoen
dc.publisherEDP Sciences
dc.title.enDiscovery of variable VHE gamma-ray emission from the binary system 1FGL J1018.6-5856
dc.typeArticle de revue
dc.identifier.doi10.1051/0004-6361/201525699
dc.subject.halPlanète et Univers [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE]
dc.identifier.arxiv1503.02711
bordeaux.journalAstronomy and Astrophysics - A&A
bordeaux.pageA131
bordeaux.volume577
bordeaux.peerReviewedoui
hal.identifierin2p3-01139213
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-01139213v1
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