dc.contributor.author | ABDALLA, H. | |
dc.contributor.author | AHARONIAN, F. | |
dc.contributor.author | AIT BENKHALI, F. | |
hal.structure.identifier | Centre de Physique des Particules de Marseille [CPPM] | |
dc.contributor.author | ANGÜNER, E.O. | |
dc.contributor.author | ARAKAWA, M. | |
dc.contributor.author | ARCARO, C. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | ARMAND, C. | |
hal.structure.identifier | Laboratoire Univers et Théories [LUTH (UMR_8102)] | |
dc.contributor.author | ARRIETA, M. | |
dc.contributor.author | BACKES, M. | |
dc.contributor.author | BARNARD, M. | |
dc.contributor.author | BECHERINI, Y. | |
dc.contributor.author | BECKER TJUS, J. | |
dc.contributor.author | BERGE, D. | |
dc.contributor.author | BERNHARD, S. | |
dc.contributor.author | BERNLÖHR, K. | |
dc.contributor.author | BLACKWELL, R. | |
dc.contributor.author | BÖTTCHER, M. | |
hal.structure.identifier | Laboratoire Univers et Théories [LUTH (UMR_8102)] | |
dc.contributor.author | BOISSON, C. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | BOLMONT, J. | |
dc.contributor.author | BONNEFOY, S. | |
dc.contributor.author | BORDAS, P. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | BREGEON, J. | |
hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
dc.contributor.author | BRUN, F. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | BRUN, P. | |
dc.contributor.author | BRYAN, M. | |
dc.contributor.author | BÜCHELE, M. | |
dc.contributor.author | BULIK, T. | |
dc.contributor.author | BYLUND, T. | |
dc.contributor.author | CAPASSO, M. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | CAROFF, S. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | CAROSI, A. | |
dc.contributor.author | CASANOVA, S. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | CERRUTI, M. | |
dc.contributor.author | CHAKRABORTY, N. | |
dc.contributor.author | CHANDRA, S. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
hal.structure.identifier | Laboratoire de Physique Théorique de l'ENS [École Normale Supérieure] [LPTENS] | |
dc.contributor.author | CHAVES, R.C.G. | |
dc.contributor.author | CHEN, A. | |
dc.contributor.author | COLAFRANCESCO, S. | |
hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
dc.contributor.author | CONDON, B. | |
dc.contributor.author | DAVIDS, I.D. | |
dc.contributor.author | DEIL, C. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | DEVIN, J. | |
dc.contributor.author | DEWILT, P. | |
dc.contributor.author | DIRSON, L. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | DJANNATI-ATAÏ, A. | |
hal.structure.identifier | Laboratoire Univers et Théories [LUTH (UMR_8102)] | |
dc.contributor.author | DMYTRIIEV, A. | |
dc.contributor.author | DONATH, A. | |
dc.contributor.author | DOROSHENKO, V. | |
dc.contributor.author | DRURY, L.O'C. | |
dc.contributor.author | DYKS, J. | |
dc.contributor.author | EGBERTS, K. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | EMERY, G. | |
hal.structure.identifier | Centre de Physique des Particules de Marseille [CPPM] | |
dc.contributor.author | ERNENWEIN, J.-P. | |
dc.contributor.author | ESCHBACH, S. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | FEGAN, S. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | FIASSON, A. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | FONTAINE, G. | |
dc.contributor.author | FUNK, S. | |
dc.contributor.author | FÜSSLING, M. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | GABICI, S. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | GALLANT, Y.A. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | GATÉ, F. | |
dc.contributor.author | GIAVITTO, G. | |
dc.contributor.author | GLAWION, D. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | GLICENSTEIN, J.F. | |
dc.contributor.author | GOTTSCHALL, D. | |
hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
dc.contributor.author | GRONDIN, M.-H. | |
dc.contributor.author | HAHN, J. | |
dc.contributor.author | HAUPT, M. | |
dc.contributor.author | HEINZELMANN, G. | |
hal.structure.identifier | Institut de Planétologie et d'Astrophysique de Grenoble [IPAG] | |
dc.contributor.author | HENRI, G. | |
dc.contributor.author | HERMANN, G. | |
dc.contributor.author | HINTON, J.A. | |
dc.contributor.author | HOFMANN, W. | |
dc.contributor.author | HOISCHEN, C. | |
dc.contributor.author | HOLCH, T.L. | |
dc.contributor.author | HOLLER, M. | |
dc.contributor.author | HORNS, D. | |
dc.contributor.author | HUBER, D. | |
dc.contributor.author | IWASAKI, H. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | JACHOLKOWSKA, A. | |
dc.contributor.author | JAMROZY, M. | |
dc.contributor.author | JANKOWSKY, D. | |
dc.contributor.author | JANKOWSKY, F. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | JOUVIN, L. | |
dc.contributor.author | JUNG-RICHARDT, I. | |
dc.contributor.author | KASTENDIECK, M.A. | |
dc.contributor.author | KATARZYŃSKI, K. | |
dc.contributor.author | KATSURAGAWA, M. | |
dc.contributor.author | KATZ, U. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | KERSZBERG, D. | |
dc.contributor.author | KHANGULYAN, D. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | KHÉLIFI, B. | |
dc.contributor.author | KING, J. | |
dc.contributor.author | KLEPSER, S. | |
dc.contributor.author | KLUŹNIAK, W. | |
dc.contributor.author | KOMIN, Nu. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | KOSACK, K. | |
dc.contributor.author | KRAKAU, S. | |
dc.contributor.author | KRAUS, M. | |
dc.contributor.author | KRÜGER, P.P. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | LAMANNA, G. | |
dc.contributor.author | LAU, J. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | LEFAUCHEUR, J. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | LEMIÈRE, A. | |
hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
dc.contributor.author | LEMOINE-GOUMARD, M. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | LENAIN, J.-P. | |
dc.contributor.author | LESER, E. | |
dc.contributor.author | LOHSE, T. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | LORENTZ, M. | |
dc.contributor.author | LÓPEZ-COTO, R. | |
dc.contributor.author | LYPOVA, I. | |
dc.contributor.author | MALYSHEV, D. | |
dc.contributor.author | MARANDON, V. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | MARCOWITH, Alexandre | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | MARIAUD, C. | |
dc.contributor.author | MARTÍ-DEVESA, G. | |
dc.contributor.author | MARX, R. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | MAURIN, G. | |
dc.contributor.author | MEINTJES, P.J. | |
dc.contributor.author | MITCHELL, A.M.W. | |
dc.contributor.author | MODERSKI, R. | |
dc.contributor.author | MOHAMED, M. | |
dc.contributor.author | MOHRMANN, L. | |
hal.structure.identifier | Institut de Recherches sur les lois Fondamentales de l'Univers [IRFU] | |
dc.contributor.author | MOULIN, E. | |
dc.contributor.author | MURACH, T. | |
dc.contributor.author | NAKASHIMA, S. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | DE NAUROIS, M. | |
dc.contributor.author | NDIYAVALA, H. | |
dc.contributor.author | NIEDERWANGER, F. | |
dc.contributor.author | NIEMIEC, J. | |
dc.contributor.author | OAKES, L. | |
dc.contributor.author | O'BRIEN, P. | |
dc.contributor.author | ODAKA, H. | |
dc.contributor.author | OHM, S. | |
dc.contributor.author | OSTROWSKI, M. | |
dc.contributor.author | OYA, I. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | PADOVANI, M. | |
dc.contributor.author | PANTER, M. | |
dc.contributor.author | PARSONS, R.D. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | PERENNES, C. | |
hal.structure.identifier | Institut de Planétologie et d'Astrophysique de Grenoble [IPAG] | |
dc.contributor.author | PETRUCCI, P.-O. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | PEYAUD, B. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | PIEL, Q. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | PITA, S. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | POIREAU, V. | |
dc.contributor.author | PRIYANA NOEL, A. | |
dc.contributor.author | PROKHOROV, D.A. | |
dc.contributor.author | PROKOPH, H. | |
dc.contributor.author | PÜHLHOFER, G. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | PUNCH, M. | |
dc.contributor.author | QUIRRENBACH, A. | |
dc.contributor.author | RAAB, S. | |
dc.contributor.author | RAUTH, R. | |
dc.contributor.author | REIMER, A. | |
dc.contributor.author | REIMER, O. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | RENAUD, Matthieu | |
dc.contributor.author | RIEGER, F. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | RINCHIUSO, L. | |
dc.contributor.author | ROMOLI, C. | |
dc.contributor.author | ROWELL, G. | |
dc.contributor.author | RUDAK, B. | |
dc.contributor.author | RUIZ-VELASCO, E. | |
dc.contributor.author | SAHAKIAN, V. | |
dc.contributor.author | SAITO, S. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | SANCHEZ, D.A. | |
dc.contributor.author | SANTANGELO, A. | |
dc.contributor.author | SASAKI, M. | |
dc.contributor.author | SCHLICKEISER, R. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | SCHÜSSLER, F. | |
dc.contributor.author | SCHULZ, A. | |
dc.contributor.author | SCHWANKE, U. | |
dc.contributor.author | SCHWEMMER, S. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | SEGLAR-ARROYO, M. | |
dc.contributor.author | SENNIAPPAN, M. | |
dc.contributor.author | SEYFFERT, A.S. | |
dc.contributor.author | SHAFI, N. | |
dc.contributor.author | SHILON, I. | |
dc.contributor.author | SHININGAYAMWE, K. | |
dc.contributor.author | SIMONI, R. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | SINHA, A. | |
hal.structure.identifier | Laboratoire Univers et Théories [LUTH (UMR_8102)] | |
dc.contributor.author | SOL, H. | |
dc.contributor.author | SPANIER, F. | |
dc.contributor.author | SPECOVIUS, A. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | SPIR-JACOB, M. | |
dc.contributor.author | STEENKAMP, R. | |
dc.contributor.author | STEGMANN, C. | |
dc.contributor.author | STEPPA, C. | |
dc.contributor.author | TAKAHASHI, T. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | TAVERNET, J.-P. | |
hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
dc.contributor.author | TAVERNIER, T. | |
dc.contributor.author | TAYLOR, A.M. | |
hal.structure.identifier | AstroParticule et Cosmologie [APC (UMR_7164)] | |
dc.contributor.author | TERRIER, R. | |
dc.contributor.author | TIBALDO, L. | |
dc.contributor.author | TIZIANI, D. | |
dc.contributor.author | TLUCZYKONT, M. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | TRICHARD, C. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | TSIROU, M. | |
dc.contributor.author | TSUJI, N. | |
dc.contributor.author | TUFFS, R. | |
dc.contributor.author | UCHIYAMA, Y. | |
dc.contributor.author | VAN DER WALT, D.J. | |
dc.contributor.author | VAN ELDIK, C. | |
dc.contributor.author | VAN RENSBURG, C. | |
dc.contributor.author | VAN SOELEN, B. | |
hal.structure.identifier | Laboratoire Univers et Particules de Montpellier [LUPM] | |
dc.contributor.author | VASILEIADIS, George | |
dc.contributor.author | VEH, J. | |
dc.contributor.author | VENTER, C. | |
hal.structure.identifier | Laboratoire de Physique Nucléaire et de Hautes Énergies [LPNHE (UMR_7585)] | |
dc.contributor.author | VINCENT, P. | |
dc.contributor.author | VINK, J. | |
dc.contributor.author | VOISIN, F. | |
dc.contributor.author | VÖLK, H.J. | |
hal.structure.identifier | Laboratoire d'Annecy de Physique des Particules [LAPP] | |
dc.contributor.author | VUILLAUME, T. | |
dc.contributor.author | WADIASINGH, Z. | |
dc.contributor.author | WAGNER, S.J. | |
dc.contributor.author | WAGNER, R.M. | |
dc.contributor.author | WHITE, R. | |
dc.contributor.author | WIERZCHOLSKA, A. | |
dc.contributor.author | YANG, R. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | ZABOROV, D. | |
dc.contributor.author | ZACHARIAS, M. | |
dc.contributor.author | ZANIN, R. | |
dc.contributor.author | ZDZIARSKI, A.A. | |
hal.structure.identifier | Laboratoire Univers et Théories [LUTH (UMR_8102)] | |
dc.contributor.author | ZECH, A. | |
hal.structure.identifier | Laboratoire Leprince-Ringuet [LLR] | |
dc.contributor.author | ZEFI, F. | |
dc.contributor.author | ZIEGLER, A. | |
dc.contributor.author | ZORN, J. | |
dc.contributor.author | ŻYWUCKA, N. | |
dc.contributor.author | KERR, M. | |
dc.contributor.author | JOHNSTON, S. | |
dc.contributor.author | SHANNON, R.M. | |
dc.date.issued | 2018 | |
dc.identifier.issn | 0004-6361 | |
dc.description.abstractEn | Aims. We report on the measurement and investigation of pulsed high-energy γ-ray emission from the Vela pulsar, PSR B0833−45, based on observations with the largest telescope of H.E.S.S., CT5, in monoscopic mode, and on data obtained with the Fermi-LAT.Methods. Data from 40.3 h of observations carried out with the H.E.S.S. II array from 2013 to 2015 have been used. A dedicated very low-threshold event reconstruction and analysis pipeline was developed to achieve the lowest possible energy threshold. Eight years of Fermi-LAT data were analysed and also used as reference to validate the CT5 telescope response model and analysis methods.Results. A pulsed γ-ray signal at a significance level of more than 15σ is detected from the P2 peak of the Vela pulsar light curve. Of a total of 15 835 events, more than 6000 lie at an energy below 20 GeV, implying a significant overlap between H.E.S.S. II-CT5 and the Fermi-LAT. While the investigation of the pulsar light curve with the LAT confirms characteristics previously known up to 20 GeV in the tens of GeV energy range, CT5 data show a change in the pulse morphology of P2, i.e. an extreme sharpening of its trailing edge, together with the possible onset of a new component at 3.4σ significance level. Assuming a power-law model for the P2 spectrum, an excellent agreement is found for the photon indices (Γ ≃ 4.1) obtained with the two telescopes above 10 GeV and an upper bound of 8% is derived on the relative offset between their energy scales. Using data from both instruments, it is shown however that the spectrum of P2 in the 10–100 GeV has a pronounced curvature; this is a confirmation of the sub-exponential cut-off form found at lower energies with the LAT. This is further supported by weak evidence of an emission above 100 GeV obtained with CT5. In contrast, converging indications are found from both CT5 and LAT data for the emergence of a hard component above 50 GeV in the leading wing (LW2) of P2, which possibly extends beyond 100 GeV.Conclusions. The detection demonstrates the performance and understanding of CT5 from 100 GeV down to the sub-20 GeV domain, i.e. unprecedented low energy for ground-based γ-ray astronomy. The extreme sharpening of the trailing edge of the P2 peak found in the H.E.S.S. II light curve of the Vela pulsar and the possible extension beyond 100 GeV of at least one of its features, LW2, provide further constraints to models of γ-Ray emission from pulsars.Key words: gamma rays: stars / pulsars: individual: PSR B0833-45 / radiation mechanisms: non-thermal⋆ Corresponding authors: H.E.S.S. Collaboration, e-mail:hess@hess-experiment.eu⋆⋆ Funded by EU FP7 Marie Curie, grant agreement No. PIEF-GA-2012-332350.⋆⋆⋆ Deceased. | |
dc.language.iso | en | |
dc.publisher | EDP Sciences | |
dc.subject.en | gamma rays: stars | |
dc.subject.en | pulsars: individual: PSR B0833-45 | |
dc.subject.en | radiation mechanisms: non-thermal | |
dc.subject.en | pulsar | |
dc.subject.en | gamma ray | |
dc.subject.en | GLAST | |
dc.subject.en | HESS | |
dc.subject.en | pulsed | |
dc.subject.en | curvature | |
dc.subject.en | overlap | |
dc.subject.en | photon | |
dc.subject.en | threshold | |
dc.title.en | First Ground-based Measurement of Sub-20 GeV to 100 GeV $\gamma$-rays from the Vela Pulsar with H.E.S.S. II | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1051/0004-6361/201732153 | |
dc.subject.hal | Physique [physics]/Astrophysique [astro-ph] | |
dc.identifier.arxiv | 1807.01302 | |
bordeaux.journal | Astronomy and Astrophysics - A&A | |
bordeaux.page | A66 | |
bordeaux.volume | 620 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-01851325 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-01851325v1 | |
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