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arXiv 2603.21741astro-ph.HE
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第二次H.E.S.S.高能伽马射线暴目录:利用H.E.S.S.望远镜15年的观测

The second H.E.S.S. gamma-ray burst catalogue: 15 years of observations with the H.E.S.S. telescopes

University of Southern Denmark(南丹麦大学);Dublin Institute for Advanced Studies(都柏林高等研究院);Max-Planck-Institut für Kernphysik(马克斯·普朗克核物理研究所);INFN Sezione di Padova(帕多瓦国家核物理研究所分部);Laboratoire Leprince-Ringuet, École Polytechnique, CNRS, Institut Polytechnique de Paris(巴黎理工学院勒普林斯-林格特实验室(CNRS));École Polytechnique(巴黎综合理工学院);Institut Polytechnique de Paris(巴黎理工学院);University of Namibia(纳米比亚大学);Centre for Space Research, North-West University(西北大学太空研究中心);Deutsches Elektronen-Synchrotron DESY(德国电子同步辐射中心);Universität Potsdam(波茨坦大学);Université Paris Cité(巴黎西岱大学);Linnaeus University(林雪平大学)
A. Acharyya, F. Aharonian, C. Arcaro, H. Ashkar, M. Backes, V. Barbosa Martins, R. Batzofin, Y. Becherini, D. Berge, K. Bernlöhr, M. Böttcher, C. Boisson, J. Bo… 展开作者

A. Acharyya, F. Aharonian, C. Arcaro, H. Ashkar, M. Backes, V. Barbosa Martins, R. Batzofin, Y. Becherini, D. Berge, K. Bernlöhr, M. Böttcher, C. Boisson, J. Bolmont, J. Borowska, F. Brun, B. Bruno, C. Burger-Scheidlin, S. Casanova, J. Celic, M. Cerruti, S. Chandra, A. Chen, M. Chernyakova, J. O. Chibueze, O. Chibueze, T. Collins, B. Cornejo, G. Cotter, J. Damascene Mbarubucyeye, I. D. Davids, J. de Assis Scarpin, M. de Bony de Lavergne, M. de Naurois, E. de Oña Wilhelmi, A. G. Delgado Giler, J. Devin, A. Djannati-Ataï, J. Djuvsland, A. Dmytriiev, K. Egberts, K. Egg, J. -P. Ernenwein, C. Escañuela Nieves, M. D. Filipovic, G. Fontaine, S. Funk, S. Gabici, Y. A. Gallant, M. Genaro, J. F. Glicenstein, J. Glombitza, M. -H. Grondin, L. Heckmann, B. Heß, J. A. Hinton, W. Hofmann, T. L. Holch, M. Holler, D. Horns, Z. Huang, M. Jamrozy, F. Jankowsky, I. Jaroschewski, D. Jimeno Sanchez, I. Jung-Richardt, E. Kasai, K. Kasprzak, K. Katarzyński, D. Kerszberg, B. Khélifi, W. Kluzniak, N. Komin, K. Kosack, D. Kostunin, R. G. Lang, S. Lazarević, M. Lemoine-Goumard, J. -P. Lenain, P. Liniewicz, A. Luashvili, J. Mackey, D. Malyshev, D. Malyshev, V. Marandon, M. Mayer, A. Mehta, A. Mikhno, A. M. W. Mitchell, R. Moderski, M. O. Moghadam, L. Mohrmann, A. Montanari, E. Moulin, J. Niemiec, P. O'Brien, L. Olivera-Nieto, S. Panny, M. Panter, R. D. Parsons, U. Pensec, P. Pichard, S. Pita, G. Pühlhofer, M. Punch, A. Quirrenbach, M. Regeard, A. Reimer, O. Reimer, I. Reis, H. Ren, B. Reville, F. Rieger, G. Rowell, B. Rudak, E. Ruiz-Velasco, K. Sabri, V. Sahakian, H. Salzmann, D. A. Sanchez, A. Santangelo, M. Sasaki, F. Schüssler, M. Senniappan, J. N. S. Shapopi, W. Si Said, H. Sol, S. Spencer, Ł. Stawarz, S. Steinmassl, T. Tanaka, A. M. Taylor, G. L. Taylor, R. Terrier, M. Tsirou, T. Unbehaun, C. van Eldik, M. Vecchi, C. Venter, J. Vink, T. Wach, S. J. Wagner, A. Wierzcholska, M. Zacharias, A. A. Zdziarski, W. Zhong, S. J. Zhu, A. Zech

AI总结:

本文基于H.E.S.S.15年观测数据,探讨了高能伽马射线暴的探测结果及意义,发现未检测到显著高能信号,但部分爆发具有明亮X射线发射和有利的红移条件,凸显下一代IACTs的潜力。

摘要:

近期利用成像大气切伦科夫望远镜(IACTs)的观测努力,导致了明亮伽马射线暴(GRBs)的高能信号的确定性检测,通常在中等红移处。本文呈现了H.E.S.S. 15年的GRB观测数据,并通过种群比较和选定的建模案例探讨其意义。GRBs是高能立体系统(H.E.S.S.)的关键科学目标。H.E.S.S.具有低能阈值(≈100 GeV)和快速重新指向能力,可在GRB触发后几秒钟内开始后续观测,覆盖晚期提示或早期后glow阶段。我们报告了H.E.S.S.从2004年到2019年的GRB后续观测,结果没有显著高能信号(除了GRB~180720B和GRB~190829A的检测)。所得上限是目前GRBs在高能范围内的最大集合。一部分条件有利的爆发被选中进行X射线分析和发射建模。种群研究用于比较检测和未检测的GRBs。结果表明,高能检测的GRBs不是独特的种群,但倾向于具有明亮的X射线发射和有利的红移和观测条件。这突显了下一代IACTs如切伦科夫望远镜阵列观测站(CTAO)的潜力,其更低的能量阈值将增强对更暗淡和更遥远GRBs的探测。

英文摘要:

Recent observational efforts using imaging atmospheric Cherenkov telescopes (IACTs) have led to firm detections of very-high-energy (VHE) signals from bright gamma-ray bursts (GRBs), often at moderate redshifts. This work presents 15 years of H.E.S.S. GRB observations and examines their implications through population comparisons and selected modelling cases. GRBs are a key science target of the High Energy Stereoscopic System (H.E.S.S.). With a low-energy threshold ($\lesssim$100 GeV) and rapid repointing capabilities, H.E.S.S. can begin follow-up observations within tens of seconds after a GRB trigger, covering the late prompt or early afterglow phases. We report GRB follow-up observations with H.E.S.S. from 2004 to 2019, which resulted in no significant VHE signals (aside from the detections of GRB~180720B and GRB~190829A). The resulting upper limits comprise the largest set available for GRBs at VHE. A subset of bursts with favourable conditions were selected for X-ray analysis and emission modelling. Population studies were performed to compare detected and non-detected GRBs. The results indicate that VHE-detected GRBs are not a distinct population, but tend to feature luminous X-ray emission and favourable redshift and observing conditions. This highlights the potential of next-generation IACTs such as the Cherenkov Telescope Array Observatory (CTAO), whose lower energy threshold will enhance the detection of fainter and more distant GRBs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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