Neutrino afterglows and progenitors of gamma-ray bursts | |
Dai, ZG; Lu, T | |
刊名 | ASTROPHYSICAL JOURNAL
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2001 | |
卷号 | 551期号:1页码:#REF! |
关键词 | gamma rays : bursts |
通讯作者 | Dai, ZG (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China. |
英文摘要 | Currently popular models for progenitors of gamma-ray bursts (GRBs) are the mergers of compact objects and the explosions of massive stars. These two cases have distinctive environments for GRBs: compact object mergers occur in the interstellar medium (ISM) and the explosions of massive stars occur in the preburst stellar wind. We here discuss neutrino afterglows from reverse shocks as a result of the interaction of relativistic fireballs with their surrounding wind matter. After comparing with the analytical result of Waxman & Bahcall for the homogeneous ISM case, we find that the differential spectrum of neutrinos with energy from similar to3 x 10(15) to similar to3 x 10(17) eV in the wind case is softer by 1 power of the energy than in the ISM case. Furthermore, the expected flux of upward moving muons produced by neutrino interactions below a detector on the surface of the Earth in the wind case is similar to5 events yr(-1) km(-2), which is about 1 order of magnitude larger than in the ISM case. In addition, these properties are independent of whether the fireballs are isotropic or beamed. Therefore, neutrino afterglows, if detected, may provide a way of distinguishing between GRB progenitor models based on the differential spectra of neutrinos and their event rates in a detector. |
学科主题 | Astronomy & Astrophysics |
类目[WOS] | Astronomy & Astrophysics |
收录类别 | SCI |
WOS记录号 | WOS:000168152200023 |
公开日期 | 2016-05-03 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/227187] ![]() |
专题 | 高能物理研究所_粒子天体物理中心 |
推荐引用方式 GB/T 7714 | Dai, ZG,Lu, T. Neutrino afterglows and progenitors of gamma-ray bursts[J]. ASTROPHYSICAL JOURNAL,2001,551(1):#REF!. |
APA | Dai, ZG,&Lu, T.(2001).Neutrino afterglows and progenitors of gamma-ray bursts.ASTROPHYSICAL JOURNAL,551(1),#REF!. |
MLA | Dai, ZG,et al."Neutrino afterglows and progenitors of gamma-ray bursts".ASTROPHYSICAL JOURNAL 551.1(2001):#REF!. |
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