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Neutrino afterglows and progenitors of gamma-ray bursts
Dai, ZG; Lu, T
2001
发表期刊ASTROPHYSICAL JOURNAL
卷号551期号:1页码:#REF!
通讯作者Dai, ZG (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China.
文章类型Article
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.
关键词gamma rays : bursts
学科领域Astronomy & Astrophysics
DOI10.1086/320056
收录类别SCI
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000168152200023
引用统计
被引频次:66[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227187
专题粒子天体物理中心
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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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