Neutrino afterglows and progenitors of gamma-ray bursts

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	Neutrino afterglows and progenitors of gamma-ray bursts
	Dai, ZG; Lu, T
刊名	ASTROPHYSICAL JOURNAL
	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!.