Gamma-ray bursts: post-burst evolution of fireballs
Huang, YF; Dai, ZG; Wei, DM; Lu, T
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
1998
卷号298期号:2页码:459-463
关键词relativity shock waves gamma-rays : bursts
学科分类Astronomy & Astrophysics
DOI10.1046/j.1365-8711.1998.01632.x
通讯作者Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China ; Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; CAS, IHEP, LCRHEA, Beijing, Peoples R China
文章类型Article
英文摘要The post-burst evolution of fireballs that produce gamma-ray bursts (GRBs) is studied, assuming the expansion of fireballs to be adiabatic and relativistic. Numerical results as well as an approximate analytic solution for the evolution are presented. Owing to the adoption of a new relation between t, R and gamma, our results differ markedly from previous studies. Synchrotron radiation from the shocked interstellar medium is carefully calculated, using a conventional set of equations, The observed X-ray flux of GRB afterglows can be reproduced easily. Although the optical afterglows seem much more complicated, our results can still present a rather satisfactory agreement with observations. We also find that the expansion will no longer be highly relativistic about 4 d after the main GRB. We thus suggest that the marginally relativistic phase of the expansion should be investigated so as to check the afterglows observed a week or more later.
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS记录号WOS:000075941500018
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被引频次:32[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/311005/237566
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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Huang, YF,Dai, ZG,Wei, DM,et al. Gamma-ray bursts: post-burst evolution of fireballs[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,1998,298(2):459-463.
APA Huang, YF,Dai, ZG,Wei, DM,&Lu, T.(1998).Gamma-ray bursts: post-burst evolution of fireballs.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,298(2),459-463.
MLA Huang, YF,et al."Gamma-ray bursts: post-burst evolution of fireballs".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 298.2(1998):459-463.
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