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Rebrightening of XRF 030723: Further evidence for a two-component jet in a gamma-ray burst
Huang, YF; Wu, XF; Dai, ZG; Ma, HT; Lu, T
2004-04-10
发表期刊ASTROPHYSICAL JOURNAL
卷号605期号:1页码:300-306
摘要We numerically investigate optical afterglows from two-component jets under various configurations. Generally, the light curve is characterized by a rapid rebrightening when the observer is off-axis with respect to the narrow component, with the amplitude and peak time depending on detailed parameters. We further show that the optical afterglow of XRF 030723, especially its notable and rapid rebrightening, can be well explained by a typical two-component jet. This X-ray flash, together with GRB 030329, strongly hints toward the two-component jet model as a unified picture for X-ray flashes and gamma-ray bursts. With a narrow but ultra-relativistic inner outflow and a wide but less energetic outer ejecta, a two-component jet will be observed as a typical gamma-ray burst if our line of sight is within the angular scope of the narrow outflow. Otherwise, if the line of sight is within or slightly beyond the cone of the wide component, an X-ray flash will be detected.
关键词Gamma Rays : Bursts Ism : Jets And Outflows X-rays : Bursts
收录类别SCI
语种英语
WOS记录号WOS:000220801700026
引用统计
被引频次:92[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8990
专题应用天文研究部
作者单位1.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China
2.Chinese Acad Sci, IHEP, LCRHEA, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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Huang, YF,Wu, XF,Dai, ZG,et al. Rebrightening of XRF 030723: Further evidence for a two-component jet in a gamma-ray burst[J]. ASTROPHYSICAL JOURNAL,2004,605(1):300-306.
APA Huang, YF,Wu, XF,Dai, ZG,Ma, HT,&Lu, T.(2004).Rebrightening of XRF 030723: Further evidence for a two-component jet in a gamma-ray burst.ASTROPHYSICAL JOURNAL,605(1),300-306.
MLA Huang, YF,et al."Rebrightening of XRF 030723: Further evidence for a two-component jet in a gamma-ray burst".ASTROPHYSICAL JOURNAL 605.1(2004):300-306.
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