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题名: Rebrightening of XRF 030723: Further evidence for a two-component jet in a gamma-ray burst
作者: Huang, YF; Wu XueFeng(吴雪峰); Dai, ZG; Ma, HT; Lu Tan(陆埮)
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2004-04-10
卷号: 605, 期号:1, 页码:300-306
关键词: gamma rays : bursts ; ISM : jets and outflows ; X-rays : bursts
学科分类: Astronomy & Astrophysics
文章类型: Article
英文摘要: 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.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: AFTERGLOW LIGHT CURVES ; STANDARD ENERGY RESERVOIR ; DENSITY-JUMP MEDIUM ; OPTICAL AFTERGLOW ; GRB 990123 ; POLARIMETRIC CONSTRAINTS ; VIEWING ANGLE ; EMISSION ; FLASHES ; EVOLUTION
收录类别: SCI
语种: 英语
WOS记录号: WOS:000220801700026
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/10949
Appears in Collections:陆埮_期刊论文

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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

Recommended Citation:
黄永锋、吴雪峰、戴子高、马海涛、陆 埮.Rebrightening of XRF 030723: Further Evidence for a Two-Component Jet in a Gamma-Ray Burst,ApJ,2004,605(300):
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文件名: 070-2004-ApJ-HWuDMaHaitaoL-Rebrightening of XRF 030723 Further Evidence for a Two-Component Jet in a Gamma-Ray Burst-605#-300-306.pdf
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