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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
Source PublicationASTROPHYSICAL JOURNAL
Volume605Issue:1Pages:300-306
AbstractWe 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.
KeywordGamma Rays : Bursts Ism : Jets And Outflows X-rays : Bursts
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordAFTERGLOW LIGHT CURVES ; STANDARD ENERGY RESERVOIR ; DENSITY-JUMP MEDIUM ; OPTICAL AFTERGLOW ; GRB 990123 ; POLARIMETRIC CONSTRAINTS ; VIEWING ANGLE ; EMISSION ; FLASHES ; EVOLUTION
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000220801700026
Citation statistics
Cited Times:96[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10949
Collection院士文集_陆埮
Affiliation1.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
GB/T 7714
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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