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题名: Modeling the radio and optical/NIR afterglows of GRB 980703: A numerical study
作者: Kong SiWei1; Huang YongFeng1; Cheng KwongSang2; Lu Tan(陆埮)3
刊名: SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY
出版日期: 2009-12-01
卷号: 52, 期号:12, 页码:2047-2053
关键词: gamma ray bursts ; jets and outflows ; afterglows ; hydrodynamics ; shock waves
学科分类: Astronomy & Astrophysics
DOI: 10.1007/s11433-009-0275-y
文章类型: Article
英文摘要: Extensive multi-band afterglow data are available for GRB 980703. Especially, its radio afterglow was very bright and was monitored until more than 1000 days after the trigger time. Additionally, there is no obvious special feature, i.e., no rebrightenings, no plateau, and no special steep decay or slow decay in the multi-band afterglow light curves. All these conditions make GRB 980703 a precious sample in gamma-ray burst research. Here we use the observational data of GRB 980703 to test the standard fireball model in depth. It is found that the model can give a satisfactory explanation to the multi-band and overall afterglow light curves. The beaming angle of GRB 980703 is derived as similar to 0.23 radian, and the circum-burst medium density is similar to 27 cm(-3). The total isotropic equivalent kinetic energy of the ejecta is similar to 3.8 x 10(52) ergs. A rest-frame extinction of A(v) similar to 2.5 mag in the host galaxy is also derived.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: GAMMA-RAY-BURST ; INVERSE COMPTON-SCATTERING ; BROAD-BAND AFTERGLOW ; 28 FEBRUARY 1997 ; HOST GALAXIES ; LIGHT CURVES ; X-RAY ; PHYSICAL PARAMETERS ; DUST EXTINCTION ; GRB-980703
收录类别: SCI
语种: 英语
WOS记录号: WOS:000272622300031
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/10966
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.Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China

Recommended Citation:
孔思伟(Kong SW), 黄永锋(Huang YF), 郑广生(Cheng KS), 陆 埮(Lu T).Modeling the radio and optical/NIR afterglows of GRB 980703: A numerical study,Science in China,2009,(2047-2053):
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文件名: 092-2009-Sci-China-孔黄郑陆-Modeling the radio and opticalNIR afterglows of GRB 980703 A numerical study-52#2047-2053.pdf
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