GRB 080916C AND GRB 090510: THE HIGH-ENERGY EMISSION AND THE AFTERGLOW

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 宇宙伽马暴、中子星及相关物理研究团组

	GRB 080916C AND GRB 090510: THE HIGH-ENERGY EMISSION AND THE AFTERGLOW
	Gao, Wei-Hong 1,2; Mao, Jirong 3,4; Xu, Dong 5; Fan, Yi-Zhong5,6,7
刊名	ASTROPHYSICAL JOURNAL LETTERS
	2009-11-20
卷号	706 期号:1 页码:L33-L36
关键词	gamma rays: bursts plasmas radiation mechanisms: non-thermal
ISSN号	2041-8205
英文摘要	We constrain the physical composition of the outflows of GRBs 080916C and 090510 with the prompt emission data and find that the former is likely magnetic, while the latter may be baryonic. The X-ray and optical afterglow emission of both GRBs can be reasonably fitted using the standard external shock model but the density profiles of the circum-burst medium are different. We also propose a simple method to estimate the number of seed photons supposing the GeV afterglow photons are due to the inverse Compton radiation of external forward shock electrons. The seed photons needed in the modeling are too many to be realistic for both events. The synchrotron radiation of the forward shock seems able to account for the GeV afterglow data.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	GAMMA-RAY BURSTS ; FIREBALL MODEL
收录类别	SCI
语种	英语
WOS记录号	WOS:000271533200007
公开日期	2011-12-08
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/1609]
专题	紫金山天文台_宇宙伽马暴、中子星及相关物理研究团组
作者单位	1.Nanjing Normal Univ, Dept Phys, Nanjing 210046, Peoples R China 2.Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210046, Peoples R China 3.INAF Osservatorio Astron Brera, I-23807 Merate, Italy 4.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China 5.Univ Copenhagen, Dark Cosmol Ctr, Niels Bohr Inst, DK-2100 Copenhagen, Denmark 6.Univ Copenhagen, Niels Bohr Int Acad, Niels Bohr Inst, DK-2100 Copenhagen, Denmark 7.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Gao, Wei-Hong,Mao, Jirong,Xu, Dong,et al. GRB 080916C AND GRB 090510: THE HIGH-ENERGY EMISSION AND THE AFTERGLOW[J]. ASTROPHYSICAL JOURNAL LETTERS,2009,706(1):L33-L36.
APA	Gao, Wei-Hong,Mao, Jirong,Xu, Dong,&Fan, Yi-Zhong.(2009).GRB 080916C AND GRB 090510: THE HIGH-ENERGY EMISSION AND THE AFTERGLOW.ASTROPHYSICAL JOURNAL LETTERS,706(1),L33-L36.
MLA	Gao, Wei-Hong,et al."GRB 080916C AND GRB 090510: THE HIGH-ENERGY EMISSION AND THE AFTERGLOW".ASTROPHYSICAL JOURNAL LETTERS 706.1(2009):L33-L36.