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

	GRB 080916C AND GRB 090510: THE HIGH-ENERGY EMISSION AND THE AFTERGLOW
	Gao, WH 1; Mao JR(毛基荣)2,3; Xu, D 4; Fan, YZ 4,5,6
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
通讯作者	Fan, YZ (reprint author), Univ Copenhagen, Dark Cosmol Ctr, Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
产权排序	第三完成单位
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
原文出处	http://iopscience.iop.org/1538-4357/706/1/L33/
语种	英语
WOS记录号	WOS:000271533200007
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4974]
专题	云南天文台_高能天体物理研究组
作者单位	1.Department of Physics and Institute of Theoretical Physics, Nanjing Normal University, Nanjing 210046, China 2.INAF Osservatorio Astronomico di Brera, via Bianchi 46, Merate 23807, Italy 3.Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 4.Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen, Denmark 5.Niels Bohr International Academy, Niels Bohr Institute, University of Copenhagen, Blegdamsvej 17, 2100 Copenhagen, Denmark 6.Purple Mountain Observatory, Chinese Academy of Science, Nanjing 210008, China
推荐引用方式 GB/T 7714	Gao, WH,Mao JR,Xu, D,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, WH,Mao JR,Xu, D,&Fan, YZ.(2009).GRB 080916C AND GRB 090510: THE HIGH-ENERGY EMISSION AND THE AFTERGLOW.ASTROPHYSICAL JOURNAL LETTERS,706(1),L33-L36.
MLA	Gao, WH,et al."GRB 080916C AND GRB 090510: THE HIGH-ENERGY EMISSION AND THE AFTERGLOW".ASTROPHYSICAL JOURNAL LETTERS 706.1(2009):L33-L36.