Different features of jets and isotropic fireballs in gamma-ray burst phase

doi:10.1088/1009-9271/6/1/008

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	Different features of jets and isotropic fireballs in gamma-ray burst phase
	Dong YM(董云明)1,2 ; Jia LW(贾兰伟)1,2 ; Zhao XH(赵晓红)1,2 ; Dong, YM (reprint author), Chinese Acad Sci, Yunnan Astron Obser, Natl Astron Observ, Kunming 650011, Peoples R China.
发表期刊	CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
	2006
卷号	6 期号:1 页码:69-76
DOI	10.1088/1009-9271/6/1/008
产权排序	第1完成单位
收录类别	SCI
关键词	Gamma-rays : Bursts Gamma-rays : Theory Radiation Mechanisms : Nonthermal Relativity
摘要	We investigated physical quantities including the spectrum, emission lilies and pulse profiles expected from a uniform jet, a spherical fireball and the 1/Gamma region (the portion of the spherical fireball with opening angle 1/Gamma) in the prompt emission phase, after taking into consideration of the Doppler effect under the fireball framework. Our study shows that: a) for these physical quantities the spherical fireball and the uniform jets do not present obvious differences, so we cannot use these to distinguish a spherical fireball from a uniform jet; b) for the spherical fireball and a uniform jet, the observed quantities mainly come from the 1/Gamma region, so we can simply use the 1/Gamma region in approximate calculations; c) broadening of emission lines is a general phenomena, which mainly comes from the curvature effect; d) the 1/Gamma region plays different roles in different frequency ranges, and the radiation from the 1/Gamma region is greater in the higher than in the lower frequencies.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	1009-9271
URL	查看原文
归档日期	2006-03-20
WOS记录号	WOS:000235501700008
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	STANDARD ENERGY RESERVOIR ; AFTERGLOW LIGHT CURVES ; BATSE OBSERVATIONS ; SPECTRA ; PULSES ; SPECTROSCOPY ; ENERGETICS ; CATALOG ; MODEL
引用统计
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/7011
专题	星系研究组
通讯作者	Dong, YM (reprint author), Chinese Acad Sci, Yunnan Astron Obser, Natl Astron Observ, Kunming 650011, Peoples R China.
作者单位	1.Yunnan Astronomical Observatory/National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011 2.Graduate University of Chinese Academy of Sciences, Beijing 100049
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Dong YM,Jia LW,Zhao XH,et al. Different features of jets and isotropic fireballs in gamma-ray burst phase[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(1):69-76.
APA	Dong YM,Jia LW,Zhao XH,&Dong, YM .(2006).Different features of jets and isotropic fireballs in gamma-ray burst phase.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(1),69-76.
MLA	Dong YM,et al."Different features of jets and isotropic fireballs in gamma-ray burst phase".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.1(2006):69-76.

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