A comparison of temporal properties of short and long gamma-ray bursts

doi:10.1007/s10509-007-9390-2

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	A comparison of temporal properties of short and long gamma-ray bursts
	Zhang ZB(张志彬)1,2 ; Xie GZ(谢光中)1 ; Zhang, ZB (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
发表期刊	ASTROPHYSICS AND SPACE SCIENCE
	2007-07
卷号	310 期号:1-2 页码:19-23
DOI	10.1007/s10509-007-9390-2
产权排序	第1完成单位
收录类别	SCI
关键词	Gamma-rays : Bursts Methods : Data Analysis
摘要	In this paper, we have performed a temporal analysis of single pulses from short (46) and long (51) gamma-ray bursts (GRBs) to investigate possible differences in their properties. In particular we pay detailed attention to the asymmetry of pulses. We find that the asymmetry ratio of short GRB pulses clusters around 0.81 and that these pulses are on average more symmetric than those from long GRBs, which have an average value of 0.47. In addition we note that the pulses in short GRBs display exponential rises and fast decays (ERFD) in comparison the fast rise exponential decays (FRED) pulses of long GRBs. The asymmetry ratio does not depend on the full width at half maximum (FWHM) and does not vary with energy channel. Moreover, there is a general trend for slower pulses to be more asymmetric. Finally, we deduce that the asymmetry could be used to probe the emission mechanisms of GRBs.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0004-640X
URL	查看原文
归档日期	2007-06-27
WOS记录号	WOS:000247635000003
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	EXTERNAL SHOCK MODEL ; INTERNAL SHOCKS ; VARIABILITY ; PULSES ; SIGNATURES ; SPECTRA ; SHELLS
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/7023
专题	星系研究组
通讯作者	Zhang, ZB (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Peoples R China.
作者单位	1.Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, P.O., Box 110, Kunming, 650011, China 2.The Graduate School of the Chinese Academy of Sciences, Beijing, 10049, China
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	Zhang ZB,Xie GZ,Zhang, ZB . A comparison of temporal properties of short and long gamma-ray bursts[J]. ASTROPHYSICS AND SPACE SCIENCE,2007,310(1-2):19-23.
APA	Zhang ZB,Xie GZ,&Zhang, ZB .(2007).A comparison of temporal properties of short and long gamma-ray bursts.ASTROPHYSICS AND SPACE SCIENCE,310(1-2),19-23.
MLA	Zhang ZB,et al."A comparison of temporal properties of short and long gamma-ray bursts".ASTROPHYSICS AND SPACE SCIENCE 310.1-2(2007):19-23.

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