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Cosmological time dilation in short gamma-ray bursts
Che, H; Yang, Y; Wu M(吴枚); Wu, M; Li, QB
1997
发表期刊ASTROPHYSICAL JOURNAL
卷号483期号:1页码:L25-L27
通讯作者CHINESE ACAD SCI,SHAANXI ASTRON OBSERV,XIAN 710600,PEOPLES R CHINA ; BEIJING NORMAL UNIV,DEPT ASTRON,BEIJING 100080,PEOPLES R CHINA ; CHINESE ACAD SCI,INST HIGH ENERGY PHYS,COSM RAY & HIGH ENERGY ASTROPHYS LAB,BEIJING 100039,PEOPLES R CHINA ; CHINESE ACAD SCI,BEIJING ASTRON OBSERV,CTR YOUNG ASTRONOMER,BEIJING 100080,PEOPLES R CHINA
摘要Using the parameter V[=((C) over bar(64))(max)/((C) over bar(1024))(max)], the ratio of expected peak counts in 64 ms and 1024 ms, proposed by Che et al. recently, we find the cosmological time dilation in short gamma-ray bursts (t(90) < 1.5 s) directly from the Burst and Transient Source Experiment catalog. The parameter V of short bursts shows a good correlation with the brightness B when we use ((C) over bar(64))(max) as a measure of brightness B rather than ((C) over bar(1024))(max), introduced by Lamb et al. in 1993. In a Friedmann universe with Omega = 1 and Lambda = 0, the estimated redshift is about 2 and the time dilation factor (TDF) with the energy correction is about 1.8. The fact that these results generally agree with those found in long bursts supports the same origin of long and short gamma-ray bursts.
文章类型Article
关键词gamma rays, bursts
学科领域Astronomy & Astrophysics
DOI10.1086/310721
研究领域[WOS]Astronomy & Astrophysics
URL查看原文
语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:A1997XJ17000007
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240265
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Che, H,Yang, Y,Wu M,et al. Cosmological time dilation in short gamma-ray bursts[J]. ASTROPHYSICAL JOURNAL,1997,483(1):L25-L27.
APA Che, H,Yang, Y,吴枚,Wu, M,&Li, QB.(1997).Cosmological time dilation in short gamma-ray bursts.ASTROPHYSICAL JOURNAL,483(1),L25-L27.
MLA Che, H,et al."Cosmological time dilation in short gamma-ray bursts".ASTROPHYSICAL JOURNAL 483.1(1997):L25-L27.
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