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题名: The Kolmogorov-Smirnov test for three redshift distributions of long gamma-ray bursts in the Swift Era
作者: Dong, Yun-Ming1, 2; Lu Tan(陆埮)2
刊名: RESEARCH IN ASTRONOMY AND ASTROPHYSICS
出版日期: 2009
卷号: 9, 期号:1, 页码:95-101
关键词: gamma rays: bursts ; redshifts ; distributions: statistical ; KS test
文章类型: Article
英文摘要: We investigate redshift distributions of three long burst samples, with the first sample containing 131 long bursts with observed redshifts, the second including 220 long bursts with pseudo-redshifts calculated by the variability-luminosity relation, and the third including 1194 long bursts with pseudo-redshifts calculated by the lag-luminosity relation, respectively. In the redshift range 0-1 the Kolmogorov-Smirnov probability of the observed redshift distribution and that of the variability-luminosity relation is large. In the redshift ranges 1-2, 2-3, 3-6.3 and 0-37, the Kolmogorov-Smirnov probabilities of the redshift distribution from lag-luminosity relation and the observed redshift distribution are also large. For the GRBs, which appear both in the two pseudo-redshift burst samples, the KS probability of the pseudo-redshift distribution from the lag-luminosity relation and the observed reshift distribution is 0.447, which is very large. Based on these results, some conclusions are drawn: i) the V-L(iso) relation might be more believable than the tau-L(iso) relation in low redshift ranges and the tau-L(iso) relation might be more real than the V-L(iso) relation in high redshift ranges; ii) if we do not consider the redshift ranges, the tau-L(iso) relation might be more physical and intrinsical than the V-L(iso) relation.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: VARIABILITY/PEAK LUMINOSITY CORRELATION ; 28 FEBRUARY 1997 ; PEAK LUMINOSITY ; BATSE ; EMISSION ; SAMPLE ; ENERGY ; LAGS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000264770600008
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15937
Appears in Collections:陆埮_期刊论文

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作者单位: 1.Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610066, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
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