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The Kolmogorov-Smirnov test for three redshift distributions of long gamma-ray bursts in the Swift Era
Dong, Yun-Ming1,2; Lu, Tan2
2009
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
Volume9Issue:1Pages:95-101
AbstractWe 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.
KeywordGamma Rays: Bursts Redshifts Distributions: Statistical Ks Test
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordVARIABILITY/PEAK LUMINOSITY CORRELATION ; 28 FEBRUARY 1997 ; PEAK LUMINOSITY ; BATSE ; EMISSION ; SAMPLE ; ENERGY ; LAGS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000264770600008
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/15937
Collection院士文集_陆埮
Affiliation1.Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610066, Peoples R China
2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Dong, Yun-Ming,Lu, Tan. The Kolmogorov-Smirnov test for three redshift distributions of long gamma-ray bursts in the Swift Era[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(1):95-101.
APA Dong, Yun-Ming,&Lu, Tan.(2009).The Kolmogorov-Smirnov test for three redshift distributions of long gamma-ray bursts in the Swift Era.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(1),95-101.
MLA Dong, Yun-Ming,et al."The Kolmogorov-Smirnov test for three redshift distributions of long gamma-ray bursts in the Swift Era".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.1(2009):95-101.
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