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The hardness-duration correlation in the two classes of gamma-ray bursts
Tan YP(覃一平)1,2,3,4; Xie GZ(谢光中)1,2,4; Xue, SJ2,3; Liang EW(梁恩维)1,2,5; Zheng, XT6; Mei DC(梅东成)1,2,4,7; Qin, YP
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2000
Volume52Issue:5Pages:759-761
DOI10.1093/pasj/52.5.759
Contribution Rank第1完成单位
Indexed BySCI
KeywordCosmology : Observations Gamma Rays : Bursts Gamma Rays : Theory Methods : Statistical
AbstractThe well-known hardness-duration correlation of gamma-ray bursts (GRBs) is investigated using data from the 4B catalog. We find that, while the hardness ratio and the duration are obviously correlated for the entire set of the 4B catalog, they are not at all correlated for the two subsets divided at the duration of 2 seconds. However, for other subsets with comparable sizes, the two quantities are significantly correlated. The following conclusions are thus reached: (1) the existence of two classes of GRBs is confirmed; (2) the hardness ratio and the duration are not at all correlated for any of the two classes; (3) different classes of GRBs have different distributions of the hardness ratio and the duration, and it is this difference that causes the correlation between the two quantities for the entire set of bursts.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6264
URL查看原文
Archive Date2001-03-16
WOS IDWOS:000165119900007
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordINTENSITY ; BATSE
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6854
Collection星系研究组
Corresponding AuthorQin, YP
Affiliation1.Yunnan Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011, P. R. China
2.National Astronomical Observatoires, Chinese Academy of Sciences, P. R. China
3.Chinese Academy of Science-Peking University joint Beijing Astrophysical Center, Department of Geophysics, Peking University, Beijing 100871, P. R. China
4.Yunnan Astrophysics Center, Yunnan University, Kunming, Yunnan 650091, P. R. China
5.Physics Department, Guangxi University, Nanning, Guangxi 530004, P. R. China
6.Department of Physics, Nanjing University of Science and Technology, Nanjing,Jiangsu 210014, P. R. China
7.Department of Physics, Yunnan University, Kunming, Yunnan 650091, P. R. China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Tan YP,Xie GZ,Xue, SJ,et al. The hardness-duration correlation in the two classes of gamma-ray bursts[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2000,52(5):759-761.
APA Tan YP.,Xie GZ.,Xue, SJ.,Liang EW.,Zheng, XT.,...&Qin, YP.(2000).The hardness-duration correlation in the two classes of gamma-ray bursts.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,52(5),759-761.
MLA Tan YP,et al."The hardness-duration correlation in the two classes of gamma-ray bursts".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 52.5(2000):759-761.
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