Two dimensional classification of the Swift/BAT GRBs
Yang, E. B.1; Zhang, Z. B.1,2; Jiang, X. X.1
发表期刊ASTROPHYSICS AND SPACE SCIENCE
2016-08-01
卷号361期号:8
DOI10.1007/s10509-016-2838-5
收录类别SCI
关键词Gamma-ray Burst: General Methods: Data Analysis Methods: Statistical
摘要

Using Gaussian Mixture Model and Expectation Maximization algorithm, we have performed a density estimation in the framework of T-90 versus hardness ratio for 296 Swift/BAT GRBs with known redshift. Here, Bayesian Information Criterion has been taken to compare different models. Our investigations show that two instead of three or more Gaussian components are favoured in both the observer and rest frames. Our key findings are consistent with some previous results.

资助项目National Natural Science Foundation of China[U1431126] ; National Natural Science Foundation of China[11263002] ; National Natural Science Foundation of China[11311140248] ; National Natural Science Foundation of China[11203026] ; Provincial Natural Science Foundations[201519] ; Provincial Natural Science Foundations[20134021] ; Provincial Natural Science Foundations[20117006] ; Provincial Natural Science Foundations[OP201511]
项目资助者National Natural Science Foundation of China[U1431126, 11263002, 11311140248, 11203026] ; Provincial Natural Science Foundations[201519, 20134021, 20117006, OP201511]
语种英语
学科领域天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
学科门类理学 ; 理学::天文学
文章类型Article
出版者SPRINGER
出版地VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
ISSN0004-640X
URL查看原文
WOS记录号WOS:000381114700012
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]GAMMA-RAY BURSTS ; DURATION DISTRIBUTION ; INTRINSIC DURATIONS ; MODEL SELECTION ; 3RD CLASS ; DISTRIBUTIONS ; CRITERIA
引用统计
被引频次:15[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/114a53/9685
专题中国科学院天体结构与演化重点实验室
通讯作者Zhang, Z. B.
作者单位1.Department of Physics, College of SciencesGuizhou UniversityGuiyangChina
2.Key Laboratory for the Structure and Evolution of Celestial ObjectsChinese Academy of SciencesKunmingChina
推荐引用方式
GB/T 7714
Yang, E. B.,Zhang, Z. B.,Jiang, X. X.. Two dimensional classification of the Swift/BAT GRBs[J]. ASTROPHYSICS AND SPACE SCIENCE,2016,361(8).
APA Yang, E. B.,Zhang, Z. B.,&Jiang, X. X..(2016).Two dimensional classification of the Swift/BAT GRBs.ASTROPHYSICS AND SPACE SCIENCE,361(8).
MLA Yang, E. B.,et al."Two dimensional classification of the Swift/BAT GRBs".ASTROPHYSICS AND SPACE SCIENCE 361.8(2016).
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