Institutional Repository System Of Yunnan Observatories, CAS
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 |
DOI | 10.1007/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 |
ISSN | 0004-640X |
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 | |
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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