Two dimensional classification of the Swift/BAT GRBs | |
Yang, E. B.1; Zhang, Z. B.1,2; Jiang, X. X.1 | |
刊名 | ASTROPHYSICS AND SPACE SCIENCE |
2016-08-01 | |
卷号 | 361期号:8 |
关键词 | Gamma-ray Burst: General Methods: Data Analysis Methods: Statistical |
ISSN号 | 0004-640X |
DOI | 10.1007/s10509-016-2838-5 |
文献子类 | Article |
英文摘要 | 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. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
URL标识 | 查看原文 |
出版地 | VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS |
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] |
WOS关键词 | GAMMA-RAY BURSTS ; DURATION DISTRIBUTION ; INTRINSIC DURATIONS ; MODEL SELECTION ; 3RD CLASS ; DISTRIBUTIONS ; CRITERIA |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000381114700012 |
资助机构 | National Natural Science Foundation of China[U1431126, 11263002, 11311140248, 11203026] ; Provincial Natural Science Foundations[201519, 20134021, 20117006, OP201511] |
内容类型 | 期刊论文 |
源URL | [http://ir.ynao.ac.cn/handle/114a53/9685] |
专题 | 云南天文台_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). |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论