IHEP OpenIR  > 粒子天体物理中心
Classifying gamma-ray bursts with Gaussian Mixture Model
Zhang, ZB; Shi WQ(石伟群); Yang, EB; Choi, CS; Chang, HY
2016
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号462期号:3页码:3243
通讯作者杨恩博
文章类型Article
摘要Using Gaussian Mixture Model (GMM) and expectation-maximization algorithm, we perform an analysis of time duration (T-90) for Compton Gamma Ray Observatory (CGRO)/BATSE, Swift/BAT and Fermi/GBM gamma-ray bursts (GRBs). The T-90 distributions of 298 redshift-known Swift/BAT GRBs have also been studied in both observer and rest frames. Bayesian information criterion has been used to compare between different GMM models. We find that two Gaussian components are better to describe the CGRO/BATSE and Fermi/GBM GRBs in the observer frame. Also, we caution that two groups are expected for the Swift/BAT bursts in the rest frame, which is consistent with some previous results. However, Swift GRBs in the observer frame seem to show a trimodal distribution, of which the superficial intermediate class may result from the selection effect of Swift/BAT.
关键词methods: data analysis methods: statistical gamma-ray burst: general
DOI10.1093/mnras/stw1835
关键词[WOS]EXTENDED EMISSION ; DURATION DISTRIBUTION ; INTRINSIC DURATIONS ; SWIFT ERA ; BATSE ; GRBS ; CLASSIFICATION ; SELECTION ; CATALOG ; ENERGY
语种英语
WOS记录号WOS:000384676000066
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260795
专题粒子天体物理中心
多学科研究中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Zhang, ZB,Shi WQ,Yang, EB,et al. Classifying gamma-ray bursts with Gaussian Mixture Model[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,462(3):3243.
APA Zhang, ZB,石伟群,Yang, EB,Choi, CS,&Chang, HY.(2016).Classifying gamma-ray bursts with Gaussian Mixture Model.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,462(3),3243.
MLA Zhang, ZB,et al."Classifying gamma-ray bursts with Gaussian Mixture Model".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 462.3(2016):3243.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
20160941.pdf(1465KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, ZB]的文章
[石伟群]的文章
[Yang, EB]的文章
百度学术
百度学术中相似的文章
[Zhang, ZB]的文章
[石伟群]的文章
[Yang, EB]的文章
必应学术
必应学术中相似的文章
[Zhang, ZB]的文章
[石伟群]的文章
[Yang, EB]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。