Origins of short gamma-ray bursts deduced from offsets in their host galaxies revisited
文献类型：期刊论文
| 作者 | Cui, Xiao-Hong1; Nagataki, Shigehiro2; Aoi, Junichi2; Xu, Ren-Xin3,4 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 12期号:9页码:1255-1268 |
| 关键词 | gamma-rays: bursts cosmology: galaxy methods: statistical |
| 英文摘要 | The spatial distribution of short Gamma-ray bursts (GRBs) in their host galaxies provides us with an opportunity to investigate their origins. Based on the currently observed distribution of short GRBs relative to their host galaxies, we obtain the fraction of the component that traces the mergers of binary compact objects and the one that traces star formation rate (such as massive stars) in early- and late-type host galaxies. From the analysis of projected offset distribution and only based on population synthesis and massive star models, we find that the fraction of massive stars is 0.37(-0.37)(+0.42) with an error at the 1 sigma level for a sample with 22 short GRBs in the literature. From these results, it is hard to accept that the origin of short GRBs with observed statistics is well described by current models using only the offset distribution. The uncertainties in observational localizations of short GRBs also strongly affect the resulting fraction. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000309021900006 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6063]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Yukawa Inst Theoret Phys, Sakyo Ku, Kyoto 6068502, Japan 3.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 4.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui, Xiao-Hong,Nagataki, Shigehiro,Aoi, Junichi,et al. Origins of short gamma-ray bursts deduced from offsets in their host galaxies revisited[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2012,12(9):1255-1268. |
| APA | Cui, Xiao-Hong,Nagataki, Shigehiro,Aoi, Junichi,&Xu, Ren-Xin.(2012).Origins of short gamma-ray bursts deduced from offsets in their host galaxies revisited.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,12(9),1255-1268. |
| MLA | Cui, Xiao-Hong,et al."Origins of short gamma-ray bursts deduced from offsets in their host galaxies revisited".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 12.9(2012):1255-1268. |
入库方式： OAI收割
来源：国家天文台
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