Mass Segregation as a New Indicator of Binary, IMBH, and Stellar-mass Black Hole Systems in Globular Clusters
文献类型：期刊论文
| 作者 | Wu,Wenbo1,2; Zhao,Gang1,2
|
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 908期号:2 |
| 关键词 | Globular star clusters Binary stars Intermediate-mass black holes Stellar mass black holes Stellar kinematics Star clusters |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/abd6b8 |
| 英文摘要 | Abstract This study presents the mass segregation of 35 Galactic globular clusters (GCs) through the radial profile of the mean mass of main-sequence stars. Most of them are found to be mass segregated due to two-body relaxation effects. The GCs with a larger core to half-mass–radius ratio tend to be less mass segregated. Recent simulations show that energy sources can quench mass segregation in relaxed GCs. Combining mass segregation and core binary fractions (fc), we find a moderate anticorrelation between them when fc is below 0.15. Four GCs that have a small amount of mass segregation are selected as possible intermediate-mass black hole holders. However, none of them are strong candidates considering their half-mass relaxation times. |
| 语种 | 英语 |
| WOS记录号 | IOP:0004-637X-908-2-ABD6B8 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/60649]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Zhao,Gang |
| 作者单位 | 1.CAS Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, People’s Republic of China gzhao@nao.cas.cn 2.School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Wu,Wenbo,Zhao,Gang. Mass Segregation as a New Indicator of Binary, IMBH, and Stellar-mass Black Hole Systems in Globular Clusters[J]. The Astrophysical Journal,2021,908(2). |
| APA | Wu,Wenbo,&Zhao,Gang.(2021).Mass Segregation as a New Indicator of Binary, IMBH, and Stellar-mass Black Hole Systems in Globular Clusters.The Astrophysical Journal,908(2). |
| MLA | Wu,Wenbo,et al."Mass Segregation as a New Indicator of Binary, IMBH, and Stellar-mass Black Hole Systems in Globular Clusters".The Astrophysical Journal 908.2(2021). |
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来源：国家天文台
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