Black holes: The next generation-repeated mergers in dense star clusters and their gravitational-wave properties
文献类型：期刊论文
| 作者 | Rodriguez, Carl L.9; Zevin, Michael7,8; Amaro-Seoane, Pau2,3,5,6; Chatterjee, Sourav1; Kremer, Kyle7,8; Rasio, Frederic A.7,8; Ye, Claire S.7,8 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2019-08-27 |
| 卷号 | 100期号:4页码:15 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/PhysRevD.100.043027 |
| 英文摘要 | When two black holes merge in a dense star cluster, they form a new black hole with a well-defined mass and spin. If that "second-generation" black hole remains in the cluster, it will continue to participate in dynamical encounters, form binaries, and potentially merge again. Using a grid of 96 dynamical models of dense star clusters and a cosmological model of cluster formation, we explore the production of binary black hole mergers where at least one component of the binary was forged in a previous merger. We create four hypothetical universes where every black hole born in the collapse of a massive star has a dimensionless Kerr spin parameter, chi(birth), of 0.0, 0.1, 0.2, or 0.5. We show that if all stellar-born black holes are nonspinning (chi(birth) = 0.0), then more than 10% of merging binary black holes from clusters have components formed from previous mergers, accounting for more than 20% of the mergers from globular clusters detectable by LIGO/Virgo. Furthermore, nearly 7% of detectable mergers would have a component with a mass greater than or similar to 55 M-circle dot, placing it clearly in the mass "gap" region where black holes cannot form from isolated collapsing stars due to the pulsational-pair instability mechanism. On the other hand, if black holes are born spinning, then the contribution from these second-generation mergers decreases, making up as little as 1% of all detections from globular clusters when chi(birth) = 0.5. We make quantitative predictions for the detected masses, mass ratios, and spin properties of first- and second-generation mergers from dense star clusters, and show how these distributions are highly sensitive to the birth spins of black holes. |
| 资助项目 | Pappalardo Postdoctoral Fellowship at MIT ; NASA[NNX14AP92G] ; NSF at Northwestern University[AST-1716762] ; Ramon y Cajal Programme of the Ministry of Economy, Industry and Competitiveness of Spain ; COST Action GWverse[CA16104] ; Kavli Foundation ; DNRF ; NSF[PHY-1607611] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000482854800002 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/35558]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Rodriguez, Carl L. |
| 作者单位 | 1.Tata Inst Fundamental Res, Dept Astron & Astrophys, Homi Bhabha Rd, Mumbai, Maharashtra, India 2.TU Berlin, Zentrum Astron & Astrophys, Hardenbergstr 36, D-10623 Berlin, Germany 3.Chinese Acad Sci, Acad Math & Syst Sci, Inst Appl Math, Beijing 100190, Peoples R China 4.Kavli Inst Astron & Astrophy, Beijing 100871, Peoples R China 5.IEEC, Campus UAB,Carrer Can Magrans S-N, Barcelona 08193, Spain 6.CSIC, Inst Space Sci ICE, Campus UAB,Carrer Can Magrans S-N, Barcelona 08193, Spain 7.Northwestern Univ, Dept Phys & Astron, 2145 Sheridan Rd, Evanston, IL 60208 USA 8.Northwestern Univ, CIERA, 2145 Sheridan Rd, Evanston, IL 60208 USA 9.MIT Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave,37-664H, Cambridge, MA 02139 USA |
| 推荐引用方式 GB/T 7714 | Rodriguez, Carl L.,Zevin, Michael,Amaro-Seoane, Pau,et al. Black holes: The next generation-repeated mergers in dense star clusters and their gravitational-wave properties[J]. PHYSICAL REVIEW D,2019,100(4):15. |
| APA | Rodriguez, Carl L..,Zevin, Michael.,Amaro-Seoane, Pau.,Chatterjee, Sourav.,Kremer, Kyle.,...&Ye, Claire S..(2019).Black holes: The next generation-repeated mergers in dense star clusters and their gravitational-wave properties.PHYSICAL REVIEW D,100(4),15. |
| MLA | Rodriguez, Carl L.,et al."Black holes: The next generation-repeated mergers in dense star clusters and their gravitational-wave properties".PHYSICAL REVIEW D 100.4(2019):15. |
入库方式： OAI收割
来源：数学与系统科学研究院
浏览0
下载0
收藏0
其他版本
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。