A Method to Search for Black Hole Candidates with Giant Companions by LAMOST
文献类型：期刊论文
| 作者 | Gu,Wei-Min1; Mu,Hui-Jun1; Fu,Jin-Bo1; Zheng,Ling-Lin1; Yi,Tuan1; Bai,Zhong-Rui3; Wang,Song3 ; Zhang,Hao-Tong3; Lei,Ya-Juan3; Bai,Yu3
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| 刊名 | The Astrophysical Journal Letters
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| 出版日期 | 2019-02-19 |
| 卷号 | 872期号:2 |
| 关键词 | binaries: general stars: black holes stars: kinematics and dynamics |
| ISSN号 | 2041-8205 |
| DOI | 10.3847/2041-8213/ab04f0 |
| 英文摘要 | Abstract We propose a method to search for stellar-mass black hole (BH) candidates with giant companions from spectroscopic observations. Based on the stellar spectra of Large sky Area Multi-Object fiber Spectroscopic Telescope (LAMOST) Data Release 6, we obtain a sample of seven giants in binaries with large radial velocity variation ΔVR?>?80 km s?1. With the effective temperature, surface gravity, and metallicity provided by LAMOST, and the parallax given by Gaia, we can estimate the mass and radius of the giant, and therefore evaluate the possible mass of the optically invisible star in the binary. We show that the sources in our sample are potential BH candidates, and are worthy of dynamical measurement by further spectroscopic observations. Our method may be particularly valid for the selection of BH candidates in binaries with unknown orbital periods. |
| 语种 | 英语 |
| WOS记录号 | IOP:2041-8205-872-2-AB04F0 |
| 出版者 | The American Astronomical Society |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/25116]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People’s Republic of China; guwm@xmu.edu.cn 2.College of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China 3.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Gu,Wei-Min,Mu,Hui-Jun,Fu,Jin-Bo,et al. A Method to Search for Black Hole Candidates with Giant Companions by LAMOST[J]. The Astrophysical Journal Letters,2019,872(2). |
| APA | Gu,Wei-Min.,Mu,Hui-Jun.,Fu,Jin-Bo.,Zheng,Ling-Lin.,Yi,Tuan.,...&Liu,Jifeng.(2019).A Method to Search for Black Hole Candidates with Giant Companions by LAMOST.The Astrophysical Journal Letters,872(2). |
| MLA | Gu,Wei-Min,et al."A Method to Search for Black Hole Candidates with Giant Companions by LAMOST".The Astrophysical Journal Letters 872.2(2019). |
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