The Spin of the Black Hole GRS 1716-249 Determined from the Hard Intermediate State
文献类型：期刊论文
| 作者 | Tao,Lian4; Tomsick,John A.3; Qu,Jinlu4; Zhang,Shu4; Zhang,Shuangnan1,2,4; Bu,Qingcui4 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2019-12-18 |
| 卷号 | 887期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | Accretion X-ray binary stars Rotating black holes Black Hole physics |
| DOI | 10.3847/1538-4357/ab5282 |
| 英文摘要 | Abstract We present three simultaneous/quasi-simultaneous NuSTAR and Swift data sets of the black hole (BH) GRS?1716-249 in its hard intermediate state. The accretion disk in this state may have reached the innermost stable circular orbit, and the NuSTAR spectra show a broad relativistic iron line and a strong Compton hump. To measure the BH spin, we construct a joint model consisting of a relativistic disk model kerrbb and a reflection model relxill, to fit the continuum and the reflection components, respectively. By applying this model to each data set independently, a consistent result is obtained on the BH spin and the disk inclination. The BH spin is a*???0.92, and the inclination angle (i) is around 40°–50°, based on the measurements of all data sets. In the third data set, a high BH mass (MBH) is strongly disfavored by the spectral fits. By unfreezing the BH mass, we find a*?>?0.92, , and MBH? |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-887-2-AB5282 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/28676]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.University of the Chinese Academy of Sciences, Beijing, People’s Republic of China 2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, People’s Republic of China 3.Space Sciences Laboratory, 7 Gauss Way, University of California, Berkeley, CA 94720-7450, USA 4.Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People’s Republic of China |
| 推荐引用方式 GB/T 7714 | Tao,Lian,Tomsick,John A.,Qu,Jinlu,et al. The Spin of the Black Hole GRS 1716-249 Determined from the Hard Intermediate State[J]. The Astrophysical Journal,2019,887(2). |
| APA | Tao,Lian,Tomsick,John A.,Qu,Jinlu,Zhang,Shu,Zhang,Shuangnan,&Bu,Qingcui.(2019).The Spin of the Black Hole GRS 1716-249 Determined from the Hard Intermediate State.The Astrophysical Journal,887(2). |
| MLA | Tao,Lian,et al."The Spin of the Black Hole GRS 1716-249 Determined from the Hard Intermediate State".The Astrophysical Journal 887.2(2019). |
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来源：国家天文台
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