INTERACTION OF RECOILING SUPERMASSIVE BLACK HOLES WITH STARS IN GALACTIC NUCLEI
文献类型：期刊论文
| 作者 | Li, Shuo1,2 ; Liu, F. K.1; Berczik, Peter2,3,4; Chen, Xian5; Spurzem, Rainer2,3,5
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2012-03-20 |
| 卷号 | 748期号:1 |
| 关键词 | galaxies: active galaxies: evolution galaxies: kinematics and dynamics galaxies: nuclei methods: numerical |
| 英文摘要 | Supermassive black hole binaries (SMBHBs) are the products of frequent galaxy mergers. The coalescence of the SMBHBs is a distinct source of gravitational wave (GW) radiation. The detections of the strong GW radiation and their possible electromagnetic counterparts are essential. Numerical relativity suggests that the post-merger supermassive black hole (SMBH) gets a kick velocity up to 4000 km s(-1) due to the anisotropic GW radiations. Here, we investigate the dynamical coevolution and interaction of the recoiling SMBHs and their galactic stellar environments with one million direct N-body simulations including the stellar tidal disruption by the recoiling SMBHs. Our results show that the accretion of disrupted stars does not significantly affect the SMBH dynamical evolution. We investigate the stellar tidal disruption rates as a function of the dynamical evolution of oscillating SMBHs in the galactic nuclei. Our simulations show that most stellar tidal disruptions are contributed by the unbound stars and occur when the oscillating SMBHs pass through the galactic center. The averaged disruption rate is similar to 10(-6) M-circle dot yr(-1), which is about an order of magnitude lower than that by a stationary SMBH at similar galactic nuclei. Our results also show that a bound star cluster is around the oscillating SMBH of about similar to 0.7% the black hole mass. In addition, we discover a massive cloud of unbound stars following the oscillating SMBH. We also investigate the dependence of the results on the SMBH masses and density slopes of the galactic nuclei. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301347500065 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6338]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Peking Univ, Dept Astron, Beijing 100871, Peoples R China 2.Heidelberg Univ, Astron Rech Inst, Zentrum Astron, D-69120 Heidelberg, Germany 3.Chinese Acad Sci, Natl Astron Observ China, Beijing 100012, Peoples R China 4.Natl Acad Sci Ukraine, Main Astron Observ, UA-03680 Kiev, Ukraine 5.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shuo,Liu, F. K.,Berczik, Peter,et al. INTERACTION OF RECOILING SUPERMASSIVE BLACK HOLES WITH STARS IN GALACTIC NUCLEI[J]. ASTROPHYSICAL JOURNAL,2012,748(1). |
| APA | Li, Shuo,Liu, F. K.,Berczik, Peter,Chen, Xian,&Spurzem, Rainer.(2012).INTERACTION OF RECOILING SUPERMASSIVE BLACK HOLES WITH STARS IN GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL,748(1). |
| MLA | Li, Shuo,et al."INTERACTION OF RECOILING SUPERMASSIVE BLACK HOLES WITH STARS IN GALACTIC NUCLEI".ASTROPHYSICAL JOURNAL 748.1(2012). |
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来源：国家天文台
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