Classification of Tidal Disruption Events Based on Stellar Orbital Properties
文献类型：期刊论文
| 作者 | Hayasaki, Kimitake4; Zhong, Shiyan5; Li, Shuo6,7; Berczik, Peter2,6,7,8; Spurzem, Rainer1,3,6,7,8 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-03-10 |
| 卷号 | 855期号:2页码:12 |
| ISSN号 | 0004-637X |
| 关键词 | accretion, accretion disks black hole physics galaxies: nuclei galaxies: star clusters: general methods: numerical stars: kinematics and dynamics |
| DOI | 10.3847/1538-4357/aab0a5 |
| 英文摘要 | We study the rates of tidal disruption of stars on bound to unbound orbits by intermediate-mass to supermassive black holes using high-accuracy direct N-body experiments. Stars from the star cluster approaching the black hole can have three types of orbit: eccentric, parabolic, and hyperbolic. Since the mass fallback rate shows different variabilities depending on the orbital type, we can classify tidal disruption events (TDEs) into three main categories: eccentric, parabolic, and hyperbolic. The respective TDEs are characterized by two critical values of the orbital eccentricity: the lower critical eccentricity is the one below which stars on eccentric orbits cause finite, intense accretion, and the upper critical eccentricity is the one above which stars on hyperbolic orbits cause no accretion. Moreover, we find that parabolic TDEs can be divided into three subclasses: precisely parabolic, marginally eccentric, and marginally hyperbolic. We analytically derive that the mass fallback rate of marginally eccentric TDEs can be flatter and slightly higher than the standard fallback rate proportional to t(-5/3), whereas it can be flatter and lower for marginally hyperbolic TDEs. We confirm using N-body experiments that only a few eccentric, precisely parabolic, and hyperbolic TDEs can occur in a spherical stellar system with a single intermediate-mass to supermassive black hole. A substantial fraction of the stars approaching the black hole would cause marginally eccentric or marginally hyperbolic TDEs. |
| WOS关键词 | SUPERMASSIVE BLACK-HOLE ; N-BODY SIMULATIONS ; X-RAY OUTBURSTS ; GALACTIC NUCLEI ; STAR-CLUSTERS ; FLARE ; CANDIDATE ; RATES ; JET |
| 资助项目 | Korea Astronomy and Space Science Institute (KASI) under the RD program ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education[NRF-2017R1D1A1B03028580] ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists[2009S1-5] ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; National Natural Science Foundation of China[NSFC 11603067] ; National Natural Science Foundation of China[11303039] ; National Natural Science Foundation of China[11673032] ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; Ministry of Finance of the People's Republic of China[ZDYZ2008-2] ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS[XDB23040100] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000427634000007 |
| 资助机构 | Korea Astronomy and Space Science Institute (KASI) under the RD program ; Korea Astronomy and Space Science Institute (KASI) under the RD program ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; Ministry of Finance of the People's Republic of China ; Ministry of Finance of the People's Republic of China ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS ; Korea Astronomy and Space Science Institute (KASI) under the RD program ; Korea Astronomy and Space Science Institute (KASI) under the RD program ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; Ministry of Finance of the People's Republic of China ; Ministry of Finance of the People's Republic of China ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS ; Korea Astronomy and Space Science Institute (KASI) under the RD program ; Korea Astronomy and Space Science Institute (KASI) under the RD program ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; Ministry of Finance of the People's Republic of China ; Ministry of Finance of the People's Republic of China ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS ; Korea Astronomy and Space Science Institute (KASI) under the RD program ; Korea Astronomy and Space Science Institute (KASI) under the RD program ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists ; Chinese Academy of Sciences (CAS) through the Silk Road Project at NAOC, through the CAS Visiting Professorship for Senior International Scientists ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; Chinese Academy of Sciences (CAS) through the "Qianren" special foreign experts programme of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; NASU under the Main Astronomical Observatory GRID/GPU computing cluster project ; Ministry of Finance of the People's Republic of China ; Ministry of Finance of the People's Republic of China ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS ; Strategic Priority Research Program (PilotB) "Multi-waveband Gravitational Wave Universe" of the CAS |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/37278]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Hayasaki, Kimitake |
| 作者单位 | 1.FIAS, Ruth Moufang Str 1, D-60438 Frankfurt, Germany 2.Natl Acad Sci Ukraine, Main Astron Observ, 27 Akad Zabolotnoho St, UA-03680 Kiev, Ukraine 3.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 4.Chungbuk Natl Univ, Dept Astron & Space Sci, Cheongju 361763, South Korea 5.Chinese Acad Sci, Yunnan Observ, 396 Yang Fang Wang, Kunming 650216, Yunnan, Peoples R China 6.Chinese Acad Sci, Natl Astron Observ China, 20A Datun Rd, Beijing 100012, Peoples R China 7.Chinese Acad Sci, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China 8.Heidelberg Univ, Astron Rechen Inst, Zentrum Astron, Monchhofstr 12-14, D-69120 Heidelberg, Germany |
| 推荐引用方式 GB/T 7714 | Hayasaki, Kimitake,Zhong, Shiyan,Li, Shuo,et al. Classification of Tidal Disruption Events Based on Stellar Orbital Properties[J]. ASTROPHYSICAL JOURNAL,2018,855(2):12. |
| APA | Hayasaki, Kimitake,Zhong, Shiyan,Li, Shuo,Berczik, Peter,&Spurzem, Rainer.(2018).Classification of Tidal Disruption Events Based on Stellar Orbital Properties.ASTROPHYSICAL JOURNAL,855(2),12. |
| MLA | Hayasaki, Kimitake,et al."Classification of Tidal Disruption Events Based on Stellar Orbital Properties".ASTROPHYSICAL JOURNAL 855.2(2018):12. |
入库方式： OAI收割
来源：国家天文台
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