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Direct N-body simulation of the Galactic centre

文献类型：期刊论文

作者Panamarev, Taras1,2,3,4,9; Just, Andreas1; Spurzem, Rainer1,3,4,5,10; Berczik, Peter1,3,4,6; Wang, Long7,8; Sedda, Manuel Arca1
刊名MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期2019-04-01
卷号484期号:3页码:3279-3290
关键词black hole physics stars: kinematics and dynamics pulsars: general
ISSN号0035-8711
DOI10.1093/mnras/stz208
英文摘要We study the dynamics and evolution of the Milky Way nuclear star cluster performing a high-resolution direct one-million-body simulation. Focusing on the interactions between such stellar systems and the central supermassive black hole, we find that different stellar components adapt their overall distribution differently. After 5 Gyr, stellar mass black holes are characterized by a spatial distribution with power-slope -1.75, fully consistent with the prediction of Bahcall-Wolf pioneering work. Using the vast amount of data available, we infer the rate for tidal disruption events, being 4 x 10(-6) per yr, and estimate the number of objects that emit gravitational waves during the phases preceding the accretion on to the super-massive black hole, similar to 270 per Gyr. We show that some of these sources could form extreme mass-ratio inspirals. We follow the evolution of binary stars population, showing that the initial binary fraction of 5 per cent drops down to 2.5 per cent inside the inner parsec. Also, we explored the possible formation of binary systems containing a compact object, discussing the implications for millisecond pulsars formation and the development of Ia Supernovae.
WOS关键词MASSIVE BLACK-HOLE ; ACCRETION-INDUCED COLLAPSE ; NUCLEAR STAR CLUSTER ; X-RAY BINARIES ; GLOBULAR-CLUSTER ; TIDAL DISRUPTION ; MILLISECOND PULSARS ; STELLAR ORBITS ; CENTRAL PARSEC ; GAMMA-RAY
资助项目Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan[BR05336383] ; German Research Foundation (DFG)[Sonderforschungsbereich SFB 881] ; Alexander von Humboldt Foundation ; Federal Ministry for Education and Research ; National Science Foundation of China (NSFC)[11673032] ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences[XDB23040100] ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks'[114A11KYSB20170015] ; President's International Fellowship for Visiting Scientists program of CAS ; Volkswagen Foundation (VW) under the Trilateral Partnerships[90411] ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW)[I84678/84680] ; Gauss Centre for Supercomputing (GSC) e.V. ; International Space Science Institute, Bern, Switzerland[393]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000462410300029
出版者OXFORD UNIV PRESS
资助机构Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan ; Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan ; German Research Foundation (DFG) ; German Research Foundation (DFG) ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Federal Ministry for Education and Research ; Federal Ministry for Education and Research ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks' ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks' ; President's International Fellowship for Visiting Scientists program of CAS ; President's International Fellowship for Visiting Scientists program of CAS ; Volkswagen Foundation (VW) under the Trilateral Partnerships ; Volkswagen Foundation (VW) under the Trilateral Partnerships ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW) ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW) ; Gauss Centre for Supercomputing (GSC) e.V. ; Gauss Centre for Supercomputing (GSC) e.V. ; International Space Science Institute, Bern, Switzerland ; International Space Science Institute, Bern, Switzerland ; Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan ; Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan ; German Research Foundation (DFG) ; German Research Foundation (DFG) ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Federal Ministry for Education and Research ; Federal Ministry for Education and Research ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks' ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks' ; President's International Fellowship for Visiting Scientists program of CAS ; President's International Fellowship for Visiting Scientists program of CAS ; Volkswagen Foundation (VW) under the Trilateral Partnerships ; Volkswagen Foundation (VW) under the Trilateral Partnerships ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW) ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW) ; Gauss Centre for Supercomputing (GSC) e.V. ; Gauss Centre for Supercomputing (GSC) e.V. ; International Space Science Institute, Bern, Switzerland ; International Space Science Institute, Bern, Switzerland ; Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan ; Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan ; German Research Foundation (DFG) ; German Research Foundation (DFG) ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Federal Ministry for Education and Research ; Federal Ministry for Education and Research ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks' ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks' ; President's International Fellowship for Visiting Scientists program of CAS ; President's International Fellowship for Visiting Scientists program of CAS ; Volkswagen Foundation (VW) under the Trilateral Partnerships ; Volkswagen Foundation (VW) under the Trilateral Partnerships ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW) ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW) ; Gauss Centre for Supercomputing (GSC) e.V. ; Gauss Centre for Supercomputing (GSC) e.V. ; International Space Science Institute, Bern, Switzerland ; International Space Science Institute, Bern, Switzerland ; Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan ; Ministry of Defense and Aerospace Industry of the Republic of Kazakhstan ; German Research Foundation (DFG) ; German Research Foundation (DFG) ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Federal Ministry for Education and Research ; Federal Ministry for Education and Research ; National Science Foundation of China (NSFC) ; National Science Foundation of China (NSFC) ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences ; Strategic Priority Research Program (Pilot B) 'Multi-wavelength gravitational wave universe' of the Chinese Academy of Sciences ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks' ; China-Kazakhstan international cooperation project of Chinese Academy of Sciences (CAS) 'Evolution of star clusters in galactic nuclei with supermassive black holes and central accretion disks' ; President's International Fellowship for Visiting Scientists program of CAS ; President's International Fellowship for Visiting Scientists program of CAS ; Volkswagen Foundation (VW) under the Trilateral Partnerships ; Volkswagen Foundation (VW) under the Trilateral Partnerships ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW) ; project GRACE 2: 'Scientific simulations using programmable hardware' (VW) ; Gauss Centre for Supercomputing (GSC) e.V. ; Gauss Centre for Supercomputing (GSC) e.V. ; International Space Science Institute, Bern, Switzerland ; International Space Science Institute, Bern, Switzerland
源URL[http://ir.bao.ac.cn/handle/114a11/25735]  
专题中国科学院国家天文台
通讯作者Panamarev, Taras; Spurzem, Rainer
作者单位1.Heidelberg Univ, Astron Rechen Inst, Zentrum Astron, Monchhofstr 12-14, D-69120 Heidelberg, Germany
2.Fesenkov Astrophys Inst, Observ 23, Alma Ata 050020, Kazakhstan
3.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China
5.Peking Univ, Kavli Inst Astron & Astrophys, 5 Yiheyuan Rd, Beijing 100871, Peoples R China
6.Natl Acad Sci Ukraine, Main Astron Observ, 27 Akad Zabolotnoho St, UA-03680 Kiev, Ukraine
7.Argelander Inst Astron, Hugel 71, D-53121 Bonn, Germany
8.RIKEN, Ctr Computat Sci, Chuo Ku, 7-1-26 Minatojima Minami Machi, Kobe, Hyogo 6500047, Japan
9.Univ Heidelberg IMPRS HD, Int Max Planck Res Sch Astron & Cosm Phys, Heidelberg, Germany
10.FIAS, Frankfurt, Germany
推荐引用方式
GB/T 7714		 Panamarev, Taras,Just, Andreas,Spurzem, Rainer,et al. Direct N-body simulation of the Galactic centre[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,484(3):3279-3290.
APA Panamarev, Taras,Just, Andreas,Spurzem, Rainer,Berczik, Peter,Wang, Long,&Sedda, Manuel Arca.(2019).Direct N-body simulation of the Galactic centre.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,484(3),3279-3290.
MLA Panamarev, Taras,et al."Direct N-body simulation of the Galactic centre".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 484.3(2019):3279-3290.

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