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Dynamical evolution of rotating dense stellar systems with embedded black holes
Fiestas, J.1; Spurzem, R.1,2,3
2010-06-11
发表期刊MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷号405期号:1页码:194-208
摘要The evolution of self-gravitating rotating dense stellar systems (e.g. globular clusters, galactic nuclei) with embedded black holes is investigated. The interaction between the black hole and the stellar component in differentially rotating flattened systems is analysed. The interplay between velocity diffusion resulting from relaxation and black hole star accretion is investigated, together with cluster rotation, using 2D+1 (20 in space and time) Fokker-Planck numerical methods. The models can reproduce the Bahcall-Wolf solution f proportional to E1/4 (n proportional to r-7/4) inside the zone of influence of the black hole. Gravo-gyro and gravo-thermal instabilities cause the system to have a faster evolution, leading to shorter collapse times with respect to non-rotating systems. Angular momentum transport and star accretion support the development of central rotation on relaxation time-scales. We explore system dissolution as a result of mass loss in the presence of an external tidal field (e.g. for globular clusters in galaxies).
关键词Black Hole Physics Gravitation Stellar Dynamics Methods: Numerical Globular Clusters: General Galaxies: Nuclei
DOI10.1111/j.1365-2966.2010.16479.x
收录类别SCI
语种英语
WOS记录号WOS:000278313200038
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文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/7694
专题星系宇宙学研究部
作者单位1.Natl Astron Observ, Beijing 100012, Peoples R China
2.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China
3.Univ Heidelberg, Zentrum Astron, Astron Rechen Inst, D-69120 Heidelberg, Germany
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Fiestas, J.,Spurzem, R.. Dynamical evolution of rotating dense stellar systems with embedded black holes[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2010,405(1):194-208.
APA Fiestas, J.,&Spurzem, R..(2010).Dynamical evolution of rotating dense stellar systems with embedded black holes.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,405(1),194-208.
MLA Fiestas, J.,et al."Dynamical evolution of rotating dense stellar systems with embedded black holes".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 405.1(2010):194-208.
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