Dynamical evolution of rotating dense stellar systems with embedded black holes
نویسنده
چکیده
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 stellar component in differential rotating flattened systems is followed. The interplay between velocity diffusion due to relaxation and black hole star accretion is followed together with cluster rotation using 2D+1 Fokker Planck numerical methods. The models can reproduce the Bahcall-Wolf f ∝ E (ρ ∝ r) cusp inside the zone of influence of the black hole. Angular momentum transport and star accretion support the development of central rotation in relaxation time scales. Gravogyro and gravothermal instabilities conduce the system to a faster evolution leading to shorter collapse times with respect to the non-rotating systems. We explore system dissolution due to mass loss due to a galaxy tidal field (e.g. globular clusters).
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