Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.187..883f&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 187, June 1979, p. 883-904.
Astronomy and Astrophysics
Astronomy
24
Black Holes (Astronomy), Debris, Galactic Evolution, Star Clusters, Cosmology, Polytropic Processes, Radiation Pressure, Space Density
Scientific paper
A semiquantitative study of the evolution of debris of tidal disruption by a massive black hole in a dense star cluster is presented for the case in which the typical interval between disruptions is greater than the time-scale in which the fate of the debris is determined. It is argued that when the mass of the hole does not exceed 10 to the 3rd solar masses, such debris takes the form of annular clouds whose equilibrium is governed by gravity, rotation and radiation pressure. The structure of these clouds is assumed to be polytrophic. Results show that the evolution of the debris is primarily dependent on the relative importance of viscous effects to cooling; the fraction of mass accreted decreases with increasing effective viscosity. The small fraction of mass accreted per tidal disruption presents a serious obstacle to the growth of a 'seed' black hole.
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