1999/09/29 by Menas Kafatos, Kafatos, Menas, Prasad Subramanian +1
Physics and Astronomy · #Astrophysics (astro-ph) #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9909498
to appear in "The Neutron Star - Black Hole Connection", proceedings of NATO Advanced Study Institute, 7 - 18 June 1999, Elounda, Crete, Greece
arxiv created 1999/09/29 · arxiv updated 2009/12/01
We examine here the inner region accretion flows onto black holes. A variety of models are presented. We also discuss viscosity mechanisms under a variety of circumstances, for standard accretion disks onto galactic black holes and supermassive black holes and hot accretion disks. Relevant work is presented here on unified aspects of disk accretion onto supermassive black holes and the possible coupling of thick disks to beams in the inner regions. We also explore other accretion flow scenarios. We conclude that a variety of scenarios yield high temperatures in the inner flows and that viscosity is likely not higher than alpha ∼ 0.01.