Grand Unified Model of Accretion Disks Around Black Holes: the Sub-Keplerian Paradigm

Details Grand Unified Model of Accretion Disks Around Black Holes: the Sub-Keplerian Paradigm Grand Unified Model of Accretion Disks Around Black Holes: the Sub-Keplerian Paradigm

1995-02-06

arxiv.org/abs/astro-ph/9502040v1

Astronomy and Astrophysics

Astrophysics

4 pages, Latex. Two figures available upon request. Proceedings of 17th Texas Symposium (Munich, Dec. 1994)

Scientific paper

We show that viscous, transonic accretion disks which start with sub-Keplerian angular momentum at the outer boundary reproduce the features of the so-called thick, thin, slim and other accretion disk models depending upon the accretion rates and viscosity parameters. These disks are advection dominated in the pre-shock region and rotation dominated in the post-shock region when viscosity is less than a critical value. For a higher viscosity the shock disappears, and the flow has significant radial velocity only close to the black hole.

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