Transonic Disk Accretion onto Black Holes.

Details Transonic Disk Accretion onto Black Holes. Transonic Disk Accretion onto Black Holes.

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982phdt........20t&link_type=abstract

Thesis (PH.D.)--STANFORD UNIVERSITY, 1982.Source: Dissertation Abstracts International, Volume: 42-11, Section: B, page: 4458.

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Scientific paper

The work presented in this thesis is the result of the combination of two separate lines of research on disk accretion onto black holes. In the first approach, a particular class of models, the prototype of which was advanced by Shapiro, Lightman, and Eardley (SLE, 1976), is studied. These models are effectively optically thin, gas-pressure-dominated, Coulomb-coupled, and cooled by unsaturated Comptonization of the electrons in the disk plasma. In the original SLE model, it is self-consistent to assume that the angular momentum distribution in the disk is Keplerian. However, we show that some of its generalizations require that the angular momentum distribution be non-Keplerian. The other line of research is to derive a basic theory for transonic (subsonic at infinity, supersonic at the horizon), geometrically-thin accretion disks. This theory is then applied to find the solution for the disk structures of the generalizations of the SLE model which do not admit a Keplerian solution.

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