Relativistic accretion - The optically thick case

Details Relativistic accretion - The optically thick case Relativistic accretion - The optically thick case

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...240..235g&link_type=abstract

Astrophysical Journal, Part 1, vol. 240, Aug. 15, 1980, p. 235-241.

Astronomy and Astrophysics

Astronomy

9

Black Holes (Astronomy), Galactic Nuclei, Optical Thickness, Relativity, Stellar Mass Accretion, Binary Stars, Gas Flow, Luminous Intensity, Radiative Transfer, Relativistic Velocity, Supersonic Flow

Scientific paper

The process of steady-state spherical accretion onto black holes when the infalling gas is optically thick to the outgoing radiation is investigated. The transfer of radiation is treated in the diffusion approximation, and the calculation is done relativistically so that the region near the Schwarzschild radius may be included. The luminosity is taken as a free parameter. It is found that, in cases of sufficiently high luminosity and mass flux, a radiation-broadened shock must form and prevent steady supersonic flow through the Schwarzschild radius. Fluctuations on time scales of microseconds to milliseconds could result.

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