Innermost parts of accretion disks are thermally and secularly stable

Details Innermost parts of accretion disks are thermally and secularly stable Innermost parts of accretion disks are thermally and secularly stable

Nov 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981natur.294..235a&link_type=abstract

Nature, vol. 294, Nov. 19, 1981, p. 235, 236.

Astronomy and Astrophysics

Astronomy

36

Astronomical Models, Black Holes (Astronomy), Rotating Disks, Stellar Mass Accretion, Thermal Stability, Active Galactic Nuclei, Giant Stars, Quasars, Relativistic Theory, Roche Limit, Secular Variations, X Ray Sources

Scientific paper

Evidence is presented for the view that such astronomical objects as quasars, active galactic nuclei, Cyg X-1, and SS433, can be explained by accretion disks orbiting black holes. The instabilities of such models, such as the stipulated thermal and secular instability of the innermost parts of all accretion disks, appear to conflict with observations and have prompted a search for a stabilizing mechanism operating in the innermost parts of the disks. It is shown that such a mechanism, of general relativistic origin, is (1) purely mechanical, operating independently of viscosity and other microphysical processes, and (2) similar to the mass loss caused by Roche lobe overflow in close binaries.

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