Radiation-hydrodynamic calculation of sub-Eddington accretion disks

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/165859· OSTI ID:5438733

Eggum, G E; Coroniti, F V; Katz, J I

The results of self-consistent, azimuthally symmetric, radiation-hydrodynamic calculations of subcritical accretion disks about a Newtonian pseudo-black hole are reported. Energy generation is described by a kinematic viscosity law and a modified alpha-disk model. A disk with constant kinematic viscosity settles to a nearly steady state which approximates a thin disk solution. Its unstable vertical distribution of entropy leads to mild subsonic correction. The alpha-disk is unstable, as expected, and collapses to a thin cold sheet with low accretion rate and low luminosity. 26 references.

• Research Organization: California Univ., Los Angeles (USA); Washington Univ., Saint Louis, MO (USA)
• OSTI ID: 5438733
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 323; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCRETION DISKS
BLACK HOLES
FINITE DIFFERENCE METHOD
FLUID MECHANICS
GRAVITATIONAL COLLAPSE
HYDRODYNAMICS
ITERATIVE METHODS
MECHANICS
NUMERICAL SOLUTION
SELF-CONSISTENT FIELD
STEADY-STATE CONDITIONS