Axisymmetric accretion near compact objects

Journal Article · Fri Apr 01 04:00:00 EST 1977 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/155145· OSTI ID:7224085

Wolfson, R

A two-dimensional gas-dynamic theory is developed to describe axisymmetric accretion flows over a region much smaller than the accretion radius. In all cases there is found a tendency for a high-density region to develop around the accretion axis. Asymptotic solutions are developed which show that flows with shock waves attached to the gravitating mass point are possible only when the specific heat ratio ..gamma.. is less than 5/3. The equations are solved numerically and the effect of ..gamma.. on the flow structure determined. It is suggested that shock detachment occurs when ..gamma..=5/3.

• Research Organization: Department of Physics and Astronomy, Dartmouth College
• OSTI ID: 7224085
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 213:1; 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
FLUID FLOW
FLUID MECHANICS
GAS FLOW
GRAVITATIONAL FIELDS
HYDRODYNAMICS
MECHANICS
PHYSICAL PROPERTIES
RADIAL VELOCITY
SHOCK WAVES
SPECIFIC HEAT
STAR ACCRETION
STAR EVOLUTION
THERMODYNAMIC PROPERTIES
VELOCITY