Accretion Flows: Aspects of Gas Dynamic Modeling

Details Accretion Flows: Aspects of Gas Dynamic Modeling Accretion Flows: Aspects of Gas Dynamic Modeling

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ap%26ss.274..275p&link_type=abstract

Astrophysics and Space Science, v. 274, Issue 1/2, p. 275-284 (2000).

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

We present our view on the application of numerical models to accretion flows in astrophysics. Special attention is paid to the problem of existence of steady-state solutions in time-dependent calculations and to origin of numerically induced instabilities. The problem is considered of the supersonic wind accretion onto gravitating objects. We also present the results of the gas dynamic simulation of accretion on a body imitating the shape of the star magnetosphere with holes in its polar regions. This shape can occur as a result of the cusp disintegration owing to theRayleigh-Taylor instability in the equatorial region of the magnetosphere.

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