The stability of accretion flow near a black hole

Details The stability of accretion flow near a black hole The stability of accretion flow near a black hole

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994cha%26a..18..129c&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 18, Issue 2, p. 129-137.

Astronomy and Astrophysics

Astrophysics

Accretion-Accretion Disk-Black Holes

Scientific paper

The radial linear stability of a transonic α-viscosity accretion disk around a black hole is investigated using a polytropic equation of state. Radial velocity of the accretion flow is considered when deriving the perturbed dispersion relation. The accretion flow becomes unstable when the viscosity parameter α is greater than a critical value αc which is determined by the polytropic index n and the radial velocity of the flow.

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