The effect of radiation pressure on accretion disks around black holes

Details The effect of radiation pressure on accretion disks around black holes The effect of radiation pressure on accretion disks around black holes

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...206..295m&link_type=abstract

Astrophysical Journal, vol. 206, May 15, 1976, pt. 1, p. 295-300.

Astronomy and Astrophysics

Astronomy

32

Black Holes (Astronomy), Mass Transfer, Pressure Effects, Radiation Pressure, Astronomical Models, Differential Equations, Energy Transfer, Kinetic Energy, Rotating Disks, Steady State, Stellar Luminosity

Scientific paper

Steady-state disk accretion on to a black hole is studied for high accretion rates, where the dynamic effect of radiation pressure is important. The rotation of the disk is not assumed to be Keplerian, but is considered as an unknown in the Newtonian dynamic equation. The problem is reduced to a set of two differential equations which are solved numerically. It is found that steady-state solutions without mass-outflow exist for accretion rates greater than the critical rate. The radiated luminosity, however, is always of the order of the Eddington luminosity. For increasing accretion rates, the kinetic energy swallowed by the hole and the size of the radiating region increase

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