Radiative Shocks in Rotating Accretion Flows around Black Holes

Details Radiative Shocks in Rotating Accretion Flows around Black Holes Radiative Shocks in Rotating Accretion Flows around Black Holes

2004-03-04

arxiv.org/abs/astro-ph/0403115v2

Astronomy and Astrophysics

Astrophysics

11pages, 5 Postscript figures, to appear in PASJ, Vol.56, No.3, 2004

Scientific paper

It is well known that the rotating inviscid accretion flows with adequate injection parameters around black holes could form shock waves close to the black holes, after the flow passes through the outer sonic point and can be virtually stopped by the centrifugal force. We examine numerically such shock waves in 1D and 2D accretion flows, taking account of cooling and heating of the gas and radiation transport. The numerical results show that the shock location shifts outward compared with that in the adiabatic solutions and that the more rarefied ambient density leads to the more outward shock location. In the 2D-flow, we find an intermediate frequency QPO behavior of the shock location as is observed in the black hole candidate GRS 1915+105.

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