http://arxiv.org/abs/1312.6822
We propose a simple model for an optically thick radiative torus in thermal equilibrium around a Kerr black hole. The hydrodynamics structure, which is not affected by the radiation field, is the same as for the so–called polish doughnuts. Under the assumption of isentropic fluid and polytropic equation of state, a simple stationary and axisymmetric solution to the relativistic radiation hydrodynamics equations is possible, for which the thermal equilibrium temperature of the torus scales like the specific enthalpy. The astrophysical relevance of the model is briefly discussed.
Wed, 25 Dec 13
8/23
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