Abstract

We study the problem of standing shocksin viscous accretion flows around black holes. We parameterize such a flowwith two physical constants, namely the specific angular momentum accretedby the black hole j and the energy quantity K. By providing the globaldependence of shock formation in the j−K parameter space, we showthat a significant parameter region can ensure solutions withshocks of different types, namely Rankine-Hugoniot shocks, isothermal shocks,and more realistically, mixed shocks.

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