Transition from a Shakura-Sunyaev disk to an advection-dominated accretion flow

This paper studies the mechanism of transition from a Shakura-Sunyaev disk to an advection-dominated accretion flow in more details, taking into consideration two-temperature plasma accretion flows with bremsstrahlung and synchrotron radiation and Comptonization. The results further show that such a transition is realizable for a quite wide range of physical conditions.