Supercritical disk accretion with mass loss

We consider supercritical accretion onto a compact object when the accretio n rate exceeds its value derived from the Eddington limit: M-Edd = L-Edd/c( 2). We use the scenario that was proposed by Shakura and Sunyaev (1973) for the supercritical regime, according to which matter flows out of the gas-d isk surface under radiation pressure. An analytic solution of the accretion -disk structure is obtained for this scenario by using classical equations. For the first time, an attempt is made to construct a model for nonconserv ative supercritical accretion with advection. To this end, we develop a num erical scheme for calculating the structure of an advective disk with mass outflow. The goal of solving the problem of a supercritical disk with mass loss is to explain accreting sources with outflowing envelopes, for example , SS 433 and galactic nuclei. The structure and observational manifestation s of the envelope which forms around a supercritical disk are considered by taking into account bremsstrahlung absorption and Thomson scattering of ph otons.