Add to ORKGNumerical, two-dimensional, time-dependent hydrodynamical models of geometrically thick accretion discs around black holes are presented. Accretion flows with non-effective radiation cooling (ADAFs) can be both convectively stable or unstable depending on the value of the viscosity parameter \alpha. The high viscosity flows (\alpha~1) are stable and have a strong equatorial inflow and bipolar outflows. The low viscosity flows (\alpha<0.1) are convectively unstable and this induces quasi-periodic variability
We consider the radial structure of radiatively inefficient hydrodynamic accretion flows around blac...
Spherical and axisymmetric accretion onto black holes is discussed. Physical processes in various fa...
We study the thermal structure of the widely adopted two-dimensional advection dominated accretion f...
Numerical, two-dimensional, time-dependent hydrodynamical models of geometrically thick accretion di...
In the case of cold accretion disk, coupling between charge neutral gas and magnetic field is too we...
We characterize the nature of thin, axisymmetric, inviscid accretion flows of cold adiabatic gas wit...
Accretion disk instabilities are briefly reviewed. Some details are given to the short-wavelength th...
We present fully time-dependent solutions of accretion processes on black holes and compare them wit...
Results are presented from a time--dependent, numerical investigation of spherical accretion onto bl...
I present results from numerical simulations of gas dynamics outside luminous accretion disks in act...
We investigated the instability of advective accretion flow as a consequence of angular momentum tra...
We describe hot, optically-thin solutions for one-temperature accretion disks around black holes. We...
We investigate the thermal stability of the outer layers of accretion discs in which the local visco...
An important question is what fraction of gas available at the outer boundary can finally fall on to...
We report on a numerical study of viscous fluid accretion onto a black hole. The flow is axisymmetri...
We consider the radial structure of radiatively inefficient hydrodynamic accretion flows around blac...
Spherical and axisymmetric accretion onto black holes is discussed. Physical processes in various fa...
We study the thermal structure of the widely adopted two-dimensional advection dominated accretion f...
Numerical, two-dimensional, time-dependent hydrodynamical models of geometrically thick accretion di...
In the case of cold accretion disk, coupling between charge neutral gas and magnetic field is too we...
We characterize the nature of thin, axisymmetric, inviscid accretion flows of cold adiabatic gas wit...
Accretion disk instabilities are briefly reviewed. Some details are given to the short-wavelength th...
We present fully time-dependent solutions of accretion processes on black holes and compare them wit...
Results are presented from a time--dependent, numerical investigation of spherical accretion onto bl...
I present results from numerical simulations of gas dynamics outside luminous accretion disks in act...
We investigated the instability of advective accretion flow as a consequence of angular momentum tra...
We describe hot, optically-thin solutions for one-temperature accretion disks around black holes. We...
We investigate the thermal stability of the outer layers of accretion discs in which the local visco...
An important question is what fraction of gas available at the outer boundary can finally fall on to...
We report on a numerical study of viscous fluid accretion onto a black hole. The flow is axisymmetri...
We consider the radial structure of radiatively inefficient hydrodynamic accretion flows around blac...
Spherical and axisymmetric accretion onto black holes is discussed. Physical processes in various fa...
We study the thermal structure of the widely adopted two-dimensional advection dominated accretion f...