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Pseudo-Schwarzschild Description of Accretion-Powered Spherical Outflow
Tapas Kumar Das
Using two different pseudo-Schwarzschild potentials proposed by Artemova et. al, we formulate and solve the equations governing spherically symmetric transonic inflow and out…
A simultaneous solution scheme for coupled transonic accretion-wind systems
Tapas Kumar Das
We discuss a {\it non-self-similar analytical model} capable of explaining the formation of accretion-powered galactic and extra-galactic jets.
On the Formation of Accretion-powered Galactic and Extra-galactic Outflows
Tapas Kumar Das
Though widely observed to be emanating from a variety of astrophysical sources, the underlying physical mechanism behind the formation of galactic and extragalactic outflows is sti…
Generalized Shock Solutions for Hydrodynamic Black Hole Accretion
Tapas Kumar Das
For the first time, {\it all} available pseudo-Schwarzschild potentials are exhaustively used to investigate the possibility of shock formation in hydrodynamic, invicid, black hole…
Accretion powered spherical wind in general relativity
Tapas Kumar Das
Using full general relativistic calculations, we investigate the possibility of generation of mass outflow from spherical accretion onto non-rotating black holes. Introducing a rel…
On Some Transonic Aspects of General Relativistic Spherical Accretion onto Schwarzschild Black Holes
Tapas Kumar Das
The equations governing general relativistic, spherically symmetric, hydrodynamic accretion of polytropic fluid onto black holes are solved in Schwarzschild metric to investigate s…