18 citations
4 papers
Effective sound speed in relativistic accretion discs around Schwarzschild black holes
Md Arif Shaikh, Susovan Maity, Sankhasubhra Nag +1
For low angular momentum axially symmetric accretion flow maintained in hydrostatic equilibrium along the vertical direction, the value of the Mach number at the critical points de…
Axially Symmetric Accretion of Fractal Medium onto Rotating Black Holes and the emergence of the Acoustic Manifold
Supriyo Majumder, Tapas K. Das, Sankhasubhra Nag
For three different geometric configurations of matter and two different thermodynamic equations of state, low angular momentum, multi-transonic, axially symmetric accretion flow o…
Influence of the black hole spin on the chaotic particle dynamics within a dipolar halo
Sankhasubhra Nag, Siddhartha Sinha, Deepika B. Ananda +1
We investigate the role of the spin angular momentum of astrophysical black holes in controlling the special relativistic chaotic dynamics of test particles moving under the influe…
Model dependence of the multi-transonic behavior, stability properties and corresponding acoustic geometry for accretion onto a spinning black hole
Sonali Saha, Sharmistha Sen, Sankhasubhra Nag +2
Multi-transonic accretion for a spinning black hole has been compared among different disc geometries within post Newtonian pseudo potential framework. The variation of stationary…