39 citations · 413 across the 33 of their papers we have counts for
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Quasi-viscous accretion flow -- I: Equilibrium conditions and asymptotic behaviour
Jayanta K. Bhattacharjee, Atri Bhattacharya, Tapas K. Das +1
In a novel approach to studying viscous accretion flows, viscosity has been introduced as a perturbative effect, involving a first-order correction in the -viscosity parameter.…
Perturbations on steady spherical accretion in Schwarzschild geometry
Tapan Naskar, Nabajit Chakravarty, Jayanta K. Bhattacharjee +1
The stationary background flow in the spherically symmetric infall of a compressible fluid, coupled to the space-time defined by the static Schwarzschild metric, has been subjected…
Critical properties of spherically symmetric accretion in a fractal medium
Nirupam Roy, Arnab K. Ray
Spherically symmetric transonic accretion of a fractal medium has been studied in both the stationary and the dynamic regimes. The stationary transonic solution is greatly sensitiv…
Static and dynamic aspects of transonicity in Bondi accretion
Arnab K. Ray, Jayanta K. Bhattacharjee
Transonicity in a spherically symmetric accreting system has been considered in both the stationary and the dynamic regimes. The stationary flow, set up as a dynamical system, has…
Evolution of transonicity in an accretion disc
Arnab K. Ray, Jayanta K. Bhattacharjee
For inviscid, rotational accretion flows driven by a general pseudo-Newtonian potential on to a Schwarzschild black hole, the only possible fixed points are saddle points and centr…
Axisymmetric black hole accretion in the Kerr metric as an autonomous dynamical system
Sanghamitra Goswami, Saba Nashreen Khan, Arnab K. Ray +1
In a stationary, general relativistic, axisymmetric, inviscid and rotational accretion flow, described within the Kerr geometric framework, transonicity has been examined by settin…