39 citations · 413 across the 33 of their papers we have counts for
4 papers · 1 filter
Dissipation and acoustic tunnelling about the sonic horizon of Bondi accretion
Arnab K. Ray
Viscous dissipation, as a small perturbative effect about the Bondi flow, shrinks its sonic sphere. An Eulerian perturbation on the steady flow gives a wave equation and the corres…
Nonlinear variations in axisymmetric accretion
Soumyajit Bose, Anindya Sengupta, Arnab K. Ray
We subject the stationary solutions of inviscid and axially symmetric rotational accretion to a time-dependent radial perturbation, which includes nonlinearity to any arbitrary ord…
The role of flow geometry in influencing the stability criteria for low angular momentum axisymmetric black hole accretion
S. Nag, S. Acharya, A. K. Ray +1
Using mathematical formalism borrowed from dynamical systems theory, a complete analytical investigation of the critical behaviour of the stationary flow configuration for the low…
Fractal features in accretion discs
Nirupam Roy, Arnab K. Ray
Fractal concepts have been introduced in the accretion disc as a new feature. Due to the fractal nature of the flow, its continuity condition undergoes modifications. The conserved…