18 papers
Relativistic Accretion Flow in a Generic Class of Spherically Symmetric Static Spacetime
Pradeepkumar Yadav, Sayan Chakrabarti, Santabrata Das
We investigate the properties of low angular momentum, inviscid, advective accretion flows in a generic static and spherically symmetric spacetime that incorporates higher-order co…
Influence of winds on shocked magnetized viscous accretion flows around rotating black holes
Camelia Jana, Santabrata Das
We study global transonic solution for a relativistic, magnetized, viscous advective accretion flow around a rotating black hole, incorporating the effects of mass and angular mome…
Transonic accretion flow in the mini discs of a binary black hole system
Subhankar Patra, Bibhas Ranjan Majhi, Santabrata Das
We study the general relativistic transonic accretion flow around the primary black hole, which forms the circumprimary disc (CPD), within a binary black hole (BBH) system. The BBH…
Impact of general relativistic accretion on primordial black holes
Santabrata Das, Md Riajul Haque, Jitumani Kalita +2
We demonstrate that general relativistic corrections to the accretion of relativistic matter onto primordial black holes (PBHs) can significantly enhance their mass growth during t…
Neutrino-dominated relativistic shocked accretion flow around rotating black hole: implications for short gamma-ray bursts
Amit Kumar, Sayan Chakrabarti, Santabrata Das
We investigate the physical properties of the central engine powering gamma-ray bursts (GRBs), modelled as a stellar-mass black hole accreting via a neutrino-dominated accretion fl…
Dark matter halos and transonic accretion flow
Avijit Chowdhury, Gargi Sen, Sayan Chakrabarti +1
The interplay between supermassive black holes (SMBHs) and their surrounding environment is fundamental to understanding galactic evolution. This work investigates the influence of…