3 papers
astro-ph.HE2025
Dynamical properties of oscillating, viscous, transonic accretion disks around black holes
Sanjit Debnath, Indranil Chattopadhyay, Raj Kishor Joshi +3
We investigate the time evolution of sub-Keplerian transonic accretion flow onto a non-rotating black hole using axisymmetric viscous hydrodynamic simulations. We simulate the accr…
astro-ph.HE2024
On Disk Formation around Isolated Black Holes via Stream Accretion
Priyesh Kumar Tripathi, Indranil Chattopadhyay, Raj Kishor Joshi
We investigate accretion onto an isolated black hole from uniform winds. If the winds are directed towards the black hole, then the accretion process can be well described by the c…
astro-ph.HE2024
Radiative acceleration of relativistic jets from accretion discs around black holes
Indranil Chattopadhyay, Raj Kishor Joshi, Sanjit Debnath +2
Matter falling onto black holes, {also called} accretion discs, emit intense high-energy radiation. Accretion discs during {hard to hard intermediate} spectral states also emit bip…