84 citations · 571 across the 33 of their papers we have counts for
6 papers · 1 filter
The astrophysics of rotational energy extraction from a black hole
David Garofalo, Chandra B. Singh
Recent work has called into question whether nature can extract the rotational energy of a black hole via electromagnetic fields by appealing to an alleged ability to absorb curren…
The black hole-star formation connection over cosmic time
Chandra B. Singh, Nelitha Kulasiri, Max North +1
Observations at low redshift have begun to tease out the star formation rate in active galaxies (AGN), which marks the beginning of the black hole-star formation connection over co…
Emission lines from X-ray illuminated accretion disc in black hole binaries
Santanu Mondal, Tek P. Adhikari, Chandra B. Singh
X-ray flux from the inner hot region around central compact object in a binary system illuminates the upper surface of an accretion disc and it behaves like a corona. This region c…
Effects of resistivity on standing shocks in low angular momentum flows around black holes
Chandra B. Singh, Toru Okuda, Ramiz Aktar
We study two dimensional low angular momentum flow around the black hole using the resistive magnetohydrodynamic module of PLUTO code. Simulations have been performed for the flows…
Powerful Jets from Radiatively Efficient Disks, a Decades-Old Unresolved Problem in High Energy Astrophysics
Chandra B. Singh, David Garofalo, Benjamin Lang
The discovery of 3C 273 in 1963, and the emergence of the Kerr solution shortly thereafter, precipitated the current era in astrophysics focused on using black holes to explain act…
Radiative Shocks around Super-Eddington Accreting Black Holes
Toru Okuda, Chandra B. Singh
We examine radiative standing shocks in advective accretion flows around stellar-mass black holes by 2D radiation hydrodynamic simulations, focusing on the super-Eddington accretin…