350 citations · 449 across the 5 of their papers we have counts for
7 papers
Distinguishing gravitational and emission physics in black-hole imaging: spherical symmetry
Prashant Kocherlakota, Luciano Rezzolla
Imaging a supermassive black hole and extracting physical information requires good knowledge of both the gravitational and the astrophysical conditions near the black hole. When t…
Constraints on black-hole charges with the 2017 EHT observations of M87*
Prashant Kocherlakota, Luciano Rezzolla, Heino Falcke +234
Our understanding of strong gravity near supermassive compact objects has recently improved thanks to the measurements made by the Event Horizon Telescope (EHT). We use here the M8…
Accurate mapping of spherically symmetric black holes in a parameterised framework
Prashant Kocherlakota, Luciano Rezzolla
The Rezzolla-Zhidenko (RZ) framework provides an efficient approach to characterize spherically symmetric black-hole spacetimes in arbitrary metric theories of gravity using a smal…
Mode stability of a near-extremal Kerr superspinar
Rittick Roy, Prashant Kocherlakota, Pankaj S. Joshi
We study here the quasi-normal mode stability of a near-extremal Kerr superspinar, an exotic spinning compact object that exceeds the Kerr bound, under gravitational perturbations.…
A General Relativistic Approach to Small-Scale Structure Formation
Dipanjan Dey, Prashant Kocherlakota, Pankaj S. Joshi
We treat here general relativistically the issue of galaxy formation, which is a major problem in cosmology. While the current models use a top-hat collapse model, coupled with New…
An Approach to Stability Analyses in General Relativity via Symplectic Geometry
Prashant Kocherlakota, Pankaj S. Joshi
We begin with a review of the statements of non-linear, linear and mode stability of autonomous dynamical systems in classical mechanics, using symplectic geometry. We then discuss…