109 citations · 281 across the 11 of their papers we have counts for
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Equilibrium of slowly rotating polytropes in modified theories of gravity
Shaswata Chowdhury, Pritam Banerjee, Aneta Wojnar
A general formalism to find the density profile of a slowly rotating stellar object in modified gravity is presented. We derive a generic Lane-Emden equation and its analytical sol…
Mass and spin of Kerr black holes in terms of observational quantities: The dragging effect on the redshift
Pritam Banerjee, Alfredo Herrera-Aguilar, Mehrab Momennia +1
In this work, we elaborate on the development of a general relativistic formalism that allows one to analytically express the mass and spin parameters of the Kerr black hole in ter…
Shadows and thin accretion disk images of the -metric
Rajibul Shaikh, Suvankar Paul, Pritam Banerjee +1
The -metric is a static, axially-symmetric singular solution of the vacuum Einstein's equations without an event horizon. This is a two-parameter family of solutions, generic va…
A stellar constraint on Eddington-inspired Born-Infeld gravity from cataclysmic variable binaries
Pritam Banerjee, Debojyoti Garain, Suvankar Paul +2
Eddington-inspired Born-Infeld gravity is an important modification of Einstein's general relativity, which can give rise to non-singular cosmologies at the classical level, and av…
Analytical approach to strong gravitational lensing from ultracompact objects
Rajibul Shaikh, Pritam Banerjee, Suvankar Paul +1
Strong gravitational lensing from black holes results in the formation of relativistic images, in particular, relativistic Einstein rings. For objects with event horizons, the radi…
Tidal effects away from the equatorial plane in Kerr backgrounds
Pritam Banerjee, Suvankar Paul, Rajibul Shaikh +1
We study tidal effects on self-gravitating Newtonian stars rotating around a Kerr black hole in stable circular orbits away from the equatorial plane. Such cases are exemplified by…
A novel gravitational lensing feature by wormholes
Rajibul Shaikh, Pritam Banerjee, Suvankar Paul +1
Horizonless compact objects with light rings (or photon spheres) are becoming increasingly popular in recent years for several reasons. In this paper, we show that a horizonless ob…
On Strong Gravitational Lensing in Rotating Galactic Space-times
Pritam Banerjee, Suvankar Paul, Tapobrata Sarkar
We study strong gravitational lensing in rotating space-times which can be thought of as realistic galactic models in General Relativity. To this end, using the Newman-Janis algori…
Massless fermions in null Fermi coordinates and an application to analog gravity in -A
Pritam Banerjee, Suvankar Paul, Tapobrata Sarkar
Bogoliubov quasiparticles moving in the background of superfluid -A see an apparently curved space-time metric when the background superfluid vacuum is in motion. We s…