173 citations · 880 across the 33 of their papers we have counts for
3 papers · 1 filter
Quasinormal modes and greybody factors of the novel four dimensional Gauss-Bonnet black holes in asymptotically de Sitter space time: Scalar, Electromagnetic and Dirac perturbations
Saraswati Devi, Rittick Roy, Sayan Chakrabarti
We find the low lying quasinormal mode frequencies of the recently proposed novel four dimensional Gauss-Bonnet de Sitter black holes for scalar, electromagnetic and Dirac field pe…
Study of relativistic accretion flow in Kerr-Taub-NUT spacetime
Indu K. Dihingia, Debaprasad Maity, Sayan Chakrabarti +1
We study the properties of the relativistic, steady, axisymmetric, low angular momentum, inviscid, advective, geometrically thin accretion flow in a Kerr-Taub-NUT (KTN) spacetime w…
A study on black hole shadows in asymptotically de Sitter spacetimes
Rittick Roy, Sayan Chakrabarti
Previous works on black hole shadows have been primarily focused on studying shadows in asymptotically flat and anti-de Sitter space times. In the present work, we find general exp…