3 papers
astro-ph.CO2019
Probing the era of reheating for reconstructed inflationary potential in the RS II braneworld
Sukannya Bhattacharya, Kumar Das, Mayukh R. Gangopadhyay
We analyse the epoch of reheating after an inflationary phase in the Randal Sundrum(RS) Type- braneworld, where we did not consider any particular model of inflation, but r…
gr-qc2019
Even parity potential for spacetimes with Gaussian matter source and its associated QNM spectra
Souvik Pramanik, Kumar Das
We have obtained the general form of even mode potential function for the gravitational perturbation of a static spherically symmetric spacetime. Considering the minimal-spread Gau…
hep-th2018
Quasinormal mode spectra for odd parity perturbations in spacetimes with smeared matter sources
Kumar Das, Souvik Pramanik, Subir Ghosh
We have found the Quasi Normal Mode (QNM) frequencies of a class of static spherically symmetric spacetimes having a {\it {smeared}} matter distribution, parameterized by - an…