18 citations · 67 across the 9 of their papers we have counts for
9 papers
Anisotropies and modified gravity theories in stellar and substellar objects
Shaswata Chowdhury
In several classes of modified gravity theories, extra degrees of freedom are not completely screened in the interiors of stellar and substellar objects. In such theories, the hydr…
Tidal disruption of white dwarfs in a modified gravity theory with SPH
Debojyoti Garain, Pritam Banerjee, Shaswata Chowdhury +1
Low energy imprints of modifications to general relativity are often found in pressure balance equations inside stars. These modifications are then amenable to tests via astrophysi…
Internal Gravity Waves in Massive Stars II: Frequency Analysis Across Stellar Mass
R. P. Ratnasingam, T. M. Rogers, S. Chowdhury +4
Stars with masses above 1.6 solar masses generally possess convective cores and radiative envelopes, which allows the propagation of outward-travelling internal gravity waves. We h…
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…
Deviation in stellar trajectory induced by asymmetry in partial tidal disruption
Pritam Banerjee, Debojyoti Garain, Shaswata Chowdhury +3
We study partial tidal disruption and present a quantitative analysis of the orbital dynamics of the remnant self-bound core. We perform smoothed particle hydrodynamical simulation…
The Schönberg-Chandrasekhar limit in presence of small anisotropy and modified gravity
Shaswata Chowdhury, Tapobrata Sarkar
The Schönberg-Chandrasekhar limit in post main sequence evolution for stars of masses in the range gives the maximum pressure that the stellar c…
Stable Hydrogen burning limits in rapidly rotating very low mass objects
Shaswata Chowdhury, Pritam Banerjee, Debojyoti Garain +1
We present novel effects of uniform rapid stellar rotation on the minimum mass of stable hydrogen burning in very low mass stars, using an analytic model, and relaxing the assumpti…
Modified gravity in the interior of population II stars
Shaswata Chowdhury, Tapobrata Sarkar
We study the effects of a beyond-Horndeski theory of modified gravity in the interior of a population II star. We consider a simple phenomenological model of a star…
Small Anisotropy in Stellar Objects in Modified Theories of Gravity
Shaswata Chowdhury, Tapobrata Sarkar
Interior structures of stellar objects might have small pressure anisotropy due to several reasons, including rotation and the presence of magnetic fields. Here, retaining the appr…