268 citations · 436 across the 8 of their papers we have counts for
9 papers
Anisotropic compact star with a linear pressure-density relationship
Shyam Das, Bikram Keshari Parida, Koushik Chakraborty +1
We present a model of compact astrophysical object under General Theory of Relativity using the anisotropic extension of Tolman IV solution. The anisotropy function, derived from t…
Quark matter supported wormhole in third order Lovelock gravity
Koushik Chakraborty, Abdul Aziz, Farook Rahaman +1
It is generally believed that wormholes are supported by exotic matter violating Null Energy Condition (NEC). However, various studies of wormhole geometries under Lovelock theorie…
A study on the effect of anisotropy under Finch-Skea geometry
Shyam Das, Koushik Chakraborty, Lipi Baskey +1
The popularity of the Finch-Skea ansatz to describe relativistic stellar model have encouraged us to study the analytic solutions of the Einstein field equation. We have presented…
Conformally symmetric relativistic star
Farook Rahaman, Sunil D. Maharaj, Iftikar Hossain Sardar +1
We investigate whether compact stars having Tolman-like interior geometry admit conformal symmetry. Taking anisotropic pressure along the two principal directions within the compac…
Possible features of galactic halo with electric field and observational constraints
Koushik Chakraborty, Farook Rahaman, Saibal Ray +2
Observed rotational curves of neutral hydrogen clouds strongly support the fact that galactic halo contains huge amount of nonluminous matter, the so called gravitational dark matt…
A new relativistic model of hybrid star with interactive quark matter and dense baryonic matter
Koushik Chakraborty, Farook Rahaman, Arkopriya Mallick
We propose a relativistic model of hybrid star admitting conformal symmetry considering quark matter and baryonic matter as two different fluids. We define interaction equations be…
A new deterministic model of strange stars
Farook Rahaman, Koushik Chakraborty, P. K. F. Kuhfittig +2
The observed evidence for the existence of strange stars and the concomitant observed masses and radii are used to derive an interpolation formula for the mass as a function of the…
Galactic rotation curves inspired by a noncommutative-geometry background
F. Rahaman, Peter K. F. Kuhfittig, K. Chakraborty +2
This paper discusses the observed at rotation curves of galaxies in the context of noncommutative geometry. The energy density of such a geometry is diffused throughout a region du…
Charged anisotropic matter with linear or nonlinear equation of state
Victor Varela, Farook Rahaman, Saibal Ray +2
Ivanov pointed out substantial analytical difficulties associated with self-gravitating, static, isotropic fluid spheres when pressure explicitly depends on matter density. Simplif…