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Charged anisotropic matter with linear or nonlinear equation of state

- V. Varela, F. Rahaman, S. Ray, K. Chakraborty, M. Kalam
- Physics
- 13 April 2010

Ivanov pointed out substantial analytical difficulties associated with self-gravitating, static, isotropic fluid spheres when pressure explicitly depends on matter density. Simplifications achieved… Expand

A new deterministic model of strange stars

- F. Rahaman, K. Chakraborty, P. Kuhfittig, G. Shit, Mosiur Rahman
- Physics
- 13 June 2014

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 radial coordinate.… Expand

Relativistic model for anisotropic strange stars

- D. Deb, S. R. Chowdhury, S. Ray, F. Rahaman, B. K. Guha
- Physics
- 30 May 2016

DARK ENERGY MODELS WITH VARIABLE EQUATION OF STATE PARAMETER

- U. Mukhopadhyay, S. Ray, F. Rahaman
- Physics
- 29 November 2007

Two phenomenological variable Λ models, viz.Λ ~ (ȧ/a)2 and Λ ~ ρ, have been studied under the assumption that the equation of state parameter ω is a function of time. The selected Λ models are found… Expand

Search of wormholes in different dimensional non-commutative inspired space-times with Lorentzian distribution

- P. Bhar, F. Rahaman
- Physics
- 29 August 2014

In this paper we ask whether the wormhole solutions exist in different dimensional noncommutativity-inspired spacetimes. It is well known that the noncommutativity of the space is an outcome of… Expand

BTZ black holes inspired by noncommutative geometry

- F. Rahaman, P. Kuhfittig, B. Bhui, M. Rahaman, S. Ray, U. Mondal
- Physics
- 17 January 2013

In this paper a Banados, Teitelboim and Zanelli (BTZ) black hole is constructed from an exact solution of the Einstein field equations in a (2+1)-dimensional anti-de Sitter spacetime in the context… Expand

Singularity-free solutions for anisotropic charged fluids with Chaplygin equation of state

- F. Rahaman, S. Ray, Abdul Kayum Jafry, Kausik Chakraborty
- Physics
- 12 July 2010

We extend the Krori-Barua analysis of the static, spherically symmetric, Einstein-Maxwell field equations and consider charged fluid sources with anisotropic stresses. The inclusion of a new variable… Expand

Charged gravastars admitting conformal motion

- A. A. Usmani, F. Rahaman,
+4 authors Z. Hasan - Physics
- 27 December 2010

Nonommutative wormholes in f(R) gravity

- M. Jamil, F. Rahaman, R. Myrzakulov, P. Kuhfittig, N. Ahmed, U. Mondal
- Mathematics
- 23 March 2013

This paper discusses several new exact solutions for static wormholes in f(R) gravity with a noncommutative-geometry background. In the first part of the paper, we assume the power-law form f(R) =… Expand

Searching for higher-dimensional wormholes with noncommutative geometry

- F. Rahaman, P. Kuhfittig, S. Ray, S. Islam
- Computer Science
- 12 September 2012

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