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Articles written in Pramana – Journal of Physics

• Magnetized cosmological models in bimetric theory of gravitation

Bianchi type-III magnetized cosmological model when the field of gravitation is governed by either a perfect fluid or cosmic string is investigated in Rosen’s [1] bimetric theory of gravitation. To complete determinate solution, the condition, viz., A=(BC)n, where n is a constant, between the metric potentials is used. We have assumed different equations of state for cosmic string [2] for the complete solution of the model. Some physical and geometrical properties of the exhibited model are discussed and studied.

• Hypersurface-homogeneous Universe filled with perfect fluid in $f (R, T)$ theory of gravity

The exact solutions of the field equations with respect to hypersurface-homogeneous Universe filled with perfect fluid in the framework of $f (R, T)$ theory of gravity (Harko et al, \emph{Phys. Rev.} D 84, 024020 (2011)) is derived. The physical behaviour of the cosmological model is studied.

• Magnetized anisotropic dark energy models with constant deceleration parameter

In this paper, we have studied the solutions of plane-symmetric Universe with variable $\omega$ in the presence and the absence of magnetic field of energy density $\rho B$. A special law of variation for Hubble’s parameterproposed by Bermann in {\it Nuovo Cimento} B 74, 182 (1983) has been utilized to solve the field equations. Some physical and kinematical properties of the models are also discussed.

• Dynamics of Bianchi type-VI$_0$ holographic dark energy models in general relativity and Lyra’s geometry

In this paper, we have studied the anisotropic and homogeneous Bianchi type-VI$_0$ Universe filled with dark matter and holographic dark energy components in the framework of general relativity and Lyra’s geometry. The Einstein’s field equations have been solved exactly by taking the expansion scalar ($\theta$) in the model is proportional to the shear scalar ($\sigma$). Some physical and kinematical properties of the models are also discussed.

• # Pramana – Journal of Physics

Volume 94, 2020
All articles
Continuous Article Publishing mode

• # Editorial Note on Continuous Article Publication

Posted on July 25, 2019