Dark energy model with variable $q$ and $\omega$ in LRS Bianchi-II space-time

Abstract

The present study deals with spatial homogeneous and anisotropic locally rotationally symmetric (LRS) Bianchi-II dark energy model in general relativity. The Einstein's field equations have been solved exactly by taking into account the proportionality relation between one of the components of shear scalar $({\sigma }_1^1)$ and expansion scalar $(\vartheta )$, which, for some suitable choices of problem parameters, yields time dependent equation of state (EoS) and deceleration parameter (DP), representing a model which generates a transition of universe from early decelerating phase to present accelerating phase. The physical and geometrical behavior of universe have been discussed in detail.

12 pages, 3 figures (to appear in Astrophys. Space Sc.)

References in corpus (12)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Temperature Analysis
• Cosmic Microwave Background Quadrupole and Ellipsoidal Universe
• Bianchi type III models with anisotropic dark energy
• Dark energy models with variable equation of state parameter
• Bianchi Type III Anisotropic Dark Energy Models with Constant Deceleration Parameter
• Some Anisotropic Dark Energy Models in Bianchi Type-V Space-time
• Some Bianchi Type-V Models of Accelerating Universe with Dark Energy
• Bianchi Type VII_h Models and the WMAP 3-year Data
• Fast and Efficient Template Fitting of Deterministic Anisotropic Cosmological Models Applied to WMAP Data
• Bianchi type-II cosmological model: some remarks

Cited by in corpus (7)

• Accelerating dark energy models with anisotropic fluid in Bianchi type-$V{I}_0$ space-time
• Constraining Anisotropic Cosmological Model in $f(\mathcal{R},{\mathcal{L}}_m)$ Gravity
• Transitioning scenario of Bianchi-I universe within $f\left(R,T\right)$ formalism
• $\Lambda$CDM-type cosmological model and observational constraints
• Nonlinear Spinor Fields in Bianchi type-I spacetime reexamined
• $\Lambda$-CDM type Heckmann - Suchuking model and union 2.1 compilation
• $C$-field cosmological models: revisited