Magnetized Bianchi Type $V{I}_0$ Barotropic Massive String Universe with Decaying Vacuum Energy Density $\Lambda$

Abstract

Bianchi type $V{I}_0$ massive string cosmological models using the technique given by Letelier (1983) with magnetic field are investigated. To get the deterministic models, we assume that the expansion ($\theta$) in the model is proportional to the shear ($\sigma$) and also the fluid obeys the barotropic equation of state. It was found that vacuum energy density $\Lambda \propto \frac{1}{t^2}$ which matches with natural units. The behaviour of the models from physical and geometrical aspects in presence and absence of magnetic field is also discussed.

14 pages, no figures

References in corpus (10)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Detection of the Baryon Acoustic Peak in the Large-Scale Correlation Function of SDSS Luminous Red Galaxies
• The Supernova Legacy Survey: Measurement of Omega_M, Omega_Lambda and w from the First Year Data Set
• New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy
• On cosmic acceleration without dark energy
• Dynamical dark energy: Current constraints and forecasts
• Bulk Viscous Cosmology
• Bianchi Type III String Cosmological Models with Time Dependent Bulk Viscosity
• Some Bianchi Type I Viscous Fluid Cosmological Models with a Variable Cosmological Constant
• Generation of Bianchi type V cosmological models with varying $\Lambda$-term

Cited by in corpus (6)

• L.R.S. Bianchi type II Stiff Fluid cosmological model with Decaying Vacuum Energy Density $\Lambda$ in general relativity
• Anisotropic bulk viscous string cosmological models of the Universe under a time-dependent deceleration parameter
• Bianchi Type V Viscous Fluid Cosmological Models in Presence of Decaying Vacuum Energy
• The Bulk Viscous String Cosmology in An Anisotropic Universe With Late Time Acceleration
• Domain Wall Bianchi Type $V{I}_0$ Universe in $f(R,T)$ Gravity
• The Dynamics of a Two-Fluid Bianchi Type I Universe