Two Fluid Scenario in Bianchi Type-I Universe

Abstract

In this paper, we study a Bianchi type -I model of universe filled with barotropic and dark energy(DE) type fluids. The present values of cosmological parameters such as Hubble constant $H_0$, barotropic, DE and anisotropy energy parameters $({\Omega }_m{)}_0$, $({\Omega }_{de}{)}_0$ and $({\Omega }_{\sigma }{)}_0$ and Equation of State(EoS) parameter for DE (${\omega }_{de}$) are statistically estimated in two ways by taking 38 point data set of Hubble parameter H(z) and 581 point data set of distance modulus of supernovae in the range $0\le z\le 1.414$. It is found that the results agree with the Planck result [P.A.R. Ade, et al., Astron. Astrophys. 594 A14 (2016)] and more latest result obtained by Amirhashchi and Amirhashchi [H. Amirhashchi and S. Amirhashchi, arXiv:1811.05400v4 (2019)]. Various physical properties such as age of the universe, deceleration parameter etc have also been investigated.

10 pages, 8 figures

References in corpus (12)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• Hubble parameter measurement constraints on the redshift of the deceleration-acceleration transition, dynamical dark energy, and space curvature
• Hemispherical power asymmetry in the three-year Wilkinson Microwave Anisotropy Probe sky maps
• Cosmic Microwave Background Quadrupole and Ellipsoidal Universe
• Ellipsoidal Universe Can Solve The CMB Quadrupole Problem
• Anisotropic Dark Energy: Dynamics of Background and Perturbations
• Constraints on a Bianchi type I spacetime extension of the standard $\Lambda$CDM model
• Dynamics of Bianchi I Universe with Magnetized Anisotropic Dark Energy
• A Model of Universe Anisotropization
• Fast and Efficient Template Fitting of Deterministic Anisotropic Cosmological Models Applied to WMAP Data
• L.R.S. Bianchi type II Stiff Fluid cosmological model with Decaying Vacuum Energy Density $\Lambda$ in general relativity
• Cosmological constant dominated transit universe from early deceleration to current acceleration phase in Bianchi-V space-time

Cited by in corpus (12)

• An Axially Symmetric Transitioning models with Observational Constraints
• Modeling of accelerating Universe with bulk viscous fluid in Bianchi V space-time
• Constraining Bianchi type V universe with recent H(z) and BAO observations in Brans-Dicke theory of gravitation
• Corrected holographic dark energy with power-law entropy and Hubble Horizon cut-off in FRW Universe
• The simplest parametrization of equation of state parameter in the scalar field Universe
• A new class of holographic dark energy models in LRS Bianchi Type-I
• Observation constraints on scalar field cosmological model in Anisotropic universe
• The Reconstruction of Constant Jerk Parameter with $f(R,T)$ Gravity in Bianchi-I spacetime
• Quintom fields from chiral anisotropic cosmology
• Role of a periodic varying deceleration parameter in Particle creation with higher dimensional FLRW Universe
• An exact solution of the observable universe in Bianchi V space-time
• Cosmological volume acceleration in dust epoch: using scaling solutions and variable cosmological term $\Lambda (t)$ within an anisotropic cosmological model