Open AccessA Magnetized Dark Energy Type R/W Model with Polytropic Equation of State in Brans-Dicke Theory
Author(s) -
Mukunda Dewri
Publication year - 2020
Publication title -
journal of scientific research
Language(s) - English
Resource type - Journals
eISSN - 2070-0245
pISSN - 2070-0237
DOI - 10.3329/jsr.v12i3.43313
Subject(s) - polytropic process , physics , dark energy , equation of state , isotropy , volume viscosity , scalar–tensor theory , dark fluid , classical mechanics , deceleration parameter , gravitation , brans–dicke theory , mathematical physics , tensor (intrinsic definition) , viscosity , cosmology , thermodynamics , quantum mechanics , geometry , mathematics
In this paper, we study the spatially homogeneous Robertson-Walker cosmological models with magnetized isotropic dark energy like fluid in the scalar-tensor theory of gravitation proposed by Brans-Dicke. Variable cosmological constant ᴧ and Polytropic equation of state have been used to find exact solutions of the models with volumetric expansion and power-law relation. The Physical and dynamical behaviors of the models have been discussed using some physical quantities like energy density, pressure, and coefficient of bulk viscosity.