scholarly journals EVALUATION OF BIANCHI TYPE VI0 COSMOLOGICAL MODELS WITH DARK ENERGY IN BIMETRIC THEORY OF GRAVITATION

2015 ◽  
Author(s):  
Vijay Lepse Vijay Lepse ◽  
Keyword(s):  
Dark Energy ◽  
Bianchi Type ◽  
Cosmological Models ◽  
Bimetric Theory ◽  
Theory Of Gravitation ◽  
Bianchi Type Vi0

Bianchi type-VI0 cosmological models with anisotropic dark energy

2010 ◽  
Vol 332 (2) ◽  
pp. 497-502 ◽  
Author(s):  
K. S. Adhav ◽  
A. S. Bansod ◽  
S. L. Munde ◽  
R. G. Nakwal
Keyword(s):  
Dark Energy ◽  
Bianchi Type ◽  
Cosmological Models ◽  
Anisotropic Dark Energy ◽  
Bianchi Type Vi0

Bianchi type VI0 generalized ghost pilgrim dark energy model in Brans–Dicke theory of gravitation

2016 ◽  
Vol 94 (10) ◽  
pp. 1040-1044 ◽  
Author(s):  
V.U.M. Rao ◽  
U.Y. Divya Prasanthi
Keyword(s):  
Dark Energy ◽  
Bianchi Type ◽  
Field Equations ◽  
Pilgrim Dark Energy ◽  
Geometrical Properties ◽  
Scalar Expansion ◽  
Theory Of Gravitation ◽  
Shear Scalar ◽  
Bianchi Type Vi0 ◽  
Average Scale Factor

In this paper, we solve Brans–Dicke (BD) theory (Phys. Rev. D, 24, 925) field equations for anisotropic Bianchi type VI0 space–time and discuss evolution of the expanding Universe. Here, we consider pressureless fluid and isotropic generalized ghost pilgrim dark energy as the source of matter and dark energy, respectively. To get the determinate solution of the field equations we have used (i) scalar expansion proportional to the shear scalar and (ii) scalar field (in BD theory) proportional to average scale factor of the model. Some physical and geometrical properties of the model are also discussed.

LRS Bianchi type I magnetized cosmological model with perfect fluid and with quintessence, Chaplygin gas dark energy in bimetric theory of gravitation

2016 ◽  
Vol 26 (07) ◽  
pp. 1750061 ◽  
Author(s):  
M. S. Borkar ◽  
P. V. Gayakwad
Keyword(s):  
Magnetic Field ◽  
Dark Energy ◽  
Perfect Fluid ◽  
Bianchi Type ◽  
Chaplygin Gas ◽  
Bimetric Theory ◽  
Type I ◽  
Bianchi Type I ◽  
Theory Of Gravitation ◽  
Quintessence Model

We studied the LRS Bianchi type I cosmological models with perfect fluid, quintessence and standard Chaplygin gas dark energy in the presence as well as in the absence of magnetic field [Formula: see text], in bimetric theory of gravitation. It is realized that the magnetic field controlled the whole behavior of the models. In the absence of magnetic field, these models exists and the model never exists in the presence of magnetic field. The geometry of quintessence model for [Formula: see text] and standard Chaplygin gas model coincide and their physical behavior are same in the absence of magnetic field. Some geometrical and physical properties of each of the model are explored. The model have also been studied in regard with the singularities and it is pointed out that the model is singular in the presence of magnetic field and nonsingular in the absence of magnetic field.

Bianchi type-I string cosmological models in bimetric theory of gravitation

2008 ◽  
Vol 317 (1-2) ◽  
pp. 79-82 ◽  
Author(s):  
V. U. M. Rao ◽  
T. Vinutha ◽  
K. V. S. Sireesha
Keyword(s):  
Bianchi Type ◽  
Cosmological Models ◽  
Bimetric Theory ◽  
Type I ◽  
Bianchi Type I ◽  
Theory Of Gravitation
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