scholarly journals Imperfect Barotropic Magnetic Tilted Cosmological Model

2012 ◽  
pp. 365-368
Author(s):  
Anita Bagora ◽  
Rakeshwar Purohit
Keyword(s):  
Cosmological Model ◽  
Tilted Cosmological Model

Kaluza-Klein Tilted Cosmological Model in Lyra Geometry

2017 ◽  
Vol 42 (3) ◽  
pp. 1451-1457 ◽  
Author(s):  
Subrata Kumar Sahu ◽  
Samuel Ganiamo Ganebo ◽  
Gebretsadik Gidey Weldemariam
Keyword(s):  
Cosmological Model ◽  
Lyra Geometry ◽  
Tilted Cosmological Model ◽  
Kaluza Klein

Tilted cosmological model consisting two forms of dark energy

2018 ◽  
Vol 33 (36) ◽  
pp. 1850213 ◽  
Author(s):  
V. J. Dagwal ◽  
D. D. Pawar
Keyword(s):  
Dark Energy ◽  
Cosmological Model ◽  
Power Law ◽  
Gravitational Constant ◽  
Deterministic Model ◽  
Geometrical Parameters ◽  
Tilted Cosmological Model ◽  
The Universe ◽  
Tilted Models

We have presented the tilted cosmological model consisting of two forms of dark energy. The behavior of different stages of the Universe in tilted models is studied with the help of dark energy contained in our Universe to be part of quintessence which is a homogeneous minimally coupled scalar. To get the deterministic model, we have assumed a power law of gravitational constant G. We also investigated the behavior of some physical and geometrical parameters.

Mesonic tilted cosmological model with wet dark fluid in F(T) theory of gravity

2020 ◽  
Vol 98 (7) ◽  
pp. 636-642 ◽  
Author(s):  
V.J. Dagwal
Keyword(s):  
Heat Conduction ◽  
Cosmological Model ◽  
Tilt Angle ◽  
Cosmological Models ◽  
Wet Dark Fluid ◽  
Torsion Scalar ◽  
Dark Fluid ◽  
Tilted Cosmological Model ◽  
Teleparallel Theory ◽  
Theory Of Gravity

This study presents mesonic tilted cosmological models with wet dark fluid in the F(T) theory of gravity, which is an extension of the Teleparallel theory of gravity, where T is the torsion scalar. In this paper, a new idea is introduced about the F(T) theory of gravity with the help of tilt angle, heat conduction, and mesonic wet dark fluid. The cosmological evolution in F(T) models is investigated. The physical and geometrical aspects of the models are also discussed.

The microwave background and (m, Z) relations in a tilted cosmological model

1985 ◽  
Vol 112 (1) ◽  
pp. 193-202 ◽  
Author(s):  
D. R. Matravers ◽  
M. S. Madsen ◽  
D. L. Vogel
Keyword(s):  
Cosmological Model ◽  
Microwave Background ◽  
Tilted Cosmological Model

Tilted Bulk Disordered Distribution Cosmological Model

2012 ◽  
Vol 629 ◽  
pp. 635-640
Author(s):  
Anita Bagora ◽  
Rakeshwar Purohit
Keyword(s):  
Heat Conduction ◽  
Cosmological Model ◽  
Viscous Fluid ◽  
Bulk Viscosity ◽  
Linear Relation ◽  
Bianchi Type ◽  
Type I ◽  
Bulk Viscous Fluid ◽  
Tilted Cosmological Model ◽  
Bulk Viscous

Bianchi type I bulk viscous fluid tilted cosmological model filled with disordered radiation and heat conduction is investigated. We assume that (constant), where is the coefficient of bulk viscosity and  is the expansion in the model. Here, we assume a linear relation between shear and expansion i.e. =constant, which leads to A=BC, where A, B, C are metric potentials. The physical and geometrical aspects of the model in the presence and absence of bulk viscosity are also discussed.

Cosmological spacetimes

2018 ◽  
Author(s):  
Nathalie Deruelle ◽  
Jean-Philippe Uzan
Keyword(s):  
Cosmological Model ◽  
Large Scale ◽  
Cosmic Time ◽  
De Sitter ◽  
Matter Distribution ◽  
Observable Universe ◽  
Cosmological Principle ◽  
Riemannian Spacetime ◽  
The Universe ◽  
Copernican Principle

This chapter provides a few examples of representations of the universe on a large scale—a first step in constructing a cosmological model. It first discusses the Copernican principle, which is an approximation/hypothesis about the matter distribution in the observable universe. The chapter then turns to the cosmological principle—a hypothesis about the geometry of the Riemannian spacetime representing the universe, which is assumed to be foliated by 3-spaces labeled by a cosmic time t which are homogeneous and isotropic, that is, ‘maximally symmetric’. After a discussion on maximally symmetric space, this chapter considers spacetimes with homogenous and isotropic sections. Finally, this chapter discusses Milne and de Sitter spacetimes.

Sign in / Sign up

Export Citation Format

Share Document