Early Cosmological Models with Bulk Viscosity in Brans-Dicke Theory

被引：0

作者：

Shri Ram

C.P. Singh

机构：

[1] Hindu University,Department of Applied Mathematics, Institute of Technology, Banaras

来源：

Astrophysics and Space Science | 1997年 / 254卷

关键词：

Cosmological Model; Bulk Viscosity; Particle Creation; Zero Curvature; Universe Expand;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The effect of time dependent bulk viscosity on the evolution of Friedmann models with zero curvature in Brans-Dicke theory is studied. The solutions of the field equations with ‘gamma-law’ equation of state p = (γ-1) ρ, where γ varies continuously as the Universe expands, are obtained by using the power-law relation φ = bRn, which lead to models with constant deceleration parameter. We obtain solutions for the inflationary period and radiation dominated era of the universe. The physical properties of cosmological solutions are also discussed.

引用

页码：143 / 150

页数：7

共 50 条

[1] Early cosmological models with bulk viscosity in Brans-Dicke theory
Ram, S
Singh, CP
[J]. ASTROPHYSICS AND SPACE SCIENCE, 1997, 254 (01) : 143 - 150
[2] Reconsidering bulk viscosity in Brans-Dicke theory
Devi, Kanchan
Kumar, Pankaj
[J]. MODERN PHYSICS LETTERS A, 2024, 39 (21N22)
[3] NONSINGULAR COSMOLOGICAL MODELS IN BRANS-DICKE THEORY
JOHRI, VB
CHANDRA, R
SRIVASTAVA, RC
[J]. GENERAL RELATIVITY AND GRAVITATION, 1982, 14 (08) : 771 - 780
[4] Bulk viscosity and particle creation in Brans-Dicke theory
Singh, GP
Beesham, A
[J]. AUSTRALIAN JOURNAL OF PHYSICS, 1999, 52 (06): : 1039 - 1049
[5] Discrete cosmological models in the Brans-Dicke theory of gravity
Durk, Jessie
Clifton, Timothy
[J]. CLASSICAL AND QUANTUM GRAVITY, 2019, 36 (18)
[6] Cosmological Constraints on Brans-Dicke Theory
Avilez, A.
Skordis, C.
[J]. PHYSICAL REVIEW LETTERS, 2014, 113 (01)
[7] Bianchi Types II, VIII and IX String Cosmological Models with Bulk Viscosity in Brans-Dicke Theory of Gravitation
Rao, V. U. M.
Sireesha, K. V. S.
[J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2012, 51 (10) : 3013 - 3020
[8] Bianchi Types II, VIII and IX String Cosmological Models with Bulk Viscosity in Brans-Dicke Theory of Gravitation
V. U. M. Rao
K. V. S. Sireesha
[J]. International Journal of Theoretical Physics, 2012, 51 : 3013 - 3020
[9] EXACT-SOLUTIONS IN BRANS-DICKE THEORY WITH BULK VISCOSITY
PIMENTEL, LO
[J]. INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 1994, 33 (06) : 1335 - 1340
[10] Five dimensional FRW bulk viscous cosmological models in Brans-Dicke theory of gravitation
Ramprasad, T.
Naidu, R. L.
Ramana, K. V.
[J]. ASTROPHYSICS AND SPACE SCIENCE, 2015, 357 (02)

← 1 2 3 4 5 →