A five dimensional Kaluza-Klein bulk viscous string cosmological model in Brans-Dicke scalar-tensor theory of gravitation

被引：15
|
作者：
Naidu, R. L. [1 ]
Naidu, K. Dasu [1 ]
Babu, K. Shobhan [2 ]
Reddy, D. R. K. [3 ]
机构：
[1] GMR Inst Technol, Rajam, India
[2] JNTU Kakinada, Dept Math, Kakinada, India
[3] MVGR Coll Engn, Dept Sci & Humanities, Vizainagaram, Andhra Pradesh, India
来源：
ASTROPHYSICS AND SPACE SCIENCE | 2013年 / 347卷 / 01期
关键词：
Kaluza-Klein model; Bulk viscosity; Cosmic strings; Brans-Dicke theory; COSMIC STRINGS; COVARIANT THEORY; DOMAIN-WALLS; DARK ENERGY; UNIVERSE;
D O I：
10.1007/s10509-013-1498-y
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we have investigated a five dimensional Kaluza-Klein space-time in the frame work of Brans-Dicke (Phys. Rev. 124:925, 1961) scalar-tensor theory of gravitation when the source of energy momentum tensor is a bulk viscous fluid containing one dimensional cosmic strings. We have obtained a determinate solution of the field equations using the special law of variation for Hubble's parameter proposed by Bermann (Nuovo Cimento B 74:182, 1983) We have also used a barotropic equation of state for the pressure and density. Some physical properties of the model are also discussed.
引用
收藏
页码：197 / 201
页数：5
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