Bulk viscous cosmological models in f(R,T) theory of gravity

被引:31
作者
Mahanta, K. L. [1 ]
机构
[1] CV Raman Coll Engn, Dept Math, Bhubaneswar, Orissa, India
关键词
f(R; T); theory; Bulk viscous fluid; LRS Bianchi I space time; PERFECT FLUID; DARK ENERGY; I UNIVERSE; CHAPLYGIN-GAS; FRW COSMOLOGY; T) GRAVITY; VISCOSITY; CONSTANT; FIELD; SUPERNOVAE;
D O I
10.1007/s10509-014-2040-6
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have constructed Locally Rotationally Symmetric Bianchi type I (LRSBI) cosmological models in the f(R,T) theory of gravity when the source of gravitation is the bulk viscous fluid. The models are constructed for f(R,T)=R+2f(T) and f(R,T)=f (1)(R)+f (2)(T). We found that in the first case the model degenerates into effective stiff fluid model of the universe. In the second case we obtained degenerate effective stiff fluid model as well as general bulk viscous models of the universe. Some physical and kinematical properties of the models are also discussed.
引用
收藏
页码:683 / 689
页数:7
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