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Modified Chaplygin gas with bulk viscous cosmology in FRW (2+1)-dimensional spacetime
Journal of Astrophysics and Astronomy ( IF 1.1 ) Pub Date : 2019-10-01 , DOI: 10.1007/s12036-019-9606-1
G. S. Khadekar , Praveen Kumar , Safiqul Islam

In this paper we study the bulk viscous cosmology by considering modified Chaplygin gas in the framework of $$(2+1)$$ -dimensional spacetime. For this we consider various form of bulk viscosity coefficient $$\zeta $$ and then obtain the physical parameters energy density $$\rho $$ , Hubble and deceleration parameters, H and q, respectively. Finally we discuss the stability of the model by using the speed of sound.

中文翻译:

在FRW(2+1)维时空中具有体积粘性宇宙学的修正Chaplygin气体

在本文中,我们通过在 $$(2+1)$$ 维时空框架中考虑修正的 Chaplygin 气体来研究体积粘性宇宙学。为此,我们考虑各种形式的体积粘度系数 $$\zeta $$,然后分别获得物理参数能量密度 $$\rho $$、哈勃和减速参数 H 和 q。最后我们用声速来讨论模型的稳定性。
更新日期:2019-10-01
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