Singularity free cosmological models in viscous symmetric teleparallel gravity

被引：6

作者：

Gohain, Mrinnoy M. ^{[1
]}

Bhuyan, Kalyan ^{[1
]}

机构：

[1] Dibrugarh Univ, Dept Phys, Dibrugarh 786004, Assam, India

来源：

PHYSICS OF THE DARK UNIVERSE | 2024年 / 43卷

关键词：

Emergent cosmology; Einstein static universe; Bulk viscosity; EINSTEIN STATIC UNIVERSE; LUMINOUS RED GALAXIES; EMERGENT UNIVERSE; CONSTRAINTS; INFLATION; SCENARIO; CURVES;

D O I：

10.1016/j.dark.2024.101424

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we have investigated the possibility of deriving exact non -singular cosmological solutions in a combined scenario of bulk viscous fluid and symmetric teleparallel gravity (f(Q) gravity). Interestingly, we have found that the general solutions obtained from our models are flexible enough for demonstrating the emergent Universe scenario, inflation and late -time dark-energy-like behaviour. We have found that these phases of the Universe depend crucially on the viscosity parameters zeta 0, zeta 1 considered in this work and also the parameter n associated with the f(Q) model. Hence, we performed an analysis concerning the model's relevance with the observed data to constrain the aforementioned parameters.

引用

页数：12

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