Accelerating universe with variable EoS parameter of dark energy in Brans-Dicke theory of gravitation

被引：3

作者：

Katore, S. D. ^{[1
]}

Kapse, D. V. ^{[2
]}

机构：

[1] Sant Gadge Baba Amravati Univ, Dept Math, Amravati 444602, India

[2] Prof Ram Meghe Inst Technol & Res, Dept Math, Badnera, Badnera 444701, Amravati, India

来源：

JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 2019年 / 40卷 / 03期

基金：

英国科研创新办公室;

关键词：

FRW space-time; dark energy; statefinder parameters; Brans-Dicke theory; PROBE WMAP OBSERVATIONS; HUBBLE-SPACE-TELESCOPE; SCALAR-TENSOR THEORY; GENERAL-RELATIVITY; IA SUPERNOVAE; FRW UNIVERSE; MODEL; DECELERATION; AGE; CONSTRAINTS;

D O I：

10.1007/s12036-019-9589-y

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have investigated the spatially homogeneous and isotropic Friedmann-Robertson-Walker (FRW) universe filled with barotropic fluid and dark energy in the framework of the Brans-Dicke theory of gravitation. Here we have discussed three models: (i) law of variation for Hubble's parameter, which leads to a constant value of deceleration parameter, (ii) hybrid expansion law model, and (iii) special form of deceleration parameter model. We have found that among all these derived models, the most suitable standard cosmological model according to the recent cosmological observations is the model with special form of deceleration parameter.

引用

页数：11

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