Bianchi type-V transitioning model in Brans-Dicke theory with observational constraints

被引：9

作者：

Bhardwaj, Vinod Kumar ^{[1
]}

Dixit, Archana ^{[1
]}

Pradhan, Anirudh ^{[2
]}

机构：

[1] GLA Univ, Dept Math, Mathura 281406, Uttar Pradesh, India

[2] GLA Univ, Ctr Cosmol Astrophys & Space Sci CCASS, Mathura 281406, Uttar Pradesh, India

来源：

INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS | 2023年 / 20卷 / 02期

关键词：

LRS Bianchi-V; Brans-Dicke theory; Lambda CDM model; statefinders; LUMINOUS RED GALAXIES; SCALAR-TENSOR THEORY; DARK-ENERGY; COSMOLOGICAL MODEL; INFLATIONARY UNIVERSE; PERFECT FLUID; HEAT-FLOW; F R; CONSTANT; DECELERATION;

D O I：

10.1142/S0219887823500226

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we have examined the viability of the Bianchi type-V universe in Brans-Dicke (BD) theory of gravitation. We have discussed the interacting and non-interacting scenarios between dark matter (DM) and dark energy (DE) of the derived universe within the framework of BD theory. CCA technique has been applied to constrain the model parameters using 46 values of observational Hubble data (OHD), Pantheon data (the latest compilation of SNIa with 40 binned in the redshift range 0.014 <= z <= 1.62) and their combined datasets. a We establish an exact solution of the field equations to derive the dynamics of the derived universe and the obtained results are found to agree with the observations. We also noted a distinctive change in the sign of the deceleration parameter from positive to negative, as well as the presence of a transition red-shift exists. Using various observational data points, the evolution trajectories for (r - s) diagnostic planes are shown to understand the geometrical behavior of the Bianchi-V model. Some physical properties of the universe are also discussed. It is also worth noting that the conclusions of the cosmological parameter are consistent with modern observational data.

引用

页数：23

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