Cosmological dynamics of accelerating model in f(Q) gravity with latest observational data

被引:0
|
作者
Bhardwaj, Vinod Kumar [1 ]
Garg, Priyanka [1 ]
Prakash, Suraj [2 ]
机构
[1] GLA Univ, Dept Math, Mathura 281406, Uttar Pradesh, India
[2] GLA Univ, Dept Phys, Mathura 281406, Uttar Pradesh, India
关键词
Observational constraints; Jerk parameter; Energy conditions; f(Q) gravity; Parameterizations of q; BARYON ACOUSTIC-OSCILLATIONS; CENT DISTANCE; CONSTRAINTS; UNIVERSE; STATEFINDER; REDSHIFT; GALAXIES; I;
D O I
10.1007/s10509-024-04315-5
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In the current study, we have considered three different parameterizations of deceleration parameter to describe the cosmo-logical dynamics of the accelerating universe in f(Q)gravity. The power law symmetric teleparallel gravity with a specific form f(Q)=Q + nQ(m) is assumed for the modelling purpose. Here, m and n are constants and Q is the non-metricity term that describes the gravitational interaction in space time. We constructed the field equations depending on the power law f(Q)gravity and parameters are extracted using experimental observations. Latest observational datasets of BAO,H(z)and Pantheon are utilized to predict the best fit values of parameters and current value of Hubble constant. The Markov Chain Monte Carlo (MCMC) algorithm has been used to decide the best plausible values of parameters. We numerically represent the physical and geometrical features of the models and thoroughly explore their development. We analyzed our models using the jerk and Om diagnosis that depict the derived cosmic models are different from the ACDM model expressing late time accelerated expansion of cosmos with phantom type of the universe. We also discussed the viability of models by the analysis of energy conditions
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页数:13
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