English

An Axially Symmetric Transitioning models with Observational Constraints

General Relativity and Quantum Cosmology 2022-11-30 v1

Abstract

In this study, we have demonstrated the expansion history of an axially symmetric Bianchi type-I model of the universe. Our model as of now presents an accelerating universe, which had been in the decelerating phase in the past. Roles of the two crucial Hubble~H(z)H(z) and deceleration~q(z)q(z) parameters are examined. The energy parameters of the universe are estimated with the help of the latest observational Hubble data (46-data points) and Pantheon data (the latest compilation of SNIa with 40 binned in the redshift range 0.014z1.62)0.014 \leq z \leq 1.62). We also discuss the stability analysis of the model by state finder diagnosis. The analysis reveals that in late time, the model is a quintessence type and points towards the Λ\LambdaCDM model. Our developed model agrees with observational findings in a proper way. We have discussed some of the physical aspects of the model.

Keywords

Cite

@article{arxiv.2204.04451,
  title  = {An Axially Symmetric Transitioning models with Observational Constraints},
  author = {Vinod Kumar Bhardwaj and Archana Dixit and Rita Rani and G. K. Goswami and Anirudh Pradhan},
  journal= {arXiv preprint arXiv:2204.04451},
  year   = {2022}
}

Comments

19 pages, 10 figures

R2 v1 2026-06-24T10:43:12.125Z