A flat FLRW model with dynamical A as function of matter and geometry

Pradhan, Anirudh and Avik, De and Loo, Tee How and Maurya, Dinesh Chandra (2021) A flat FLRW model with dynamical A as function of matter and geometry. New Astronomy, 89. ISSN 13841076, DOI https://doi.org/10.1016/j.newast.2021.101637.

Full text not available from this repository.


We revisit the evolution of the scale factor in a flat FLRW spacetime with a new generalized decay rule for the dynamic Lambda-term under modified theories of gravity. It analyzes certain cosmological parameters and examines their behaviours in this generalized setting which includes several decay laws in the literature. We have also obtained observational constraints on various model parameters and estimated the present values of cosmological parameters {Omega(m0), Omega(Lambda 0), q(0), t(0), omega(0)} and have discussed with various observational results. Finite time past and future singularities in this model are also discussed.

Item Type: Article
Funders: Inter-University Centre for Astronomy & Astrophysics (IUCAA) , India [FRGS/1/2019/STG06/UM/02/6]
Uncontrolled Keywords: FLRW universe; Modified gravity; Dynamical cosmological constant; Observational parameters
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science > Institute of Mathematical Sciences
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 15 Apr 2022 07:31
Last Modified: 15 Apr 2022 07:31
URI: http://eprints.um.edu.my/id/eprint/26749

Actions (login required)

View Item View Item