A parametric reconstruction of the deceleration parameter

Abstract

The present work is based on a parametric reconstruction of the deceleration parameter $q(z)$ in a model for the spatially flat FRW universe filled with dark energy and non-relativistic matter. In cosmology, the parametric reconstruction technique deals with an attempt to build up a model by choosing some specific evolution scenario for a cosmological parameter and then estimate the values of the parameters with the help of different observational datasets. In this paper, we have proposed a logarithmic parametrization of $q(z)$ to probe the evolution history of the universe. Using the type Ia supernova (SNIa), baryon acoustic oscillation (BAO) and the cosmic microwave background (CMB) datasets, the constraints on the arbitrary model parameters $q_0$ and $q_1$ are obtained (within $1\sigma$ and $2\sigma$ confidence limits) by ${\chi }^2$-minimization technique. We have then reconstructed the deceleration parameter, the total EoS parameter ${\omega }_{tot}$, the jerk parameter and have compared the reconstructed results of $q(z)$ with other well-known parametrizations of $q(z)$. We have also shown that two model selection criteria (namely, Akaike information criterion and Bayesian Information Criterion) provide the clear indication that our reconstructed model is well consistent with other popular models.

v2:substantially revised, refs added, Accepted for publication in European Physical Journal C

References in corpus (9)

• Dynamics of dark energy
• Reconstructing Dark Energy
• A kinematical approach to dark energy studies
• Reconstruction of the deceleration parameter and the equation of state of dark energy
• Kinematic Constraints to the Transition Redshift from SNe Ia Union Data
• Nonparametric Reconstruction of the Dark Energy Equation of State
• Model Independent Reconstruction of the Expansion History of the Universe and the Properties of Dark Energy
• Three thermodynamically-based parametrizations of the deceleration parameter
• Reconstruction of Deceleration Parameters from Recent Cosmic Observations

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