Fluid accretion upon higher-dimensional wormhole and black hole for parameterized deceleration parameter

Abstract

In this work, we study some parameterizations of the deceleration parameter and investigate the accretion of the fluid in these parameterized models upon the higher-dimensional black hole (BH) and wormholes. For the undergoing analysis, [Formula: see text]-dimensional wormhole (proposed by Morris and Thorne) and Schwarzschild BH were chosen in the backdrop of higher-dimensional Friedmann–Robertson–Walker (FRW) space-time. For these parameterized models, we analyze the change of masses of BH and wormhole in different dimensions.

Constraints on the Parameterized Deceleration Parameter in FRW Universe

“…So the persuasion of an ideal divergence-free parametrization of DP is still relevant. The well-known parametrized equation of state parameter models has been introduced by several authors, and the corresponding analogous of these models for parametrized deceleration parameters have been introduced in [26,27]. Here, we have adopted the analogous of some well-known parametrized models for the deceleration parameter, which contains two unknown parameters and calculated the corresponding Hubble parameter in terms of redshift z.…”

“…The famous Chevallier-Polarski-Linder (CPL) model for parametrized equation of state parameter has been studied in [29,30]. The analogous CPL type parametrization of deceleration parameter has been introduced in [26,27] and is given by…”

“…In the ref. [26,27], the authors have introduced the analogous parametrized deceleration parameter instead of parametrized dark energy equation of state for the well-established models. Here we have considered the analogous parametrized deceleration parameter for the well-established models and constrains the model parameters by Markov Chain Monte Carlo (MCMC) data analysis.…”

Observational Constraining Study of New Deceleration Parameters in FRW Universe

“…Many authors have extensively introduced the well-known parametrized equation of state parameter models and the corresponding analogous of these models for parametrized DP. [31,32] Here, we have adopted the analogs of some well-known parametrized models for DP that contains two unknown parameters and calculated the corresponding HP in terms of redshift z.…”

“…An analogous parameterized DP has also been introduced for the well-established models in place of parameterized DE equation of state. [31,32] The present era of modern cosmology promotes the study of kinematical quantities, vastly known as "Cosmography" or "Cosmo-kinetics". This idea is observationally driven and completely independent of any prior assumption of the gravity theory or the chosen cosmological model.…”