A Brief Study of Dark Energy Accretion onto Schwarzschild Black Hole : Biswas-Roy-Biswas Type Redshift Parameterization is Chosen

Abstract

In this letter, we have considered accretion of a particular type of Dark Energy model onto a Schwarzschild type black hole. Before using the model, the free parameters of the Dark Energy model have been constrained with differential ages data. A narrow peak on top of a wide plateau in two parameters' distributions indicates a well defined best fit value embedded within a broad region of near-degenerate solutions. This means the data strongly favours one specific parameter value but also permit a wide range with comparable likelihood. Physically, it reflects that the Dark Energy dynamics are locally constrained yet globally insensitive to small parameter variations. An increasing $\log_{10}\left[M(z)/M_{0}\right]$ since $z=3$ signifies that black holes have continuously grown through accretion and mergers within the standard hierarchical formation scenario. The precise rate of this growth depends on the radiative efficiency $ε$, the effective accretion parameter $λ_{\rm eff}$, and the cumulative impact of merger events.

Figures (1)

• Figure 1: Fig. 1(a)-1(c) represent confidence contours in $\lambda_1-k_1~,~\lambda_1-\lambda_2~,~\lambda_1-k_2~, ~k_1-\lambda_2,~k_2-\lambda_2~\text{and}~k_1-k_2$ planes and individual distributions of free parameters $\lambda_1~,~k_1~, ~\lambda_2~\text{and}~k_2$. 1(d) represents the variation of the $\log\left\{\frac{M}{M_0}\right\}$ due to the accretion of BRB type DE onto Schwarzschild BH.