Matter Accretion onto a Conformal Gravity Black Hole

TL;DR

This paper investigates the steady-state accretion of test fluids onto conformal gravity black holes using a dynamical Hamiltonian approach, analyzing critical points, flow classifications, and mass accretion rates with graphical insights.

Contribution

It introduces a Hamiltonian method to analyze accretion onto conformal gravity black holes and explores the behavior of different fluid equations of state, including polytropic fluids.

Findings

Schwarzschild black holes show typical accretion signatures compared to conformal gravity black holes.

Maximum accretion rates occur near the horizons, while minimum rates occur between them.

Accretion parameters significantly influence the flow and are graphically represented.

Abstract

The accretion of test fluids flowing onto a black hole is investigated. Particularly, by adopting a dynamical Hamiltonian approach, we are capable to find the critical points for various cases of black hole in conformal gravity. In these cases, we have analyzed the general solutions of accretion employing the isothermal equations of state. The steady state and spherically symmetric accretion of different test fluids onto the conformal gravity black hole has been considered. Further, we have classified these flows in the context of equations of state and the cases of conformal gravity black hole. The new behavior of polytropic fluid accretion is also discussed in all three cases of black hole. Black hole mass accretion rate is the most important part of this research in which we have investigated that the Schwarzschild black hole produce a typical signature than the conformal gravity black hole and Schwarzschild de-Sitter black hole. The critical fluid flow and the mass accretion rate have been presented graphically by the impact parameters $\beta$, $\gamma$, $k$ and these parameters have great significance. Additionally, the maximum mass rate of accretion fall near the universal and Killing horizons and minimum rate of accretion occurs in between these regions. Finally, the results are compared with the different cases of black hole available in the literature.