Accreting Fluids onto Regular Black Holes Via Hamiltonian Approach

TL;DR

This paper studies how different test fluids accrete onto regular black holes, analyzing flow behavior, sonic points, and phase space dynamics using a Hamiltonian approach to understand the accretion process.

Contribution

It introduces a Hamiltonian framework to analyze fluid accretion onto specific regular black holes, highlighting the influence of fluid properties and black hole features.

Findings

Flow behavior depends on the equation of state and black hole parameters.

Existence of sonic points is established for various fluids.

Critical points influence the fluid velocity and phase space dynamics.

Abstract

We investigate the accretion of test fluids onto regular black holes such as Kehagias-Sfetsos black hole and a regular black hole with Dagum Distribution Function. We analyze the accretion process when different test fluids are falling onto these regular black holes. The accreting fluid is being classified through equation of state according to features of regular black holes. The behavior of fluid flow and the existence of sonic points is being checked for these regular black holes. It is noted that three velocity depends on critical points and equation of state parameter on phase space.