Dark Energy Accretion onto Van der Waal's Black Hole

TL;DR

This paper investigates the accretion process of fluid flow onto Van der Waal's black holes, analyzing critical points, fluid velocity, and effects on black hole mass and universe density, comparing with Schwarzschild black holes.

Contribution

It introduces a detailed analysis of fluid accretion onto Van der Waal's black holes, including critical points and mass evolution, which is novel compared to traditional black hole models.

Findings

Mass relates to redshift during accretion

Accreting power varies with fluid type

Critical points and sound speed are characterized

Abstract

We consider the most general static spherically symmetric black hole metric. The accretion of the fluid flow around the Van der Waal's black hole is investigated and we calculate the fluid's four-velocity, the critical point and the speed of sound during the accretion process. We also analyze the nature of the universe's density and the mass of the black hole during accretion of the fluid flow. The density of the fluid flow is also taken into account. We observe that the mass is related to redshift. We compare the accreting power of the Van der Waal's black hole with Schwarzschild black hole for different accreting fluid.