Accretion onto a Moving Reissner-Nordstr\"{o}m Black Hole

TL;DR

This paper derives an analytical model describing how a gaseous medium accretes onto a moving charged black hole, providing insights into the physical processes involved.

Contribution

It presents the first analytic solution for accretion onto a moving Reissner-Nordström black hole with a specific equation of state.

Findings

Derived explicit velocity components for accretion flow.

Provided a formula for mass accretion rate depending on black hole parameters.

Enhanced understanding of accretion physics for moving charged black holes.

Abstract

We obtain an analytic solution for accretion of a gaseous medium with a adiabatic equation of state ($P=\rho$) onto a Reissner-Nordstr\"{o}m black hole which moves at a constant velocity through the medium. We obtain the specific expression for each component of the velocity and present the mass accretion rate which depends on the mass and the electric charge. The result we obtained may be helpful to understand the physical mechanism of accretion onto a moving black hole.