Escape of Charged Particles Moving around a Weakly Magnetized Kerr Black Hole

TL;DR

This paper investigates how charged particles behave and escape around a weakly magnetized Kerr black hole, analyzing neutral and charged particle dynamics, and how black hole rotation influences their escape and chaotic motion.

Contribution

It provides new analytical and numerical insights into the escape conditions and chaotic dynamics of charged particles near magnetized Kerr black holes.

Findings

Analytical escape conditions for neutral particles.

Numerical analysis of charged particle ISCOs.

Black hole rotation impacts particle escape and chaos.

Abstract

We study the dynamics and escape of charged particles initially orbiting a weakly magnetized Kerr black hole after they get kicked in the direction normal to the orbit. The case of neutral particles is analysed first and the escape conditions are given analytically. A general analysis of charged particles innermost stable circular orbits (ISCO)s is performed numerically. We then study the charged particles three-dimensional motion and give an effective condition for their escape. We also discuss how the black hole rotation affects the escape of charged particles and the chaoticness in their dynamics.