Magnetic reconnection and energy extraction from a Konoplya Zhidenko rotating non Kerr black hole

TL;DR

This paper investigates magnetic reconnection as an energy extraction mechanism in a Konoplya-Zhidenko rotating non-Kerr black hole, showing that deformation enhances energy extraction efficiency compared to Kerr black holes.

Contribution

It introduces the impact of a deformation parameter on magnetic reconnection energy extraction in non-Kerr black holes, expanding potential energy extraction regions and efficiencies.

Findings

Deformation parameter enlarges energy extraction region.

Increases maximum power and efficiency of energy extraction.

Outperforms Kerr black hole in energy extraction capabilities.

Abstract

Recently, magnetic reconnection has attracted considerable attention as a novel energy extraction mechanism, relying on the rapid reconnection of magnetic field lines within the ergosphere. We have investigated the properties of the energy extraction via magnetic reconnection in a Konoplya-Zhidenko rotating non-Kerr black hole spacetime with an extra deformation parameter. Our results show that the positive deformation parameter expands the possible region of energy extraction and improves the maximum power, maximum efficiency, and the maximum ratio of energy extraction between magnetic reconnection and the Blandford-Znajek process. This means that in the Konoplya-Zhidenko rotating non-Kerr black hole spacetime one can extract more energy via magnetic reconnection than in the Kerr black hole case. These effects of the deformation parameter may provide valuable clues for future astronomical observations of black holes and verification of gravity theories.