Kerr-Newman-Taub-NUT Black Hole Tunnelling Radiation

TL;DR

This paper studies Hawking radiation via tunnelling in Kerr-Newman-Taub-NUT black holes, introducing a new coordinate system that reveals non-thermal features of the radiation due to conservation laws and self-gravity effects.

Contribution

It introduces a novel coordinate system for Kerr-Newman-Taub-NUT black holes and demonstrates that Hawking radiation is non-thermal when accounting for conservation laws.

Findings

Hawking radiation is not purely thermal.

The new coordinate system simplifies analysis at the event horizon.

Conservation of angular momentum and energy affects radiation characteristics.

Abstract

The tunnelling process always occur nearby the event horizon of the black hole. In this paper, we investigate the tunnelling radiation in the background of the Kerr-Newman-Taub-NUT black hole. The new coordinate system for Kerr-Newman-Taub-NUT is introduced, which helps us to form new line element. This line element helps us to show that new coordinate is exhaustively acted at event horizon. With the help of conservation of angular momentum, self gravitational effect and energy, we will show that Hawking's radiation is not exclusively thermal.