Radiation generated by accelerating and rotating charged black holes in (anti-)de Sitter space

TL;DR

This paper investigates the radiation emitted by accelerating and rotating charged black holes within (anti-)de Sitter spacetimes, analyzing how various parameters influence the radiation's amplitude and directional structure.

Contribution

It provides explicit relations between black hole parameters and radiation properties in (anti-)de Sitter backgrounds, extending understanding beyond asymptotically flat spacetimes.

Findings

Explicit relations between source parameters and radiation characteristics.

Analysis of radiation in de Sitter-like and anti-de Sitter-like conformal infinities.

Insights into the physical interpretation of complex black hole solutions.

Abstract

Asymptotic behaviour of gravitational and electromagnetic fields of exact type D solutions from the large Plebanski-Demianski family of black hole spacetimes is analyzed. The amplitude and directional structure of radiation is evaluated in cases when the cosmological constant is non-vanishing, so that the conformal infinities have either de Sitter-like or anti-de Sitter-like character. In particular, explicit relations between the parameters that characterize the sources (that is their mass, electric and magnetic charges, NUT parameter, rotational parameter, and acceleration) and properties of the radiation generated by them are presented. The results further elucidate the physical interpretation of these solutions and may help to understand radiative characteristics of more general spacetimes than those that are asymptotically flat.