Quasi-normal modes for black hole solutions unknown in analytical form

TL;DR

This paper reviews methods for studying the quasi-normal modes of black holes that lack analytical solutions, which are relevant in theoretical models and astrophysical contexts.

Contribution

It introduces approaches to analyze quasi-normal modes for black holes without known analytical solutions, expanding the scope of black hole perturbation studies.

Findings

Discussed potential methods for studying non-analytical black holes

Highlighted relevance to theoretical models and astrophysical scenarios

Reviewed existing literature on quasi-normal modes

Abstract

We review the papers [1-3]. We discuss possibilities of studying the quasi-normal modes of black holes that are not known in an analytical form. Such black holes appear as solutions in various theoretical models and real astrophysical approximations when one takes into account the black hole neighborhood.