Rotating "Black Holes" with Holes in the Horizon

TL;DR

This paper explores how axial singularities in Kerr-Schild solutions can create holes in black hole horizons, potentially allowing matter to escape and explaining phenomena like astrophysical jets.

Contribution

It demonstrates that axial singularities can break black hole horizons, forming tube-like regions that enable matter escape and may relate to jet formation.

Findings

Axial singularities can form holes in black hole horizons.

Holes in the horizon allow matter to escape without crossing it.

External electromagnetic or gravitational excitations can create these singularities.

Abstract

Kerr-Schild solutions of the Einstein-Maxwell field equations, containing semi-infinite axial singular lines, are investigated. It is shown that axial singularities break up the black hole, forming holes in the horizon. As a result, a tube-like region appears which allows matter to escape from the interior without crossing the horizon. It is argued that axial singularities of this kind, leading to very narrow beams, can be created in black holes by external electromagnetic or gravitational excitations and may be at the origin of astrophysically observable effects such as jet formation.