Colliding spherically symmetric null dust in equilibrium

TL;DR

This paper introduces two new solutions to Einstein's equations that model the collision of spherically symmetric null dust streams, expanding understanding of such phenomena in general relativity.

Contribution

It provides novel exact solutions describing colliding null dust streams with spherical symmetry and an additional symmetry, which were not previously documented.

Findings

Two new solutions to Einstein's equations with null dust collision

Solutions exhibit spherical symmetry and an extra Killing vector

Advances understanding of null dust interactions in general relativity

Abstract

We present two recently obtained solutions of the Einstein equations with spherical symmetry and one additional Killing vector, describing colliding null dust streams.