# Generalized Vaidya solutions in bimetric gravity

## TL;DR

This paper presents exact solutions in bimetric gravity showing that the endpoint of spherically symmetric collapse can be a Schwarzschild--(A)dS black hole, confirming previous speculations.

## Contribution

It provides explicit solutions in bimetric gravity that demonstrate the collapse endpoint is a Schwarzschild--(A)dS) black hole, extending understanding of gravitational collapse in this theory.

## Key findings

- Collapse solutions confirm Schwarzschild--(A)dS) black holes as end states
- Exact solutions include collapsing massless dust particles
- Supports previous theoretical speculation in bimetric gravity

## Abstract

In general relativity, the endpoint of spherically symmetric gravitational collapse is a Schwarzschild--[(A)dS] black hole. In bimetric gravity, it has been speculated that a static end state must also be Schwarzschild--[(A)dS]. To this end, we present a set of exact solutions, including collapsing massless dust particles. For these, the speculation is confirmed.