Generalized Vaidya solutions in bimetric gravity

Understand

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.