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.

中文翻译：

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双度量重力中的广义 Vaidya 解

在广义相对论中，球对称引力坍缩的终点是一个史瓦西--[(A)dS]黑洞。在双度量引力中，有人推测静态终态也必须是 Schwarzschild--[(A)dS]。为此，我们提出了一组精确的解决方案，包括塌陷无质量的尘埃粒子。对于这些，猜测得到证实。