The growth model of black hole is still a controversial topic. In the stationary metric, all in-falling matter must be accumulated outside the event horizon of the black hole, as clocked by a distant external observer. In the time-dependent metric, all in-falling matter can fall into the event horizon of the final black hole within very short time. We test these two growth models by joining LIGO and Insight-HXMT observations. We find the stationary model is inconsistent with LIGO and Insight-HXMT observations.

中文翻译：

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结合 LIGO 和 Insight-HXMT 观测测试黑洞的生长模型

黑洞的增长模型仍然是一个有争议的话题。在静止度量中，所有落入的物质都必须在黑洞的事件视界之外累积，由遥远的外部观察者计时。在时间相关的度量中，所有落入的物质都可以在很短的时间内落入最终黑洞的事件视界。我们通过加入 LIGO 和 Insight-HXMT 观察来测试这两种增长模型。我们发现平稳模型与 LIGO 和 Insight-HXMT 观测不一致。