In previous work, we established theoretical results concerning the effect of matter shells surrounding a gravitational wave (GW) source, and we now apply these results to astrophysical scenarios. Firstly, it is shown that GW echoes that are claimed to be present in LIGO data of certain events, could not have been caused by a matter shell. However, it is also shown that there are scenarios in which matter shells could make modifications of order a few percent to a GW signal; these scenarios include binary black hole mergers, binary neutron star mergers, and core collapse supernovae.

中文翻译：

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由于周围的物质外壳对来自引力波事件的信号的修改

在之前的工作中，我们建立了关于引力波 (GW) 源周围物质壳效应的理论结果，现在我们将这些结果应用于天体物理场景。首先，表明某些事件的 LIGO 数据中声称存在的 GW 回波不可能是由物质外壳引起的。然而，它也表明，在某些情况下，物质壳可以对 GW 信号进行几个百分点的修改；这些场景包括双黑洞合并、双中子星合并和核心坍缩超新星。