Modifications to the signal from a gravitational wave event due to a surrounding shell of matter

被引：0
作者：
Monos Naidoo
Nigel T. Bishop
Petrus J. van der Walt
机构：
[1] Rhodes University,Department of Mathematics
来源：
General Relativity and Gravitation | 2021年 / 53卷
关键词：
Gravitational waves; Gravitational wave echoes; Bondi-Sachs; Matter shell; Linearized perturbation theory;
D O I：
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学科分类号：
摘要：
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.
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