Seismic Background Limitation of Lunar Gravitational-Wave Detectors,Physical Review Letters

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Seismic Background Limitation of Lunar Gravitational-Wave Detectors
Physical Review Letters ( IF 8.1 ) Pub Date : 2022-08-12 , DOI: 10.1103/physrevlett.129.071102
Jan Harms ₁

Affiliation

New concepts were recently proposed for gravitational-wave (GW) detectors on the Moon. These include laser-interferometric detectors, proposed as free-range or optical-fiber interferometers, and inertial acceleration sensors. Some of them exploit the response of the Moon to GWs, others follow the design of current laser-interferometric GW detectors, which directly measure the gravitational strain with suspended optics. All of these ideas emerged since the Moon offers an extremely quiet geophysical environment compared to Earth, but at the same time, one must realize that even the quiet lunar environment sets limits to the sensitivity of lunar GW detectors. In this Letter, we compare the proposed mission concepts in terms of their response to GWs and evaluate how they are affected by the lunar seismic background. We discuss available mitigation strategies. From these analyses, we infer the prime observation band of each detector concept.

中文翻译：

月球引力波探测器的地震背景限制

最近为月球上的引力波 (GW) 探测器提出了新概念。这些包括激光干涉检测器，建议作为自由范围或光纤干涉仪，以及惯性加速度传感器。他们中的一些人利用了月球对引力波的响应，其他人则遵循当前激光干涉引力波探测器的设计，该探测器使用悬浮光学器件直接测量引力应变。所有这些想法都是因为月球提供了一个与地球相比极其安静的地球物理环境，但与此同时，人们必须意识到，即使是安静的月球环境也会限制月球 GW 探测器的灵敏度。在这封信中，我们比较了提议的任务概念对 GW 的响应，并评估了它们如何受到月球地震背景的影响。我们讨论了可用的缓解策略。从这些分析中，我们推断出每个探测器概念的主要观察波段。

更新日期：2022-08-12

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