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Neutron star as a mirror for gravitational waves
Astrophysics and Space Science ( IF 1.9 ) Pub Date : 2020-09-01 , DOI: 10.1007/s10509-020-03863-w
Hao Wei , Da-Chun Qiang , Zhong-Xi Yu , Hua-Kai Deng

Gravitational wave (GW) has become one of the most active fields in physics and astronomy since the first direct detection of GW event in 2015. As is well known, multiple images of GW events are possible through the gravitational lenses. Here, we propose a novel mirror imaging mechanism for GW events different from the gravitational lens. In the literature, the superconductor was predicted to be highly reflective mirror for GWs. It is well known that neutron stars exhibit superconductivity and superfluidity. In this work, we predict that there are two types of GW mirror imaging phenomena caused by the neutron star located in Milky Way or the same host galaxy of GW source, which might be detected within a life period of man (namely the time delay $\Delta t$ can be a few years to a few tens of years). It is expected to witness this predicted GW mirror imaging phenomenon in the near future. In the long term, the observations of this novel GW mirror imaging phenomenon might help us to find numerous neutron stars unseen by other means, and learn more about the complicated internal structures of neutron stars, as well as their equations of state.

中文翻译:

中子星作为引力波的镜子

自 2015 年首次直接探测到引力波事件以来,引力波 (GW) 已成为物理学和天文学中最活跃的领域之一。众所周知,通过引力透镜可以拍摄多幅引力波事件图像。在这里,我们为不同于引力透镜的 GW 事件提出了一种新颖的镜面成像机制。在文献中,超导体被预测为 GW 的高反射镜。众所周知,中子星具有超导性和超流性。在这项工作中,我们预测有两种类型的引力波镜成像现象是由位于银河系或引力波源同一宿主星系的中子星引起的,这两种现象可能会在人类有生之年被探测到(即时间延迟$ \Delta t$ 可以是几年到几十年)。预计在不久的将来会见证这种预测的引力波镜像现象。从长远来看,对这种新型引力波镜成像现象的观测,可能有助于我们发现大量其他方式看不到的中子星,进一步了解中子星复杂的内部结构及其状态方程。
更新日期:2020-09-01
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