Gravitational wave astronomy: the current status
Gravitational wave astronomy: the current status
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DOI：
10.1007/s11433-015-5748-6
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
D. Blair;L. Ju;Chunnong Zhao;L. Wen;Q. Chu;Q. Fang;R. Cai;Jiangrui Gao;Xuechun Lin;
中科院分区：
文献类型：
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作者：
D. Blair;L. Ju;Chunnong Zhao;L. Wen;Q. Chu;Q. Fang;R. Cai;Jiangrui Gao;Xuechun Lin;
在爱因斯坦广义相对论诞生100周年之际，本文回顾了从阿赫兹到千赫频率范围内的引力波天文学的现状。本文第一节回顾了引力波天文学从爱因斯坦的第一次预言到我们现在对引力波频谱的认识的历史发展。结果表明，可以预期很快检测音频频谱中的信号，南北对下一代探测器将提供巨大的科学效益。第二节回顾了引力波理论和利用激光干涉测量法进行探测的原理。先进的LIGO探测器的状态，然后描述。这些探测器在不久的将来很有可能探测到第一批事件。第3节回顾了日本目前正在开发的KAGRA探测器，这将是第一个使用低温试验质量的激光干涉仪探测器。本文第四节回顾了利用脉冲星计时技术在纳赫兹频段探测引力波的情况。第5节回顾了在宇宙微波背景极化中可探测到的阿赫兹频段引力波探测的现状，并讨论了探测大爆炸原始波的前景。宗派中描述的技术。1-5已经对引力波源的强度施加了很大的限制。Sects. 6和7审查雄心勃勃的计划，未来的空间为基础的引力波探测器在毫赫兹频段。第6节介绍了中国开发天基引力波探测器的路线图，第7节讨论了空间干涉测量的一项关键使能技术，即时间延迟干涉测量。
In the centenary year of Einstein’s General Theory of Relativity, this paper reviews the current status of gravitational wave astronomy across a spectrum which stretches from attohertz to kilohertz frequencies. Sect. 1 of this paper reviews the historical development of gravitational wave astronomy from Einstein’s first prediction to our current understanding the spectrum. It is shown that detection of signals in the audio frequency spectrum can be expected very soon, and that a north-south pair of next generation detectors would provide large scientific benefits. Sect. 2 reviews the theory of gravitational waves and the principles of detection using laser interferometry. The state of the art Advanced LIGO detectors are then described. These detectors have a high chance of detecting the first events in the near future. Sect. 3 reviews the KAGRA detector currently under development in Japan, which will be the first laser interferometer detector to use cryogenic test masses. Sect. 4 of this paper reviews gravitational wave detection in the nanohertz frequency band using the technique of pulsar timing. Sect. 5 reviews the status of gravitational wave detection in the attohertz frequency band, detectable in the polarisation of the cosmic microwave background, and discusses the prospects for detection of primordial waves from the big bang. The techniques described in sects. 1–5 have already placed significant limits on the strength of gravitational wave sources. Sects. 6 and 7 review ambitious plans for future space based gravitational wave detectors in the millihertz frequency band. Sect. 6 presents a roadmap for development of space based gravitational wave detectors by China while sect. 7 discusses a key enabling technology for space interferometry known as time delay interferometry.