The Current Status and Future Prospects of KAGRA, the Large-Scale Cryogenic Gravitational Wave Telescope Built in the Kamioka Underground
The Current Status and Future Prospects of KAGRA, the Large-Scale Cryogenic Gravitational Wave Telescope Built in the Kamioka Underground
复制标题
DOI：
10.3390/galaxies10030063
复制
发表时间：
2022-06-01
期刊：
影响因子：
2.5
通讯作者：
Zhao, Yuhang
中科院分区：
文献类型：
--
作者：
Abe, Homare;Akutsu, Tomotada;Zhao, Yuhang
KAGRA是日本制造的引力波(GW)探测器，具有两个独特的关键特征：它建在地下，测试质量镜冷却到低温。这些特征没有包括在其他千米级的探测器中，但将被用于未来的探测器，如爱因斯坦望远镜。KAGRA于2020年与GEO600进行了第一次联合观测。在这一观察中，KAGRA对GWS的灵敏度低于其他千米尺度的探测器，如LIGO和Virgo。然而，探测器的进一步升级正在进行中，以达到在计划于2022年进行的下一次观测运行中检测GWS的灵敏度。本文对该领域的现状、敏感性和未来前景进行了综述。
KAGRA is a gravitational-wave (GW) detector constructed in Japan with two unique key features: It was constructed underground, and the test-mass mirrors are cooled to cryogenic temperatures. These features are not included in other kilometer-scale detectors but will be adopted in future detectors such as the Einstein Telescope. KAGRA performed its first joint observation run with GEO600 in 2020. In this observation, the sensitivity of KAGRA to GWs was inferior to that of other kilometer-scale detectors such as LIGO and Virgo. However, further upgrades to the detector are ongoing to reach the sensitivity for detecting GWs in the next observation run, which is scheduled for 2022. In this article, the current situation, sensitivity, and future perspectives are reviewed.