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The Current Status and Future Prospects of KAGRA, the Large-Scale Cryogenic Gravitational Wave Telescope Built in the Kamioka Underground

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Tatsuki Washimi
Updated by:
Tatsuki Washimi
Document Created:
14 Dec 2021, 11:24
Contents Revised:
27 Apr 2022, 10:08
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27 Apr 2022, 10:08
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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.

Galaxies 2022, 10(3), 63
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  • JGW-G2113587: [Publication plan] Galaxies special issue (Invited paper)
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