期刊
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
卷 2021, 期 5, 页码 -出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/ptep/ptab018
关键词
-
资金
- MEXT
- Japan Society for the Promotion of Science (JSPS) Leading-edge Research Infrastructure Program
- JSPS [26000005, JP17H06358, JP17H06361, JP17H06364, 17H06133]
- JSPS Core-to-Core Program A. Advanced Research Networks
- joint research program of the Institute for Cosmic Ray Research, University of Tokyo, National Research Foundation (NRF)
- Computing Infrastructure Project of KISTI-GSDC in Korea
- Academia Sinica (AS)
- AS Grid Center (ASGC)
- Ministry of Science and Technology (MoST) in Taiwan [AS-CDA-105-M06]
- LIGO project
- Virgo project
- JSPS KAKENHI [JP17H06207, JP18K03671, 19J01299, 20H05256]
- Joint Research Program of the Institute for Cosmic Ray Research (ICRR), University of Tokyo [2019-F19]
- Joint Usage/Research Center program of the Earthquake Research Institute (ERI), University of Tokyo [2019-B-03]
- Grants-in-Aid for Scientific Research [20H05256, 19J01299] Funding Source: KAKEN
This article introduces the overall situation of the KAGRA gravitational wave observatory, including equipment configuration and operation status, as well as calibration and characterization methods used for reconstructing and evaluating gravitational wave signals. The physical environmental monitoring system and geophysics interferometer are used to assess the data quality of the gravitational wave channel and play an important role in gravitational wave searches.
KAGRA is a newly built gravitational wave observatory, a laser interferometer with a 3 km arm length, located at Kamioka, Gifu, Japan. In this series of articles we present an overview of the baseline KAGRA, for which we finished installing the designed configuration in 2019. This article describes the method of calibration (CAL) used for reconstructing gravitational wave signals from the detector outputs, as well as the characterization of the detector (DET). We also review the physical environmental monitoring (PEM) system and the geophysics interferometer (GIF). Both are used for characterizing and evaluating the data quality of the gravitational wave channel. They play important roles in utilizing the detector output for gravitational wave searches. These characterization investigations will be even more important in the near future, once gravitational wave detection has been achieved, and in using KAGRA in the gravitational wave astronomy era.
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