Measurement of Schumann Resonance at Kamioka

11th Edoardo Amaldi Conference on Gravitational Waves

Atsuta, S.^1 ; Ogawa, T.^2 ; Yamaguchi, S.^3 ; Hayama, K.^4 ; Araya, A.^2 ; Kanda, N.^4 ; Miyakawa, O.^5 ; Miyoki, S.^5 ; Nishizawa, A.^6 ; Ono, K.^5 ; Saito, Y.^5 ; Somiya, K.^1 ; Uchiyama, T.^5 ; Uyeshima, M.^2 ; Yano, K.^1

Department of Physics, Tokyo Institute of Technology, 2-12-1, Oh-okayama, Meguro-ku, Tokyo

152-8551, Japan^1

Earthquake Research Institute, University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo

113-0032, Japan^2

Department of Biology and Geosciences, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka

558-8585, Japan^3

Department of Physics, Osaka City University, 3-3-138, Sugimoto, Sumiyoshi-ku, Osaka

558-8585, Japan^4

Institute for Cosmic Ray Research, University of Tokyo, 5-1-5, Kashiwa-no-Ha, Kashiwa City, Chiba

277-8582, Japan^5

Division of Physics Mathematics and Astronomy, California Institute of Technology, 1200 E, California Blvd, Pasadena

CA

91125, United States^6

关键词: Correlated noise;    Environmental magnetic fields;    Gravitational wave detectors;    Noise levels;    Schumann resonances;    Second generation;    Standing wave;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/716/1/012020/pdf
DOI  :  10.1088/1742-6596/716/1/012020

来源: IOP

【 摘 要 】

On the stochastic gravitational-wave search, correlated noise in two or more gravitational-wave detectors can be a serious problem. Schumann resonance is the name of a standing wave of electromagnetic fields, which is one of the correlated noise sources for the second-generation gravitational-wave detectors. We measured the noise levels of the environmental magnetic field both inside and outside the mine of KAGRA site at Kamioka. In this letter, we report the result of the measurement and compare the amplitude of magnetic fields inside and outside the mine to find possible issues or gain of constructing a detector underground.