Speaker
Prof.
Kentaro Somiya
(Tokyo Institute of Technology)
Description
KAGRA is the world first large scale underground gravitational wave telescope and one of the advantages of being built under the ground is to be isolated from gravity gradient fluctuation, or so-called Newtonian noise. According to a well-established theoretical models, the seismic-driven or atmospheric-driven Newtonian noise level in KAGRA is lower than other ground based telescopes, but one concern is that we have underground water flowing violently near the test masses and it may cause Newtonian noise. We would like to present our recent study on water-driven Newtonian noise to show its influence in the sensitivity of KAGRA.
Primary author
Prof.
Kentaro Somiya
(Tokyo Institute of Technology)
Co-authors
Prof.
Atsushi Nishizawa
(University of Tokyo)
Prof.
Kazuhiro Hayama
(Fukuoka University)
Mr
Takashi Inoue
(Tokyo Institute of Technology)
Mr
Yuting Liu
(Tokyo Institute of Technology)
