Speaker
Takaaki Yokozawa
(ICRR, University of Tokyo, Japan)
Description
KAGRA is a kilometer-scale gravitational-wave interferometer located in Japan. It has two unique features: a cryogenic environment and an underground site. KAGRA joined the O4c observing run in July 2026 with a binary neutron star merger range of 7.5 Mpc. In this talk, we present an evaluation of various environmental noise sources affecting the KAGRA detector, with a particular focus on vibrational noise. We also report measurements of the resonant frequencies of optics installed in the pre-stabilized laser (PSL) room, obtained through shaker injection and tapping tests.
Author
Takaaki Yokozawa
(ICRR, University of Tokyo, Japan)