Speaker
Takafumi Ushiba
(Institute for Cosmic Ray Research, The University of Tokyo)
Description
KAGRA is a kilometer-scale cryogenic gravitational-wave detector located in Japan. From June 11 to November 18, 2026, KAGRA participated in the joint observing run (O4c) with all four sapphire mirrors cooled to below 100 K. KAGRA is currently working toward the sensitivity goals for the next short observing run (IR1) and the observing run 5. In this talk, lessons learned from O4c, the current status, and future plans for IR1 and O5 will be presented.
Author
Takafumi Ushiba
(Institute for Cosmic Ray Research, The University of Tokyo)