ICRR young researchers' workshop

Session

15 Jul 2026, 17:20

Large Seminar Room 601 (Kashiwa) (Kashiwa)

Conveners

Session 6: Gravitational wave

• Chenghao Zhu ()

Contribution list Timetable

21. The current status of the gravitational wave detector KAGRA

Shoichi Oshino (ICRR)

15/07/2026, 17:20

KAGRA is a 3 km cryogenic, underground laser interferometric
gravitational-wave detector in Kamioka, Japan, and a member of the
international LIGO–Virgo–KAGRA network. This talk reviews KAGRA's
performance and contribution during the fourth observing run (O4).

22. Direct Wave and Review of gravitational wave data analysis

Keiichiro Kubota

15/07/2026, 17:40

Gravitational waves emitted as a binary black hole merges and settles into a stationary state are called ringdown gravitational waves, which provide key clues to exploring the nature of strong gravity. These waves are conventionally modeled by a superposition of damped oscillations known as quasi-normal modes (QNMs). Recently, the potential contribution of a "direct wave" component has been...

23. Robust Inference of the Binary Black Hole Spin Population Using Gravitational-Wave Data

Kazuya Kobayashi

15/07/2026, 18:00

The spin population of binary black holes (BBHs) provides key insights into their formation channels. Recent gravitational-wave (GW) observations have suggested the presence of spin subpopulations and correlations between spin and other BBH parameters. However, the limited measurability of spins in certain regions of the parameter space can bias the inference of the underlying spin population....