December 9, 2020

Hi All:

The LIGO-Virgo-KAGRA collaborations have reviewed the readiness status of the detectors improvements and A+/AdV+ modifications in preparation for O4. As of November 2020, the O4 observing run is projected not to begin before June 2022, due to both key procurement delays and COVID-related delays. A number of significant modifications to detector systems during the next six months will refine the understanding of COVID impacts on the schedule. A revised projection of the O4 start date will be given in Spring 2021, based on lessons learned.

Sincerely,
Patrick, Giovanni, Hisaaki, Dave, Albert, Stavros, Takaaki, Masatake

KAGRA Scientific Congress Newsletter No.7 is now online.

Contents:
p.1 KAGRA entered the observing mode!
p.3 LVK Committee on Climate Change by Luca Baiotti
p.4 What made you decide to study gravitational waves? 
by Heather Fong
p.5-9 COVID-19 report from each region
by Zhoujian Cao, Ray-Kuang Lee, Chunglee Kim, Flavio Travasso,
Sachiko Kuroyanagi, Quynh Lan Nguyen, Hisaaki Shinkai, and Yoshihisa Obayashi
p.6 Newly Joind KASI by Sungho Lee
p.10 retirement of Prof. Yoshio Saito by Takashi Uchiyama
p.11 previous F2F
p.12 Poster Award, PhD thesis
p.14 We hear that …

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February 25, 2020

On February 25, 2020, KAGRA started observing run after its commissioning procedures and engineering runs.

KAGRA is a large-scale cryogenic gravitational-wave telescope developed in Kamioka, Hida City, Gifu Prefecture, Japan under the leadership of the University of Tokyo’s Institute for Cosmic Ray Research (ICRR) with contributions from the National Astronomical Observatory of Japan (NAOJ) and the High Energy Accelerator Research Organization (KEK). The construction started in 2010 and completed in the last year [press release].

KAGRA’s control room just after the observation start