Mr
Soichiro Morisaki
(The University of Tokyo)
9/10/19, 4:10 PM
Gravitational waves
Oral presentation in parallel session
Accurate, precise and prompt sky localization of gravitational-wave sources is essential to the success of multi messenger astronomy. One of the most accurate sky localizations we can obtain is from full signal parameter estimation obtained with the LIGO-Virgo LALInference software [1], done after a quick initial sky localization with the Bayestar software [2]. While more accurate, the...
Dr
Takaaki Yokozawa
(Institute for Cosmic Ray Research, University of Tokyo)
9/10/19, 4:25 PM
Gravitational waves
Oral presentation in parallel session
KAGRA is the 2nd generation large gravitational wave detector, which is placed in Japan. There are two characteristic features, underground and cryogenic detector. Toward joining the international network observation, called O3 run, KAGRA must operate with the better sensitivity. For this purpose, we installed the various environmental monitors, such as accelerometer, seismometer,...
Dr
Keiko Kokeyama
(ICRR, University of Tokyo)
9/10/19, 4:40 PM
Gravitational waves
Oral presentation in parallel session
The underground gravitational-wave detector, KAGRA, is rapidly being commissioned and integrated towards the joint observation run with LIGO and VIRGO.
The laser-interferometer type of the gravitational-wave detectors are based on very complicated optical systems, with numerous feedback control loops at an extreme high precision. Since the interferometer is so complex, there are many...
Prof.
Kentaro Somiya
(Tokyo Institute of Technology)
9/10/19, 4:55 PM
Gravitational waves
Oral presentation in parallel session
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...
Prof.
Nobuyuki Kanda
(Graduate School of Science / NITEP, Osaka City University)
9/10/19, 5:10 PM
Gravitational waves
Oral presentation in parallel session
KAGRA is a laser interferometric gravitational wave detector that is placed underground Kamioka-mine, Gifu, Japan. KAGRA is planning to have observational operation in late 2019.
Since the data is obtained in the KAGRA tunnel, it have to be transfered, stored and processed at Off-site facilities where have enough computing environment.
We have been constructed KAGRA's data transfer and...
Hideyuki Tagoshi
(ICRR, The University of Tokyo)
9/10/19, 5:25 PM
Gravitational waves
Oral presentation in parallel session
KAGRA is planning to start the observation run in 2019.
If it is realized, it is done during LIGO's and Virgo's 3rd Observation run.
KAGRA data analysis group has been preparing for this observation.
Gravitational wave signals are categorized based on the property of signals.
Those property include the duration of the signal, predictability of waveforms,
and statistical nature...
