535 citations · 1.1k across the 16 of their papers we have counts for
16 papers
Application of the independent component analysis to the iKAGRA data
KAGRA Collaboration, T. Akutsu, M. Ando +244
We apply the independent component analysis (ICA) to the real data from a gravitational wave detector for the first time. Specifically we use the iKAGRA data taken in April 2016, a…
First cryogenic test operation of underground km-scale gravitational-wave observatory KAGRA
KAGRA Collaboration, T. Akutsu, M. Ando +198
KAGRA is a second-generation interferometric gravitational-wave detector with 3-km arms constructed at Kamioka, Gifu in Japan. It is now in its final installation phase, which we c…
KAGRA: 2.5 Generation Interferometric Gravitational Wave Detector
T. Akutsu, M. Ando, K. Arai +188
The recent detections of gravitational waves (GWs) reported by LIGO/Virgo collaborations have made significant impact on physics and astronomy. A global network of GW detectors wil…
Construction of KAGRA: an Underground Gravitational Wave Observatory
T. Akutsu, M. Ando, S. Araki +222
Major construction and initial-phase operation of a second-generation gravitational-wave detector KAGRA has been completed. The entire 3-km detector is installed underground in a m…
The status of KAGRA underground cryogenic gravitational wave telescope
KAGRA Collaboration, T. Akutsu, M. Ando +146
KAGRA is a 3-km interferometric gravitational wave telescope located in the Kamioka mine in Japan. It is the first km-class gravitational wave telescope constructed underground to…
Ground Based Low-Frequency Gravitational-wave Detector With Multiple Outputs
Ayaka Shoda, Yuya Kuwahara, Masaki Ando +4
We have developed a new gravitaional-wave (GW) detector, TOrsion-Bar Antenna (TOBA), with multiple-output configuration. TOBA is a detector with bar-shaped test masses that rotate…
Pre-DECIGO can get the smoking gun to decide the astrophysical or cosmological origin of GW150914-like binary black holes
Takashi Nakamura, Masaki Ando, Tomoya Kinugawa +9
Pre-DECIGO consists of three spacecraft arranged in an equilateral triangle with 100km arm lengths orbiting 2000km above the surface of the earth. It is hoped that the launch date…
Search for a stochastic gravitational wave background at 1-5 Hz with Torsion-bar Antenna
Yuya Kuwahara, Ayaka Shoda, Kazunari Eda +1
We set the first upper limit on the stochastic gravitational wave (GW) background in the frequency range of using a Torsion-bar Antenna (TOBA). A TOBA is a GW de…
Toward the detection of gravitational waves under non-Gaussian noises II. Independent Component Analysis
Soichiro Morisaki, Jun'ichi Yokoyama, Kazunari Eda +1
We introduce a new analysis method to deal with stationary non-Gaussian noises in gravitational wave detectors in terms of the independent component analysis. First, we consider th…
All-sky coherent search for continuous gravitational waves in 6-7 Hz band with a torsion-bar antenna
Kazunari Eda, Ayaka Shoda, Yuya Kuwahara +2
A torsion-bar antenna (TOBA) is a low-frequency terrestrial gravitational wave (GW) antenna which consists of two orthogonal bar-shaped test masses. We upgraded the prototype TOBA…
Determination of mass of an isolated neutron star using continuous gravitational waves with two frequency modes: an effect of a misalignment angle
Kazunari Eda, Kenji Ono, Yousuke Itoh
A rapidly spinning neutron star (NS) would emit a continuous gravitational wave (GW) detectable by the advanced LIGO, advanced Virgo, KAGRA and proposed third generation detectors…
A new estimation method for mass of an isolated neutron star using gravitational waves
Kenji Ono, Kazunari Eda, Yousuke Itoh
We investigate a possibility of estimating mass of an isolated rapidly rotating neutron star (NS) from a continuous gravitational wave (GW) signal emitted by the NS. When the GW pa…
Gravitational waves as a probe of dark matter mini-spikes
Kazunari Eda, Yousuke Itoh, Sachiko Kuroyanagi +1
Recent studies show that an intermediate mass black hole (IMBH) may develop a dark matter (DM) mini-halo according to some BH formation scenarios. We consider a binary system compo…
Improving parameter estimation accuracy with torsion-bar antennas
Kazunari Eda, Ayaka Shoda, Yousuke Itoh +1
We propose a new antenna configuration of a torsion-bar antenna (TOBA) and study its performance. A TOBA is a novel type of an antenna for low-frequency gravitational waves (GWs) w…
Prospects for Observing and Localizing Gravitational-Wave Transients with Advanced LIGO, Advanced Virgo and KAGRA
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1319
We present our current best estimate of the plausible observing scenarios for the Advanced LIGO, Advanced Virgo and KAGRA gravitational-wave detectors over the next several years,…
A new probe of dark matter properties: gravitational waves from an intermediate mass black hole embedded in a dark matter mini-spike
Kazunari Eda, Yousuke Itoh, Sachiko Kuroyanagi +1
An intermediate mass black hole (IMBH) may have a dark matter (DM) mini-halo around it and develop a spiky structure within less than a parsec from the IMBH. When a stellar mass ob…