KAGRA: 2.5 generation interferometric gravitational wave detector
By T. Akutsu, M. Ando, K. Arai, Y. Arai, S. Araki, A. Araya, N. Aritomi, H. Asada, Y. Aso, S. Atsuta and 184 more. Nature Astronomy, 2018
510 citations recorded by the source corpus.
The recent detections of gravitational waves (GWs) reported by the LIGO and Virgo collaborations have made a significant impact on physics and astronomy. A global network of GW detectors will play a key role in uncovering the unknown nature of the sources in coordinated observations with astronomical telescopes and detectors. Here we introduce KAGRA, a new GW detector with two 3 km baseline arms arranged in an ‘L’ shape. KAGRA’s design is similar to the second generations of Advanced LIGO and Advanced Virgo, but it will be operating at cryogenic temperatures with sapphire mirrors. This low-temperature feature is advantageous for improving the sensitivity around 100 Hz and is considered to be an important feature for the third-generation GW detector concept (for example, the Einstein Telescope of Europe or the Cosmic Explorer of the United States). Hence, KAGRA is often called a 2.5-generation GW detector based on laser interferometry. KAGRA’s first observation run is scheduled in late 2019, aiming to join the third observation run of the advanced LIGO–Virgo network. When operating along with the existing GW detectors, KAGRA will be helpful in locating GW sources more accurately and determining the source parameters with higher precision, providing information for follow-up observations of GW trigger candidates. KAGRA is a new gravitational wave detector being built in Japan. Unlike LIGO/Virgo, it will operate at cryogenic temperatures with sapphire mirrors. KAGRA will help improve the localization of gravitational wave detections and determination of the source parameters.
Subfields: Astronomy and Astrophysics, Atomic and Molecular Physics, and Optics, Ocean Engineering
View Paper: https://www.semanticscholar.org/paper/5965313ef2b1ccd9920b0159c36e7bc12e9478cc
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Citations in the corpus
- Probing the theory of gravity with gravitational lensing of gravitational waves and galaxy surveys (2019, background): “…and with the upcoming observatories such as KAGRA (Large-scale ? mukherje@iap.fr † wandelt@iap.fr ‡ silk@iap.fr Cryogenic Gravitational wave Telescope) (Akutsu et al. 2019) and LIGO-India (Unnikrishnan 2013), we can measure the gravitational wave signals from binary neutron stars (NS-NS),…”
- GWTC-2.1: Deep extended catalog of compact binary coalescences observed by LIGO and Virgo during the first half of the third observing run (2021, background): “The LIGO, Virgo, and KAGRA [293] detectors are currently offline and undergoing commissioning to enhance their sensitivities, and plan to all collect data simultaneously during the fourth observing run (O4) [68].”
- The PVLAS experiment: A 25 year effort to measure vacuum magnetic birefringence (2020, unknown): “Indeed both LIGO detectors (Hanford, WA and Linvingston, LA) and the VIRGO detector (Cascina, PI, Italy) have detected gravitational waves and the Japanese interferometer KAGRA is on its way [124].”