KAGRA

2.5 generation interferometric gravitational wave detector

KAGRA collaboration

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)35-40
Number of pages6
JournalNature Astronomy
Volume3
Issue number1
DOIs
Publication statusPublished - 2019 Jan 1

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gravitational waves
detectors
LIGO (observatory)
telescopes
laser interferometry
cryogenic temperature
astronomy
sapphire
actuators
mirrors
physics
sensitivity

ASJC Scopus subject areas

  • Astronomy and Astrophysics

Cite this

KAGRA : 2.5 generation interferometric gravitational wave detector. / KAGRA collaboration.

In: Nature Astronomy, Vol. 3, No. 1, 01.01.2019, p. 35-40.

Research output: Contribution to journalArticle

KAGRA collaboration. / KAGRA : 2.5 generation interferometric gravitational wave detector. In: Nature Astronomy. 2019 ; Vol. 3, No. 1. pp. 35-40.
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abstract = "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.",
author = "{KAGRA collaboration} and T. Akutsu and M. Ando and K. Arai and Y. Arai and S. Araki and A. Araya and N. Aritomi and H. Asada and Y. Aso and S. Atsuta and K. Awai and S. Bae and L. Baiotti and Barton, {M. A.} and K. Cannon and E. Capocasa and Chen, {C. S.} and Chiu, {T. W.} and K. Cho and Chu, {Y. K.} and K. Craig and W. Creus and K. Doi and K. Eda and Y. Enomoto and R. Flaminio and Y. Fujii and Fujimoto, {M. K.} and M. Fukunaga and Mitsuhiro Fukushima and T. Furuhata and S. Haino and K. Hasegawa and K. Hashino and K. Hayama and S. Hirobayashi and E. Hirose and Hsieh, {B. H.} and Huang, {C. Z.} and B. Ikenoue and Y. Inoue and K. Ioka and Y. Itoh and K. Izumi and T. Kaji and T. Kajita and M. Kakizaki and M. Kamiizumi and S. Kanbara and Motoyuki Saijo",
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AU - Ando, M.

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AU - Arai, Y.

AU - Araki, S.

AU - Araya, A.

AU - Aritomi, N.

AU - Asada, H.

AU - Aso, Y.

AU - Atsuta, S.

AU - Awai, K.

AU - Bae, S.

AU - Baiotti, L.

AU - Barton, M. A.

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AU - Flaminio, R.

AU - Fujii, Y.

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AU - Fukunaga, M.

AU - Fukushima, Mitsuhiro

AU - Furuhata, T.

AU - Haino, S.

AU - Hasegawa, K.

AU - Hashino, K.

AU - Hayama, K.

AU - Hirobayashi, S.

AU - Hirose, E.

AU - Hsieh, B. H.

AU - Huang, C. Z.

AU - Ikenoue, B.

AU - Inoue, Y.

AU - Ioka, K.

AU - Itoh, Y.

AU - Izumi, K.

AU - Kaji, T.

AU - Kajita, T.

AU - Kakizaki, M.

AU - Kamiizumi, M.

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AU - Saijo, Motoyuki

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