Present status of large-scale cryogenic gravitational wave telescope

T. Uchiyama*, K. Kuroda, M. Ohashi, S. Miyoki, H. Ishitsuka, K. Yamamoto, H. Hayakawa, K. Kasahara, M. K. Fujimoto, S. Kawamura, R. Takahashi, T. Yamazaki, K. Arai, D. Tatsumi, A. Ueda, Mitsuhiro Fukushima, S. Sato, Y. Tsunesada, Zong Hong Zhu, T. ShintomiA. Yamamoto, T. Suzuki, Y. Saito, T. Haruyama, N. Sato, Y. Higashi, T. Tomaru, K. Tsubono, M. Ando, K. Numata, Y. Aso, K. I. Ueda, H. Yoneda, K. Nakagawa, M. Musha, N. Mio, S. Moriwaki, K. Somiya, A. Araya, A. Takamori, N. Kanda, S. Telada, H. Tagoshi, T. Nakamura, M. Sasaki, T. Tanaka, K. I. Ohara, H. Takahashi, S. Nagano, O. Miyakawa, M. E. Tobar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)


The large-scale cryogenic gravitational wave telescope (LCGT) is the future project of the Japanese gravitational wave group. Two sets of 3 km arm length laser interferometric gravitational wave detectors will be built in a tunnel of Kamioka mine in Japan. LCGT will detect chirp waves from binary neutron star coalescence at 240 Mpc away with a S/N of 10. The expected number of detectable events in a year is two or three. To achieve the required sensitivity, several advanced techniques will be employed such as a low-frequency vibration-isolation system, a suspension point interferometer, cryogenic mirrors, a resonant side band extraction method, a high-power laser system and so on. We hope that the beginning of the project will be in 2005 and the observations will start in 2009.

Original languageEnglish
JournalClassical and Quantum Gravity
Issue number5
Publication statusPublished - 2004 Mar 7
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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