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Ando M, Arai K, Takahashi R, Heinzel G, Kawamura S, Tatsumi D, Kanda N, Tagoshi H, Araya A, Asada H, Aso Y, Barton MA, Fujimoto MK, Fukushima M, Futamase T, Hayama K, Horikoshi G, Ishizuka H, Kamikubota N, Kawabe K, Kawashima N, Kobayashi Y, Kojima Y, Kondo K, Kozai Y, Kuroda K, Matsuda N, Mio N, Miura K, Miyakawa O, Miyama SM, Miyoki S, Moriwaki S, Musha M, Nagano S, Nakagawa K, Nakamura T, Nakao K, Numata K, Ogawa Y, Ohashi M, Ohishi N, Okutomi S, Oohara K, Otsuka S, Saito Y, Sasaki M, Sato S, Sekiya A, Shibata M, Somiya K, Suzuki T, Takamori A, Tanaka T, Taniguchi S, Telada S, Tochikubo K, Tomaru T, Tsubono K, Tsuda N, Uchiyama T, Ueda A, Ueda K, Waseda K, Watanabe Y, Yakura H, Yamamoto K, Yamazaki T. Stable operation of a 300-m laser interferometer with sufficient sensitivity to detect gravitational-wave events within our galaxy. Phys Rev Lett 2001; 86:3950-3954. [PMID: 11328068 DOI: 10.1103/physrevlett.86.3950] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2001] [Indexed: 05/23/2023]
Abstract
TAMA300, an interferometric gravitational-wave detector with 300-m baseline length, has been developed and operated with sufficient sensitivity to detect gravitational-wave events within our galaxy and sufficient stability for observations; the interferometer was operated for over 10 hours stably and continuously. With a strain-equivalent noise level of h approximately 5x10(-21)/sqrt[Hz], a signal-to-noise ratio of 30 is expected for gravitational waves generated by a coalescence of 1.4M-1.4M binary neutron stars at 10 kpc distance. We evaluated the stability of the detector sensitivity with a 2-week data-taking run, collecting 160 hours of data to be analyzed in the search for gravitational waves.
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Affiliation(s)
- M Ando
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 Japan.
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