Stable Operation of a 300-m Laser Interferometer with Sufficient Sensitivity to Detect Gravitational-Wave Events within Our Galaxy

Masaki Ando et al. (TAMA Collaboration)
Phys. Rev. Lett. 86, 3950 – Published 30 April 2001
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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 h5×1021/Hz, a signal-to-noise ratio of 30 is expected for gravitational waves generated by a coalescence of 1.4M1.4M 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.

  • Received 23 January 2001

DOI:https://doi.org/10.1103/PhysRevLett.86.3950

©2001 American Physical Society

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Vol. 86, Iss. 18 — 30 April 2001

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