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Observational Limit on Gravitational Waves from Binary Neutron Stars in the Galaxy

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arxiv gr-qc/9903108 v2 pith:2YDYJHJI submitted 1999-03-31 gr-qc astro-ph

B. Allen , J.K. Blackburn , P.R. Brady , J.D.E. Creighton , T. Creighton , S. Droz , A.D. Gillespie , S.A. Hughes
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S. Kawamura T.T. Lyons J.E. Mason B.J. Owen F.J. Raab M.W. Regehr B.S. Sathyaprakash R.L. Savage Jr. S. Whitcomb A.G. Wiseman
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classification gr-qcastro-ph
keywords binarygalaxyneutrondatafilteringgravitational-waveinterferometricligo
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Using optimal matched filtering, we search 25 hours of data from the LIGO 40-meter prototype laser interferometric gravitational-wave detector for gravitational-wave chirps emitted by coalescing binary systems within our Galaxy. This is the first test of this filtering technique on real interferometric data. An upper limit on the rate R of neutron star binary inspirals in our Galaxy is obtained: with 90% confidence, R< 0.5/hour. Similar experiments with LIGO interferometers will provide constraints on the population of tight binary neutron star systems in the Universe.

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