Crosscorrelation measurement of stochastic gravitational waves with two resonant gravitational wave detectors

Details Crosscorrelation measurement of stochastic gravitational waves with two resonant gravitational wave detectors Crosscorrelation measurement of stochastic gravitational waves with two resonant gravitational wave detectors

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...351..811a&link_type=abstract

Astronomy and Astrophysics, v.351, p.811-814 (1999)

Astronomy and Astrophysics

Astrophysics

27

Gravitation, Methods: Data Analysis, Cosmology: Early Universe

Scientific paper

We report on the crosscorrelation analysis of the data recorded by the gravitational wave (g.w.) resonant detectors Explorer and Nautilus, performed to obtain information on the g.w. stochastic background. We found that the quantity Omega gw(f), that measures the closure of the Universe, is Omega gw(f) <= 6 * 10, at 907.20 +/- 0.05 Hz, where the factor 10 is obtained by the crosscorrelation analysis and the factor 6 takes into account the distance ( =~ 600 km) between Explorer and Nautilus. This is the first experiment where the data of two g.w. cryogenic resonant detectors are crosscorrelated.

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