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Stochastic Background Search Correlating ALLEGRO with LIGO Engineering Data

John T Whelan·Edward Daw·Ik Siong Heng·Martin P McHugh·Albert Lazzarini
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Abstract

We describe the role of correlation measurements between the LIGO interferometer in Livingston, LA, and the ALLEGRO resonant bar detector in Baton Rouge, LA, in searches for a stochastic background of gravitational waves. Such measurements provide a valuable complement to correlations between interferometers at the two LIGO sites, since they are sensitive in a different, higher, frequency band. Additionally, the variable orientation of the ALLEGRO detector provides a means to distinguish gravitational wave correlations from correlated environmental noise. We describe the analysis underway to set a limit on the strength of a stochastic background at frequencies near 900 Hz using ALLEGRO data and data from LIGO's E7 Engineering Run.

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John T Whelan, Edward Daw, Ik Siong Heng, Martin P McHugh, Albert Lazzarini. 2003-08-14. Stochastic Background Search Correlating ALLEGRO with LIGO Engineering Data. https://doi.org/10.1088/0264-9381%2F20%2F17%2F312

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