Stochastic background search correlating ALLEGRO with LIGO engineering data

Whelan, John T.; Daw, Edward J.; Heng, Ik Siong; McHugh, Martin; Lazzarini, Albert

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Stochastic background search correlating ALLEGRO with LIGO engineering data

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Whelan, John T.
Astrophysical Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Heng, Ik Siong
AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Whelan, J. T., Daw, E. J., Heng, I. S., McHugh, M., & Lazzarini, A. (2003). Stochastic background search correlating ALLEGRO with LIGO engineering data. Classical and Quantum Gravity, 20, S689-S695.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-5352-F

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.