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Stochastic background search correlating ALLEGRO with LIGO engineering data

MPS-Authors
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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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(Preprint), 236KB

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Citation

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: http://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.