Albert Lazzarini and L Samuel Finn 2002 Class. Quantum Grav. 19 1485 doi:10.1088/0264-9381/19/7/334
Albert Lazzarini1 and L Samuel Finn2
Show affiliationsDetecting a stationary, stochastic gravitational wave signal is complicated by the impossibility of observing detector noise independently of the signal. Here we describe a method of identifying this source of systematic error by varying the orientation of one of the detectors, leading to separate and independent modulations of the signal and noise contribution to the cross-correlation. The method can be applied to measurements of a stochastic gravitational wave background by the ALLEGRO/LIGO Livingston Observatory detector pair. We explore—in the context of this detector pair—how this new measurement technique is insensitive to a cross-correlated detector noise component that can confound a conventional measurement.
Issue 7 (7 April 2002)
Received 27 September 2001, in final form 4 December 2001
Published 11 March 2002
Albert Lazzarini and L Samuel Finn 2002 Class. Quantum Grav. 19 1485
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