ALGORITHMS FOR SEARCHING FOR GAMMA-GRAVITY CORRELATIONS

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Abstract
We report the development of algorithms for searching for possible correlations between the data from gravitational-wave and gamma-ray detectors due to common astrophysical sources. We account for the time delay between the two signals and also use information on the detailed time structure of individual gamma-ray bursts (GRBs). Three possible algorithms of data processing are suggested with different degrees of noise smoothing. The algorithms have been tested using real Burst and Transient Search Experiment (BATSE) GRB data and records of the cryogenic resonant bar detector Explorer. The expected filtering properties of the algorithms are confirmed by the tests. The use of more extended data records is required to detect any correlations or to establish upper limits. A possible generalization for non-Gaussian noises is discussed.