The AURIGA-LIGO joint burst search
Abstract
Over the course of a two-week period, starting on Christmas Eve 2003, the recently upgraded AURIGA and the LIGO observatory were simultaneously acquiring data. This first coincidence run between the two projects triggered a new collaborative effort in the search for gravitational wave bursts. This paper introduces the goals of the AURIGA-LIGO joint analysis and the methods that have been formulated to address the challenges of a coincidence between detectors with different spectral sensitivities, bandwidths and antenna patterns. Two approaches are presented, both based on the exchange of event triggers between AURIGA and LIGO: a set of directional coincidence searches, which exploit measured amplitude information, and a cross-correlation search in the LIGO interferometers around the time of the AURIGA events, with minimal assumptions on the signal characteristics. © 2005 IOP Publishing Ltd.