The AURIGA-LIGO joint burst search

L. Cadonati, LIGO, Massachusetts Institute of Technology
L. Baggio, Università di Trento
I. S. Heng, University of Glasgow
W. Johnson, Louisiana State University
A. Mion, Università di Trento
A. Ortolan, Laboratori Nazionali di Legnaro
S. Poggi, Università di Trento
G. A. Prodi, Università di Trento
F. Salemi, University of Ferrara
P. Sutton, California Institute of Technology
G. Vedovato, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova
M. Zanolin, LIGO, Massachusetts Institute of Technology
J. P. Zendri, Istituto Nazionale Di Fisica Nucleare, Sezione di Padova


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.