[0805.2412] Detection Confidence Tests for Burst and Inspiral Candidate Events

Authors: R. Gouaty, for the LIGO Scientific Collaboration

Date: 15 May 2008

Abstract: The LIGO Scientific Collaboration (LSC) is developing and running analysis pipelines to search for gravitational-wave transients emitted by astrophysical events such as compact binary mergers or core-collapsed supernovae. However, because of the non-Gaussian, non-stationary nature of the noise exhibited by the LIGO detectors, residual false alarms might be found at the end of the pipelines. A critical aspect of the search is then to assess our confidence for gravitational waves and to distinguish them from those false alarms. Both the ''Compact Binary Coalescence'' and the ''Burst'' working groups have been developing a detection checklist for the validation of candidate-events, consisting of a series of tests including data quality checks, analysis of the candidate appearance, parameter consistency studies, coherent analysis, which aim to corroborate a detection or to eliminate a false alarm. In this paper, the general methodology used for candidate validation is presented. The method is illustrated with an example of simulated gravitational wave signal and a false alarm.

abs pdf

May 20, 2008

0805.2412 (/preprints)
2008-05-20, 09:00 [edit]

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