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Bayesian detection of unmodeled bursts of gravitational waves

Searle, Antony C., Sutton, Patrick J. and Tinto, Massimo 2009. Bayesian detection of unmodeled bursts of gravitational waves. Classical and Quantum Gravity 26 (15) , 155017. 10.1088/0264-9381/26/15/155017

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The data analysis problem of coherently searching for unmodeled gravitational-wave bursts in the data generated by a global network of gravitational-wave observatories has been at the center of research for almost two decades. As data from these detectors are starting to be analyzed, a renewed interest in this problem has been sparked. A Bayesian approach to the problem of coherently searching for gravitational wave bursts with a network of ground-based interferometers is presented here. We demonstrate how to systematically incorporate prior information on the burst signal and its source into the analysis. This information may range from the very minimal, such as best-guess durations, bandwidths or polarization content, to complete prior knowledge of the signal waveforms and the distribution of sources through spacetime. We show that this comprehensive Bayesian formulation contains several previously proposed detection statistics as special limiting cases, and demonstrate that it outperforms them.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Uncontrolled Keywords: Instrumentation and measurement; Gravitation and cosmology; Astrophysics and astroparticles
Publisher: Institute of Physics
ISSN: 0264-9381
Last Modified: 18 Oct 2018 01:36

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