An evidence based time-frequency search method for gravitational waves from pulsar glitches

Clark, J., Heng, I.S. , Pitkin, M. and Woan, G. (2008) An evidence based time-frequency search method for gravitational waves from pulsar glitches. Journal of Physics: Conference Series, 122(1), 012035. (doi: 10.1088/1742-6596/122/1/012035)

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We review and expand on a Bayesian model selection technique for the detection of gravitational waves from neutron star ring-downs associated with pulsar glitches. The algorithm works with power spectral densities constructed from overlapping time segments of gravitational wave data. Consequently, the original approach was at risk of falsely identifying multiple signals where only one signal was present in the data. We introduce an extension to the algorithm which uses posterior information on the frequency content of detected signals to cluster events together. The requirement that we have just one detection per signal is now met with the additional bonus that the belief in the presence of a signal is boosted by incorporating information from adjacent time segments.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Heng, Professor Ik Siong and Woan, Professor Graham and Pitkin, Dr Matthew
Authors: Clark, J., Heng, I.S., Pitkin, M., and Woan, G.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Journal of Physics: Conference Series

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
459312Investigations in Gravitational Radiation.Sheila RowanScience & Technologies Facilities Council (STFC)ST/I001085/1Physics and Astronomy