A targeted spectral interpolation algorithm for the detection of continuous gravitational waves

dc.contributor.authorDavies, Gareth S.
dc.contributor.authorPitkin, Matthew
dc.contributor.authorWoan, Graham
dc.date.accessioned2017-03-02T11:34:38Z
dc.date.available2017-03-02T11:34:38Z
dc.date.issued2016-03
dc.description.abstractWe present an improved method of targeting continuous gravitationalwave signals in data from the LIGO and Virgo detectors with a higher efficiency than the time-domain Bayesian pipeline used in many previous searches. Our spectral interpolation algorithm, SplInter, removes the intrinsic phase evolution of the signal from source rotation and relative detector motion. We do this in the frequency domain and generate a time series containing only variations in the signal due to the antenna pattern. Although less flexible than the classic heterodyne approach, SplInter allows for rapid analysis of putative signals from isolated (and some binary) pulsars, and efficient follow-up searches for candidate signals generated by other search methods. The computational saving over the heterodyne approach can be many orders of magnitude, up to a factor of around fifty thousand in some cases, with a minimal impact on overall sensitivity for most targets.en_UK
dc.identifier.citationDavies GS, Pitkin M, Woan G. (2017) A targeted spectral interpolation algorithm for the detection of continuous gravitational waves, Classical and Quantum Gravity, Vol. 34, Issue 1, January 2017, Article number 015010en_UK
dc.identifier.issn0264-9381
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11539
dc.identifier.urihttp://dx.doi.org/10.1088/1361-6382/34/1/015010
dc.publisherInstitute of Physicsen_UK
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectgravitational waves
dc.subjectcontinuous gravitational waves
dc.subjectneutron stars
dc.subjectpulsars
dc.titleA targeted spectral interpolation algorithm for the detection of continuous gravitational wavesen_UK
dc.typeArticleen_UK

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