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arXiv · 1405.1922

Fully coherent follow-up of continuous gravitational-wave candidates: an application to Einstein@Home results

Miroslav Shaltev·Paola Leaci·Maria Alessandra Papa·Reinhard Prix
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Abstract

We characterize and present the details of the follow-up method used on the most significant outliers of the Hough Einstein@Home all-sky search for continuous gravitational waves arXiv:1207.7176. This follow-up method is based on the two-stage approach introduced in arXiv:1303.2471, consisting of a semicoherent refinement followed by a fully coherent zoom. We quantify the efficiency of the follow-up pipeline using simulated signals in Gaussian noise. This pipeline does not search beyond first-order frequency spindown, and therefore we also evaluate its robustness against second-order spindown. We present the details of the Hough Einstein@Home follow-up (arXiv:1207.7176) on three hardware-injected signals and on the 8 most significant outliers of unknown origin.

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Miroslav Shaltev, Paola Leaci, Maria Alessandra Papa, Reinhard Prix. 2014-05-08. Fully coherent follow-up of continuous gravitational-wave candidates: an application to Einstein@Home results. https://doi.org/10.1103/physrevd.89.124030

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