Paper published by P. B. Covas and Alicia M. Sintes at Physical Review D 99, 124019.
New method to search for continuous gravitational waves from unknown neutron stars in binary systems
Nonaxisymmetric, fast-spinning unknown neutron stars in binary systems may emit continuous gravitational waves (nearly monochromatic long-duration signals) which can be detected by ground-based detectors like LIGO and Virgo. In this paper we present a new pipeline, called BinarySkyHough, that can carry out all-sky searches for neutron stars in binary systems by exploiting the usage of graphics processing units. We give a detailed explanation of this new pipeline, and we present simulations which allow us to estimate the sensitivity of the new pipeline, which is approximately twice as sensitive as the best active pipeline with a comparable computational cost.
Image. The points show the projected semimajor axis amplitude and orbital period of known pulsars in binary systems. The four lines show different combinations of assumed companion mass and inclination angle for a 1.4 M neutron star, following Eq. (16).
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