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arXiv · 1805.03761

All-sky radiometer for narrowband gravitational waves using folded data

Boris Goncharov·Eric Thrane
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Abstract

We demonstrate an all-sky search for persistent, narrowband gravitational waves using mock data. The search employs radiometry to sidereal-folded data in order to uncover persistent sources of gravitational waves with minimal assumptions about the signal model. The method complements continuous-wave searches, which are finely tuned to search for gravitational waves from rotating neutron stars while providing a means of detecting more exotic sources that might be missed by dedicated continuous-wave techniques. We apply the algorithm to simulated Gaussian noise at the level of LIGO design sensitivity. We project the strain amplitude sensitivity for the algorithm for a LIGO network in the first observing run to be $h_0 \approx 1.2 \times 10^{-24}$ ($1\%$ false alarm probability, $10\%$ false dismissal probability). We include treatment of instrumental lines and detector artifacts using time-shifted LIGO data from the first observing run.

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Boris Goncharov, Eric Thrane. 2019-01-30. All-sky radiometer for narrowband gravitational waves using folded data. https://doi.org/10.1103/physrevd.98.064018

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