• Open Access

Results from the First All-Sky Search for Continuous Gravitational Waves from Small-Ellipticity Sources

Vladimir Dergachev and Maria Alessandra Papa
Phys. Rev. Lett. 125, 171101 – Published 22 October 2020
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Abstract

We present the results of an all-sky search for continuous gravitational-wave signals with frequencies in the 500–1700 Hz range targeting neutron stars with ellipticity of 108. The search is done on LIGO O2 data using the Falcon analysis pipeline. The results presented here double the sensitivity over any other result on the same data [B. P. Abbott et al. (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. D 100, 024004 (2019), C. Palomba et al., Phys. Rev. Lett. 123, 171101 (2019)]. The search is capable of detecting low-ellipticity sources up to 170 pc. We establish strict upper limits which hold for worst-case signal parameters. We list outliers uncovered by the search, including several which we cannot associate with any known instrumental cause.

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  • Received 17 April 2020
  • Revised 7 July 2020
  • Accepted 17 September 2020

DOI:https://doi.org/10.1103/PhysRevLett.125.171101

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Vladimir Dergachev1,2,* and Maria Alessandra Papa1,2,3,†

  • 1Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Callinstrasse 38, 30167 Hannover, Germany
  • 2Leibniz Universität Hannover, D-30167 Hannover, Germany
  • 3University of Wisconsin Milwaukee, 3135 North Maryland Avenue, Milwaukee, Wisconsin 53211, USA

  • *vladimir.dergachev@aei.mpg.de
  • maria.alessandra.papa@aei.mpg.de

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Vol. 125, Iss. 17 — 23 October 2020

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