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Results of an all-sky high-frequency Einstein@Home search for continuous gravitational waves in LIGO’s fifth science run

Avneet Singh1,2,3,*, Maria Alessandra Papa1,2,4,†, Heinz-Bernd Eggenstein2,3, Sylvia Zhu1,2, Holger Pletsch2,3, Bruce Allen2,4,3, Oliver Bock2,3, Bernd Maschenchalk2,3, Reinhard Prix2,3 et al.

Xavier Siemens4

  • 1Max-Planck-Institut für Gravitationsphysik, am Mühlenberg 1, 14476 Potsdam-Golm, Germany
  • 2Max-Planck-Institut für Gravitationsphysik, Callinstraße 38, 30167 Hannover, Germany
  • 3Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
  • 4University of Wisconsin-Milwaukee, Milwaukee, Wisconsin 53201, USA

  • *avneet.singh@aei.mpg.de
  • †maria.alessandra.papa@aei.mpg.de
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Phys. Rev. D 94, 064061 – Published 26 September, 2016

DOI: https://doi.org/10.1103/PhysRevD.94.064061

Abstract

We present results of a high-frequency all-sky search for continuous gravitational waves from isolated compact objects in LIGO’s fifth science run (S5) data, using the computing power of the Einstein@Home volunteer computing project. This is the only dedicated continuous gravitational wave search that probes this high-frequency range on S5 data. We find no significant candidate signal, so we set 90% confidence level upper limits on continuous gravitational wave strain amplitudes. At the lower end of the search frequency range, around 1250 Hz, the most constraining upper limit is 5.0×10−24, while at the higher end, around 1500 Hz, it is 6.2×10−24. Based on these upper limits, and assuming a fiducial value of the principal moment of inertia of 1038  kg m2, we can exclude objects with ellipticities higher than roughly 2.8×10−7 within 100 pc of Earth with rotation periods between 1.3 and 1.6 milliseconds.

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Phys. Rev. D 94, 064061– Published 26 September, 2016
  • Received 6 July 2016
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This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

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