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Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data

Citation

Abbott, BP and Abbott, R and Siellez, K and Zweizig, J, LIGO Scientific Collaboration and Virgo Collaboration, Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data, Physical Review D: covering particles, fields, gravitation, and cosmology, 94, (4) Article 042002. ISSN 2470-0010 (2016) [Refereed Article]


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Copyright Statement

© 2016 American Physical Society. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License (https://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. Must link to published article.

DOI: doi:10.1103/PhysRevD.94.042002

Abstract

We report on a comprehensive all-sky search for periodic gravitational waves in the frequency band 100–1500 Hz and with a frequency time derivative in the range of [−1.18,+1.00] x 10−8 Hz/s. Such a signal could be produced by a nearby spinning and slightly nonaxisymmetric isolated neutron star in our galaxy. This search uses the data from the initial LIGO sixth science run and covers a larger parameter space with respect to any past search. A Loosely Coherent detection pipeline was applied to follow up weak outliers in both Gaussian (95% recovery rate) and non-Gaussian (75% recovery rate) bands. No gravitational wave signals were observed, and upper limits were placed on their strength. Our smallest upper limit on worst-case (linearly polarized) strain amplitude h0 is 9.7 x 10−25 near 169 Hz, while at the high end of our frequency range we achieve a worst-case upper limit of 5.5 x 10−24. Both cases refer to all sky locations and entire range of frequency derivative values.

Item Details

Item Type:Refereed Article
Keywords:all-sky search, gravitational waves, LIGO
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:General relativity and gravitational waves
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Siellez, K (Dr Karelle Siellez)
ID Code:152162
Year Published:2016
Web of Science® Times Cited:27
Deposited By:Physics
Deposited On:2022-08-12
Last Modified:2022-09-26
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