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

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Abbott, B. P. and Jawahar, S. and Lockerbie, N.A. and Tokmakov, K.V., LIGO Scientific Collaboration and Virgo Collaboration (2016) Comprehensive all-sky search for periodic gravitational waves in the sixth science run LIGO data. Physical Review D, 94 (4). 042002. ISSN 1550-2368 (https://doi.org/10.1103/PhysRevD.94.042002)

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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]×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 9.7×10-25 near 169 Hz, while at the high end of our frequency range we achieve a worst-case upper limit of 5.5×10-24. Both cases refer to all sky locations and entire range of frequency derivative values.

ORCID iDs

Abbott, B. P., Jawahar, S. ORCID logoORCID: https://orcid.org/0000-0002-4945-691X, Lockerbie, N.A. ORCID logoORCID: https://orcid.org/0000-0002-1678-3260 and Tokmakov, K.V. ORCID logoORCID: https://orcid.org/0000-0002-2808-6593;
  • Item type:Article
    ID code:60946
    Dates:
    Date
    Event
    15 August 2016
    Published
    14 May 2016
    Accepted
    Notes:Please consult manuscript for full attribution details.
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:14 Jun 2017 15:14
    Last modified:22 Nov 2024 01:12
    URI:https://strathprints.strath.ac.uk/id/eprint/60946
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