Directed search for continuous gravitational waves from the Galactic center

Aasi, J. and Lockerbie, N. A. and Tokmakov, K. V., LIGO Scientific Collaboration, Virgo Collaboration (2013) Directed search for continuous gravitational waves from the Galactic center. Physical Review D, 88 (10). 102002. ISSN 1550-2368 (https://doi.org/10.1103/PhysRevD.88.102002)

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Abstract

We present the results of a directed search for continuous gravitational waves from unknown, isolated neutron stars in the Galactic center region, performed on two years of data from LIGO's fifth science run from two LIGO detectors. The search uses a semicoherent approach, analyzing coherently 630 segments, each spanning 11.5 hours, and then incoherently combining the results of the single segments. It covers gravitational wave frequencies in a range from 78 to 496 Hz and a frequency-dependent range of first-order spindown values down to -7.86 x 10(-8) Hz/s at the highest frequency. No gravitational waves were detected. The 90% confidence upper limits on the gravitational wave amplitude of sources at the Galactic center are similar to 3.35 x 10(-25) for frequencies near 150 Hz. These upper limits are the most constraining to date for a large-parameter-space search for continuous gravitational wave signals.

ORCID iDs

Aasi, J., 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:50721
    Dates:
    Date
    Event
    18 November 2013
    Published
    Notes:This article includes numerous authors. Please consult manuscript for full attribution details. J. Aasi et al. (LIGO Scientific Collaboration and Virgo Collaboration) Phys. Rev. D 88, 102002. © 2013 American Physical Society
    Subjects:Science > Astronomy
    Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:09 Dec 2014 16:19
    Last modified:11 Nov 2024 10:53
    URI:https://strathprints.strath.ac.uk/id/eprint/50721
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