Searching for a stochastic background of gravitational waves with the laser interferometer gravitational-wave observatory

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Abbott, B. and Cantley, C.A., LIGO Scientific Collaboration (2007) Searching for a stochastic background of gravitational waves with the laser interferometer gravitational-wave observatory. Astrophysical Journal, 659 (2 I). pp. 918-930. ISSN 1538-4357 (https://doi.org/10.1086/511329)

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Abstract

The Laser Interferometer Gravitational-Wave Observatory (LIGO) has performed the fourth science run, S4, with significantly improved interferometer sensitivities with respect to previous runs. Using data acquired during this science run, we place a limit on the amplitude of a stochastic background of gravitational waves. For a frequency independent spectrum, the new Bayesian 90% upper limit is ΩGW × [H0/(72 km s−1 Mpc−1)]2 < 6.5 × 10-5. This is currently the most sensitive result in the frequency range 51-150 Hz, with a factor of 13 improvement over the previous LIGO result. We discuss the complementarity of the new result with other constraints on a stochastic background of gravitational waves, and we investigate implications of the new result for different models of this background.

  • Item type:Article
    ID code:67141
    Dates:
    Date
    Event
    20 April 2007
    Published
    Subjects:Science > Physics
    Science > Astronomy
    Department:Faculty of Engineering
    Depositing user: Pure Administrator
    Date deposited:05 Mar 2019 11:59
    Last modified:22 Dec 2024 01:23
    URI:https://strathprints.strath.ac.uk/id/eprint/67141
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