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    Searching for gravitational wave memory bursts with the Parkes Pulsar Timing Array

    Access Status
    Fulltext not available
    Authors
    Wang, J.
    Hobbs, G.
    Coles, W.
    Shannon, Ryan
    Zhu, X.
    Madison, D.
    Kerr, M.
    Ravi, V.
    Keith, M.
    Manchester, R.
    Levin, Y.
    Bailes, M.
    Bhat, N.
    Burke-Spolaor, S.
    Dai, S.
    Oslowski, S.
    van Straten, W.
    Toomey, L.
    Wang, N.
    Wen, L.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Wang, J. and Hobbs, G. and Coles, W. and Shannon, R. and Zhu, X. and Madison, D. and Kerr, M. et al. 2015. Searching for gravitational wave memory bursts with the Parkes Pulsar Timing Array. Monthly Notices of the Royal Astronomical Society. 446 (2): pp. 1657-1671.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1093/mnras/stu2137
    ISSN
    0035-8711
    School
    Curtin Institute of Radio Astronomy (Physics)
    URI
    http://hdl.handle.net/20.500.11937/25266
    Collection
    • Curtin Research Publications
    Abstract

    Anisotropic bursts of gravitational radiation produced by events such as supermassive black hole mergers leave permanent imprints on space. Such gravitational wave ‘memory’ (GWM) signals are, in principle, detectable through pulsar timing as sudden changes in the apparent pulse frequency of a pulsar. If an array of pulsars is monitored as a GWM signal passes over the Earth, the pulsars would simultaneously appear to change pulse frequency by an amount that varies with their sky position in a quadrupolar fashion. Here, we describe a search algorithm for such events and apply the algorithm to approximately six years of data from the Parkes Pulsar Timing Array. We find no GWM events and set an upper bound on the rate for events which could have been detected. We show, using simple models of black hole coalescence rates, that this non-detection is not unexpected.

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