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    The High Time and Frequency Resolution Capabilities of the Murchison Widefield Array

    Access Status
    Open access via publisher
    Authors
    Tremblay, S.
    Ord, Stephen
    Bhat, N.
    Tingay, Steven
    Crosse, B.
    Pallot, D.
    Oronsaye, S.
    Bernardi, G.
    Bowman, J.
    Briggs, F.
    Cappallo, R.
    Corey, B.
    Deshpande, A.
    Emrich, D.
    Goeke, R.
    Greenhill, L.
    Hazelton, B.
    Johnston-Hollitt, M.
    Kaplan, D.
    Kasper, J.
    Kratzenberg, E.
    Lonsdale, C.
    Lynch, Mervyn
    McWhirter, S.
    Mitchell, D.
    Morales, M.
    Morgan, E.
    Oberoi, D.
    Prabu, T.
    Rogers, A.
    Roshi, A.
    Shankar, N.
    Srivani, K.
    Subrahmanyan, R.
    Waterson, M.
    Wayth, Randall
    Webster, R.
    Whitney, A.
    Williams, A.
    Williams, C.
    Date
    2015
    Type
    Journal Article
    
    Metadata
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    Citation
    Tremblay, S. and Ord, S. and Bhat, N. and Tingay, S. and Crosse, B. and Pallot, D. and Oronsaye, S. et al. 2015. The High Time and Frequency Resolution Capabilities of the Murchison Widefield Array. Publications of the Astronomical Society of Australia. 32: Article ID e005.
    Source Title
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA
    DOI
    10.1017/pasa.2015.6
    ISSN
    1323-3580
    School
    Curtin Institute of Radio Astronomy (Engineering)
    URI
    http://hdl.handle.net/20.500.11937/29784
    Collection
    • Curtin Research Publications
    Abstract

    The science cases for incorporating high time resolution capabilities into modern radio telescopes are as numerous as they are compelling. Science targets range from exotic sources such as pulsars, to our Sun, to recently detected possible extragalactic bursts of radio emission, the so-called fast radio bursts (FRBs). Originally conceived purely as an imaging telescope, the initial design of the Murchison Widefield Array (MWA) did not include the ability to access high time and frequency resolution voltage data. However, the flexibility of the MWA’s software correlator allowed an off-the-shelf solution for adding this capability. This paper describes the system that records the 100 μs and 10 kHz resolution voltage data from the MWA. Example science applications, where this capability is critical, are presented, as well as accompanying commissioning results from this mode to demonstrate verification.

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