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    Dwarf nova-type cataclysmic variable stars are significant radio emitters

    250372.pdf (1.312Mb)
    Access Status
    Open access
    Authors
    Coppejans, D.
    Kording, E.
    Miller-Jones, James
    Rupen, M.
    Sivakoff, G.
    Knigge, C.
    Groot, P.
    Woudt, P.
    Waagen, E.
    Templeton, M.
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Coppejans, D. and Kording, E. and Miller-Jones, J. and Rupen, M. and Sivakoff, G. and Knigge, C. and Groot, P. et al. 2016. Dwarf nova-type cataclysmic variable stars are significant radio emitters. Monthly Notices of the Royal Astronomical Society. 463 (2): pp. 2229-2241.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1093/mnras/stw2133
    ISSN
    0035-8711
    School
    Department of Physics and Astronomy
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/FT140101082
    Remarks

    This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/50765
    Collection
    • Curtin Research Publications
    Abstract

    We present 8–12 GHz radio light curves of five dwarf nova (DN) type cataclysmic variable stars (CVs) in outburst (RX And, U Gem, and Z Cam), or superoutburst (SU UMa and YZ Cnc), increasing the number of radio-detected DN by a factor of 2. The observed radio emission was variable on time-scales of minutes to days, and we argue that it is likely to be synchrotron emission. This sample shows no correlation between the radio luminosity and optical luminosity, orbital period, CV class, or outburst type; however, higher cadence observations are necessary to test this, as the measured luminosity is dependent on the timing of the observations in these variable objects. The observations show that the previously detected radio emission from SS Cyg is not unique in type, luminosity (in the plateau phase of the outburst), or variability time-scales. Our results prove that DN, as a class, are radio emitters in outburst.

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