Dwarf nova-type cataclysmic variable stars are significant radio emitters
MetadataShow full item record
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.
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.
Showing items related by title, author, creator and subject.
Miller-Jones, James; Sivakoff, G.; Altamirano, D.; Coriat, M.; Corbel, S.; Dhawan, V.; Krimm, H.; Remillard, R.; Rupen, M.; Russell, D.; Fender, R.; Heinz, S.; Koerding, E.; Maitra, D.; Markoff, S.; Migliari, S.; Sarazin, C.; Tudose, V. (2012)We present an intensive radio and X-ray monitoring campaign on the 2009 outburst of the Galactic black hole candidate X-ray binary H1743-322. With the high angular resolution of the Very Long Baseline Array, we resolve ...
The black hole candidate XTE J1752-223 towards and in quiescence: optical and simultaneous X-ray-radio observationsRatti, E.; Jonker, P.; Miller-Jones, James; Torres, M.; Homan, J.; Markoff, S.; Tomsick, J.; Kaaret, P.; Wijnands, R.; Gallo, E.; Ozel, F.; Steeghs, D.; Fender, R. (2012)We present optical, X-ray and radio observations of the black hole transient (BHT) XTE J1752-223 towards and in quiescence. Optical photometry shows that the quiescent magnitude of XTE J1752-223 is fainter than 24.4 mag ...
The 2015 decay of the black hole X-ray binary V404 Cygni: Robust disk-jet coupling and a sharp transition into quiescencePlotkin, Richard; Miller-Jones, James; Gallo, E.; Jonker, P.; Homan, J.; Tomsick, J.; Kaaret, P.; Russell, D.; Heinz, S.; Hodges-Kluck, E.; Markoff, S.; Sivakoff, G.; Altamirano, D.; Neilsen, J. (2017)We present simultaneous X-ray and radio observations of the black hole X-ray binary V404 Cygni at the end of its 2015 outburst. From 2015 July 11-August 5, we monitored V404 Cygni with Chandra, Swift, and NuSTAR in the ...