A radio-pulsing white dwarf binary star

T. R. Marsh (), B. T. Gänsicke, S. Hümmerich, F.-J. Hambsch, K. Bernhard, C. Lloyd, E. Breedt, E. R. Stanway, D. T. Steeghs, S. G. Parsons, O. Toloza, M. R. Schreiber, P. G. Jonker, J. van Roestel, T. Kupfer, A. F. Pala, V. S. Dhillon, L. K. Hardy, S. P. Littlefair, A. Aungwerojwit, S. Arjyotha, D. Koester, J. J. Bochinski, C. A. Haswell, P. Frank and P. J. Wheatley
Additional contact information
T. R. Marsh: Gibbet Hill Road, University of Warwick
B. T. Gänsicke: Gibbet Hill Road, University of Warwick
S. Hümmerich: Bundesdeutsche Arbeitsgemeinschaft für Veränderliche Sterne e.V. (BAV)
F.-J. Hambsch: Bundesdeutsche Arbeitsgemeinschaft für Veränderliche Sterne e.V. (BAV)
K. Bernhard: Bundesdeutsche Arbeitsgemeinschaft für Veränderliche Sterne e.V. (BAV)
C. Lloyd: University of Sussex
E. Breedt: Gibbet Hill Road, University of Warwick
E. R. Stanway: Gibbet Hill Road, University of Warwick
D. T. Steeghs: Gibbet Hill Road, University of Warwick
S. G. Parsons: Instituto de Física y Astronomía, Universidad de Valparaíso, Avenida Gran Bretana 1111
O. Toloza: Gibbet Hill Road, University of Warwick
M. R. Schreiber: Instituto de Física y Astronomía, Universidad de Valparaíso, Avenida Gran Bretana 1111
P. G. Jonker: SRON, Netherlands Institute for Space Research, Sorbonnelaan 2
J. van Roestel: Radboud University Nijmegen, PO Box 9010
T. Kupfer: Mathematics and Astronomy, California Institute of Technology
A. F. Pala: Gibbet Hill Road, University of Warwick
V. S. Dhillon: University of Sheffield
L. K. Hardy: University of Sheffield
S. P. Littlefair: University of Sheffield
A. Aungwerojwit: Faculty of Science, Naresuan University
S. Arjyotha: Program of Physics, Faculty of Science and Technology, Chiang Rai Rajabhat University
D. Koester: Institut für Theoretische Physik und Astrophysik, University of Kiel
J. J. Bochinski: The Open University
C. A. Haswell: The Open University
P. Frank: Bundesdeutsche Arbeitsgemeinschaft für Veränderliche Sterne e.V. (BAV)
P. J. Wheatley: Gibbet Hill Road, University of Warwick

Nature, 2016, vol. 537, issue 7620, 374-377

Abstract: Observations of a white dwarf/cool star binary that emits from X-ray to radio wavelengths, AR Sco, reveal a close binary with a 3.56-h period, pulsing in brightness with a period of 1.97 min; these pulses are so intense that the optical flux of AR Sco can increase by a factor of four within 30 s, and the pulsing is detectable at radio frequencies.

Date: 2016
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DOI: 10.1038/nature18620

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