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The Radio Light Curve of V471 Tauri

Published online by Cambridge University Press:  27 September 2017

J.-P. Caillault ,
J. Patterson  and
D. Skillman
J.-P. Caillault
Affiliation:
Department of Physics and Astronomy, University of Georgia, Athens, GA 30607
J. Patterson
Affiliation:
Department of Astronomy, Columbia University, New York, NY 10027
D. Skillman
Affiliation:
Center for Basement Astrophysics, 9517 Washington Ave., Laurel, MD 20707

Abstract

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We have observed the white dwarf — K dwarf eclipsing binary system V471 Tauri with the VLA. We have detected in the radio flux an interesting dip centered near phase zero (the phase of white dwarf eclipse) and a 6 mJy flare shortly after mid—eclipse at phase 0.15. The best possible explanation for the dip is the self—eclipse of a large radio—emitting cloud anchored to a particular spot on the secondary, namely the sub—white dwarf point. The 6 cm flare observation and sudden variations seen in Hα suggest that this spot is an active flaring region.

Type
Session I: Stellar Flares
Information
International Astronomical Union Colloquium , Volume 104 , Issue 2: Solar and Stellar Flares , 1989 , pp. 119 - 121
Copyright
Copyright © Kluwer 1989

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