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Full Phase Coverage of BY Dra with the VLA

Published online by Cambridge University Press:  12 April 2016

Jean-Pierre Caillault  and
Stephen Drake
Jean-Pierre Caillault
Affiliation:
University of Georgia, Athens, GA 30602USA
Stephen Drake
Affiliation:
SMM Data Analysis Center, Greenbelt, MD 20770USA

Abstract

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We have obtained 21 ~one-hour observations of the prototypical spotted star, BY Dra, with the VLA. These data are sufficiently well spaced in time to allow for complete rotational and orbital phase coverage; the resultant radio light curves are compared to their optical counterpart. We also plot the emission versus time without phase-folding, in order to search for longer periods of activity. Splitting the data into smaller (three minute) time bins allows for the determination of the normalized amplitude distribution of the flux; we compare this with known stellar optical and X-ray flare distributions.

Type
Part IV Stellar activity
Information
International Astronomical Union Colloquium , Volume 130: The Sun and Cool Stars: activity, magnetism, dynamos , 1991 , pp. 494 - 497
Copyright
Copyright © Springer-Verlag 1991

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