Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-29T19:37:26.251Z Has data issue: false hasContentIssue false
  • English
  • Français

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

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

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

References

Caillault, J.-P., Drake, S., Florkowski, D.: 1988, Astron. J. 95, 887 CrossRefGoogle Scholar
Caillault, J.-P., Patterson, J.., Skillman, D.: 1989, in IAU Colloquium No 104 Solar and Stellar Flares, eds. Haisch, B.M. and Rodonò, M., Catania p. 119 Google Scholar
Caillault, J.-P., Zoonematkermani, S.: 1990, in Flare Stars in Star Clusters, Associations and in the Solar Vicinity, eds. Mirzoyan, L.V. et al., Kluwer p. 159 CrossRefGoogle Scholar
Cutispoto, G., Leto, G., Pagano, I., Santagati, G., Ventura, R.: 1987, Inf. Bull. Var. Stars, No 3102 Google Scholar
Drake, J.F.: 1971, Solar Physics 16, 152 Google Scholar
Gary, D.E.: 1985, in Radio Stars, eds. Hjellming, R., Gibson, D.M., Reidel, Dordrect, p. 185 Google Scholar
Gary, D.E.: 1986, in Fourth Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, eds. Zeilik, M. and Gibson, D.M., Springer, Berlin, p. 235 CrossRefGoogle Scholar
Kunkel, W.E.: 1973, Astrophys. J. Suppl. 25, 1 Google Scholar
Linsky, J.L., Gary, D.E.: 1983, Astrophys. J. 274, 776 Google Scholar
Montmerle, T., Koch-Miramond, L., Falgarone, E., Grindlay, J.E.: 1983, Astrophys. J. 269, 182 Google Scholar