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Rotation-Activity Connections in Main Sequence Binaries

Published online by Cambridge University Press:  12 April 2016

O. Vilhu  and
S.M. Rucinski
O. Vilhu
Affiliation:
Observatory and Astrophysics, Laboratory, Univ. of Helsinki, Finland
S.M. Rucinski
Affiliation:
Max-Planck-Institut für, Astrophysik, Garching b. München, W. Germany

Extract

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We have studied transition-region (NV + SilV + CIV) and chromospheric (MgII) emission observed with IUE (Vilhu and Rucinski, 1982; Rucinski and Vilhu, 1982; Ayres et al., 1981) together with coronal (soft X-ray) emission observed with the Einstein satellite (Cruddace and Dupree, 1982; Walter, 1982) for contact (W UMa) and detached main sequence binaries. The components are main sequence stars (or near ms) and rapid rotators due to spin-orbit coupling. They can thus be expected to give information of dynamo-processes in rapid rotators, although the binary effects clearly produce extra complications in this discussion.

Type
Session III: Observed Activity in Related Objects
Information
International Astronomical Union Colloquium , Volume 71: Activity in Red-Dwarf Stars , 1983 , pp. 475 - 477
Copyright
Copyright © Reidel 1983

References

Ayres, T.R., Marstad, N.C. & Linsky, J.L., 1981, Astrophys. J. 247, 545.Google Scholar
Cruddace, R.G. & Dupree, A.K., 1981, preprint.Google Scholar
Rosner, R., Tucker, W.H. & Vaiana, G.S., 1978, Astrophys. J. 220, 643.CrossRefGoogle Scholar
Rucinski, S.M. & Vilhu, O., 1982, MNRAS, in press.Google Scholar
Vilhu, O. & Rucinski, S.M., 1982, in prep.Google Scholar
Walter, F., 1982, Astrophys. J. 253, 745.Google Scholar