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The HeI λ10830 Å Observations of Two Rs Cvn Systems ζ and λ And

Published online by Cambridge University Press:  19 July 2016

A.G. Shcherbakov ,
M.J. Fernandez-Figueroa ,
F. Martin-Parra ,
E. De Castro  and
M. Cornide
A.G. Shcherbakov
Affiliation:
Crimean Astrophysical Observatory 334413 p/o Nauchny, Crimea, Ukraine
M.J. Fernandez-Figueroa
Affiliation:
Astrophysical Department of the University Complutense de Madrid, 28040 Madrid, Spain
F. Martin-Parra
Affiliation:
Astrophysical Department of the University Complutense de Madrid, 28040 Madrid, Spain
E. De Castro
Affiliation:
Astrophysical Department of the University Complutense de Madrid, 28040 Madrid, Spain
M. Cornide
Affiliation:
Astrophysical Department of the University Complutense de Madrid, 28040 Madrid, Spain

Abstract

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Magnetically active late-type stars have inhomogeneities on their surfaces that cause various observable effects in the spectral lines and light curves. Such inhomogeneities are magnetic starspots, plages etc. in active regions on the photospheric and chromospheric level. The variations of the spectral lines and light curves originating in these inhomogeneities undergo modulations following stellar rotation.

Type
4. Late-Type and Other Stars
Information
Symposium - International Astronomical Union , Volume 157: The Cosmic Dynamo , 1993 , pp. 167 - 169
Copyright
Copyright © Kluwer 1993 

References

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