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RS CVn STARS: Photospheric Phenomena and Rotation

Published online by Cambridge University Press:  12 April 2016

S. Catalano
S. Catalano*
Affiliation:
Institute of Astronomy, University of Catania, Italy

Abstract

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This review presents a summary of observed photospheric phenomena on RS CVn stars: the amplitude, shape, evolution and migration rate of the photometric wave in relation to the rotational and orbital motion.

The main points considered are: 1) the activity level (maximum amplitude, short and long timescale variability) versus rotation period; 2) the activity cycles as inferred from changes in the wave migration rate and direction and from the variation of its amplitude; 3) the detection of differential rotation; 4) the connection between the orbital period variation and activity.

Type
Session III: Observed Activity in Related Objects
Information
International Astronomical Union Colloquium , Volume 71: Activity in Red-Dwarf Stars , 1983 , pp. 343 - 361
Copyright
Copyright © Reidel 1983

References

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