Can beating between different dynamo modes explain multiple magnetic cycles in solar - type stars
1 Laboratoire AIM, CEA/DSM-CNRS, Sap, F-91191, Gif-Sur Yvette, France
2 Department of Geoscience, Aarhus University, Hoegh-Gukdbergs Gade 2, DK-8000 Aarhus C, Denmark
3 Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University, Ny Munkgade 120, DK-8000 Aarhus C, Denmark
4 Space Science Institute, Boulder CO 80301 USA
a e-mail: email@example.com
Published online: 23 September 2015
Stellar magnetic activity can be characterized by a chaotic, multiple or single cycle behavior. Sometimes cyclic activity can be interrupted by a flat behavior. The mechanism that produce such a diverse behavior in stellar atmosphere is a matter of debate. We decided to address this issue by investigating the properties of a sample of 40 stars with high quality cycles, selected from the original data provided by the Mount Wilson Observatory. This sample contains stars with single and secondary cycles, whose secondary periods are longer or shorter than the primary cycle.
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