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Magnetic Cycles and Rotation in Active Late–Type Stars

Published online by Cambridge University Press:  26 May 2016

Ilkka Tuominen ,
Svetlana V. Berdyugina  and
Maarit J. Korpi
Ilkka Tuominen
Affiliation:
Astronomy Division, PO BOX 3000, 90014 University of Oulu, Finland
Svetlana V. Berdyugina
Affiliation:
Astronomy Division, PO BOX 3000, 90014 University of Oulu, Finland
Maarit J. Korpi
Affiliation:
Astronomy Division, PO BOX 3000, 90014 University of Oulu, Finland Laboratoire d'Astrophysique, Observatoire Midi-Pyrénées, 14, Av. Edouard Belin, 31400 Toulouse, France

Abstract

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Observational evidence, based both on spectroscopic Doppler imaging and long-term photometry, of strongly nonaxisymmetric spot distributions in magnetically very active late-type stars, with a special cyclic behaviour (the “flip-flop” effect), is presented. Theoretical implications of these results are discussed from the point of view of nonlinear mean-field dynamo theory.

Type
Session 2 Rotation in Relation with Abundances and Magnetic Fields
Information
Symposium - International Astronomical Union , Volume 215: Stellar Rotation , 2004 , pp. 289 - 291
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

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