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Differential rotation on active late-type stars observed with Corot

Published online by Cambridge University Press:  26 February 2010

P. Gondoin
Affiliation:
European Space Agency, ESTEC - Postbus 299, 2200 AG Noordwijk, The Netherlands
M. Fridlund
Affiliation:
European Space Agency, ESTEC - Postbus 299, 2200 AG Noordwijk, The Netherlands
D. Gandolfi
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany
E. Güenter
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany
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Abstract

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One major topic in studying stellar activity is to explain how phenomena seen on the Sun and stars, and specially magnetic phenomena, depend on stellar properties such as rotation and age. Differential rotation is an important physical process in theories of stellar magnetic field generation. The solar surface differential rotation was initially discovered via the simple method of tracking the rotation rates of individual starspots at different latitudes. Adopting a similar principle, high accuracy light curves of active stars observed with the CoRoT satellite are analyzed using a model based on the rotational modulation of the visibility of active regions.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2010

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