Throughout Stellar Evolution
Wednesday 28
Session 2 - Magnetic activity in the Sun and main-sequence stars with convective outer layers
Chair: Gaitee Hussain
› 11:00 - 11:20 (20min)
Finding activity cycles in Kepler data
Krisztián Vida  1, *@  , Katalin Oláh  1@  
1 : Konkoly Observatory  (MTA CSFK CSI)
* : Corresponding author

We analyse light curves of 39 fast-rotating active stars from the Kepler database. Using time-frequency analysis, we find proof for activity cycles of 400-900 days at 8 targets: the changing typical latitude of the starspots and the differential rotation of the stellar surface changes the observed rotation period.


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