Transition from spot to faculae domination - An alternate explanation for the dearth of intermediate Kepler rotation periods

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Fig. 3.

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Reduced photometric (top panel) and chromospheric (bottom panel) time series of Fig. 1. Sine fits to the data are shown in red with their cycle periods given at the top of each panel. In the lower panel a sine wave with a long period of 28.1 yr has been subtracted (see Table B.1).

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