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Fig. 9.


Kepler rotation periods Prot against B − V color taken from Reinhold & Gizon (2015). The data points are color-coded with the variability range Rvar. Black and yellow symbols show spot- and faculae-dominated stars, respectively, for the current sample. As before dots show dwarf stars (luminosity class V) and diamonds show (sub-) giants (luminosity class III, IV, IV-V). The solid blue, dotted black, and solid red lines show 300 Myr, 800 Myr, and 2550 Myr isochrones, respectively, using gyrochronology relations from Barnes (2010).

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