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Fig. 8

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Variability fractions of the stars in the calibrator candidate sample as a function of magnitude. Following Ciardi et al. (2011), the blue curve represents the fractions of stars with χv2>2$\chi_{v}^{2}>2$, the green curve the fractions of stars with χv2>10$\chi_{v}^{2}>10$, and the orange curve the fractions of stars with χv2>100$\chi_{v}^{2}>100$.

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