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Variation of stellar spottedness with surface-temperature on active solar-type stars

The spottedness (S) vs. stellar effective temperature (T_eff) plot for F–M type stars taken from the catalog of McQuillan et al. (2014). The blue and gray solid circles represent the fast- and slow-rotating stars with period <1 day and ≥1 day, respectively. The red lines marked with (a), (b), (c), and (d) represent the spottedness range discussed in this paper for the stars KIC 6791060, LO Peg, K2–33, and EPIC 211901114, respectively. The yellow solid star symbol (e) represents the range of solar spottedness.

[Image Credit: Karmakar et al. (2018)]


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