Fig. 8
Position of G-type stars with activity cycles in the Teff−log g diagram (black empty squares). Blue filled circles with error bars correspond to the parameters of HD 45184 derived by different authors. Red lines are isochrones for solar abundances shown for log age = 9.0, 9.2, 9.4, 9.6, and 9.8; the black line is the ZAMS. The position of the Sun is also included in the figure.
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