Fig. 9.
Teff – log g diagram from APOGEE DR14 (left panel) and LAMOST DR3 (right panel) stellar atmosphere parameters for the stars in common, color-coded by three different ranges in [Fe/H]. Overplotted are 5 Gyr isochrones (Bressan et al. 2012) at [Fe/H] = +0.3, –0.2, and –1.0 dex. The error bars represent the typical uncertainties in Teff and log g in the two surveys.
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