Image Details
Caption: Figure 12.
Effective temperature—surface gravity—metallicity distributions for uncalibrated full APOGEE sample (top) and for calibrated giant sample (bottom). Isochrones from Bressan et al. (2012) for a 4 Gyr population, with metallicities [M/H] = −1.8, −1.5, −1.0, −0.5, 0., 0.3 are overlaid.
© 2015. The American Astronomical Society. All rights reserved.