Image Details
Caption: Figure 7.
Kiel diagram for the final sample of 91,542 stars, with points color coded according to their metallicity [Fe/H]. The MIST isochrones are superimposed on the diagram. The dashed lines represent isochrones with different metallicities at the same age of 2.0 Gyr, i.e., −1.5, −0.5, and 0.0 dex for the blue, green, and orange lines, respectively. The red solid line corresponds to an [Fe/H] value of 0.0 dex at an age of 1.0 Gyr. The remaining solid lines represent isochrones with different metallicities at the same age of 8.0 Gyr, i.e., −1.5, −0.5, and 0.0 dex for the blue, green, and orange lines.
© 2026. The Author(s). Published by the American Astronomical Society.