Image Details
Caption: Figure 6.
Representative CMDs of the sample reaching depths below the red clump (UGC 9240; left) and ∼2 mag below the TRGB (UGC08638; middle). The right panel replots UGC 09240 with labels identifying populations in the CMD in different stages of stellar evolution (MS: main sequence; HeB: helium-burning sequences; AGB: asymptotic giant branch stars; RGB: red giant branch stars). Error bars on the right of each panel indicate typical photometric errors in each magnitude bin.
© 2026. The Author(s). Published by the American Astronomical Society.