Image Details
Caption: Figure 4.
The locations of HE 2148−2039 and HE 2155−2043 in the H-R diagram are shown. The isochrone tracks for log(age/Gyr) 10.20, 10.0, 9.9, 9.8, 9.70, 9.60, 9.40, and 9.25 are shown from bottom to top.
© 2026. The Author(s). Published by the American Astronomical Society.