Image Details
Caption: Figure 9.
The [X/H] stellar chemical abundances of the oldest low-mass Population II stars in each of the 17 Population II galaxies in the simulation, for each of eight metals (Sr and Ba are excluded because they exist in only trace amounts). Shown is the median across each of the oldest Population II star formation events for each galaxy, with scatter representing 16th–84th percentile.
© 2025. The Author(s). Published by the American Astronomical Society.