Image Details
Caption: Figure 8.
The [X/H] of the gas in galaxies that have formed only Population III. This plot summarizes 270 galaxies from five different snapshots, equally temporarily spaced from about 150 to 300 Myr. The median and the 16th–84th percentile scatter at each halo mass are shown in blue. Each metal is fit with a flat line, shown in red, to estimate a metallicity floor from Population III enrichment.
© 2025. The Author(s). Published by the American Astronomical Society.