Image Details
Caption: Figure 4.
Resolved, median SFHs from PROSPECTOR for the four C24 ultramassive quiescent galaxies. Colors indicate the corresponding annulus that was used to measure photometry and are identical to Figure 1. SFHs are normalized such that their integral is unity. In all galaxies except MINERVA-1189865, stellar populations in the outskirts form the bulk of their stars later on.
© 2026. The Author(s). Published by the American Astronomical Society.