Massive Galaxies Form Early and Gray: Stellar Assembly and Dust Attenuation at $\mathbf{z}>3.5$ from CAPERS

Katherine Chworowsky, Steven L. Finkelstein, Anthony J. Taylor +27

The stellar mass assembly of massive galaxies in the first few billion years of cosmic history remains a central challenge in galaxy formation. Galaxies with $M_\star \gtrsim 10^{1…