The galaxy ultraviolet luminosity function from z=7 to 20 in the COLIBRE simulations
This study used COLIBRE cosmological simulations to predict how galaxy UV luminosity functions change from redshift $z=7$ to $z=20$. The results show that galaxy numbers decrease rapidly, and dust attenuation causes simulated bright galaxies to appear systematically fainter than observed data, suggesting new physics is needed at high redshifts.