2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/10718Photometric redshifts for galaxies in the Hubble Deep Field are measured. Luminosity functions show steepening of the faint-end slope and mild brightening of M* out to z~3, followed by a decline at higher z; an excess of faint, star-forming galaxies is seen at low z. Our results are consistent with the formation of large galaxies at z=2-3, followed by that of dwarfs at z<1.2 pages. To appear in the proceedings of the 37th Herstmonceux conference, "HST and the High Redshift Universe"Astrophysicstext