Thomas Harvey

Diverse Histories and Common Origins of Nitrogen-enhanced JWST Galaxies

Abstract Early JWST spectra revealed galaxies with a strong nitrogen excess, challenging galactic chemical evolution models. Using public JWST surveys, we construct a sample of 76 N/O-enhanced galaxies (NOEGs) at 4 < z < 8.5, the largest at high redshift to date. The NOEG fractio...