Diverse Oxygen Abundance in Early Galaxies Unveiled by Auroral Line Analysis with JWST

We present deep JWST NIRSpec observations in the sightline of MACS J1149.5+2223, a massive cluster of galaxies at z=0.54. We report the spectroscopic redshift of 28 sources at 3<z<9.1, including 9 sources with the detection of the [OIII]4363 auroral line. Combining these with 16 [OIII]4363-detected sources from publicly available JWST... Show more