JWST/NIRSpec Measurements of Extremely Low Metallicities in High Equivalent Width Lyman-$\alpha$ Emitters

Michael V. Maseda, Zach Lewis, Jorryt Matthee +19

Deep VLT/MUSE optical integral field spectroscopy has recently revealed an abundant population of ultra-faint galaxies ($M_{UV}\approx -15$; 0.01 $L_{\star }$) at $z=$2.9$-$6.7 due…