https://ui.adsabs.harvard.edu/abs/2023arXiv230214155L
Looser et al. 2023


  • A quiescent galaxy at z=7.3 (cosmic time 700 Myr). 
  • The JWST/NIRSpec spectrum of this galaxy from our JADES program exhibits a complete absence of nebular emission lines, while the Balmer break and Lyα drop are unambiguously detected. 
  • They infer a short and intense burst of star formation followed by rapid quenching, about 10–20 Myr before the epoch of observation.


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