Massive High-Redshift Quiescent Galaxies With JWST

Understand

Recent ground-based deep observations of the Universe have discovered large populations of massive quiescent galaxies at z~3-5.

• With the launch of the James Webb Space Telescope (JWST), the on-board NIRSpec instrument will provide continuous 0.6-5.3 $\mu$ m spectroscopic coverage of these galaxies.
• Here we show that NIRSpec/CLEAR spectroscopy is ideal to probe the completeness of photometrically selected massive quiescent galaxies such as the ones presented by Schreiber et al.
• (2018b).