Kavli Affiliate: Roberto Maiolino
| First 5 Authors: Emma Curtis-Lake, Emma Curtis-Lake, , ,
| Summary:
This paper accompanies Data Release 4 of the JWST Deep Extragalactic Survey
(JADES), which presents the full NIRSpec spectroscopy of the survey. We provide
spectra of 5190 targets across GOODS-North and GOODS-South (including the
Hubble Ultra Deep Field), observed with the low-dispersion (R $sim$ 30-300)
prism and three medium-resolution (R $sim$ 1000) gratings spanning 0.8 $<
lambda <$ 5.5 microns; 2654 were also observed with the higher-resolution (R
$sim$ 2700) G395H grating. The tiered survey design obtained more than 20 hr
exposures for $sim$ 700 galaxies in the Deep and Ultra Deep tiers, and
shallower observations ($sim$ 1-3 hr per setting) of $>$ 4400 galaxies in the
Medium tiers. Targets were selected from photometric redshifts or colours, with
priority given to rest-UV-selected galaxies at $z > 5.7$ and F444W-selected
galaxies at $1.5 < z < 5.7$. We describe the full target selection and present
spectroscopic redshifts and success rates. In total we obtain robust redshifts
for 3297 galaxies, including 396 at $z > 5.7$ and 2545 at $1.5 < z < 5.7$. To
facilitate uniform analyses, we define ‘gold’ sub-samples based on UV- and
F444W-selection. Using the parent samples and redshift success rates, we
construct rest-UV luminosity functions at $6 lesssim z lesssim 9$ from the
Medium- and Deep-JWST tiers. Our number densities agree well with previous
determinations from both photometric and spectroscopic samples, with modest
interloper fractions confirming the reliability of photometric UV-bright galaxy
selections at these redshifts.
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