The GLASS-JWST Early Release Science Program: IV. Data release of 263 spectra from 245 unique sources

Vulcani, B.; Bradač, M.; Brammer, G.; Treu, T.; Castellano, M.; Jones, T.; Pentericci, L.; Santini, P.; Merlin, E.; Wang, X.; Glazebrook, K.; Nanayakkara, T.; Williams, H.; Calabrò, A.; Morishita, T.; Henry, A.; Kelly, P. L.; Yang, L.; Mason, C.; Chen, W.; Boyett, K.; Paris, D.; Napolitano, L.; Mascia, S.; Roberts-Borsani, G.; Roy, N.; Watson, P. J.

Italy, Switzerland, United States, Denmark, Australia, China, Slovenia

Abstract

We release fully reduced spectra obtained with NIRSpec onboard JWST as part of the GLASS-JWST Early Release Science Program and a follow-up Director's Discretionary Time program 2756. From these 263 spectra of 245 unique sources, acquired with low (R = 30–300) and high dispersion (R ~ 2700) gratings, we derive redshifts for 200 unique sources in the redshift range ɀ = 0–10. We describe the sample selection and characterize its high completeness as a function of redshift and apparent magnitude. Comparison with independent estimates based on different methods and instruments shows that the redshifts are accurate, with 80% differing less than 0.005. We stack the GLASS-JWST spectra to produce the first high-resolution (R ~ 2700) JWST spectral template extending in the rest frame wavelength from 2000 Å to 20 000 Å. Catalogs, reduced spectra, and template are made publicly available to the community.

2024 Astronomy and Astrophysics
JWST 4