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

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 ($R\sim 2700$) gratings, we derive redshifts for 200 unique sources in the redshift range $z=0-10$. 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 ($R\sim 2700$) 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.

Accepted for publication in A&A

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