James Webb Space Telescope Feed Post


Literature
Date: 8/30/2024

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


Paper 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 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 ~ 2700) JWST spectral template extending in the rest frame wavelength from 2000~\AA\ to 20, 000~\AA. Catalogs, reduced spectra, and template are made publicly available to the community.