The GLASS-JWST Early Release Science Program

IV. Data release of 263 spectra from 245 unique sources

¹ INAF – Osservatorio Astronomico di Roma, via Frascati 33, 00078 Monteporzio Catone, Italy
² Dipartimento di Fisica, Università di Roma Tor Vergata, Via della Ricerca Scientifica, 1, 00133 Roma, Italy
³ Department of Astronomy, University of Geneva, Chemin Pegasi 51, 1290 Versoix, Switzerland
⁴ Department of Physics and Astronomy, University of California, Los Angeles, 430 Portola Plaza, Los Angeles, CA 90095, USA
⁵ School of Physics and Astronomy, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455, USA
⁶ Cosmic Dawn Center (DAWN), Denmark
⁷ Niels Bohr Institute, University of Copenhagen, Jagtvej 128, 2200 Copenhagen N, Denmark
⁸ Space Telescope Science Institute, 3700 San Martin Drive, Baltimore MD, 21218, USA
⁹ Center for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218, USA
¹⁰ Infrared Processing and Analysis Center, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
¹¹ Centre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122, Australia
¹² School of Astronomy and Space Science, University of Chinese Academy of Sciences (UCAS), Beijing 100049, China
¹³ National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100101, China
¹⁴ Institute for Frontiers in Astronomy and Astrophysics, Beijing Normal University, Beijing 102206, China
¹⁵ School of Physics, University of Melbourne, Parkville 3010, VIC, Australia
¹⁶ ARC Centre of Excellence for All Sky Astrophysics in 3 Dimensions (ASTRO 3D), Australia
¹⁷ University of Ljubljana, FMF, Department of Mathematics and Physics, Jadranska ulica 19, 1000 Ljubljana, Slovenia
¹⁸ Department of Physics and Astronomy, University of California Davis, 1 Shields Avenue, Davis, CA 95616, USA
¹⁹ INAF – Osservatorio Astronomico di Padova, Vicolo Osservatorio 5, 35122 Padova, Italy
²⁰ Laboratory for Multiwavelength Astrophysics, School of Physics and Astronomy, Rochester Institute of Technology, 84 Lomb Memorial Drive, Rochester, NY 14623, USA
²¹ Centre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, VIC 3122, Australia

Received: 24 April 2024
Accepted: 25 June 2024

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.