The Astrophysical Journal (Jan 2025)
The UNCOVER Survey: First Release of Ultradeep JWST/NIRSpec PRISM Spectra for ∼700 Galaxies from z ∼ 0.3–13 in A2744
- Sedona H. Price,
- Rachel Bezanson,
- Ivo Labbe,
- Lukas J. Furtak,
- Anna de Graaff,
- Jenny E. Greene,
- Vasily Kokorev,
- David J. Setton,
- Katherine A. Suess,
- Gabriel Brammer,
- Sam E. Cutler,
- Joel Leja,
- Richard Pan,
- Bingjie Wang,
- John R. Weaver,
- Katherine E. Whitaker,
- Hakim Atek,
- Adam J. Burgasser,
- Iryna Chemerynska,
- Pratika Dayal,
- Robert Feldmann,
- Natascha M. Förster Schreiber,
- Yoshinobu Fudamoto,
- Seiji Fujimoto,
- Karl Glazebrook,
- Andy D. Goulding,
- Gourav Khullar,
- Mariska Kriek,
- Danilo Marchesini,
- Michael V. Maseda,
- Tim B. Miller,
- Adam Muzzin,
- Themiya Nanayakkara,
- Erica Nelson,
- Pascal A. Oesch,
- Heath Shipley,
- Renske Smit,
- Edward N. Taylor,
- Pieter van Dokkum,
- Christina C. Williams,
- Adi Zitrin
Affiliations
- Sedona H. Price
- ORCiD
- Department of Physics and Astronomy and PITT PACC, University of Pittsburgh , Pittsburgh, PA 15260, USA
- Rachel Bezanson
- ORCiD
- Department of Physics and Astronomy and PITT PACC, University of Pittsburgh , Pittsburgh, PA 15260, USA
- Ivo Labbe
- ORCiD
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology , Melbourne, VIC 3122, Australia
- Lukas J. Furtak
- ORCiD
- Physics Department, Ben-Gurion University of the Negev , P.O. Box 653, Be’er-Sheva 84105, Israel
- Anna de Graaff
- ORCiD
- Max-Planck-Institut für Astronomie , Königstuhl 17, D-69117 Heidelberg, Germany
- Jenny E. Greene
- ORCiD
- Department of Astrophysical Sciences, Princeton University , 4 Ivy Lane, Princeton, NJ 08544, USA
- Vasily Kokorev
- ORCiD
- Department of Astronomy, The University of Texas at Austin , Austin, TX 78712, USA
- David J. Setton
- ORCiD
- Department of Astrophysical Sciences, Princeton University , 4 Ivy Lane, Princeton, NJ 08544, USA
- Katherine A. Suess
- ORCiD
- Kavli Institute for Particle Astrophysics and Cosmology and Department of Physics, Stanford University , Stanford, CA 94305, USA
- Gabriel Brammer
- ORCiD
- Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen , Jagtvej 128, København N, Copenhagen DK-2200, Denmark
- Sam E. Cutler
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Joel Leja
- ORCiD
- Department of Astronomy & Astrophysics, The Pennsylvania State University , University Park, PA 16802, USA; Institute for Computational & Data Sciences, The Pennsylvania State University , University Park, PA 16802, USA; Institute for Gravitation and the Cosmos, The Pennsylvania State University , University Park, PA 16802, USA
- Richard Pan
- ORCiD
- Department of Physics and Astronomy, Tufts University , 574 Boston Avenue, Medford, MA 02155, USA
- Bingjie Wang
- ORCiD
- Department of Astronomy & Astrophysics, The Pennsylvania State University , University Park, PA 16802, USA; Institute for Computational & Data Sciences, The Pennsylvania State University , University Park, PA 16802, USA; Institute for Gravitation and the Cosmos, The Pennsylvania State University , University Park, PA 16802, USA
- John R. Weaver
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Katherine E. Whitaker
- ORCiD
- Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen , Jagtvej 128, København N, Copenhagen DK-2200, Denmark; Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Hakim Atek
- ORCiD
- Institut d’Astrophysique de Paris, CNRS, Sorbonne Université , 98bis Boulevard Arago, 75014 Paris, France
- Adam J. Burgasser
- ORCiD
- Department of Astronomy & Astrophysics, University of California San Diego , La Jolla, CA, USA
- Iryna Chemerynska
- ORCiD
- Institut d’Astrophysique de Paris, CNRS, Sorbonne Université , 98bis Boulevard Arago, 75014 Paris, France
- Pratika Dayal
- ORCiD
- Kapteyn Astronomical Institute, University of Groningen , 9700 AV Groningen, The Netherlands
- Robert Feldmann
- ORCiD
- Department of Astrophysics, University of Zurich , Zurich CH-8057, Switzerland
- Natascha M. Förster Schreiber
- ORCiD
- Max-Planck-Institut für extraterrestrische Physik , Giessenbachstrasse 1, 85748 Garching, Germany
- Yoshinobu Fudamoto
- ORCiD
- Center for Frontier Science, Chiba University , 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
- Seiji Fujimoto
- ORCiD
- Department of Astronomy, The University of Texas at Austin , Austin, TX 78712, USA
- Karl Glazebrook
- ORCiD
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology , Melbourne, VIC 3122, Australia
- Andy D. Goulding
- ORCiD
- Department of Astrophysical Sciences, Princeton University , 4 Ivy Lane, Princeton, NJ 08544, USA
- Gourav Khullar
- ORCiD
- Department of Physics and Astronomy and PITT PACC, University of Pittsburgh , Pittsburgh, PA 15260, USA
- Mariska Kriek
- ORCiD
- Leiden Observatory, Leiden University , P.O. Box 9513,NL-2300 AA Leiden, The Netherlands
- Danilo Marchesini
- ORCiD
- Department of Physics and Astronomy, Tufts University , 574 Boston Avenue, Medford, MA 02155, USA
- Michael V. Maseda
- ORCiD
- Department of Astronomy, University of Wisconsin-Madison , 475 N. Charter Street, Madison, WI 53706, USA
- Tim B. Miller
- ORCiD
- Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), Northwestern University , 1800 Sherman Avenue, Evanston, IL 60201, USA
- Adam Muzzin
- ORCiD
- Department of Physics and Astronomy, York University , 4700 Keele Street, Toronto, Ontario, ON MJ3 1P3, Canada
- Themiya Nanayakkara
- ORCiD
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology , Melbourne, VIC 3122, Australia
- Erica Nelson
- ORCiD
- Department for Astrophysical and Planetary Science, University of Colorado , Boulder, CO 80309, USA
- Pascal A. Oesch
- ORCiD
- Cosmic Dawn Center (DAWN), Niels Bohr Institute, University of Copenhagen , Jagtvej 128, København N, Copenhagen DK-2200, Denmark; Department of Astronomy, University of Geneva , Chemin Pegasi 51, 1290 Versoix, Switzerland
- Heath Shipley
- ORCiD
- Department of Physics, Texas State University , San Marcos, TX 78666, USA
- Renske Smit
- ORCiD
- Astrophysics Research Institute, Liverpool John Moores University , 146 Brownlow Hill, Liverpool L3 5RF, UK
- Edward N. Taylor
- ORCiD
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology , Melbourne, VIC 3122, Australia
- Pieter van Dokkum
- ORCiD
- Astronomy Department, Yale University , 219 Prospect Street, New Haven, CT 06511, USA
- Christina C. Williams
- ORCiD
- NSF’s National Optical-Infrared Astronomy Research Laboratory , 950 North Cherry Avenue, Tucson, AZ 85719, USA
- Adi Zitrin
- ORCiD
- Physics Department, Ben-Gurion University of the Negev , P.O. Box 653, Be’er-Sheva 84105, Israel
- DOI
- https://doi.org/10.3847/1538-4357/adaec1
- Journal volume & issue
-
Vol. 982,
no. 1
p. 51
Abstract
We present the design and observations of low-resolution JWST/NIRSpec PRISM spectroscopy from the Ultradeep NIRSpec and NIRCam ObserVations before the Epoch of Reionization (UNCOVER) Cycle 1 JWST Treasury program. Targets are selected using JWST/NIRCam photometry from UNCOVER and other programs, and cover a wide range of categories and redshifts to ensure the legacy value of the survey. These categories include the first galaxies at z ≳ 10, faint galaxies during the Epoch of Reionization ( z ∼ 6−8), high-redshift active galactic nuclei ( z ≳ 6), Population III star candidates, distant quiescent and dusty galaxies (1 ≲ z ≲ 6), and filler galaxies sampling redshift–color–magnitude space from z ∼ 0.1−13. Seven NIRSpec microshutter array masks across the extended A2744 cluster were observed, along with NIRCam parallel imaging in nine filters (F090W, F115W, F150W, F200W, F277W, F356W, F410M, F444W, and F480M) over a total area of ∼26 arcmin ^2 , overlapping existing Hubble Space Telescope coverage from programs including the Hubble Frontier Fields and BUFFALO. We successfully observed 553 objects down to m _F444W ∼ 30 AB, and by leveraging mask overlaps, we reach total on-target exposure times ranging from 2.4 to 16.7 hr. We demonstrate the success rate and distribution of the confirmed redshifts, and also highlight the rich information revealed by these ultradeep spectra for a subset of our targets. An updated lens model of A2744 is also presented, including 14 additional spectroscopic redshifts and finding a total cluster mass of M _SL = (2.1 ± 0.3) × 10 ^15 M _⊙ . We publicly release reduced 1D and 2D spectra for all objects observed in summer 2023 along with a spectroscopic redshift catalog and the updated lens model of the cluster ( https://jwst-uncover.github.io/DR4.html ).
Keywords
