The UNCOVER Survey: A First-look HST+JWST Catalog of Galaxy Redshifts and Stellar Population Properties Spanning 0.2 ≲ z ≲ 15

Author:

Wang 王冰 Bingjie 洁ORCID,Leja JoelORCID,Labbé IvoORCID,Bezanson RachelORCID,Whitaker Katherine E.ORCID,Brammer GabrielORCID,Furtak Lukas J.ORCID,Weaver John R.ORCID,Price Sedona H.ORCID,Zitrin AdiORCID,Atek HakimORCID,Coe DanORCID,Cutler Sam E.ORCID,Dayal PratikaORCID,van Dokkum PieterORCID,Feldmann RobertORCID,Marchesini DaniloORCID,Franx MarijnORCID,Förster Schreiber NataschaORCID,Fujimoto SeijiORCID,Geha MarlaORCID,Glazebrook KarlORCID,de Graaff AnnaORCID,Greene Jenny E.ORCID,Juneau StéphanieORCID,Kassin SusanORCID,Kriek MariskaORCID,Khullar GouravORCID,Maseda MichaelORCID,Mowla Lamiya A.ORCID,Muzzin AdamORCID,Nanayakkara ThemiyaORCID,Nelson Erica J.ORCID,Oesch Pascal A.ORCID,Pacifici CamillaORCID,Pan RichardORCID,Papovich CaseyORCID,Setton David J.ORCID,Shapley Alice E.ORCID,Smit RenskeORCID,Stefanon MauroORCID,Suess Katherine A.ORCID,Taylor Edward N.ORCID,Williams Christina C.ORCID

Abstract

Abstract The recent UNCOVER survey with the James Webb Space Telescope (JWST) exploits the nearby cluster A2744 to create the deepest view of our Universe to date by leveraging strong gravitational lensing. In this work, we perform photometric fitting of more than 50,000 robustly detected sources out to z ∼ 15. We show the redshift evolution of stellar ages, star formation rates, and rest-frame colors across the full range of 0.2 ≲ z ≲ 15. The galaxy properties are inferred using the Prospector Bayesian inference framework using informative Prospector-β priors on the masses and star formation histories to produce joint redshift and stellar populations posteriors. Additionally, lensing magnification is performed on the fly to ensure consistency with the scale-dependent priors. We show that this approach produces excellent photometric redshifts with σ NMAD ∼ 0.03, of a similar quality to the established photometric redshift code EAzY. In line with the open-source scientific objective of this Treasury survey, we publicly release the stellar population catalog with this paper, derived from our photometric catalog adapting aperture sizes based on source profiles. This release (the catalog and all related documentation are accessible via the UNCOVER survey web page: https://jwst-uncover.github.io/DR2.html#SPSCatalogs with a copy deposited to Zenodo at doi:10.5281/zenodo.8401181) includes posterior moments, maximum likelihood spectra, star formation histories, and full posterior distributions, offering a rich data set to explore the processes governing galaxy formation and evolution over a parameter space now accessible by JWST.

Funder

National Aeronautics and Space Administration

Publisher

American Astronomical Society

Subject

Space and Planetary Science,Astronomy and Astrophysics

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