TY - JOUR
T1 - JWST Advanced Deep Extragalactic Survey Data Release 5: Photometrically Selected Galaxy Candidates at z > 8
AU - Hainline, Kevin N.
AU - Eisenstein, Daniel J.
AU - Whitler, Lily
AU - Robertson, Brant
AU - Johnson, Benjamin D.
AU - Jakobsen, Peter
AU - Puskás, Dávid
AU - Tacchella, Sandro
AU - Helton, Jakob M.
AU - Wu, Zihao
AU - Arribas, Santiago
AU - Baker, William M.
AU - Bunker, Andrew J.
AU - Cameron, Alex J.
AU - Carniani, Stefano
AU - Carreira, Courtney
AU - Charlot, Stephane
AU - Chevallard, Jacopo
AU - Curtis-Lake, Emma
AU - D’Eugenio, Francesco
AU - Duan, Qiao
AU - Egami, Eiichi
AU - Hausen, Ryan
AU - Ji, Zhiyuan
AU - Looser, Tobias J.
AU - Maiolino, Roberto
AU - Mengistu, Petra
AU - Pérez-González, Pablo G.
AU - Rieke, Marcia
AU - Rinaldi, Pierluigi
AU - Sun, Fengwu
AU - Trussler, James A. A.
AU - Übler, Hannah
AU - Williams, Christina C.
AU - Willmer, Christopher N. A.
AU - Willott, Chris
AU - Witstok, Joris
N1 - © 2026. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. https://creativecommons.org/licenses/by/4.0/
PY - 2026/6/20
Y1 - 2026/6/20
N2 - We present a sample of 2081 sources selected at a photometric redshift zphot > 8 across the JADES DR5 data release in GOODS-S and GOODS-N over a total area of 469 arcmin2. These sources range from MUV = −22 to MUV = −16, with 19 objects at zphot > 14. We estimate the UV slopes for the full sample from fits to the photometry and find evidence for a steepening of the relationship between the UV continuum slope and MUV to higher redshifts, a result that differs from prior analyses of brighter samples in the literature. We provide evidence that over one-quarter of our sources have evidence for being morphologically extended, with many galaxies showing multiple bright knots or clumps even out to z ∼ 13–14, an indication of how galaxies at cosmic dawn are growing and evolving. We discuss JADES-GN+189.15982+62.28899, a GOODS-N F200W dropout galaxy at zphot ∼ 15–18, which has been observed spectroscopically with JWST/NIRSpec in prism mode, resulting in a very low signal-to-noise spectrum that is consistent with the photometry and rules out a number of low-redshift solutions for the source. Finally, we use a subsample of 123 objects in our sample with spectroscopic redshifts to explore the usage of alternate fitting templates and a prescription for Lyα damping wing absorption, finding that both produce significant improvements to the estimated photometric redshifts.
AB - We present a sample of 2081 sources selected at a photometric redshift zphot > 8 across the JADES DR5 data release in GOODS-S and GOODS-N over a total area of 469 arcmin2. These sources range from MUV = −22 to MUV = −16, with 19 objects at zphot > 14. We estimate the UV slopes for the full sample from fits to the photometry and find evidence for a steepening of the relationship between the UV continuum slope and MUV to higher redshifts, a result that differs from prior analyses of brighter samples in the literature. We provide evidence that over one-quarter of our sources have evidence for being morphologically extended, with many galaxies showing multiple bright knots or clumps even out to z ∼ 13–14, an indication of how galaxies at cosmic dawn are growing and evolving. We discuss JADES-GN+189.15982+62.28899, a GOODS-N F200W dropout galaxy at zphot ∼ 15–18, which has been observed spectroscopically with JWST/NIRSpec in prism mode, resulting in a very low signal-to-noise spectrum that is consistent with the photometry and rules out a number of low-redshift solutions for the source. Finally, we use a subsample of 123 objects in our sample with spectroscopic redshifts to explore the usage of alternate fitting templates and a prescription for Lyα damping wing absorption, finding that both produce significant improvements to the estimated photometric redshifts.
KW - Galaxy formation
KW - Galaxy evolution
KW - Observational cosmology
KW - Galaxy structure
KW - Galaxies
KW - Galaxy photometry
KW - High-redshift galaxies
U2 - 10.3847/1538-4357/ae710a
DO - 10.3847/1538-4357/ae710a
M3 - Article
SN - 0004-637X
VL - 1004
JO - The Astrophysical Journal
JF - The Astrophysical Journal
IS - 2
M1 - 161
ER -