JWST Advanced Deep Extragalactic Survey Data Release 5: Photometrically Selected Galaxy Candidates at z > 8
Abstract
We present a sample of 2081 sources selected at a photometric redshift z phot > 8 across the JADES DR5 data release in GOODS-S and GOODS-N over a total area of 469 arcmin 2 . These sources range from M UV = −22 to M UV = −16, with 19 objects at z phot > 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 M UV 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 z phot ∼ 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 Ly α damping wing absorption, finding that both produce significant improvements to the estimated photometric redshifts.
Related
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BibTeX
@article{hainline2026jwst,
title = {{JWST Advanced Deep Extragalactic Survey Data Release 5: Photometrically Selected Galaxy Candidates at z > 8}},
author = {Kevin Hainline and Daniel Eisenstein and Lily Whitler and Brant Robertson and Benjamin Johnson and Peter Jakobsen and Dávid Puskás and Sandro Tacchella and Jakob Helton and Zihao Wu and Santiago Arribas and William Baker and Andrew Bunker and Alex Cameron and Stefano Carniani and Courtney Carreira and Stephane Charlot and Jacopo Chevallard and Emma Curtis-Lake and Francesco D’eugenio and Qiao Duan and Eiichi Egami and Ryan Hausen and Zhiyuan Ji and Tobias Looser and Roberto Maiolino and Petra Mengistu and Pablo Pérez-González and Marcia Rieke and Pierluigi Rinaldi and Fengwu Sun and James Trussler and Hannah Übler and Christina Williams and Christopher Willmer and Chris Willott and Joris Witstok},
journal = {The Astrophysical Journal},
year = {2026},
month = sep,
doi = {10.3847/1538-4357/ae710a},
url = {https://hal.science/hal-05760825v1},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - JOUR
TI - JWST Advanced Deep Extragalactic Survey Data Release 5: Photometrically Selected Galaxy Candidates at z > 8
AU - Kevin Hainline
AU - Daniel Eisenstein
AU - Lily Whitler
AU - Brant Robertson
AU - Benjamin Johnson
AU - Peter Jakobsen
AU - Dávid Puskás
AU - Sandro Tacchella
AU - Jakob Helton
AU - Zihao Wu
AU - Santiago Arribas
AU - William Baker
AU - Andrew Bunker
AU - Alex Cameron
AU - Stefano Carniani
AU - Courtney Carreira
AU - Stephane Charlot
AU - Jacopo Chevallard
AU - Emma Curtis-Lake
AU - Francesco D’eugenio
AU - Qiao Duan
AU - Eiichi Egami
AU - Ryan Hausen
AU - Zhiyuan Ji
AU - Tobias Looser
AU - Roberto Maiolino
AU - Petra Mengistu
AU - Pablo Pérez-González
AU - Marcia Rieke
AU - Pierluigi Rinaldi
AU - Fengwu Sun
AU - James Trussler
AU - Hannah Übler
AU - Christina Williams
AU - Christopher Willmer
AU - Chris Willott
AU - Joris Witstok
PY - 2026
DA - 2026/09/29
JO - The Astrophysical Journal
DO - 10.3847/1538-4357/ae710a
UR - https://hal.science/hal-05760825v1
AB - We present a sample of 2081 sources selected at a photometric redshift z phot > 8 across the JADES DR5 data release in GOODS-S and GOODS-N over a total area of 469 arcmin 2 . These sources range from M UV = −22 to M UV = −16, with 19 objects at z phot > 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 M UV 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 z phot ∼ 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 Ly α damping wing absorption, finding that both produce significant improvements to the estimated photometric redshifts.
SN - 0004-637X
SN - 1538-4357
ER -