TY - JOUR
T1 - Photometric detection at 7.7 μm of a galaxy beyond redshift 14 with JWST/MIRI
AU - Helton, Jakob M.
AU - Rieke, George H.
AU - Alberts, Stacey
AU - Wu, Zihao
AU - Eisenstein, Daniel J.
AU - Hainline, Kevin N.
AU - Carniani, Stefano
AU - Ji, Zhiyuan
AU - Baker, William M.
AU - Bhatawdekar, Rachana
AU - Bunker, Andrew J.
AU - Cargile, Phillip A.
AU - Charlot, Stéphane
AU - Chevallard, Jacopo
AU - D’Eugenio, Francesco
AU - Egami, Eiichi
AU - Johnson, Benjamin D.
AU - Jones, Gareth C.
AU - Lyu, Jianwei
AU - Maiolino, Roberto
AU - Pérez-González, Pablo G.
AU - Rieke, Marcia J.
AU - Robertson, Brant
AU - Saxena, Aayush
AU - Scholtz, Jan
AU - Shivaei, Irene
AU - Sun, Fengwu
AU - Tacchella, Sandro
AU - Whitler, Lily
AU - Williams, Christina C.
AU - Willmer, Christopher N.A.
AU - Willott, Chris
AU - Witstok, Joris
AU - Zhu, Yongda
N1 - Publisher Copyright:
© The Author(s) 2025.
PY - 2025/5
Y1 - 2025/5
N2 - The James Webb Space Telescope (JWST) has spectroscopically confirmed numerous galaxies at z > 10. While weak rest-frame ultraviolet emission lines have only been seen in a handful of sources, the stronger rest-frame optical emission lines are highly diagnostic and accessible at mid-infrared wavelengths with the Mid-Infrared Instrument (MIRI) of JWST. We report the photometric detection of the distant spectroscopically confirmed galaxy JADES-GS-z14-0 at z=14.32−0.20+0.08 with MIRI at 7.7 μm. The most plausible solution for the stellar-population properties is that this galaxy contains half a billion solar masses in stars with a strong burst of star formation in the most recent few million years. For this model, at least one-third of the flux at 7.7 μm originates from the rest-frame optical emission lines Hβ and/or [O iii]λλ4959, 5007. The inferred properties of JADES-GS-z14-0 suggest rapid mass assembly and metal enrichment during the earliest phases of galaxy formation. This work demonstrates the unique power of mid-infrared observations in understanding galaxies at the redshift frontier.
AB - The James Webb Space Telescope (JWST) has spectroscopically confirmed numerous galaxies at z > 10. While weak rest-frame ultraviolet emission lines have only been seen in a handful of sources, the stronger rest-frame optical emission lines are highly diagnostic and accessible at mid-infrared wavelengths with the Mid-Infrared Instrument (MIRI) of JWST. We report the photometric detection of the distant spectroscopically confirmed galaxy JADES-GS-z14-0 at z=14.32−0.20+0.08 with MIRI at 7.7 μm. The most plausible solution for the stellar-population properties is that this galaxy contains half a billion solar masses in stars with a strong burst of star formation in the most recent few million years. For this model, at least one-third of the flux at 7.7 μm originates from the rest-frame optical emission lines Hβ and/or [O iii]λλ4959, 5007. The inferred properties of JADES-GS-z14-0 suggest rapid mass assembly and metal enrichment during the earliest phases of galaxy formation. This work demonstrates the unique power of mid-infrared observations in understanding galaxies at the redshift frontier.
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U2 - 10.1038/s41550-025-02503-z
DO - 10.1038/s41550-025-02503-z
M3 - Article
AN - SCOPUS:86000359780
SN - 2397-3366
VL - 9
SP - 729
EP - 740
JO - Nature Astronomy
JF - Nature Astronomy
IS - 5
ER -