Work Type
Article
Publication Date
9-20-2023
Department
Liberal Arts and Sciences
Keywords
High-redshift galaxies; Galaxy clusters; Strong gravitational lensing
Abstract
We report the discovery of four galaxy candidates observed 450–600 Myr after the Big Bang with photometric redshifts between z ∼ 8.3 and 10.2 measured using James Webb Space Telescope (JWST) NIRCam imaging of the galaxy cluster WHL0137−08 observed in eight filters spanning 0.8–5.0 μm, plus nine Hubble Space Telescope filters spanning 0.4–1.7 μm. One candidate is gravitationally lensed with a magnification of μ ∼ 8, while the other three are located in a nearby NIRCam module with expected magnifications of μ 1.1. Using SED fitting, we estimate the stellar masses of these galaxies are typically in the range log M M = 8.3–8.7. All appear young, with mass-weighted ages < 0.15 mag, and specific star formation rates sSFR ∼0.25–10 Gyr−1 for most. One z ∼ 9 candidate is consistent with an age
Recommended Citation
Bradley, Larry D., Dan Coe, Gabriel Brammer, Lukas J. Furtak, Rebecca L. Larson, Vasily Kokorev, Felipe Andrade-Santos, et al. “High-Redshift Galaxy Candidates at z = 9–10 as Revealed by JWST Observations of WHL0137-08.” The Astrophysical Journal 955, no. 1 (September 2023): 13. https://doi.org/10.3847/1538-4357/acecfe.
Comments
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