JWST Absorption-Line Analysis of UV-Bright Galaxies at z=7.2-10.6: Early Chemical Enrichment Traced by C, O, Mg, Al, Si, and Fe

arXiv:2606.08782 · astro-ph.GA · Submitted 2026-06-07 · Read on arXiv

astro-ph.GA

Submitted: 2026-06-07

Updated: 2026-08-31

Project page: https://dawn-cph.github.io/dja/spectroscopy/nirspec

Terminology

• Abundance — 38× in this paper · explained in 1 episode
• Metallicity — 11× in this paper · explained in 3 episodes
• Trace — 5× in this paper · explained in 2 episodes
• AGN — 4× in this paper · explained in 1 episode
• Calibration — 2× in this paper · explained in 7 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• Institute for Cosmic Ray Research — 2× in this paper
• James Webb Space Telescope — 2× in this paper
• Core — 1× in this paper · explained in 2 episodes
• Degeneracy — 1× in this paper · explained in 3 episodes
• Dust Attenuation — 1× in this paper · explained in 2 episodes
• Forward modeling — 1× in this paper · explained in 2 episodes
• Initial Mass Function (IMF) — 1× in this paper · explained in 2 episodes
• Markov Chain Monte Carlo — 1× in this paper
• Milky Way — 1× in this paper
• Population Synthesis — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• SPURS: Bursty Star Formation in an Extremely Luminous Weak Emission Line Galaxy at $z=9.3$
• The CEERS Photometric and Physical Parameter Catalog
• The 2013 Release of Cloudy
• Searching for Emission Lines at $z>11$: The Role of Damped Lyman-$\alpha$ and Hints About the Escape of Ionizing Photons
• A UV-Luminous Galaxy at z=11 with Surprisingly Weak Star Formation Activity
• JADES -- The small blue bump in GN-z11: insights into the nuclear region of a galaxy at z=10.6
• JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: NIRCam Imaging in GOODS-S and GOODS-N
• Signatures of Very Massive Stars in the Epoch of Reionization
• A Cosmic Miracle: A Remarkably Luminous Galaxy at $z_{\rm{spec}}=14.44$ Confirmed with JWST
• Morphological Demographics of Galaxies at $z\sim 10-16$: Log-Normal Size Distribution and Exponential Profiles Consistent with the Disk Formation Scenario
• Chemical signatures from the first stars embedded in metal-poor gas in galaxies at cosmic dawn
• JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Photometric Catalog
• Slitless Areal Pure-Parallel HIgh-Redshift Emission Survey (SAPPHIRES): Early Data Release of Deep JWST/NIRCam Images and Spectra in MACS J0416 Parallel Field
• Deep rest-UV JWST/NIRSpec spectroscopy of early galaxies: the demographics of CIV and N-emitters in the reionization era
• JWST absorption line spectroscopy with SPURS: ISM covering fractions and kinematics in individual galaxies at $z=5-9$
• GA-NIFS: Understanding the ionization nature of EGSY8p7/CEERS-1019. Evidence for a star formation-driven outflow at z = 8.6
• Early metal-enriched baryon cycling before the midpoint of cosmic reionization

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