Discovery of the Lyman- alpha Forest in a Star-Forming Galaxy at z about 7.57: Implications for the Timing and Topology of Cosmic Reionization

arXiv:2609.38080 · astro-ph.GA · Submitted 2026-09-29 · Read on arXiv

astro-ph.GA

Submitted: 2026-09-29

Updated: 2026-10-05

Code: https://github.com/joriswitstok/emission

Project page: https://jades-survey.github.io/scientists/data.html

Terminology

• Abundance — 21× in this paper · explained in 1 episode
• Trace — 7× in this paper · explained in 2 episodes
• Aperture — 6× in this paper · explained in 1 episode
• Calibration — 5× in this paper · explained in 7 episodes
• Absorption Cross Section — 4× in this paper · explained in 1 episode
• Bayesian Inference — 4× in this paper · explained in 5 episodes
• Metallicity — 4× in this paper · explained in 3 episodes
• Alignment — 3× in this paper · explained in 1 episode
• Dust Attenuation — 3× in this paper · explained in 2 episodes
• Velocity Dispersion — 3× in this paper · explained in 2 episodes
• Consistency — 2× in this paper · explained in 3 episodes
• AGN — 1× in this paper · explained in 1 episode
• AURA for the European Space Agency — 1× in this paper
• Advanced Camera for Surveys — 1× in this paper
• Aperture Photometry — 1× in this paper · explained in 1 episode
• CSA James Webb Space Telescope — 1× in this paper
• Clustering — 1× in this paper · explained in 2 episodes
• DAWN JWST Archive — 1× in this paper
• Degeneracy — 1× in this paper · explained in 3 episodes
• European Research Council — 1× in this paper
• Large Language Models (LLMs) — 1× in this paper · explained in 6 episodes
• Population Synthesis — 1× in this paper · explained in 2 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• RUBIES: The Evolution of the Ionization Parameter from 0 < z < 9
• Reionization driven by the few: the ionizing budget of galaxies at z=5-10 from JWST/NIRSpec
• The No-U-Turn Sampler: Adaptively Setting Path Lengths in Hamiltonian Monte Carlo
• JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: NIRCam Imaging in GOODS-S and GOODS-N
• JWST ASPIRE: How Did Galaxies Complete Reionization? Evidence for Excess IGM Transmission around ${\rm [O\,{\scriptstyle III}]}$ Emitters during Reionization
• ECOGAL I. Project design and the first catalogue
• JWST Advanced Deep Extragalactic Survey (JADES) Data Release 5: Photometric Catalog
• From THESAN-ZOOM to JWST: Predicting ionizing photon escape and the rise of UV-bright reionization sources

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• Deriving volume density profiles of filaments from observed surface densities
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