A quasar hatching from a buried red phase at z = 3.7

arXiv:2607.22966 · astro-ph.GA · Submitted 2026-07-25 · Read on arXiv

Zheng Ma, Yongda Zhu, Zhiyuan Ji, Eiichi Egami, Marcia J. Rieke, Xiaohui Fan, Jianwei Lyu, George H. Rieke, Fengwu Sun, Yang Sun, George D. Becker, Andrew J. Bunker, Francesco D'Eugenio, Xiangyu Jin, Ignas Juodžbalis, Weizhe Liu, Roberto Maiolino, Pierluigi Rinaldi, Feige Wang, Christopher N. A. Willmer, Yunjing Wu, Jinyi Yang, Junyu Zhang, Peixin Zhu

astro-ph.GA

Submitted: 2026-07-25

Comments: 26 pages, 5 main figures, and 10 Extended Data figures. Submitted, comments are welcome

Code: https://github.com/fengwusun/nircam_grism

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• AGN — 71× in this paper · explained in 1 episode
• Aperture — 19× in this paper · explained in 1 episode
• Dust Attenuation — 10× in this paper · explained in 2 episodes
• Trace — 9× in this paper · explained in 2 episodes
• Calibration — 8× in this paper · explained in 7 episodes
• Milky Way — 5× in this paper
• Little Red Dots — 3× in this paper · explained in 2 episodes
• Velocity Dispersion — 3× in this paper · explained in 2 episodes
• Aperture Photometry — 2× in this paper · explained in 1 episode
• Consistency — 2× in this paper · explained in 3 episodes
• Core — 2× in this paper · explained in 2 episodes
• Initial Data — 2× in this paper · explained in 2 episodes
• JWST Advanced Deep Extragalactic Survey — 2× in this paper
• Metallicity — 2× in this paper · explained in 3 episodes
• Small Magellanic Cloud — 2× in this paper
• alpha — 2× in this paper · explained in 1 episode
• AGN Feedback — 1× in this paper · explained in 1 episode
• Abundance — 1× in this paper · explained in 1 episode
• Aperture Correction — 1× in this paper · explained in 1 episode
• European Research Council — 1× in this paper

Sources

• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• A JWST/NIRSpec First Census of Broad-Line AGNs at z=4-7: Detection of 10 Faint AGNs with M_BH~10^6-10^8 M_sun and Their Host Galaxy Properties
• JADES: comprehensive census of broad-line AGN from Reionization to Cosmic Noon revealed by JWST
• A prevalent population of normal-mass central black holes in high-redshift massive galaxies
• 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
• Early metal-enriched baryon cycling before the midpoint of cosmic reionization
• JADES reveals a large population of low mass black holes at high redshift
• JWST meets Chandra: a large population of Compton thick, feedback-free, and intrinsically X-ray weak AGN, with a sprinkle of SNe
• Little Red Dots host Black Hole Stars: A unified family of gas-reddened AGN revealed by JWST/NIRSpec spectroscopy
• Water absorption confirms cool atmospheres in two little red dots
• Extreme Galaxy-scale Outflows Are Frequent among Luminous Early Quasars

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