Dissecting the Obscured Core of GN20: an Active Galactic Nucleus Outshone by Young Stars

arXiv:2606.31312 · astro-ph.GA · Submitted 2026-06-30 · Read on arXiv

M. Hamed, L. Colina, P. G. Pérez-González, J. Álvarez Márquez, A. Crespo Gómez, L. A. Boogaard, A. Bik, H. Übler, S. E. I. Bosman, A. Alonso-Herrero, M. Perna, S. Arribas, L. Ulivi, M. Annunziatella, L. Costantin, A. Labiano, C. -L. Liao, C. Prieto-Jiménez, P. van der Werf, F. Walter

astro-ph.GA

Submitted: 2026-06-30

Comments: Submitted to A&A (29.05). 12 pages, 4 figures and 2 tables

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

Terminology

• AGN — 156× in this paper · explained in 1 episode
• Core — 64× in this paper · explained in 2 episodes
• Aperture — 53× in this paper · explained in 1 episode
• Dust Attenuation — 6× in this paper · explained in 2 episodes
• Calibration — 4× in this paper · explained in 7 episodes
• Consistency — 3× in this paper · explained in 3 episodes
• Population Synthesis — 2× in this paper · explained in 2 episodes
• AGN Feedback — 1× in this paper · explained in 1 episode
• APEX — 1× in this paper · explained in 1 episode
• Aperture Correction — 1× in this paper · explained in 1 episode
• Homogenization — 1× in this paper · explained in 2 episodes
• Initial Mass Function (IMF) — 1× in this paper · explained in 2 episodes
• James Webb Space Telescope — 1× in this paper
• Little Red Dots — 1× in this paper · explained in 2 episodes
• Robustness — 1× in this paper · explained in 5 episodes
• Trace — 1× in this paper · explained in 2 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• A stellar bar hidden in an extreme gas-rich disk galaxy at z=4.055
• Direct pathway to the Early Supermassive Black Holes: A Red Super-Eddington Quasar in a Massive Starburst Host at $z=7.2$
• There Is More to Outshining: 2D Dust Effects on Stellar Mass Estimates at $3 \leq z < 9$ with JWST in the JADES Field
• MEGA: Spectrophotometric SED Fitting of Little Red Dots Detected in JWST MIRI

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