Extreme Variability Reveals How the Eddington Ratio Regulates Coronal Power in Active Galactic Nuclei

arXiv:2607.19485 · astro-ph.GA, astro-ph.HE · Submitted 2026-07-21 · Read on arXiv

Arghajit Jana, Claudio Ricci, Franz E. Bauer, Kriti Kamal Gupta, Benny Trakhtenbrot, Alessia Tortosa, Ruancun Li, Luis C. Ho, Richard Mushotzky, Hsiang-Kuang Chang, Yaherlyn Diaz, Georgios Dimopoulos, Kristína Kallová, Michael J. Koss, Stéphane Paltani, Matthew J. Temple

astro-ph.GA, astro-ph.HE

Submitted: 2026-07-21

Comments: 4 figures, accepted for publication in ApJ Letter. Comments are welcome

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

Terminology

• AGN — 47× in this paper · explained in 1 episode
• Accretion Physics — 3× in this paper · explained in 2 episodes
• Trace — 2× in this paper · explained in 2 episodes
• BAT AGN Spectroscopic Survey — 1× in this paper
• Microlensing — 1× in this paper · explained in 2 episodes

Sources

• Directly tracking the re-brightening of a supermassive black hole accretion disk

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