Disk Structure May Determine AGN Variability and Explain the Accretion Disk Size Problem: No Broad Line Region Required

arXiv:2610.12462 · astro-ph.HE, astro-ph.GA · Submitted 2026-10-08 · Read on arXiv

astro-ph.HE, astro-ph.GA

Submitted: 2026-10-08

Updated: 2026-10-08

Terminology

• AGN — 106× in this paper · explained in 1 episode
• Active Galactic Nuclei (AGN) — 2× in this paper · explained in 1 episode
• Accretion Physics — 1× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes

Sources

• Testing disc reprocessing models for AGN optical variability by comparison of X-ray and optical power spectra of NGC 4395
• Amoeba: An AGN Model of Optical Emissions Beyond steady-state Accretion discs
• Frequency-resolved lags in UV/optical continuum reverberation mapping
• AGN STORM 2. IV. Swift X-ray and ultraviolet/optical monitoring of Mrk 817
• AGN Continuum Reverberation Mapping Based on Zwicky Transient Facility Light Curves
• FORGE'd in FIRE II: The Formation of Magnetically-Dominated Quasar Accretion Disks from Cosmological Initial Conditions
• Radiation and Magnetic Pressure Support in Accretion Disks around Supermassive Black Holes and The Physical Origin of the Extreme Ultraviolet to Soft X-ray Spectrum
• Magnetosonic Waves as a Driver of Observed Temperature Fluctuation Patterns in AGN Accretion Disks
• AGN STORM 2. XII. Ground-Based Optical Photometry and Lag Measurements of Mrk 817
• AGN STORM 2. VI. Mapping Temperature Fluctuations in the Accretion Disk of Mrk 817
• Negative Lags on the Viscous Timescale in Quasar Photometry and Prospects for Detecting More with LSST
• Measuring the Vertical Structure of Active Galactic Nuclei Disks with Transformer Models and the Vera C. Rubin Observatory
• Continuum Reverberation in Bright Quasars Using NASA/ATLAS
• A Negative Long Lag from the Optical to the UV Continuum in Fairall 9

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