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astro-ph.HE2026
Geometrically Thin Sub-Eddington AGN Accretion Disks show a suppressed Lyman Edge
Ish Kaul, Yan-Fei Jiang, Omer Blaes +1
The observed ultraviolet continua of active galactic nuclei (AGN) generally lack a strong intrinsic HI Lyman edge predicted by classical optically thick accretion disk atmosphere m…
astro-ph.HE2025
Magnetosonic Waves as a Driver of Observed Temperature Fluctuation Patterns in AGN Accretion Disks
Ish Kaul, Omer Blaes, Yan-Fei Jiang +1
Recent observations have revealed slow, coherent temperature fluctuations in AGN disks that propagate both inward and outward at velocities of , a kind of variabi…
astro-ph.HE2025
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
Yan-Fei Jiang, Omer Blaes, Ish Kaul +1
We present the results of four three-dimensional radiation magnetohydrodynamic simulations of accretion disks around a solar mass black hole, which produce the far ultraviol…