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Variability in GRMHD simulations of Sgr A: Implications for EHT closure phase observations
Lia Medeiros, Chi-kwan Chan, Feryal Özel +4
The observable quantities that carry the most information regarding the structures of the images of black holes in the interferometric observations with the Event Horizon Telescope…
Double Compton and Cyclo-Synchrotron in Super-Eddington Disks, Magnetized Coronae, and Jets
Jonathan C. McKinney, Jens Chluba, Maciek Wielgus +2
We present an extension to the general relativistic radiation magnetohydrodynamic code HARMRAD to account for emission and absorption by thermal cyclo-synchrotron, double Compton,…
Magnetic flux stabilizing thin accretion disks
Aleksander Sadowski
We calculate the minimal amount of large-scale poloidal magnetic field that has to thread the inner, radiation-over-gas pressure dominated region of a thin disk for its thermal sta…
Radiative, two-temperature simulations of low luminosity black hole accretion flows in general relativity
A. Sadowski, M. Wielgus, R. Narayan +3
We present a numerical method which evolves a two-temperature, magnetized, radiative, accretion flow around a black hole, within the framework of general relativistic radiation mag…
Thin accretion disks are stabilized by a strong magnetic field
Aleksander Sadowski
By studying three-dimensional, radiative, global simulations of sub-Eddington, geometrically thin black hole accretion flows we show that thin disks which are dominated by magnetic…
GRMHD simulations of visibility amplitude variability for Event Horizon Telescope images of Sgr A*
Lia Medeiros, Chi-kwan Chan, Feryal Ozel +4
Synthesis imaging of the black hole in the center of the Milky Way, Sgr A*, with the Event Horizon Telescope (EHT) rests on the assumption of a stationary image. We explore the lim…