Understanding Simulations of Thin Accretion Disks by Energy Equation

Abstract

We study the fluctuations of standard thin accretion disks by linear analysis of the time-dependent energy equation together with the vertical hydrostatic equilibrium and the equation of state. We show that some of the simulation results in Hirose et al. (2009b), such as the time delay, the relationship of power spectra, and the correlation between magnetic energy and radiation energy, can be well understood by our analytic results.

13 pages, 3 figure, accepted for publication in ApJ

References in corpus (4)

• Kepler Observations of Rapid Optical Variability in Active Galactic Nuclei
• Simulations of Magnetorotational Turbulence with a Higher-Order Godunov Scheme
• Thermodynamics of an Accretion Disk Annulus with Comparable Radiation and Gas Pressure
• GRMHD prediction of coronal variability in accreting black holes

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• The Sloan Digital Sky Survey Reverberation Mapping Project: Ensemble Spectroscopic Variability of Quasar Broad Emission Lines
• CAPOS: The bulge Cluster APOgee Survey I. Overview and initial ASPCAP results
• Evolution of quasar stochastic variability along its main sequence
• A Mini-Chemical Scheme with Net Reactions for 3D GCMs I.: Thermochemical Kinetics
• Thermal Stability of Magnetized, Optically Thin, Radiative Cooling-dominated Accretion Disks
• Correlations of Disk and Jet Emission Deviating from the Fundamental Plane