Abstract
view Abstract Citations (25) References (14) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Two-dimensional Viscous Accretion Disk Models. II. On Viscous Overstability Kley, W. ; Papaloizou, J. C. B. ; Lin, D. N. C. Abstract Accretion disks have been shown to be susceptible to pulsational overstability when the viscosity coefficient increases upon compression. In this study, the stability of an axisymmetric accretion disk with vertical structure is considered. 2D axisymmetric calculations were performed by solving the set of fully nonlinear hydrodynamic equations, including radiation transport. The time evolution of a representative section (ring) of a thin radiative accretion disk is studied. The existence of the overstability in 2D is confirmed. It is found that the presence of periodic oscillations near the outer boundary of a real disk might account for some of the low-amplitude flickering observed in dwarf novae. Publication: The Astrophysical Journal Pub Date: June 1993 DOI: 10.1086/172703 Bibcode: 1993ApJ...409..739K Keywords: Accretion Disks; Astronomical Models; Flow Stability; Two Dimensional Models; Viscosity; Hydrodynamic Equations; Nonlinear Equations; Astrophysics; ACCRETION; ACCRETION DISKS; HYDRODYNAMICS; INSTABILITIES full text sources ADS | Related Materials (1) Part 1: 1992ApJ...397..600K
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