Spiral shocks in three-dimensional accretion discs

Details Spiral shocks in three-dimensional accretion discs Spiral shocks in three-dimensional accretion discs

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997mnras.292..321y&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 292, p. 321

Other

38

Accretion Disks, Three Dimensional Models, Hydrodynamic Equations, Shock Wave Profiles, Binary Stars, Hydrostatic Pressure, Digital Simulation, High Temperature Gases

Scientific paper

We have performed 3D numerical simulations of accretion disks in a close binary system using the smoothed particle hydrodynamics (SPH) method. Our results show that, contrary to previous claims, 3D disks do exist even when the specific heat ratio of the gas is as large as gamma of 1.2. Although the disk is clearly more spread in the z direction in this case than it is for the quasi-isothermal one, the disk height is compatible with the hydrostatic balance equation. Our numerical simulations with gamma of 1.2 also demonstrate that spiral shocks exist in 3D disks. These results therefore confirm previous 2D simulations.

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