Hydrodynamical Models of Accretion Disks in SU UMa Systems

Details Hydrodynamical Models of Accretion Disks in SU UMa Systems Hydrodynamical Models of Accretion Disks in SU UMa Systems

2000-03-13

arxiv.org/abs/astro-ph/0003169v1

Astronomy and Astrophysics

Astrophysics

Submitted to Acta Astronomica. 13 pages, 8 figures

Scientific paper

We numerically test the mode-coupling model (Lubow 1991a) of tidal instability in SU UMa systems. So far, all numercial models confirming it have been based on SPH codes and isothermal equation of state. In our paper we present Eulerian models, using both isothermal approximation and the full energy equation. We also investigate influence of different ways of mass transfer. While isothermal models behave similarly to SPH simulations, the behaviour of models with full energy equation is quite different, and the mode-coupling model is not confirmed in this case.

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