Stability of Standing Accretion Shocks, with an Eye toward Core‐Collapse Supernovae
The Astrophysical Journal2003Vol. 584(2), pp. 971–980
Citations Over TimeTop 10% of 2003 papers
Abstract
We examine the stability of standing, spherical accretion shocks. Accretion shocks arise in core collapse supernovae (the focus of this paper), star formation, and accreting white dwarfs and neutron stars. We present a simple analytic model and use time-dependent hydrodynamics simulations to show that this solution is stable to radial perturbations. In two dimensions we show that small perturbations to a spherical shock front can lead to rapid growth of turbulence behind the shock, driven by the injection of vorticity from the now non-spherical shock. We discuss the ramifications this instability may have for the supernova mechanism.
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