Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2012-03-16
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
Submitted to the proceedings of the International Conference Turbulent Mixing and Beyond, held 21 - 28 August, 2011 at the Abd
Scientific paper
The stationary accretion shock instability (SASI) plays a central role in modern simulations of the explosion phase of core-collapse supernovae (CCSNe). It may be key to realizing neutrino powered explosions, and possibly links birth properties of pulsars (e.g., kick, spin, and magnetic field) to supernova dynamics. Using high-resolution magnetohydrodynamic simulations, we study the development of turbulence, and subsequent amplification of magnetic fields in a simplified model of the post-bounce core-collapse supernova environment. Turbulence develops from secondary instabilities induced by the SASI. Our simulations suggest that the development of turbulence plays an important role for the subsequent evolution of the SASI. The turbulence also acts to amplify weak magnetic fields via a small-scale dynamo.
Blondin John M.
Budiardja Reuben D.
Cardall Christian Young
Endeve Eirik
Mezzacappa Anthony
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