TY - JOUR
T1 - Turbulent magnetic field amplification from spiral SASI modes in core-collapse supernovae
AU - Endeve, E.
AU - Cardali, C. Y.
AU - Budiardja, R. D.
AU - Mezzacappa, A.
PY - 2012
Y1 - 2012
N2 - We describe the initial implementation of magnetohydrodynamics (MHD) in our astrophysical simulation code GENASIS. Then, we present MHD simulations exploring the capacity of the stationary accretion shock instability (SASI) to generate magnetic fields by adding a weak magnetic field to an initially spherically symmetric fluid configuration that models a stalled shock in the post-bounce supernova environment. Upon perturbation and nonlinear SASI development, shear flows associated with the spiral SASI mode contributes to a widespread and turbulent field amplification mechanism. While the SASI may contribute to neutron star magnetization, these simulations do not show qualitatively new features in the global evolution of the shock as a result of SASI-induced magnetic field amplification.
AB - We describe the initial implementation of magnetohydrodynamics (MHD) in our astrophysical simulation code GENASIS. Then, we present MHD simulations exploring the capacity of the stationary accretion shock instability (SASI) to generate magnetic fields by adding a weak magnetic field to an initially spherically symmetric fluid configuration that models a stalled shock in the post-bounce supernova environment. Upon perturbation and nonlinear SASI development, shear flows associated with the spiral SASI mode contributes to a widespread and turbulent field amplification mechanism. While the SASI may contribute to neutron star magnetization, these simulations do not show qualitatively new features in the global evolution of the shock as a result of SASI-induced magnetic field amplification.
UR - http://www.scopus.com/inward/record.url?scp=84874304164&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/402/1/012027
DO - 10.1088/1742-6596/402/1/012027
M3 - Conference article
AN - SCOPUS:84874304164
SN - 1742-6588
VL - 402
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012027
T2 - 23rd Conference on Computational Physics, CCP 2011
Y2 - 30 October 2012 through 3 November 2012
ER -