AAS 197, January 2001
Session 81. Supernovae and Nova Theory
Display, Wednesday, January 10, 2001, 9:30am-7:00pm, Exhibit Hall

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[81.10] Convective Instability in Core-Collapse Supernovae

C. D. SooHoo (North Carolina State University), D. Paquin (Davidson College), J.M. Blondin (Department of Physics North Carolina State University)

We are investigating the effects of asymmetry on convective instability in core-collapse supernovae. We use the numerical hydrodynamics code, VH-1, to simulate the shock wave resulting from a core-bounce of a Type II (core-collapse) supernova. We perform simulations in both one and two dimensions with symmetric and various asymmetric density perturbation conditions. Simulations showed that for asymmetric conditions there are significant increases in convective instability within milliseconds after bounce with only minor density perturbations. Diagnostics include animations of entropy, angular velocity and vorticity, as well as graphical analysis of average shock radius and the kinetic energy of turbulence.

The author(s) of this abstract have provided an email address for comments about the abstract: csoohoo@unity.ncsu.edu

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