Type Ia Supernovae: Simulations and Nucleosynthesis

Details Type Ia Supernovae: Simulations and Nucleosynthesis Type Ia Supernovae: Simulations and Nucleosynthesis

2005-05-19

arxiv.org/abs/astro-ph/0505417v1

Astronomy and Astrophysics

Astrophysics

Proceedings of Nuclei in the Cosmos 8, Nuc. Phys. A, in press

Scientific paper

10.1016/j.nuclphysa.2005.05.083

We present our first nucleosynthesis results from a numerical simulation of the thermonuclear disruption of a static cold Chandrasekhar-mass C/O white dwarf. The two-dimensional simulation was performed with an adaptive-mesh Eulerian hydrodynamics code, FLASH, that uses as a flame capturing scheme the evolution of a passive scaler. To compute the isotopic yields and their velocity distribution, 10,000 massless tracer particles are embedded in the star. The particles are advected along streamlines and provide a Lagrangian description of the explosion. We briefly describe our verification tests and preliminary results from post-processing the particle trajectories with a modest (214 isotopes) reaction network.

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