Type Ia Supernovae: Simulations and Nucleosynthesis

✍ Scribed by E.F. Brown; A.C. Calder; T. Plewa; P.M. Ricker; K. Robinson; J.B. Gallagher

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 159 KB
• Volume: 758
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2005.05.083

✦ Synopsis

We present our first nucleosynthesis results from a numerical simulation of the thermonuclear disruption of a static cold Chandrasekhar-mass 12 C/ 16 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 in (ρ, T ) with a modest (214 isotopes) reaction network.