Michael Zingale: Double Detonations

We are exploring how the size of the reaction network affects the ignition and propagation of the helium detonation in the double detonation model of Type Ia supernovae using Castro and pynucastro.
All of the source code for reproducing these simulations is available on github

Double Detonation Models of Type Ia Supernovae

We are modeling the double detonation scenario for SN Ia. Here, a He detonation begins in the accreted layer on a sub-Chandrasekhar mass white dwarf, driving a compression wave inward that ignites a second, C detonation near the center.

In the movie below, you can see the compression wave (rightmost panel).

publications

Sensitivity of Simulations of Double Detonation Type Ia Supernova to Integration Methodology, Zingale, Michael, Chen, Zhi, Rasmussen, Melissa, Polin, Abigail., Katz, Max, Smith Clark, Alexander, & Johnson, Eric T. 2024, ApJ, 966, 2, 150