Michael Zingale: Stellar Convection

We are modeling the late stages of stellar convection in massive stars using Castro with a hybrid reaction network + NSE table and exploring advanced time-integration methods to accurately couple hydrodynamics and reactions.
All of the source code for reproducing these simulations is available on github

Simulations of Convection in Massive Stars

We've developed a new time-integration algorithm that combines our simplified-SDC method with an on-grid network and NSE table to allow for efficient modeling of massive stars leading up to core collapse.

view of convection in a massive star

publications

Strong Coupling of Hydrodynamics and Reactions in Nuclear Statistical Equilibrium for Modeling Convection in Massive Stars, Zingale, Michael, Chen, Zhi, Johnson, Eric T., Katz, Max P. & Smith Clark, Alexander, 2024, ApJ, 977, 30