University of Minnesota
School of Physics & Astronomy

MN Institute for Astrophysics Colloquium

Friday, September 14th 2018
Speaker: Paul Woodward, University of Minnesota
Subject: 3-D Stellar Hydrodynamics of Convective Boundary Mixing and its Consequences for Stellar Evolution

Together with collaborator Falk Herwig, at the University of Victoria, in Canada, my research team has been investigating inherently 3-D processes in stellar interiors and their effects upon stellar evolution. This work has been underway in earnest since 2013. We are focusing on brief events in stars that take place over durations of days or hours, but which involve large releases of energy due to the burning of fuels pulled into convection zones from unburned layers above. I will describe the contexts of these brief events, results of our simulations of them, and explain key aspects of how we are able to simulate them at an affordable cost. Some of our very recent work on core convection in rotating massive main sequence stars will be presented, and prospects for future work on the merger of nuclear burning shells in massive stars will be discussed.

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