Title: Recent Advances in Stellar Astrophysics from Multi-Dimensional Simulations
Abstract:
Stars play an important role in astrophysics as exoplanet hosts, progenitors of supernova & compact objects, and as a source of chemical enrichment. The advent of high-precision photometric observations of stars has enabled asteroseismology to probe the interiors of stars better than ever before. Although stellar structure and evolution are typically studied using one-dimensional models, new asteroseismic observations have yielded new mysteries, indicating the presence of poorly-understood multidimensional processes. In this talk, I will present new multi-dimensional simulations of processes important for stellar structure and evolution using the Dedalus code. I will describe how these simulations have led to better understanding of convective overshoot and wave generation in massive stars. These multi-dimensional simulations can be leveraged to produce one-dimensional parameterizations for understanding stellar evolution. Combining numerical simulations, stellar evolution modeling, and observations are the key to making predictive and accurate models of stars that are so important across astrophysics.
