Rotation, dissipation, and magnetism in models of stellar convection

by Matthew Browning (Univ. Exeter)

Tuesday 10 May 2022, 15:00 → 16:00 Europe/Stockholm

stockholmuniversity.zoom.us/j/940229961

Convection occurs in the interior of every star, and in many planets as well. The convective motions transport heat and angular momentum, and can in some cases also build magnetic fields, with a variety of observable consequences. But lately it has become clear that we've probably been getting a few things wrong about the convection. I will talk about how observations are providing interesting constraints on these flows, and about our efforts to understand them using a combination of numerical simulations, parameterised models, and analytical theory. I will argue in particular that we have a reasonably good understanding of how rotation affects the convective heat transport, at least in some regimes, but that many other puzzles remain to be solved.

https://ui.adsabs.harvard.edu/abs/2020MNRAS.493.5233C/abstract

https://ui.adsabs.harvard.edu/abs/2018ApJ...856..132I/abstract

https://ui.adsabs.harvard.edu/abs/2017ApJ...845L..17C/abstract