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SUMMARY:Convection\, waves and mixing in stars: insights and challenges fr
 om numerical simulations - Thomas Guillet (Exeter)
DTSTART:20240513T130000Z
DTEND:20240513T140000Z
UID:TALK212143@talks.cam.ac.uk
CONTACT:Roger Dufresne
DESCRIPTION:The lifecycle of stars is profoundly shaped by the internal tr
 ansport and mixing of chemical elements. Within most stars\, regions of co
 nvective motions and stable stratification coexist\, separated by so-calle
 d convective boundaries. While convective regions are very efficient at mi
 xing chemical species\, stably stratified regions mostly inhibit the verti
 cal transport of elements. Current models suggest that mixing beyond conve
 ctive regions is needed to explain observed stellar properties. Waves\, ex
 cited by convection at convective boundaries\, could play a crucial role b
 y providing additional mixing in the vertical direction.\n\nIn this talk\,
  I will highlight results from recent numerical simulations with the MUSIC
  code on the study of waves\, convection\, and mixing in stars. I will dis
 cuss challenges in measuring vertical mixing and transport by waves in num
 erical simulations\, and present some prospects for improving our understa
 nding of mixing mechanisms through numerical experiments.
LOCATION:MR14 DAMTP and online
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