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CATEGORIES:Colloquium/Seminar
DESCRIPTION:Yifeng Mao\, Department of Applied Mathematics\, University of 
 Colorado Boulder\n\nChemical transport by waves in stars \n\nStellar evolut
 ion is governed by the transport and reactions of chemical species. However
 \, we currently lack a comprehensive understanding of how these chemicals m
 igrate within the radiative zones of stars. Previous research has studied t
 he diffusion of chemical gradients due to internal gravity waves (IGWs) exc
 ited by the convective cores in the main sequence intermediate- and high-ma
 ss stars. Studying the properties of IGWs in stars and planets is essential
  as they are expected to be involved in many physical processes\, including
  rotation\, mixing\, and magnetism. Whether IGWs can help transport chemica
 ls in the radiative envelope of those main-sequence stars is a significant 
 question of interest. This work combines asymptotic and numerical calculati
 ons within an idealized Boussinesq approximation to understand the passive 
 transport of chemicals by waves in stars. It explores the conditions under 
 which waves can transport chemicals and quantitatively predicts the diffusi
 vity of these waves.
DTEND:20231003T180000Z
DTSTAMP:20260419T114955Z
DTSTART:20231003T170000Z
GEO:40.006791;-105.262818
LOCATION:Engineering Center\, ECOT 317
SEQUENCE:0
SUMMARY:Mathematical Geosciences Seminar - Yifeng Mao
UID:tag:localist.com\,2008:EventInstance_44313402377003
URL:https://calendar.colorado.edu/event/mathematical_geosciences_seminar_-_
 yifeng_mao
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