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SUMMARY:A new generation of multi-dimensional stellar structure models - I
 sabelle Baraffe (University of Exeter)
DTSTART:20170511T150000Z
DTEND:20170511T160000Z
UID:TALK72256@talks.cam.ac.uk
CONTACT:Simon Hodgkin
DESCRIPTION:I will present the recent development of multi-dimensional ste
 llar\nstructure models based on a fully compressible hydrodynamical time i
 mplicit\ncode\, the MUSIC code\, devoted to stellar and planetary interior
 s. I will\ndiscuss the main challenges in the computations of multi-dimens
 ional stellar\nstructures and some of the advantages of our approach with 
 MUSIC for the\nstudy of stellar fluid dynamics problems. MUSIC is interfac
 ed with our\nstellar evolution code and with MESA\, which provide initial 
 1D stellar\nstructures for any type of star and allow exploration of a wid
 e range of\nstellar phases and masses. I will present our first applicatio
 ns to a\nvariety of problems\, in particular the study of accretion's effe
 ct on the\nstructure of very young low mass stars\nand the problem of conv
 ection and overshooting in pre-MS stars.  I will show\nthe success of our
  approach with MUSIC for the treatment of overshooting\n within the conte
 xt of lithium depletion in the Sun and in solar-like stars.\nA major motiv
 ation for these studies is to derive new prescriptions to be\nimplemented 
 in stellar evolution codes and  to improve stellar evolution\nmodels that
  are widely used in stellar and galactic astrophysics.\n
LOCATION:Sackler Lecture Theatre\, IoA (tea at 3:30 pm)
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