Deviations from a uniform period spacing of gravity modes in a massive star

  title={Deviations from a uniform period spacing of gravity modes in a massive star},
  author={Pieter Degroote and Conny Aerts and Annie Baglin and Andrea Miglio and Maryline Briquet and Arlette Noels and Ewa Niemczura and Josefina Montalb{\'a}n and Steven Bloemen and Raquel Oreiro and M. Vu{\vc}kovi{\'c} and Kris Smolders and Michel Auvergne and Frédéric Baudin and Claude Catal{\`a} and Eric Michel},
The life of a star is dominantly determined by the physical processes in the stellar interior. Unfortunately, we still have a poor understanding of how the stellar gas mixes near the stellar core, preventing precise predictions of stellar evolution. The unknown nature of the mixing processes as well as the extent of the central mixed region is particularly problematic for massive stars. Oscillations in stars with masses a few times that of the Sun offer a unique opportunity to disentangle the… 
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