On using dipolar modes to constrain the helium glitch in red giant stars

@article{Dreau2020OnUD,
  title={On using dipolar modes to constrain the helium glitch in red giant stars},
  author={G. Dr'eau and Margarida S. Cunha and Mathieu Vrard and Premessa Fondamentale and Universit'e Paris-Saclay and Instituto de Astrof'isica e Ciencias do Espacco and Universidade do Porto and School of Cosmic Physics and Astronomy and University of Birmingham and Department of Physics Astronomy and The Ohio State University and Departamento de Astronomia and Faculdad de Ciencias and Lesia and Observatoire de Paris},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2020},
  volume={497},
  pages={1008-1014}
}
The space-borne missions CoRoT and Kepler have revealed numerous mixed modes in red-giant stars. These modes carry a wealth of information about red-giant cores, but are of limited use when constraining rapid structural variations in their envelopes. This limitation can be circumvented if we have access to the frequencies of the pure acoustic dipolar modes in red giants, i.e. the dipole modes that would exist in the absence of coupling between gravity and acoustic waves. We present a pilot… Expand

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