Line-profile variations of stochastically excited oscillations in four evolved stars

@article{Hekker2010LineprofileVO,
  title={Line-profile variations of stochastically excited oscillations in four evolved stars},
  author={S. Hekker and C. Aerts},
  journal={Astronomy and Astrophysics},
  year={2010},
  volume={515},
  pages={1-9}
}
Context. Since solar-like oscillations were first detected in red-giant stars, the presence of non-radial oscillation modes has been debated. Spectroscopic line-profile analysis was used in the first attempt to perform mode identification, which revealed that non-radial modes are observable. Despite the fact that the presence of non-radial modes could be confirmed, the degree or azimuthal order could not be uniquely identified. Here we present an improvement to this first spectroscopic line… Expand

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