Corpus ID: 118682981

Towards pulsation mode identification in 3-D: theoretical simulations of line profile variations in roAp stars

@article{Kochukhov2010TowardsPM,
  title={Towards pulsation mode identification in 3-D: theoretical simulations of line profile variations in roAp stars},
  author={Oleg Kochukhov and Elena Khomenko},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2010}
}
Time-resolved spectroscopic observations of rapidly oscillating Ap (roAp) stars show a complex picture of propagating magneto-acoustic pulsation waves, with amplitude and phase strongly changing as a function of atmospheric height. We have recently conducted numerical, non-linear MHD simulations to get an insight into the complex atmospheric dynamics of magnetic pulsators. Here we use the resulting time-dependent atmospheric structure and velocity field to predict line profile variations for… Expand

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