Collisional effects in the blue wing of the Balmer-alpha line

  title={Collisional effects in the blue wing of the Balmer-alpha line},
  author={Nicole F. Allard and Fernand Spiegelman and John F. Kielkopf and S. Bourdreux},
  journal={Astronomy \& Astrophysics},
In order to investigate the near wing of the Lyman-α line, accurate line profile calculations and molecular data are both required due to the existence of a close line satellite responsible for its asymmetrical shape. Lyman-α lines observed with the Cosmic Origin Spectograph (COS) on the Hubble Space Telescope (HST) show this peculiarity in the spectra of DBA and DA white dwarf stars. A similar asymmetrical shape in the blue wing can be predicted in the Balmer-α line of H perturbed by He and H… 



Theoretical Chemistry Accounts

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MOLPRO, version 2015.1

  • 2015