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1 results

  • Asteroseismology of fast-rotating stars: the example of α Ophiuchi

  • Giovanni M. Mirouh, Daniel R. Reese, Francisco Espinosa Lara, Jérôme Ballot, Michel Rieutord
  • Journal:
    Proceedings of the International Astronomical Union / Volume 9 / Issue S301 / August 2013
    Published online by Cambridge University Press:
    18 February 2014, pp. 455-456
    Print publication:
    August 2013
    • Article
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  • Many early-type stars have been measured with high angular velocities. In such stars, mode identification is difficult as the effects of fast and differential rotation are not well known. Using fundamental parameters measured by interferometry, the ESTER structure code and the TOP oscillation code, we investigate the oscillation spectrum of α Ophiuchi, for which observations by the MOST satellite found 57 oscillations frequencies. Results do not show a clear identification of the modes and highlight the difficulties of asteroseismology for such stars with a very complex oscillation spectrum.