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2 results

  • Testing microphysics data

  • Przemysław Walczak, Jadwiga Daszyńska-Daszkiewicz
  • Journal:
    Proceedings of the International Astronomical Union / Volume 9 / Issue S301 / August 2013
    Published online by Cambridge University Press:
    18 February 2014, pp. 221-228
    Print publication:
    August 2013
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  • High precision asteroseismic data provide a unique opportunity to test input microphysics such as stellar opacities, chemical composition or equation of state. These tests are possible because pulsational frequencies as well as amplitudes and phases of the light variations are very sensitive to the internal structure of a star. We can therefore compute pulsation models and compare them with observations. The agreement or differences should tell us whether some models are adequate or not, and which input data need to be improved.

  • Complex asteroseismology of the B-type main sequence pulsators

  • Jadwiga Daszyńska-Daszkiewicz, Przemysław Walczak
  • Journal:
    Proceedings of the International Astronomical Union / Volume 5 / Issue H15 / November 2009
    Published online by Cambridge University Press:
    21 October 2010, pp. 364-365
    Print publication:
    November 2009
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  • We present examples of an extended asteroseismic modelling in which we aim at fitting not only pulsational frequencies but also certain complex parameter related to each frequency. This kind of studies, called complex asteroseismology, has been successfully applied to a few main sequence B-type pulsators and provided, in particular, plausible constraints on stellar opacities. Here, we briefly describe our results for three early B-type stars.