A new calibration of stellar parameters of Galactic O stars

  title={A new calibration of stellar parameters of Galactic O stars},
  author={Fabrice Martins and Daniel Schaerer and D. John Hillier},
  journal={Astronomy and Astrophysics},
We present new calibrations of stellar parameters of O stars at solar metallicity taking non-LTE, wind, and line-blanketing effects into account. Gravities and absolute visual magnitudes are derived from results of recent spectroscopic analyses. Two types of effective temperature scales are derived: one from a compilation based on recent spectroscopic studies of a sample of massive stars – the “observational scale” – and the other from direct interpolations on a grid of non-LTE spherically… Expand
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