The Galactic WC stars Stellar parameters from spectral analyses indicate a new evolutionary sequence

  title={The Galactic WC stars Stellar parameters from spectral analyses indicate a new evolutionary sequence},
  author={Andreas A. C. Sander and W. R. Hamann and Helge Todt},
  journal={arXiv: Solar and Stellar Astrophysics},
[Abridged] [...] AIMS: We aim to establish the stellar parameters and mass-loss rates of the Galactic WC stars. These data provide the empirical basis of studies of (i) the role of WC stars in the evolution of massive stars, (ii) the wind-driving mechanisms, and (iii) the feedback of WC stars as input to models of the chemical and dynamical evolution of galaxies. Methods: We analyze the nearly complete sample of un-obscured Galactic WC stars, using optical spectra as well as ultraviolet spectra… Expand
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