Modelling the colliding-winds spectra of the 19-d WR + OB binary in the massive triple system θ Muscae

  title={Modelling the colliding-winds spectra of the 19-d WR + OB binary in the massive triple system $\theta$ Muscae},
  author={Grant Michael Hill and Anthony F. J. Moffat and Nicole St-Louis},
  journal={Monthly Notices of the Royal Astronomical Society},
High signal-to-noise ratio, moderate-resolution spectra, providing full phase coverage of the 19-d WC6 + OB binary θ Mus (WR 48, HD 113904), have been obtained and show dramatic variations of the C III λ5696 emission-line profile. We have modelled these line profile variations using a purely geometrical model which assumes that the emission arises from two regions, an optically thin spherical shell around the WR star and a cone-shaped region that partially wraps around the OB star. The cone… 
Conditions in the WR 140 wind-collision region revealed by the 1.083-μ m He i line profile
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