Speckle interferometry and radiative transfer modelling of the Wolf-Rayet star WR 118

  title={Speckle interferometry and radiative transfer modelling of the Wolf-Rayet star WR 118},
  author={Boris Yudin and Yu. Yu. Balega and Thomas Bloecker and K. H. Hofmann and Dieter Schertl and G. Ponti Astronomical Institute and Moscow and Russia Special Astrophysical Observatory and Nizhnij Arkhyz and Russia Max-Planck-Institut fuer Radioastronomie and Bonn and H Germany},
  journal={Astronomy and Astrophysics},
WR 118 is a highly evolved Wolf-Rayet star of the WC10 subtype surrounded by a permanent dust shell absorbing and re-emitting in the infrared a considerable fraction of the stellar luminosity. We present the rst diraction-limited 2.13 m speckle interferometric observations of WR 118 with 73 mas resolution. The speckle interferograms were obtained with the 6 m telescope at the Special Astrophysical Observatory. The two- dimensional visibility function of the object does not show any signicant… 

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