Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-17T18:15:08.746Z Has data issue: false hasContentIssue false
  • English
  • Français

Evidence for Wind Anisotropies from Dust Formation by Wolf-Rayet Stars

Published online by Cambridge University Press:  12 April 2016

Peredur M. Williams
Peredur M. Williams*
Affiliation:
Royal Observatory, Edinburgh

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The formation and survival of dust around stars requires a physical environment very different from that believed to hold anywhere in a Wolf-Rayet stellar wind. The observed facts of dust formation by Wolf-Rayet stars force the conclusion that their winds are not homogeneous. They also allow us to deduce the types of inhomogeneity, including clumps and large-scale high-density wakes produced in colliding-wind binaries, that allow the formation of dust.

Type
Section III Variable Winds
Information
International Astronomical Union Colloquium , Volume 169: Variable and Non-spherical Stellar Winds in Luminous Hot Stars , 1999 , pp. 275 - 278
Copyright
Copyright © Springer-Verlag 1999

References

Cherchneff, I., Tielens, A.G.G.M. (1995): Dust formation in hot stellar winds, in: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution, IAU Symposium 163 eds van der Hucht, K.A., Williams, P.M., (Kluwer, Dordrecht), 346–354 Google Scholar
Usov, V.V. (1991): Stellar wind collision and dust formation in long-period, heavily interacting Wolf-Rayet binaries. MNRAS 252, 49–52 Google Scholar
Veen, P.M., Van Genderen, A.M., van der Hucht, K.A., Li, A., Sterken, C., Dominik, C. (1998): WR121 obscured by a dust cloud: the key to understanding occasional “eclipses” of “dusty” Wolf-Rayet WC stars ? A&A 329, 199–213 Google Scholar
Williams, P.M., van der Hucht, K.A. (1996): A search for companions to dust-making Wolf-Rayet stars, in: Wolf-Rayet Stars in the Framework of Stellar Evolution, Proc. 33rd Liège International Astrophysical Colloquium, eds Vreux, J-M. et al., (Université de Liège, Liège), 353–359 Google Scholar
Williams, P.M., van der Hucht, K.A., Thé, P.S. (1987): Infrared photometry of late-type Wolf-Rayet stars. A&A 182, 91–106 Google Scholar
Williams, P.M., van der Hucht, K.A., Pollock, A.M.T., Florkowski, D.R., van der Woerd, H., Wamsteker, W.M. (1990): Multi-frequency variations of the Wolf-Rayet system HD 193793 - I. Infrared, X-ray and radio observations. MNRAS, 243, 662–684 Google Scholar
Williams, P.M. (1997): Formation of dust in hostile environments — what we learn from observing Wolf-Rayet stars. Ap&SS 251, 321–331 Google Scholar