Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-26T07:31:15.011Z Has data issue: false hasContentIssue false
  • English
  • Français

An empirical study of Wolf-Rayet stellar wind ionization stratification

Published online by Cambridge University Press:  07 August 2017

Matthew J. Dalton ,
Paul A. Crowther  and
Allan J. Willis
Matthew J. Dalton
Affiliation:
Department of Physics and Astronomy, University College London Gower Street, London WC1E 6BT, U.K.
Paul A. Crowther
Affiliation:
Department of Physics and Astronomy, University College London Gower Street, London WC1E 6BT, U.K.
Allan J. Willis
Affiliation:
Department of Physics and Astronomy, University College London Gower Street, London WC1E 6BT, U.K.

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.

We present an analysis of high resolution UV (IUE) and optical (INT, AAT and ESO) spectroscopy of eight galactic WN and WC stars. We examine the correlation between ionization potential (IP) and the velocity structure of the stellar winds and find important correlations between line-width, IP and excitation potential (EP). These results provide potential constraints on the velocity law used in models of WR atmospheres.

Keywords

stars: Wolf-Rayetatmospheresstratificationwinds
Type
Session II - Model atmospheres for single Wolf-Rayet stars
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 154 - 155
Copyright
Copyright © Kluwer 1995 

References

Abbott, D.C., Bieging, J.H., Churchwell, E., Torres, A.V. 1986, ApJ 303, 239 Google Scholar
Beals, C.S. 1929, MNRAS 90, 202 Google Scholar
Hillier, D.J. 1989, ApJ 347, 392 Google Scholar
Kuhi, L.V. 1973, in: Bappu, M.K.V. & Sahade, J. (eds), Wolf-Rayet Stars and High Temperature Stars, Proc. IAU Symp. No. 49 , (Dordrecht: Reidel), p. 205 Google Scholar
Niedzielski, A. 1994, A&A 282, 529 Google Scholar
Prinja, R.K., Barlow, M.J., Howarth, I.D. 1990, ApJ 361, 607 Google Scholar
Willis, A.J. 1982, MNRAS 198, 897 Google Scholar