Hostname: page-component-6bf8c574d5-j5c6p Total loading time: 0 Render date: 2025-03-07T03:21:34.612Z Has data issue: false hasContentIssue false
  • English
  • Français

O-Star Wind Variability in the Ultraviolet and Optical Range

Published online by Cambridge University Press:  12 April 2016

Lex Kaper
Lex Kaper*
Affiliation:
Astronomical Institute, University of Amsterdam, Kruislaan 403, 1098 Amsterdam, The Netherlands

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.

Variability is a fundamental property of O-star winds. One of the major breakthroughs in this field of research has been the recognition that wind variability is cyclical in nature. This suggests that stellar rotation is an important piece in the unsolved puzzle of the wind-variability mechanism. The current idea is that Corotating Interacting Regions (CIRs) are responsible for the observed wind variability. These conclusions are based on detailed and extensive monitoring of ultraviolet resonance lines formed throughout the stellar wind, and subordinate lines like Hα which probe the regions close to the star.

Type
Section III Variable Winds
Information
International Astronomical Union Colloquium , Volume 169: Variable and Non-spherical Stellar Winds in Luminous Hot Stars , 1999 , pp. 193 - 200
Copyright
Copyright © Springer-Verlag 1999

References

Cranmer, S.R., Owocki, S.P. 1996, ApJ 462, 469 CrossRefGoogle Scholar
de Jong, J.A. 1998, in Proc. ESO workshop on Cyclical Variability in Stellar Winds, Eds. Kaper, & Pullerton, , p. 336 CrossRefGoogle Scholar
de Jong, J.A., Henrichs, H.F., Schrijvers, C., et al. 1998, submitted to A&AGoogle Scholar
Ebbets, D. 1982, ApJS 48, 399 CrossRefGoogle Scholar
Fullerton, A.W., Gies, D.R., Bolton, C.T. 1992, ApJ 390, 650 CrossRefGoogle Scholar
Fullerton, A.W., Gies, D.R., Bolton, C.T. 1996, ApJS 103, 475 CrossRefGoogle Scholar
Henrichs, H.F., Kaper, L., Nichols, J. 1994, A&A 285, 565 Google Scholar
Henrichs, H.F., De Jong, J.A., Nichols, J., et al. 1998, in Proc. “Ultraviolet astrophysics beyond the IUE final archive”, Eds. Wamsteker, , González, Riestra, Harris, (ESA SP-413), p. 157 Google Scholar
Howarth, I.D., Prinja, R. 1989, ApJS 69, 527 CrossRefGoogle Scholar
Howarth, I.D., Bolton, C.T., Crowe, R.A., et al., 1993, ApJ 417, 338 CrossRefGoogle Scholar
Kaper, L., Henrichs, H.F., Nichols, J., et al. 1996, A&A Supp. Ser. 116, 1 Google Scholar
Kaper, L., Henrichs, H.F., Fullerton, A.W., et al., 1997, A&A 327, 281 Google Scholar
Kaper, L., Henrichs, H.F., Nichols, J., Telting, J.H. 1998a, submitted to A&AGoogle Scholar
Kaper, L., Fullerton, A.W., Baade, D., et al. 1998b, in preparationGoogle Scholar
Massa, D., Fullerton, A.W., Nichols, J.S., et al. 1995, ApJ, 452, L53 Google Scholar
Mullan, D.J. 1984, ApJ 283, 303 CrossRefGoogle Scholar
Mullan, D.J. 1986, A&A 165, 157 Google Scholar
Prinja, R.K. 1988, MNRAS 231, 21P CrossRefGoogle Scholar
Prinja, R.K., Howarth, I.D. 1988, MNRAS 233, 123 CrossRefGoogle Scholar
Prinja, R.K., Balona, L.A., Bolton, C.T. et al. 1992, ApJ 390, 266 CrossRefGoogle Scholar
Stahl, O., Kaufer, A., Rivinius, Th., et al. 1996, A&A 312, 539 Google Scholar
Thaller, M. 1997, ApJ 487, 380 CrossRefGoogle Scholar