Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-26T08:24:53.287Z Has data issue: false hasContentIssue false

Spectropolarimetry and wind asymmetries of Wolf-Rayet stars

Published online by Cambridge University Press:  07 August 2017

Regina E. Schulte-Ladbeck*
Affiliation:
Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260, U.S.A.

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.

Motivated by the question of what drives the winds of Wolf-Rayet (WR) stars, I have been investigating the structure of WR winds. Observational evidence has been accumulated which demonstrates that the winds of some (but not all) WR stars are not spherically symmetric or homogeneous. I review results of work in the literature pertaining to the detection of such wind asymmetries in single WR stars and WR binary components. Particular emphasis is placed on the technique of spectropolarimetry, and how it has contributed to our knowledge of the wind-geometry of WR stars.

Type
Session III - Anisotropic mass loss, disk formation
Copyright
Copyright © Kluwer 1995 

References

Annuk, K. 1991, in: van der Hucht, K.A. & Hidayat, B. (eds.), Wolf-Rayet Stars and Interrelations with other Massive Stars in Galaxies, Proc. IAU Symp. No. 143 (Dordrecht: Kluwer), p. 245 Google Scholar
Aslanov, A.A., Cherepashchuk, A.M. 1990, Sov. Astron. 34, 602 Google Scholar
Bjorkman, J.E., Cassinlli, J.P. 1993, ApJ 409, 429 Google Scholar
Castor, J.I. 1979, in: Conti, P.S. & de Loore, C.W.H. (eds.), Mass Loss and Evolution of O-type Stars, Proc. IAU Symp. No. 83 (Dordrecht: Reidel), p. 175 Google Scholar
Castor, J.I., Abbott, D.C., Klein, R.I. 1975, ApJ 195, 157 Google Scholar
Chu, Y.-H. 1991, in: van der Hucht, K.A. & Hidayat, B. (eds.), Wolf-Rayet Stars and Interrelations with other Massive Stars in Galaxies, Proc. IAU Symp. No. 143 (Dordrecht: Kluwer), p. 349 Google Scholar
Crowther, P.A., Hillier, D.J., Smith, L.J. 1994 A&A submitted Google Scholar
Kuhi, L.V. 1973, in: Bappu, M.K.V. & Sahade, J. (eds.), Wolf-Rayet and High-Temperature Stars, Proc. IAU Symp. No. 49 (Dordrecht: Reidel), p. 205 Google Scholar
Lucy, L.B., Abbott, D.C. 1993, ApJ 405, 738 CrossRefGoogle Scholar
Lucy, L.B., Solomon, P.M. 1970, ApJ 159, 879 Google Scholar
Massey, P. 1980, ApJ 236, 526 Google Scholar
Mazzali, P.A. 1990, A&A 238, 191 Google Scholar
Owocki, S.P., Cranmer, S.R., Blondin, J.M. 1994, ApJ 424, 887 Google Scholar
Poe, C.H., Friend, D.B., Cassinelli, J.P. 1989, ApJ 337, 888 CrossRefGoogle Scholar
Prinja, R.K., Barlow, M.J., Howarth, I.D. 1990, ApJ 361, 607 Google Scholar
Poeckert, R., Marlborough, J.M. 1978, ApJ 220, 940 CrossRefGoogle Scholar
Robert, C. 1991, PhD thesis, Université de Montréal Google Scholar
Rumpl, W.M. 1980, ApJ 241, 1055 CrossRefGoogle Scholar
Schmid-Burgk, J. 1982, A&A 108, 169 Google Scholar
Schmutz, W. 1990, in: Willson, L. A. & Stalio, R., Angular Momentum and Mass Loss for Hot Stars, Nato ASI Series C 316 (Dordrecht: Kluwer), p.227 Google Scholar
Schulte-Ladbeck, R.E., Nordsieck, K.H., Nook, M.A., Magalhães, A.M., Taylor, M., Bjorkman, K.S., Anderson, C.M. 1990, ApJ (Letters) 365, L19 Google Scholar
Schulte-Ladbeck, R.E., Nordsieck, K.H., Taylor, M., Nook, M.A., Bjorkman, K.S., Magalhães, A.M., Anderson, C.M. 1991, ApJ 382, 301 Google Scholar
Schulte-Ladbeck, R.E., Nordsieck, K.H., Taylor, M., Bjorkman, K.S., Magalhães, A.M., Wolff, M.J. 1992, ApJ 387, 347 CrossRefGoogle Scholar
Schulte-Ladbeck, R.E., Meade, M.R., Hillier, D.J. 1992, in: Drissen, L., Leitherer, C. & Nota, A. (eds.), ASP Conf. Ser. 22, 118 Google Scholar
Schulte-Ladbeck, R.E. 1994, in: St.-Louis, N., Fullerton, A.W., Moffat, A.F.J. et al. (eds.), Instability and Variability of Hot-Star Winds, in press Google Scholar
Schulte-Ladbeck, R.E., Clayton, G.C., Hillier, D.J., Harries, T.J., Howarth, I.D. 1994, ApJ in press Google Scholar
Smith, L.J., Crowther, P.A., Prinja, R.K. 1994, A&A 281, 833 Google Scholar
St-Louis, N., Drissen, L., Moffat, A.F.J., Bastien, P. 1987, ApJ 322, 870 CrossRefGoogle Scholar
Underhill, A.B., Fahey, R.P. 1987a, ApJ 300, 379 Google Scholar
Underhill, A.B., Fahey, R.P. 1987b, ApJ 313, 358 Google Scholar
Underhill, A.B., Nemec, A.F.L. 1989, ApJ 345, 1008 Google Scholar
Underhill, A.B., Gilroy, K.K., Hill, G.M., Dinshaw, N. 1990, ApJ 351, 666 Google Scholar
Vreux, J.-M. Gosset, E., Bohannan, B., Conti, P.S. 1992, A&A 256, 148 Google Scholar