Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-24T12:56:30.013Z Has data issue: false hasContentIssue false
  • English
  • Français

Line profile variations in WR + collapsed companion systems

Published online by Cambridge University Press:  07 August 2017

Gloria Koenigsberger
Gloria Koenigsberger*
Affiliation:
Institute de Astronomía, UNAM, Mexico

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 existence of Wolf-Rayet binary systems containing a collapsed companion is predicted on evolutionary grounds. However, because of the absence of strong X-ray emission and the difficulty in obtaining consistent periodicities from the observed variations, none of the “classical” WR stars has been shown to be a WR+cc system. A discussion is presented of the line-profile variations which are predicted to occur on orbital timescales due to the interaction of the WR wind with the cc. We note the importance of numerical simulations of the flow structure of the WR wind in the vicinity of a collapsed companion for deriving diagnostic tools for the presence of a cc in a WR system.

Keywords

stars: Wolf-Rayetbinariesline profilesindividual: HD 50896
Type
Session VIII - Hydrodynamics and high-energy physics of winds accreting on neutrons stars and black holes
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 538 - 546
Copyright
Copyright © Kluwer 1995 

References

Auer, L.H., Koenigsberger, G 1994, ApJ in press Google Scholar
Blondin, J.M., Kallman, T.R., Fryxell, B.A., Taam, R.E. 1990, ApJ 356, 591 Google Scholar
Buff, J. and McCray, R.A. 1974, ApJ 189, 147 Google Scholar
Cherepashchuk, A.M., Aslanov, A.A. 1984, Ap Space Sci. 102, 97 Google Scholar
Davidson, K., Ostriker, J.P. 1973, ApJ 179, 588 CrossRefGoogle Scholar
Dupree, A., Willis, A.J., van den Heuvel, E.P.J, et al. 1978, Nature 275, 400 Google Scholar
Firmani, C., Koenigsberger, G., Bisiacchi, G.F., Moffat, A.F.J., Isserstedt, J. 1980, ApJ 239, 607 Google Scholar
Hammerschlag-Hensberge, G. 1980, in: Proc. 2nd Eur. IUE Conf., ESA SP-157 , p. lix Google Scholar
Hatchett, S.P., McCray, R. 1977, ApJ 211, 552 Google Scholar
Hatchett, S.P., Buff, J. and McCray, R.A. 1976, ApJ 206, 847 Google Scholar
van den Heuvel, E.P.J., Heise, J. 1972, Nature 239, 67 Google Scholar
van der Hucht, K.A., Conti, P.S., Lundström, I., Stenholm, B. 1981, Sp. Sci. Rev. 28, 227 Google Scholar
Ishii, T., Matsuda, T., Shima, E., Livio, M., Anzer, U., Börner, G. 1993, ApJ 404, 706 CrossRefGoogle Scholar
Kallman, T.R., McCray, R. 1982, ApJ Suppl. 50, 263 Google Scholar
van Kerkwijk, M.H., Charles, P.A., Geballe, T.R., King, D.L., Miley, G.K., Molnar, L.A., van den Heuvel, E.P.J., van der Klis, M., van Paradijs, J. 1992, Nature 355, 703 Google Scholar
Koenigsberger, G. 1978, Tesis de Lic., Fac. Ciencias, UNAM Google Scholar
Koenigsberger, G. 1988, Rev. Mexicana Astron. Astrof. 16, 85 Google Scholar
Koenigsberger, G. 1990, A&A 235, 282.Google Scholar
Koenigsberger, G., Auer, L.H. 1992, in: Drissen, L., Leitherer, L.C., & Nota, A. (eds.), Nonisotropic and Variable Outflows from Stars, ASP Conf. Series 22, 239.Google Scholar
Livio, M., Soker, N., Matsuda, T., Anzer, U. 1991, MNRAS 253, 633 Google Scholar
Lucy, L.B., Abbott, D.C. 1993, ApJ 405, 738 Google Scholar
Matthews, J.M., St-Louis, N., Moffat, A.F. J., Drissen, L., Koenigsberger, G., Cardona, O., Niemela, V.S. 1992, in: Drissen, L., Leitherer, L. C., & Nota, A. (eds.), Nonisotropic and Variable Outflows from Stars, ASP Conf. Series 22, 130 Google Scholar
Matsuda, T., Inoue, M., Sawada, K. 1987, MNRAS 226, 785 Google Scholar
Moffat, A.F.J. 1982, in: de Loore, C.W.H. & Willis, A. J. (eds.), Wolf-Rayet Stars, Observations, Physics, Evolution, Proc. IAU Symp. No. 99 (Dordrecht: Reidel), p. 263 Google Scholar
Rumpl, W.M. 1980, ApJ 241, 1055 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
Smith, L.J., Lloyd, C. Walker, E.N. 1985, A&A 146, 307 Google Scholar
Springmann, U. 1994, A&A in press Google Scholar
St-Louis, N., Smith, L.J., Stevens, I.R., Willis, A.J., Garmany, C.D., Conti, P.S. 1989, A&A 226, 249 Google Scholar
St-Louis, N., Howarth, I.D., Willis, A.J., Stickland, D.J., Smith, L.J., Conti, P.S., Garmany, C.D. 1993, ApJ 267, 447 Google Scholar
Stella, L., White, N.E., Rosner, R. 1986, ApJ 308, 669 Google Scholar
Stevens, I.R., Willis, A.J. 1988, MNRAS 234, 783 Google Scholar
Taam, R.E., Fryxell, B.A. 1988, ApJ (Letters) 327, L73 Google Scholar
Tarter, L.B., McKee, C.F. 1973, ApJ (Letters) 186, L63 Google Scholar