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Dust formation around WC stars

Published online by Cambridge University Press:  07 August 2017

P. M. Williams
P. M. Williams*
Affiliation:
Royal Observatories, Edinburgh, U.K.

Abstract

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The presence of heated circumstellar dust around WC type Wolf-Rayet stars is reviewed in terms of the episodic or persistent condensation of carbon grains in their stellar winds. At present, 19 WC stars are known to form dust persistently and 7 episodically. Infrared spectroscopy suggests that the grains are amorphous rather than graphitic carbon. The properties of the stars which make dust episodically are reviewed in terms of processes in colliding winds in WR binary systems and the possible applicability of these processes to the stars which make dust persistently in examined.

Keywords

stars: WCindividual: WR140circumstellar grains
Type
Session VI - Dust formation near Wolf-Rayet stars and other circumstellar phenomena
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 335 - 345
Copyright
Copyright © Kluwer 1995 

References

Allen, D.A., Harvey, P.M., Swings, J.P. 1972, A&A 20, 333 Google Scholar
Allen, D.A., Barton, J.R., Wallace, P.T. 1981, MNRAS 196, 797 Google Scholar
Annuk, K. 1991, in: van der Hucht, K.A. & Hidayat, B.B., Wolf-Rayet Stars and Interrelations with Other Massive Stars in Galaxies, Proc. IAU Symp. No. 143 (Dordrecht: Kluwer), p. 245 Google Scholar
Cohen, M., Barlow, M.J., Kuhi, L.V. 1975, A&A 40, 291 Google Scholar
Cohen, M., Kuhi, L.V. 1977, MNRAS 180, 37 Google Scholar
Cohen, M., Tielens, A.G.G.M., Bregman, J.D. 1989, ApJ (Letters) 344, L13 CrossRefGoogle Scholar
Cohen, M., van der Hucht, K.A., Williams, P.M., The, P.S. 1991, ApJ 378, 302 CrossRefGoogle Scholar
Danks, A.C., Dennefeld, M., Wamsteker, W.M., Shaver, P.A. 1983, A&A 118, 301 Google Scholar
Draine, B.T. 1984, ApJ (Letters) 277, L71 CrossRefGoogle Scholar
Dyck, H.M., Simon, T., Wolstencroft, R.D. 1984, ApJ 277, 675 Google Scholar
Gehrz, R.D., Hackwell, J.A., 1974, ApJ 194, 619 Google Scholar
Glasse, A.C.H., Towlson, W.A., Aitken, D.K., Roche, P.F. 1986, MNRAS 220, 185 CrossRefGoogle Scholar
Golombek, D.A. 1983, PhD thesis, University of Buenos Aires Google Scholar
van der Hucht, K.A., Conti, P.S., Lundström, I., Stenholm, B. 1981, Sp. Sci. Rev. 28, 227 CrossRefGoogle Scholar
Roche, P.F., Aitken, D.K. 1984, MNRAS 208, 481 Google Scholar
Smith, L.F., Aller, L.H. 1971, ApJ 164 275 CrossRefGoogle Scholar
Smith, L.F., Shara, M.M., Moffat, A.F.J. 1990, ApJ 348, 471 CrossRefGoogle Scholar
Underhill, A.B. 1992, ApJ 398, 636 Google Scholar
Usov, V.V. 1991, MNRAS 252, 49 Google Scholar
Williams, P.M., Longmore, A.J., van der Hucht, K.A., Talavera, A., Wamsteker, W.M., Abbott, D.C., Telesco, C.M. 1985, MNRAS 215, 23P Google Scholar
Williams, P.M., van der Hucht, K.A., The, P.S. 1987a, A&A 182, 91 (WHT) Google Scholar
Williams, P.M., van der Hucht, K.A., The, P.S. 1987b, QJRAS 28, 248 Google Scholar
Williams, P.M., van der Hucht, K.A., Pollock, A.M.T., Florkowski, D.R., van der Woerd, H., Wamsteker, W.M. 1990a, MNRAS 243, 662 (W90) Google Scholar
Williams, P.M., van der Hucht, K.A., The, P.S., Bouchet, P. 1990b, MNRAS 247, 18P Google Scholar
Williams, P.M., van der Hucht, K.A., Bouchet, P., Spoelstra, T.A.Th., Eenens, P.R.J., Geballe, T.R., Kidger, M.R., Churchwell, E.B. 1992, MNRAS 258, 461 Google Scholar
Williams, P.M., van der Hucht, K.A., Kidger, M.R., Geballe, T.R., Bouchet, P. 1994, MNRAS 266, 247 Google Scholar
Williams, P.M., van der Hucht, K.A. 1994, in: Sterken, C. & de Groot, M.J.H. (eds), The impact of Long-term Monitoring on Variable-Star Research, NATO ASI Conf. Series C436 (Dordrecht, Kluwer), p. 85 Google Scholar
Zubko, V.G., Marchenko, S.V., Nugis, T. 1992, A&A Transactions , 3, 131 Google Scholar