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Two Possible Wind Models for Wolf-Rayet stars

Published online by Cambridge University Press:  04 August 2017

T. Nugis
T. Nugis*
Affiliation:
W. Struve Astrophysical Observatory of Tartu Estonia, USSR

Extract

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Frequently the models proposed to explain some observational data are in conflict with the other observational data. Our purpose was to find out the empirical models of the envelopes of WN5 and WN6 stars which are not in conflict with the continuum runs in the IR spectral region and with the emission line intensities and profiles. In our recent study (Nugis, 1984) we proposed for Wolf-Rayet stars the spherically symmetric outflow model having an increasing velocity zone (with some coronal heating near the stellar surface) which is followed by the decreasing velocity zone extending up to the distance where the matter starts flowing with constant velocity. Let us call this model the AD-model (Acceleration-Deceleration).

Type
Poster Papers 2
Information
Symposium - International Astronomical Union , Volume 116: Luminous Stars and Associations in Galaxies , 1986 , pp. 223 - 224
Copyright
Copyright © Reidel 1986 

References

Castor, J.I., and Van Blerkom, D.: 1970, Astrophys. J. 161, 485.Google Scholar
Nugis, T.: 1984, Tartu Astrofúús. Obs. Publ. 50, 101.Google Scholar
Sobolev, V.V.: 1960, The Moving Envelopes of Stars. Cambridge, Harvard University Press.Google Scholar
Underhill, A.B.: 1983, Astrophys. J. 265, 933.CrossRefGoogle Scholar