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The theory of winds in early type stars

Published online by Cambridge University Press:  12 April 2016

A.G. Hearn
A.G. Hearn*
Affiliation:
Sterrekundig Instituut, Utrecht, The Netherlands

Extract

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I assume that the purpose of this review of the theory of winds from early type stars is to summarize the way in which the mass loss rate of a star may be included in a calculation of stellar evolution. Let me summarize my conclusions. It is not possible. One can only use estimates of mass loss rates obtained from the observations. Even these give a large uncertainty. The observed mass loss rates for different stars of the same spectral type vary. Further the mass loss rates obtained by different methods for the same star differ. An extreme example of this is 9 Sgr. The mass loss rate derived from the radio observations is forty times greater than that derived from the U.V. and optical measurements (Abbott et al. 1980).

Type
Session III - Winds From Early Type Stars: Theory
Information
International Astronomical Union Colloquium , Volume 59: Effects of Mass Loss on Stellar Evolution , 1981 , pp. 125 - 130
Copyright
Copyright © Reidel 1981

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