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On the modeling of outflowing envelopes of massive evolved stars at arbitrary optical depths

Published online by Cambridge University Press:  26 May 2016

Anton V. Dorodnitsyn  and
Gennadi S. Bisnovatyi-Kogan
Anton V. Dorodnitsyn
Affiliation:
Space Research Institute, Profsoyuznaya Str. 84/32, Moscow 117997, Russia
Gennadi S. Bisnovatyi-Kogan
Affiliation:
Space Research Institute, Profsoyuznaya Str. 84/32, Moscow 117997, Russia

Extract

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Mass loss due to outflow is one factor introducing uncertainty into our understanding of the evolution of massive stars. There is a need of a theory, that would make it possible to take into account mass loss in the process of evolutionary computations in a self-consistent way. It is currently clear that the role of outflow is extremely important for stellar evolution, but quantitative conclusions about mass-loss rates remain uncertain. The evolution of stars with masses M ≥ 15 M⊙ is accompanied by mass loss at rates reaching 10–4-10–6 M⊙ yr–1. This strongly influences the evolution of such stars in the supergiant stage.

Type
Part 2. Interiors of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 412 - 413
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Bisnovatyi-Kogan, G.S., Dorodnitsyn, A.V. 1999, A&A 344, 647.Google Scholar
Bisnovatyi-Kogan, G.S., Dorodnitsyn, A.V. 2001, Astron. Reports 45, 995.Google Scholar