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Influence of decoupling effect on stellar wind variability

Published online by Cambridge University Press:  12 July 2011

Viktor Votruba ,
Klára Šejnová ,
Pavel Koubský  and
Daniela Korčáková
Viktor Votruba
Affiliation:
Stellar Department, Astronomical Institute AV ČR, v.v.i., Fričova 298, Ondřejov 25165, Czech Republic; email: [email protected] Institute of Theoretical Physics and Astrophysics, Masaryk University, Faculty of Natural Science, Kotlářská 2, Brno 61137, Czech Republic; email: [email protected]
Klára Šejnová
Affiliation:
Institute of Theoretical Physics and Astrophysics, Masaryk University, Faculty of Natural Science, Kotlářská 2, Brno 61137, Czech Republic; email: [email protected]
Pavel Koubský
Affiliation:
Stellar Department, Astronomical Institute AV ČR, v.v.i., Fričova 298, Ondřejov 25165, Czech Republic; email: [email protected]
Daniela Korčáková
Affiliation:
Stellar Department, Astronomical Institute AV ČR, v.v.i., Fričova 298, Ondřejov 25165, Czech Republic; email: [email protected]
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Abstract

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A detailed investigation of momentum transfer in radiatively driven stellar winds shows that for the thin wind case ion decoupling may occur. The decoupling of absorbing ions significantly affects dynamics of the wind. We analysed such effects using our hydrodynamic code and predicted spectral changes with the help of the SHELLSPEC code.

Keywords

stars: windsoutflowsstars: oscillations (including pulsations)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 218 - 219
Copyright
Copyright © International Astronomical Union 2011

References

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