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Instabilities in colliding winds

Published online by Cambridge University Press:  07 August 2017

Rolf Walder  and
Doris Folini
Rolf Walder
Affiliation:
Insititut für Astronomie and Seminar für Angewandte Mathematik, ETH Zurich, Switzerland
Doris Folini
Affiliation:
Insititut für Astronomie and Seminar für Angewandte Mathematik, ETH Zurich, Switzerland

Abstract

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The significance of radiative cooling for the stability properties of colliding astrophysical flows is shown. In the cases of WR ring nebula NGC 6888 and WR binary V444 Cyg it is found that thermal instabilities in the radiative loss function A(T) Tβ, β = β(T) not only have an influence on the dynamics of the collision zone, but also that they lead to a quasi-periodic increase of the radiated energy.

Keywords

stars: hydrodynamicscolliding flowsthermal instabilityindividual: V444 CygNGC 6888
Type
Session VII - poster summaries
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 525 - 526
Copyright
Copyright © Kluwer 1995 

References

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Walder, R. 1993, PhD thesis, ETH Zurich Google Scholar