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3D-hydrodynamics of colliding winds in massive binaries

Published online by Cambridge University Press:  26 May 2016

Rolf Walder  and
Doris Folini
Rolf Walder
Affiliation:
Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Doris Folini
Affiliation:
Observatoire de Strasbourg, F-67000 Strasbourg, la France

Abstract

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The pinwheel nebulae observed in some WC-binaries essentially mirror a transport phenomenon. We show the importance of the central wind collision zone in setting the ‘initial conditions’ for this transport. In order to understand some of the newly observed features, we postulate that standard theory of colliding flows must be extended by considering radiative breaking, heat-conduction, and the clumped character of the winds. We suggest that clumped winds can be modeled by highly compressible turbulence and outline some consequences for the physics of the wind collision zone. With regard to dust production we argue that the system center is the only location where dust nucleation can happen.

Type
Part 1. Atmospheres of Massive Stars
Information
Symposium - International Astronomical Union , Volume 212: A Massive Star Odyssey: From Main Sequence to Supernova , 2003 , pp. 139 - 147
Copyright
Copyright © Astronomical Society of the Pacific 2003 

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