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Colliding winds in Wolf-Rayet binaries: further developments within a complicated story

Published online by Cambridge University Press:  25 May 2016

Rolf Walder ,
Doris Folini  and
Simin M. Motamen
Rolf Walder
Affiliation:
Institut für Astronomie, ETH Zürich, Switzerland
Doris Folini
Affiliation:
Institut für Astronomie, ETH Zürich, Switzerland
Simin M. Motamen
Affiliation:
Seminar für Angewandte Mathematik, ETH Zürich, Switzerland

Abstract

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We present large scale 3D simulations of colliding winds in the WR binary γ2 Velorum (WR 11). The O-star wind is confined by cold, high density shells and forms a spirally shaped region within the WR-wind. As a consequence of the elliptic orbit, the opening angle and the curvature of the spiral as well as the ratio of the volumes occupied by the WR- and the O-wind are functions of the orbital phase. Our model qualitatively reproduces the observed X-ray light-curve. The impact of magnetic fields and heat conduction on the physics of colliding winds is briefly discussed and some remarks on the important question of stability are made.

Type
Part 3. Interaction of Wolf-Rayet stars and other hot massive stars with their environment: colliding winds and ring nebulae
Information
Symposium - International Astronomical Union , Volume 193: Wolf-Rayet Phenomena in Massive Stars and Starburst Galaxies , 1999 , pp. 298 - 305
Copyright
Copyright © Astronomical Society of the Pacific 1999 

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