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UV and optical spectroscopic observations of colliding winds in WR+O binaries

Published online by Cambridge University Press:  07 August 2017

Nicole St-Louis
Nicole St-Louis*
Affiliation:
Département de Physique, Université de Montréal C.P. 6128, Succ. Centre Ville, Montreal (Québec), H3C 3J7, Canada and Observatoire du Mont Mégantic

Abstract

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In this paper, a review of spectroscopic evidence for colliding wind effects in WR+O binaries is presented with a particular emphasis on variability at ultraviolet wavelengths. In the optical, evidence for colliding winds comes from extra emission formed in the region of shocked gas and superimposed on the strong emission lines formed in the WR wind. At ultraviolet wavelengths, we observe the consequences of the fact that between the two stars the winds are prevented from reaching their terminal velocity because of the wind-wind interaction.

Keywords

stars: Wolf-Rayetbinariescolliding winds
Type
Session VII - Hydrodynamics and high-energy physics of colliding winds
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 388 - 396
Copyright
Copyright © Kluwer 1995 

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