Forbidden Line Profiles from Massive Binary Colliding Winds

Details Forbidden Line Profiles from Massive Binary Colliding Winds Forbidden Line Profiles from Massive Binary Colliding Winds

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jsara...1...28b&link_type=abstract

Journal of the Southeastern Association for Research in Astronomy, vol= . 1, p. 28-31

Astronomy and Astrophysics

Astronomy

1

Stars, Winds: Outflows, Wolf Rayet

Scientific paper

We investigate the effects on the emission profile of a Wolf-Rayet (WR= ) wind colliding with an O star wind. Since the mass loss rate of the WR star far exceeds that of the O star, the O star effectively forms a cavit= y in the WR wind. The cavity takes on a spiral shape as the O star orbits the WR. This cavity produces interesting observable effects in the emission profiles of forbidden lines. We model the effects of a spiral cavity on the emission profile for both circular and elliptical binary orbits. The presence of a cavity leads to a deficit in the otherwise flat-top profile. The opening angle of the cavity, viewing inclination o= f the binary, and eccentricity of the orbit govern the profile shape.

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