Effects of wind interactions on double WR+O stars spectra

Details Effects of wind interactions on double WR+O stars spectra Effects of wind interactions on double WR+O stars spectra

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002pobeo..73..137e&link_type=abstract

Publications of the Astronomical Observatory of Belgrade (ISSN 0373-3742), No. 73, p. 137 - 141 (2002). In: Proceedings of the T

Astronomy and Astrophysics

Astronomy

Binaries, Wolf-Rayet Stars, Stellar Winds

Scientific paper

The phase dependent spectral variability of three WR+O binary system is discussed (WR79, WR155 and WR48). Three main effects are suggested to cause UV line profile variations. The line variability is found to be due mainly to the wind eclipse effect while the effects of the presence of wind-wind interaction region are less prominent but the absorbing O star wind is clearly detectable. It is suggested that in WR79 and WR155 the stagnation point is located so close to the O star surface that the front part of the O star wind does not reach its V∞. In WR48 there are no wind interaction effects detectable.

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