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Interacting stellar winds in a binary system

Published online by Cambridge University Press:  12 April 2016

Sun Kwok
Sun Kwok*
Affiliation:
Herzberg Institute of Astrophysics N.R.C., Ottawa, Canada

Extract

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It is now known that strong stellar winds develop in stars mostly at the red and blue sides of the HR diagram. However, although the mass loss rates observed in O and M stars are comparable, the corresponding wind velocities are vastly different. It would thus be of great interest to find a binary system, containing both a cool and a hot star each with its own wind, and observe the resultant interaction. For a long time, α Sco (M1.5 Iab + B2.5 V) was the only known example (Kudritzki and Reimers 1978, van der Hucht et al. 1980). The situation in this case is best illustrated by a VLA map made by Gibson (1979) who finds that a shock develops at the surface of interaction of the two winds. In this paper I shall describe another binary system in which two stellar winds are interacting with dramatic effects.

Type
Session VIII - Effects of Mass Loss on the Evolution of Binary Stars
Information
International Astronomical Union Colloquium , Volume 59: Effects of Mass Loss on Stellar Evolution , 1981 , pp. 499 - 502
Copyright
Copyright © Reidel 1981

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