Colliding Winds in Binaries: Observations |
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Authors: | AFJ Moffat |
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Institution: | (1) Département de physique, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7, Canada, and Observatoire du mont Mégantic |
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Abstract: | Colliding winds in binaries are discussed mainly from an observational point of view. Collisions are especially energetic
in the case of hot, luminous stars, which drive strong, fast winds. Emphasis is therefore devoted to binaries containing Wolf-Rayet
stars. The subject is divided up into (1) continuum radiation (X-ray and non-thermal radio from the hot bow shock head, IR
from dust formed in some WC + O binaries far downstream in the collision shock cone) and (2) line radiation (optical and UV,
both from various regions downstream from the bow shock head). The latter is particularly useful in providing constraints
on the velocity field and hence ultimately the geometry of the wind collision and the binary system itself.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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