The Infrared Environment of the Wolf-Rayet Star WR 134

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

Infrared data obtained with the IRAS satellite are used to study the immediate environment of the Wolf-Rayet star WR 134. In addition to an incomplete hemispherical dust shell of diameter 18 \am, a small-scale feature is seen projected inside the stellar wind bubble, at an angular separation of about 3 \am\ to the north and east of WR 134. Among the possible explanations for this feature, a model is proposed in which it is interpreted as the result of a bow shock interaction between the WR stellar wind and material blowing past the star and originating from the Cyg OB1/OB3 supershell, also quite conspicuous in the infrared.

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