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Fig. 5

image

Mass shell plots for two models. Pink represents where more than 1% of the available Si has condensed, and indicates the presence of dust. Left: standard model Δφp = 0.0, Δφs = 0.0; dust forms just behind the shock wave, where the density is high, leading to efficient wind driving. Right: model Δφp = 0.4, Δφs = 0.0, with poor wind driving. Dust forms when matter is falling back onto the star, in a low-density region, resulting in significantly less matter condensing into dust, and therefore less material is accelerated in the wind.

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