Terminal wind velocities ν∞ vs. escape velocities νesc for our sample of WC/WO stars. Symbols are the same as in Fig. 3. Typical uncertainties are of the order Δν∞ = ± 10% and Δνesc = ± 15%. The grey dashed line indicates the relation with ν∞/νesc = 1.6 as adopted for our artificial model sequence.
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