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Fig. 6


Terminal wind velocities ν from Hamann et al. (2006), Hainich et al. (2014). Empirical values for single, H-free WN stars in the Galaxy (blue) and LMC (grey) are indicated as a function of the escape velocity νesc. Dashed lines indicate relations with ν/ νesc = 1.3 and ν = 1800 km s-1.

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