Fig. 4
Mass-loss rate versus stellar luminosity for the sample stars. For comparison we show Arches WNL stars from Martins et al. (2008, labeled with F and B numbers), WR102c and WR102ka from Barniske et al. (2008) and Galactic WN stars (Hamann et al. 2006, open symbols). The solid lines refer to the mass loss-luminosity relation of Nugis & Lamers (2000) for hydrogen-free stars (green upper line) and stars containing 40% hydrogen per mass (red lower line).
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