Fitted mass-loss relation for the complete Arches sample, under the assumption of chemical homogeneity (Eq. (15), red dotted line). Symbols are the same as in Fig. 3. The observed mass-loss rates are scaled to a temperature of log (T _⋆ /K) = 4.5, based on the temperature dependence in Eq. (15), with Ṁ ∝ T^-4.116. For comparison, we plot the relation by Gräfener & Hamann (2008) for the same temperature, log (L) = 6.3, X_H = 0.7, and Z = Z_⊙ (black solid), as well as Z = Z_⊙ (grey solid).