Fig. E.58
The temperature of VFTS 1018 (O3 III(f*) + mid/late O) is based on the lines N iii λ4634/4640, N iv λ4058, and He i λ4471. Unfortunately, the resolution and S/N of the HST observation is very low and Ṁ is based on the lines N iv λ4058, He ii 2.19 μm, and 
. The two near-IR lines are not in emission, which leads to an uncertainty in Ṁ and He-abundance. The star is N enriched. (Second panel: HST/FOS, third panel: ARGUS).
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