Fig. E.37
VFTS 542 (O2 If*/WN5): the second (ARGUS) and third (MEDUSA) panel cover the same wavelength range and the spectra are similar (except for the degree of the nebular contamination). The temperature is based on the lines N iii λ4634/4640, N iv λ4058, and N v λ4604/4620. Ṁ and He-abundance are based on the lines He ii λ4686, Hα, He ii 2.19 μm, and 
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