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Fig. 5

image

Normalized VLT-FLAMES blue optical spectra (blue solid) for the O star N206-FS 64 (upper panel) and the B star N206-FS 221 (lower panel), respectively. Over-plotted are the synthetic PoWR model spectra (red dashed). The stellar parameters of these best fitting models are given in each panel. The observed spectra are contaminated with nebular emission lines as indicated by “(neb)”.

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