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Fig. E.30

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The temperature of VFTS 506 (ON2 V((n))((f*))) is based on the lines N iiiλ4634/4640, N ivλ4058, and N v λ4604/4620. The model temperature is slightly too low. is based on the line shape of He iiλ4686. log g might be a bit higher, because the observations are a bit broader than the model. The star is fast rotating. N-abundance is between normal and enriched.

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