Spectroscopic and evolutionary analyses of the binary system AzV 14 outline paths toward the WR stage at low metallicity

Open Access

Fig. 9.

Close-up view of the O IV multiplet in the X-shooter spectrum of the WR star SMC AB 4. The observed spectrum is shown as a blue solid line, the synthetic spectra are calculated with an oxygen abundance of X_O = 2 × 10⁻⁵ and X_O = 20 × 10⁻⁵ and are shown as green dotted and red dotted lines, respectively.

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