Fig. 10
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[OI] λ6300 lines FWHM (top) and peak velocity (bottom) as a function of projected separation from σ-Ori for MIKE sources. The colors represent the type of Gaussian components as explained in Sect. 4.2. The vertical dotted line is positioned at 0.8 pc (see text for details). The horizontal line indicates the systemic stellar velocity (0 km/s).
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