Fig. 6.
Continuum-subtracted [O I] λ6300,6364 line profile fit. Two Gaussians (a blueshifted and a redshifted component) for each of the two lines (6300 and 6364 Å) were used. The normalization of the two lines was fixed so that the 6300 Å line has three times the flux of the 6364 Å line. The centroids of the corresponding components of the two lines were also fixed to be 64 Å apart.
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