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Fig. 8

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Equivalent widths, Wλ (normalized to the value for a saturated line), for the absorption part of the N v resonance line at 1240 Å, as functions of the product of the ionization fraction of Nv,  ⟨ q ⟩ , and the mass-loss rate. The solid line is calculated from smooth models and the dashed line from structured ones. The black dots denote Wλ’s for models corresponding to a smooth model with  ⟨ q ⟩  = 10-9, see text.

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