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Fig. 4
Equivalent width of N ivλ4058 as a function of Teff for models with [N] = 7.78 (black) and [N] = 9.0 (red). All models correspond to log g = 4.0 and Z = Z⊙, with mass-loss rates according to series “A” (solid) and “E” (dashed). See text.
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