Fig. 9

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NUV spectral lines. Models 1401 (blue line), 1401a (orange dashed line), 1401b (purple dashed-dotted line), and 1401c (red dashed-double-dotted line) vs. (H&A) solar irradiance observations (black dotted line). New transitions 2780.65 Å are included in 85-level models 1401b and 1401c due to the incorporation of the 3p2 3P term.
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