Fig. 5.
Close-up view of the Si IV doublet lines at 1393.73 and 1402.73 Å, as well as the Si III line at 1417.24 Å. Color coding is the same as in Fig. 1, the observational data now having their statistical error bars added. Lower panel: illustrates the difference between the data and the two models in units of 1σ, horizontal dashed lines indicating the ±2σ level.
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