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Fig. 5

image

Local operator element Λ as a function of height for SA and FEA velocity profiles. The left panel shows 1−Λ for Lyα and Lyβ lines. The right panel shows Λ for Hα line. The figure is plotted for the default value of the Doppler broadening velocity km s-1. The black curve, corresponding to the right y-axis in both panels, shows the temperature profile of the FCHHT-B solar atmosphere model (Fontenla et al. 2009).

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