Fig. 10
Ca ii 854.2 nm profiles emerging from the FALC model with perturbed temperatures. The left panels show a Gaussian temperature enhancement of 1000 K at various optical depths. In each panel, the colours represent different widths of the perturbation with blue and orange corresponding to Δlog τ = 0.4 and 0.6, respectively. The dashed line represents the unperturbed FALC atmosphere. The panels on the right are the corresponding intensity profiles calculated with NICOLE. The black dashed line shows the unperturbed profiles.
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