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Fig. 7.

image

Simulated images of Ca II 8542 Å, Ca II K, Mg II k, and Hα from the model atmosphere in vertically emergent intensity. Top row: at nominal line center, Δλ = 0 Å. Bottom row: at wavelengths corresponding to the maximum formation height, maxz(τ = 1). Intensity is expressed as brightness temperature Tb and is clipped to same ranges in each column: 3.6–7 kK for Ca II 8 542 Å, 3.6–7 kK for Ca II K, 3.6–8 kK for Mg II k, and 3.6–10 kK for Hα. The minimum, maximum, and average Tb for the entire FOV is provided in a label above each panel. Colored symbols indicate the following structures: a dark fibril (red dot) and a flare ribbon (blue dot), see Fig. 4; an active region in emission (orange cross), see Fig. 12; an active region in emission with a strong velocity gradient (blue cross), see Fig. 13; a sunspot (green cross), see Fig. 14; a fibril (red cross), see Fig. 15.

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