a) Intensity profiles (synthetic spectra) of Ca ii H line for three atmospheric models (see text). The dashed curve represents the transmission profile of the Sunrise/SuFI Ca ii H filter. b) Results of the convolution of the spectra with the transmission profile shown in panel a). c) Line depression contribution functions for the Sunrise/SuFI Ca ii H bandpass vs. height. The vertical lines indicate the corresponding average heights formation. Red, green and blue lines in all panels represent the FALC, FALF and FALP model atmospheres.
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