Fig. 1
Intensity normalization and stray-light correction of the average Ca ii H profile. Thick black: LIEGE atlas profile. Thin red: normalized average observed profile Iraw,norm.. Thick orange dash-dotted: reference profile of the modified HSRA model. Thin blue: stray-light corrected average observed profile Icorr.,norm.. The black vertical line denotes the wavelength of intensity normalization.
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