Fig. 5.
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Examples of a couple of spectral windows used to derive Ca. Top: spectral window containing a number of Ca I lines ranging from 5261.0–5266.0 Å with the presence of other elements such as Fe I, Ti I, and Cr I. Bottom: spectral region of Ca I lines at 5588.7 Å and 5590.1 Å. The best-fit model is in red and the observed spectrum is in grey.
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