Abundances of refractory ions in Beta Pictoris exocomets

Open Access

Fig. A.1

Estimates of the Ca II/Ca II(top), Fe II/Fe II (middle), and Al II/Al II(bottom) ratios of the studied exocomets, using Eq. A.1 and the measured Al III/Fe II ratios. Error bars reflect uncertainties on the measured Al III/Fe II ratios, and on the fixed parameters of Eq. A.1 (see Table 2).

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