Source abundances in GCR (filled circles) and in the particles accelerated in the mass MAcc of Fig. 6 (open squares). They are normalised to the abundance of hydrogen and expressed in the corresponding solar units: . By construction, the 22Ne/20Ne ratio – unaffected by atomic affects – matches the GCR source value. For He, C, N and O, a correction factor (simulating atomic effects) Rcor = fGCR/fMACC is calculated and applied to the accelerated composition of MACC at all metallicities (see bottom panel of Fig. 9).
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