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Table 5

Average values of abundance ratios of the different groups resulting from the cluster analysis in 47 Tuc and M 4.

47 Tuc: 2 groups

group nr [N/Fe] [O/Fe] [Na/Fe] [Mg/Fe] [Al/Fe]

1 41 +0.98 ± 0.02 +0.26 ± 0.01 +0.36 ± 0.02 +0.52 ± 0.01 +0.45 ± 0.01
2 38 +1.11 ± 0.01 +0.00 ± 0.02 +0.59 ± 0.02 +0.52 ± 0.01 +0.64 ± 0.01

47 Tuc: 3 groups

1 19 +0.87 ± 0.01 +0.31 ± 0.02 +0.28 ± 0.02 +0.51 ± 0.02 +0.40 ± 0.01
2 22 +1.06 ± 0.02 +0.22 ± 0.02 +0.42 ± 0.01 +0.52 ± 0.02 +0.49 ± 0.01
3 38 +1.11 ± 0.02 +0.00 ± 0.01 +0.59 ± 0.02 +0.52 ± 0.01 +0.64 ± 0.01

M 4: 2 groups

group nr [N/Fe] [O/Fe] [Na/Fe] [Mg/Fe] [Al/Fe]

1 13 +0.88 ± 0.01 +0.35 ± 0.02 +0.10 ± 0.02 +0.55 ± 0.01 +0.58 ± 0.03
2 54 +1.12 ± 0.03 +0.19 ± 0.03 +0.45 ± 0.03 +0.54 ± 0.01 +0.77 ± 0.02

M 4: 3 groups

1 13 +0.88 ± 0.01 +0.35 ± 0.02 +0.10 ± 0.02 +0.55 ± 0.01 +0.58 ± 0.03
2 24 +1.21 ± 0.01 +0.26 ± 0.02 +0.42 ± 0.02 +0.53 ± 0.01 +0.73 ± 0.03
3 30 +1.05 ± 0.02 +0.13 ± 0.03 +0.47 ± 0.03 +0.55 ± 0.01 +0.80 ± 0.02

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