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Table 5

Ratio of CN-strong and CN-weak stars and centroids distance.

Cluster n CNstrong n CNweak r CN δ r CN ΔCN δΔCN

NGC 104 33 31 1.06 0.27 0.209 0.051
NGC 288 60 69 0.87 0.15 0.088 0.023
NGC 362 22 9 2.44 0.97 0.063 0.070
NGC 1851 18 25 0.72 0.22 0.069 0.026
NGC 5927 20 23 0.87 0.27 0.244 0.085
NGC 6352 10 14 0.71 0.30 0.232 0.075
NGC 6388 10 12 0.83 0.36 0.270 0.139
NGC 6656 26 30 0.87 0.23 0.030 0.031
NGC 6752 19 36 0.53 0.15 0.063 0.018
NGC 6809 27 24 1.13 0.31 0.037 0.025
NGC 7078 16 16 1.00 0.35 0.080 0.056
Pal 12 14 9 1.56 0.66 0.115 0.063

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