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Table 5

Distribution properties of the differences between the metallicity estimated from local measurements and the metallicity estimated using different proxies.

SN type Mean σ σ m Median N
12+log(O/H)local−total
Iaa 0.029 0.050 0.008 0.032 39
Ib/c 0.012 0.064 0.013 0.020 25
II 0.006 0.078 0.012 0.008 44
12+log(O/H)local−H II
Ia −0.004 0.035 0.006 0.001 39
Ib/c 0.007 0.037 0.007 −0.001 25
II 0.008 0.042 0.006 0.002 42
12+log(O/H)local−gradient
Ia −0.014 0.045 0.007 −0.007 39
Ib/c −0.003 0.041 0.008 −0.002 25
II 0.001 0.069 0.011 0.005 43
12+log(O/H)local−central
Ia −0.018 0.056 0.014 −0.026 16
Ib/c −0.024 0.077 0.018 −0.019 19
IIa −0.056 0.082 0.015 −0.082 31
12+log(O/H)local−central+gradient
Iaa 0.052 0.056 0.014 0.057 16
Ib/ca 0.043 0.077 0.018 0.036 19
II 0.020 0.071 0.013 0.003 31
log(Zm)local−total
Ia −0.004 0.150 0.023 −0.011 44
Ib/c 0.004 0.150 0.034 0.047 19
II 0.042 0.178 0.032 0.047 30
log(Zm)local−central
Iaa −0.086 0.185 0.028 −0.070 44
Ib/ca −0.083 0.131 0.030 −0.099 19
II −0.029 0.311 0.057 −0.024 30

Notes. Shown are the mean, the standard deviation σ, the standard deviation of the mean σm, the median and the number of SNe.

(a)

statistically significant difference.

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