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Table 1

Epoch of pEW measurements: testing the level of correlation between Fe ii 5018 Å pEWs and host H ii-region abundances when different epochs for pEW measurements are used.

Epoch N SNe II r p

Days after explosion epoch
30 90 0.30 ± 0.09 4.7%
40 83 0.32 ± 0.09 3.6%
50 82 0.35 ± 0.09 1.8%
60 75 0.30 ± 0.11 10.3%
70 68 0.38 ± 0.10 2.1%

With respect to ttran
+20 39 0.24 ± 0.16 63%
Same sample but at 50 d
50 39 0.30 ± 0.15 36%

With respect to OPTd
–30 55 0.34 ± 0.11 9.1%
Same sample but at 50 d
50 55 0.35 ± 0.11 7.8

Notes. In the first column the epoch is listed, followed by the number of SNe II available in Col. 2. The Pearson’s mean r value is then given together with the standard deviation. Finally in Col. 4 the chance probability of finding a correlation is listed.

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