Table 2
Statistics of correlations between Fe ii 5018 Å pEWs and SN II light-curve and spectral parameters. In the first column the SN II parameter is listed.
| LC/spec parameter | N SNe II | r | p |
|
|
|||
| M max | 77 | 0.64 ± 0.09 | ≤2.2 × 10-4% |
| Mend | 79 | 0.47 ± 0.11 | ≤0.11% |
| Mtail | 29 | 0.48 ± 0.14 | ≤7.1% |
| s1 | 20 | –0.48 ± 0.15 | ≤16% |
| s2 | 77 | –0.41 ± 0.13 | ≤1.4% |
| s3 | 24 | –0.50 ± 0.24 | ≤22% |
| 56Ni | 13 | –0.46 ± 0.23 | ≤45% |
| 56Ni* | 36 | –0.54 ± 0.10 | ≤0.72% |
| Pd | 17 | 0.26 ± 0.31 | ≤100% |
| OPTd | 24 | 0.12 ± 0.14 | ≤100% |
| a/e | 43 | 0.60 ± 0.10 | ≤0.064% |
| Hαvel | 24 | –0.61 ± 0.09 | ≤0.92% |
Notes. Mmax is the maximum V-band absolute magnitude; Mend the magnitude at the end of the “plateau”; Mtail the magnitude at the start of the radioactive tail; s1 the initial decline from maximum; s2 the decline rate during the “plateau”; s3 the decline rate of the radioactive tail; 56Ni the synthesised nickel mass, with 56Ni* including upper limit calculations; Pd the duration from the inflection point of s1 and s2 to the end of the “plateau”; OPTd the duration from explosion to the end of the “plateau”; a/e the ratio of the pEW of absorption to emission of Hα; and Hαvel the FWHM velocity of Hα. This is followed by the number of SNe II 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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