Table 1
Definition of the two ΣHα subgroups, and their respective weighted mean light-curve parameters.
| Label | Group | log (ΣHα) | SNe | ⟨ x1 ⟩ | ⟨ c ⟩ | 
[mag] |
p.m.s. |
|
|
|||||||
| Iaϵ | Locally passive | <38.35 | 41 | −0.29 ± 0.14 | 0.029 ± 0.010 | −0.039 ± 0.023 | 2 |
| Iaα | Locally star-forming | ≥38.35 | 41 | + 0.08 ± 0.10 | 0.065 ± 0.013 | + 0.056 ± 0.020 | 5 |
Notes. The “p.m.s.” column indicates the number of SNe with a potential misassociation of a Hα detection due to projection effects, which have been excluded from the main analysis.
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