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Table 5
Mean spectro-photometric properties of the low (s < 1.013) and high (s ≥ 1.013) stretch SNe Ia samples used to build the VLT five year composite spectra.
| s < 1.013 | s ≥ 1.013 | |
|---|---|---|
| Nb spec | 34 | 37 |
| ⟨z⟩ | 0.63 ± 0.03 | 0.61 ± 0.03 |
| ⟨Φ⟩ | 0.0 ± 0.4 | 0.6 ± 0.3 |
| ⟨c⟩ | − 0.033 ± 0.014 | − 0.029 ± 0.016 |
| ⟨s⟩ | 0.961 ± 0.007 | 1.061 ± 0.007 |
 |
23.948 ± 0.040 | 23.903 ± 0.044 |
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