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Table 3
Fit parameter a of Eq. (2) for the different cases for the energy production from Table 2.
| Case | a |
|
|
|
| Stellar winds at low metallicity, [Fe/H] = −1.5 | 1.23 |
| Stellar winds at solar metallicity | 0.368 |
| Normal supernovae, E0 = 1051 erg | 0.337 |
| Hypernovae, E0 = 1052 erg | 0.0554 |
| Hypernovae, E0 = 1053 erg | 0.0110 |
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