Table 1
Relative rates averaged over a Hubble time for theoretically predicted explosion scenarios that may lead to SNe Ia.
| SN Ia progenitor scenario | Rel. rate |
|
|
|
| CO+CO mergers (all) | 1.0 |
| CO+CO mergers (primary mass >0.9 M⊙)* | 0.27 |
| ONe+X mergers (all)* | 0.04 |
| ddet (CO primary, all) | 0.86 |
| ddet (CO primary mass >0.9 M⊙)* | 0.37 |
| ddet (ONe primary; all)* | 0.03 |
| Chandrasekhar-mass CO WD (SD) | 0.01 |
| accretion-induced collapse in ONe WD (AIC) | 0.02 |
Notes. Data are extracted from the P-MDS model of Ruiter et al. (2014). All values have been normalized to the number of carbon-oxygen WD mergers (full mass range). The double-detonation systems are denoted by ddet. The accretion induced collapse systems arise from ONe WDs that collapse to a neutron star as they approach MCh while accreting stably from a stellar companion. Entries marked with an asterisk are the systems for which we show delay times in Fig. 1.
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