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Table 2.
Electron capture timescale and accretion timescale for the first electron capture for the four pairs in the outer crust made of 56Fe ashes.
| Reaction | τec (in s) | τacc (in s) |
|---|---|---|
| Z = 26 → 25 | 8.67 × 106 | 9.50 × 107 |
| Z = 24 → 23 | 1.37 × 104 | 2.40 × 109 |
| Z = 22 → 21 | 7.34 × 103 | 1.21 × 1010 |
| Z = 20 → 19 | 1.59 × 105 | 5.67 × 1010 |
Notes. The accretion timescale is calculated for a 1.4M⊙ neutron star mass and 11km radius considering a constant accretion rate of 10−8M⊙ per year.
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