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Table 1

Average masses accreted by the first-formed WDs in all DD progenitor systems, split by donor type.

Standard Upper limit
SeBa case: case:
Donor stellar ΔM/SN ΔM/SN
type [M] [M]

Main sequence star 0.0 5.98 ×10-5
Herzsprung gap star 0.0 2.61 ×10-5
First giant branch star 7.14 ×10-5 2.87 ×10-5
Core He-burning star 0.0 1.81 ×10-4
Asymptotic giant branch star 0.0 3.91 ×10-5
He-star 4.98 ×10-5 2.31 ×10-3
He-giant star 8.54 ×10-2 1.17 ×10-1
Total, all types 8.55 ×10-2 1.19 ×10-1

τaccr [yr] 3.5 ×104 4.9 ×104
Naccr (1010LB, ⊙ galaxy) 1.0 ×102± 10 1.5 ×102± 12

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