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Table 3

Parameter ranges used to determine the period-eccentricity distribution of the phase-dependent RLOF models and the CB-disk models.

Parameter Range

Binary
sdB progenitor mass (M) 1.0–1.50
companion massa (M) 0.8–1.45
period (d) 500–900
Mass loss
α 0.0–1.0
β 0.0–1.0
δ 0.0–0.30
γ 1.12
ϵ 0.0–0.25
CB disk
maximum mass (M) 10-4–10-2
lifetime (yr) 104–105
viscosity 0.001–0.01
mass distribution r -1

Notes. Not all parameter combinations result in an sdB binary.

(a)

The companion mass is always lower than the donor mass.

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