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Table 2

White dwarf properties at the crossing of the ignition and dynamical curves.

Ignition curve
Model Tca ρca Xc(12C)a M(12C)a
(108   K) (g   cm-3) (M⊙)
CF88 2.658 2.85 × 109 0.2387 0.5726
LER-1.5-0.1-1.0 2.256 2.56 × 109 0.2387 0.5708
LER-1.5-0.001-1.0 2.357 2.84 × 109 0.2387 0.5724
LER-1.5-10.-1.0 2.150 2.06 × 109 0.2387 0.5678
LER-1.3-0.1-1.0 1.984 1.67 × 109 0.2388 0.5627
LER-1.7-0.1-1.0 2.361 2.85 × 109 0.2387 0.5726
Dynamical curve
Model Tcb ρcb Xc(12C)b ΔM(12C)c Mconvd Mrwe Rrwe tsimmf
(108   K) (g   cm-3) (M⊙) (M⊙) (M⊙) (km) (yr)
CF88 9.715 2.09 × 109 0.2237 0.0124 1.268 center 534.4
LER-1.5-0.1-1.0 6.075 2.33 × 109 0.2332 0.0030 0.996 center 71.6
LER-1.5-0.001-1.0 7.878 2.38 × 109 0.2272 0.0078 1.162 center 157.9
LER-1.5-10.-1.0 5.019g 1.90 × 109g 0.2708g 0.0021 0.889 0.0137 149 54.2
LER-1.3-0.1-1.0 5.240h 1.34 × 109h 0.3007h 0.0029 0.996 0.0382 233 61.9
LER-1.7-0.1-1.0 7.009 2.62 × 109 0.2414 0.0050 1.102 center 306.2

Notes. Initial white dwarf mass: 0.8 M⊙, accretion rate: 5 × 10-7 M⊙/yr.

(a)

Central temperature, density, and mass fraction and total mass of 12C at the crossing of the ignition curve.

(b)

Central temperature, density, and mass fraction of 12C at the crossing of the dynamical curve.

(c)

Total mass of 12C burned up to the crossing of the dynamical curve.

(d)

Size of the convective core.

(e)

Location (mass and radius) of the first zone to cross the dynamical curve.

(f)

Time elapsed between the crossing of the ignition and dynamical curves, or simmering time.

(g)

The temperature, density and 12C mass fraction shown belong to the first zone to cross the dynamical curve. The corresponding values of density and 12C mass fraction at the center were: 2.06 × 109 g cm-3 and 0.2387, respectively.

(h)

The temperature, density and 12C mass fraction shown belong to the first zone to cross the dynamical curve. The corresponding values of density and 12C mass fraction at the center were: 1.57 × 109 g cm-3 and 0.2388, respectively.

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