16O(p,α)13N makes explosive oxygen burning sensitive to the metallicity of the progenitors of type Ia supernovae

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Fig. 3.

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α-efficiency of explosive oxygen burning for the same mass shells depicted in Figs. 1 and 2, for the low-Z case (in red) and the high-Z case (in blue). The limit efficiencies for α-rich oxygen burning, δα/δ¹⁶O = 4, and α-poor oxygen burning, δα/δ¹⁶O = 0.25, are drawn as dotted lines.

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