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Fig. 6.

image

Carbon-free (panel a), neon-free (panel b), and iron core mass (panel c) at core collapse as a function of CO core mass MCO. The carbon- and neon-free core masses are defined as those mass coordinates where the carbon and neon mass fraction falls below 10−5, i.e. these core masses (mass coordinates) indicate the bottom of the carbon- and neon-burning layers at core collapse.

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