The reaction ¹²C(?,?)¹⁶O has a significant effect on the reaction rates during oxygen burning, as it produces large quantities of ¹⁶O.

Convectively bounded flames and off-center oxygen ignition

For stars with masses greater than 10.3 solar masses, oxygen ignites in the core or not at all. Similarly, for stars with a mass of less than 9 solar masses (without accretion of additional mass) oxygen ignites in the core or not at all. However, in the 9-10.3 solar mass range, oxygen ignites off-center.

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