Tags: Star.

The oxygen-burning process is a set of nuclear fusion reactions that take place in massive stars that have used up the lighter elements in their cores. It occurs at temperatures around 1.5×109 K / 130 keV and densities of 1010 kg/m3.The principal reactions are:With the neon-burning process an inert core of O-Mg forms in the centre of the star. As the neon burning turns off the core contracts and heats up to the ignition point for the oxygen burning.

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