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physical phenomena > energy source > exothermic fusion process > hydrogen burning > carbon cycle > CNO bi-cycle
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CNO bi-cycle comparison table
Subject has probability is a kind of is an instance of has definition
carbon cycle hydrogen burning Use of carbon and nitrogen as intermediates in the nuclear fusion process of the Sun. Cooler stars undergo the proton-proton cycle.
CNO bi-cycle2% of the energy of our Sun carbon cycleSimilar to the CNO cycle, except that it also includes a cycle in which the next-to-last step becomes 15N(p, γ) 16O(p, γ) 17F(β+ν) 17O(p, α) 14N. This reaction occurs once in about 2000 CN cycles. For main-sequence stars greater than a few solar masses, hydrogen burning by the CNO bi-cycle is the main source of energy.

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