Question

Calculate the ratio of the energy generation rate for the pp chain to the energy generation rate for the CNO cycle given conditions characteristic of the center of the present-day (evolved) Sun, namely T = 1.5696 × 107 K, ? = 1.527 × 105 kg m?3, X = 0.3397, and XCNO = 0.0141. Assume that the pp chain screening factor is unity (fpp = 1) and that the pp chain branching factor is unity (?pp = 1)

Answer 1