${}^{19}$F$(p,\gamma )$${}^{20}$Ne reaction rate and the puzzling calcium abundance in metal poor stars

G. X. Dong, X. B. Wang, N. Michel +1

The ${}^{19}$F$(p,\gamma )$${}^{20}$Ne reaction is the only process to break out of the CNO cycle at temperature below 0.1 GK and may serve as the origin of calcium in first generation of st…