New stellar reaction rate for C-12(alpha,gamma)O-16

The C-12(alpha, gamma)O-16 reaction rate has been reevaluated using recently published cross section estimates. The results suggest that the temperature dependence of the reaction rate as given by Caughlan & Fowler should be revised, even though the absolute cross section of C-12(alpha, gamma)O-16 Still needs a better determination at low energies, Values for the stellar reaction rate of C-12(alpha, gamma)O-16 have been calculated for a recommended cross section as well as for the experimental upper and lower limits of the cross section. In addition, analytic expressions for these reaction rates are given for 0.03 less than or equal to T-9 less than or equal to 2.