Stellar rates for the Mg24/alpha, n/Si27, Mg25/p, n/Al25, Al27/p, n/Si27, and Si28/alpha, n/S31 reactions
Abstract
Groundstate reaction rates have been deduced from recent cross section measurements for the endoergic Mg24(alpha, n)Si27, Mg25(p, n)Al25, Al27(p, n)Si27 and Si28(alpha, n)S31 reactions, supplemented by an extrapolation from the first experimental point to threshold using the statistical model predictions of Woosley et al. (1975, 1978). These rates are in very good agreement with those calculated from the statistical model. Stellar rates have been derived from the groundstate rates by multiplying by the ratio of stellar to groundstate rates given by the statistical model. Both groundstate and stellar rates have been represented by analytic functions of the temperature.
 Publication:

The Astrophysical Journal
 Pub Date:
 October 1980
 DOI:
 10.1086/158396
 Bibcode:
 1980ApJ...241..844C
 Keywords:

 Aluminum Isotopes;
 Magnesium Isotopes;
 Reaction Kinetics;
 Silicon Isotopes;
 Stars;
 Sulfur Isotopes;
 Thermonuclear Reactions;
 Astrophysics;
 Cross Sections;
 Tables (Data);
 Astrophysics