y-ray spectroscopy of the A = 23, T = 1/2 nuclei 23Na and 23Mg: High-spin states, mirror symmetry, and applications to nuclear astrophysical reaction rates.

The article presents a comparison of mirror symmetry in the A = 23, T = 1/2 mirror nuclei 23Na and 23Mg both to high spin, and high excitation energy, including beyond the proton threshold. Excited states in the region above the proton threshold have been studied in both nuclei. It presents methods of obtaining reaction rates for nuclear astrophysics. It concludes that estimated data of shell model calculations can be used if real data is not available.