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Title:NUCLEOSYNTHESIS OF MG AND AL IN GLOBULAR CLUSTER RED GIANT STARS
DOI No:10.1142/9789812791276_0007
Source:ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2000 (pp 69-76)
Author(s):C. ILIADIS
The University of North Carolina, Chapel Hill, NC 27599, USA

Triangle Universities Nuclear Laboratory, Durham, NC 27708, USA

Abstract:The proton–capture reaction on 24Mg has been investigated in the bombarding energy range of Ep=0.2–1.7 MeV. Properties of low–energy resonances have been measured. From the experimental results, accurate proton partial widths, γ–ray partial widths and total widths have been deduced. The present experimental information establishes the 24Mg+p reaction rates over the temperature range T=0.02–2.0 GK with statistical uncertainties of less than 21%. Based on our results, we can rule out the recent suggestion that the total width of the ER=223 keV resonance has a significant influence on the reaction rates. The astrophysical implications for hydrogen burning of 24Mg at low stellar temperatures in globular cluster red giant stars are discussed.
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