Proton-induced thermonuclear reaction rates for a = 20-40 nuclei

Christian Iliadis, John M. D'Auria, Sumner Starrfield, William J. Thompson, Michael Wiescher

Research output: Contribution to journalArticlepeer-review

225 Scopus citations


Proton-induced reaction rates on 26 stable and 29 unstable target nuclei in the mass A = 20-40 region have been evaluated and compiled. Recommended reaction rates, assuming that all interacting nuclei are in the ground state, are presented in tabular form on a temperature grid in the range T = 0.01-10.0 GK. Most reaction rates involving stable targets were normalized to a set of measured standard resonance strengths in the sd shell. For the majority of reaction rates, experimental information from transfer reaction studies has been used consistently. Our results are compared with recent statistical model (Hauser-Feshbach) calculations. Reaction rate uncertainties are presented and amount to several orders of magnitude for many of the reactions. Several of these reaction rates and/or their corresponding uncertainties deviate from results of previous compilations. In most cases, the deviations are explained by the fact that new experimental information became available recently. Examples are given for calculating reaction rates and reverse reaction rates for thermally excited nuclei from the present results. The survey of literature for this review was concluded in 2000 August.

Original languageEnglish (US)
Pages (from-to)151-171
Number of pages21
JournalAstrophysical Journal, Supplement Series
Issue number1
StatePublished - May 1 2001


  • Abundances -stars: Evolution
  • Nuclear reactions
  • Nucleosynthesis

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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