Nuclear Astrophysics

This is an area for providing nuclear data for astrophysics calculations, such as nucleosynthesis, stellar evolution, the Big Bang, and super-nova dynamics. We are currently including conventional astrophysics representations (the astrophysical S-factor and the reaction rate sigma-v-bar versus temperature) for several charged-particle induced reactions from Los Alamos evaluations.

Astrophysical Data for Charged-Particle Reactions


 These reactions of astrophysical interest were taken from evaluations made with the EDA R-Matrix code by Gerry Hale. The plots are available in several formats for the convenience of the user.
  • D(d,n)3He
    • Postscript | PDF | GIF plot of the astrophysical S factor.
    • TABLE of the astrophysical S factor.
    • Postscript | PDF | GIF plot of the reaction rate sigma-v-bar versus temperature.
    • Table of the reaction rate sigma-v-bar vsersus temperature.
  • D(d,p)T
    • Postscript | PDF | GIF plot of the astrophysical S factor.
    • TABLE of the astrophysical S factor.
    • Postscript | PDF | GIF plot of the reaction rate sigma-v-bar versus temperature.
    • Table of the reaction rate sigma-v-bar vsersus temperature.
  • T(d,n)4He
    • Postscript | PDF | GIF plot of the astrophysical S factor.
    • TABLE of the astrophysical S factor.
    • Postscript | PDF | GIF plot of the reaction rate sigma-v-bar versus temperature.
    • Table of the reaction rate sigma-v-bar vsersus temperature.
  • T(t,2n)4He
    • Postscript | PDF | GIF plot of the astrophysical S factor.
    • TABLE of the astrophysical S factor.
    • Postscript | PDF | GIF plot of the reaction rate sigma-v-bar versus temperature.
    • Table of the reaction rate sigma-v-bar vsersus temperature.
  • 3He(d,p)4He
    • Postscript | PDF | GIF plot of the astrophysical S factor.
    • TABLE of the astrophysical S factor.
    • Postscript | PDF | GIF plot of the reaction rate sigma-v-bar versus temperature.
    • Table of the reaction rate sigma-v-bar vsersus temperature.
  • 6Li(p,3He)4He
    • Postscript | PDF | GIF plot of the astrophysical S factor.
    • TABLE of the astrophysical S factor.
    • Postscript | PDF | GIF plot of the reaction rate sigma-v-bar versus temperature.
    • Table of the reaction rate sigma-v-bar vsersus temperature.
  • 11B(p,α)8Be
    • Postscript | PDF | GIF plot of the astrophysical S factor.
    • TABLE of the astrophysical S factor.
    • Postscript | PDF | GIF plot of the reaction rate sigma-v-bar versus temperature.
    • Table of the reaction rate sigma-v-bar vsersus temperature.
  • Postscript | PDF | GIF plot comparing four astrophysical deuteron reactions.
  • Comparisons of Hale results for sigma-v-bar with those of Hoffman and Woosley
See the links to the charged-particle evaluations in the ENDF part of the Data area of this site for more information, including downloadable files, annotated HTML versions of the evaluations, and PDF plots of the cross sections and distributions for each reaction channel.

Nuclear Properties for Astrophysical Applications


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