The End of Nucleosynthesis: Production of Lead and Thorium in the Early Galaxy

@article{Roederer2009TheEO,
  title={The End of Nucleosynthesis: Production of Lead and Thorium in the Early Galaxy},
  author={Ian U. Roederer and Karl Ludwig Kratz and Anna Frebel and Norbert Christlieb and Bernd Pfeiffer and J. J. Cowan and Christopher Sneden},
  journal={The Astrophysical Journal},
  year={2009},
  volume={698},
  pages={1963-1980}
}
We examine the Pb and Th abundances in 27 metal-poor stars (−3.1 56) enrichment was produced only by the rapid (r-) nucleosynthesis process. New abundances are derived from HubbleSpace Telescope/Space Telescope Imaging Spectrograph, Keck/High Resolution Echelle Spectrograph, and Very Large Telescope/UV–Visual Echelle Spectrograph spectra and combined with other measurements from the literature to form a more complete picture of nucleosynthesis of the heaviest elements produced in the r-process… Expand
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Enrichment of Thorium (Th) and Lead (Pb) in the early Galaxy
  • W. Aoki, S. Honda
  • Physics
  • Proceedings of the International Astronomical Union
  • 2009
Abstract We have been determining abundances of Th, Pb and other neutron-capture elements in metal-deficient cool giant stars to constrain the enrichment of heavy elements by the r- and s-processes.Expand
XV. Third-peak r-process element and actinide abundances in the uranium-rich star CS31082-001
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