Silver and palladium help unveil the nature of a second r-process

@article{Hansen2012SilverAP,
  title={Silver and palladium help unveil the nature of a second r-process},
  author={C. J. Hansen and Francesca Primas and Henrik Hartman and Karl Ludwig Kratz and Shinya Wanajo and Bruno Leibundgut and Khalil Farouqi and Oliver Hallmann and Norbert Christlieb and Hampus Nilsson},
  journal={Astronomy and Astrophysics},
  year={2012},
  volume={545},
  pages={1-28}
}
Context. The rapid neutron-capture process, which created about half of the heaviest elements in the solar system, is believed to have been unique. Many recent studies have shown that this uniqueness is not true for the formation of lighter elements, in particular those in the atomic number range 38 < Z < 48. Among these, palladium (Pd) and especially silver (Ag) are expected to be key indicators of a possible second r-process, but until recently they have been studied only in a few stars. We… Expand
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