Production of all the r-process nuclides in the dynamical ejecta of neutron star mergers

@article{Wanajo2014ProductionOA,
  title={Production of all the r-process nuclides in the dynamical ejecta of neutron star mergers},
  author={S. Wanajo and Yuichiro Sekiguchi and N. Nishimura and K. Kiuchi and K. Kyutoku and M. Shibata},
  journal={The Astrophysical Journal},
  year={2014},
  volume={789}
}
Recent studies suggest that binary neutron star (NS-NS) mergers robustly produce heavy r-process nuclei above the atomic mass number A ~ 130 because their ejecta consist of almost pure neutrons (electron fraction of Y e < 0.1). However, the production of a small amount of the lighter r-process nuclei (A ≈ 90-120) conflicts with the spectroscopic results of r-process-enhanced Galactic halo stars. We present, for the first time, the result of nucleosynthesis calculations based on the fully… Expand

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