ELECTRON-CAPTURE SUPERNOVAE AS THE ORIGIN OF ELEMENTS BEYOND IRON

@article{Wanajo2011ELECTRONCAPTURESA,
  title={ELECTRON-CAPTURE SUPERNOVAE AS THE ORIGIN OF ELEMENTS BEYOND IRON},
  author={Shinya Wanajo and Hans-Thomas Janka and Bernhard Mueller},
  journal={The Astrophysical Journal},
  year={2011},
  volume={726},
  pages={1-4}
}
We examine electron-capture supernovae (ECSNe) as sources of elements heavier than iron in the solar system and in Galactic halo stars. Nucleosynthesis calculations are performed on the basis of thermodynamic histories of mass elements from a fully self-consistent, two-dimensional hydrodynamic explosion model of an ECSN. We find that neutron-rich convective lumps with an electron fraction down to Y e,min = 0.40, which are absent in the one-dimensional counterpart, allow for interesting… Expand

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