Reconciling 56Ni production in Type Ia supernovae with double degenerate scenarios

@article{Piro2014Reconciling5P,
  title={Reconciling 56Ni production in Type Ia supernovae with double degenerate scenarios},
  author={Anthony L. Piro and Todd A. Thompson and Christopher S. Kochanek Caltech and Ohio State University},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2014},
  volume={438},
  pages={3456-3464}
}
We combine the observed distribution of Type Ia supernova (SN Ia) ^(56)Ni yields with the results of sub-Chandrasekhar detonation and direct collision calculations to estimate what mass white dwarfs (WDs) should be exploding for each scenario. For collisions, the average exploding WD mass must be peaked at ≈0.75M_☉, significantly higher than the average field WD mass of ≈0.55–0.60M_☉. Thus, if collisions produce most SNe Ia, then a mechanism must exist that favours higher mass WDs. On the… 

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