• DOI:10.1146/annurev-nucl-101916-123246
• Corpus ID: 55988809

Neutron Star Mergers and Nucleosynthesis of Heavy Elements

@article{Thielemann2017NeutronSM,
  title={Neutron Star Mergers and Nucleosynthesis of Heavy Elements},
  author={F. Thielemann and Marius Eichler and I. V. Panov and Benjamin Wehmeyer},
  journal={Annual Review of Nuclear and Particle Science},
  year={2017},
  volume={67},
  pages={253-274}
}

• F. Thielemann, M. Eichler, +1 author B. Wehmeyer
• Published 5 October 2017
• Physics
• Annual Review of Nuclear and Particle Science

The existence of neutron star mergers has been supported since the discovery of the binary pulsar and the observation of its orbital energy loss, consistent with General Relativity. They are considered nucleosynthesis sites of the rapid neutron-capture process (r-process), which is responsible for creating approximately half of all heavy elements beyond Fe and is the only source of elements beyond Pb and Bi. Detailed nucleosynthesis calculations based on the decompression of neutron star matter are consistent with solar r-process abundances of heavy nuclei. Neutron star mergers have also been identified with short-duration -ray bursts via their IR afterglow. The high neutron densities in ejected matter permit a violent r-process, leading to fission cycling of the heaviest nuclei in regions far from (nuclear) stability. Uncertainties in several nuclear properties affect the abundance distributions. The modeling of astrophysical events also depends on the hydrodynamic treatment, the occurrence of a neutrino...