Impact of the equation-of-state-gravity degeneracy on constraining the nuclear symmetry energy from astrophysical observables

  title={Impact of the equation-of-state-gravity degeneracy on constraining the nuclear symmetry energy from astrophysical observables},
  author={Xiao-Tao He and Farrukh J. Fattoyev and Bao-An Li and William G. Newton},
  journal={Physical Review C},
There is a degeneracy between the equation of state (EOS) of superdense neutron-rich nuclear matter and the strong-field gravity in understanding properties of neutron stars. While the EOS is still poorly known, there are also longstanding ambiguities in choosing Einstein's general relativity (GR) or alternative gravity theories in the not-so-well-tested strong-field regime. Besides the possible appearance of hyperons and new phases, the most uncertain part of the nucleonic EOS is currently the… 

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