Elastic Properties of Nuclear Pasta in Neutron-star Crusts
Based on the relativistic mean field(RMF)model with Thomas-Fermi approximation,we investigate the elastic properties of neutron star matter.The elastic constants are estimated by introducing deformations on the nuclear pasta structures in β-equilibrium,where various crystalline configurations are considered in a fully three-dimension-al geometry without the Wigner-Seitz approximation.Two scenarios with different symmetry energy slope(L=41.34 and 89.39 MeV)are examined,where the the elastic constants can vary by ten times.By fitting to the numerical res-ults,we improve the analytic formulae for the elastic properties of nuclear pasta by introducing damping factors.
elastic constantnuclear pastaneutron starsymmetry energy
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