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arXiv · 1206.0205

Inner crust of neutron stars with mass-fitted Skyrme functionals

J. M. Pearson·N. Chamel·S. Goriely·C. Ducoin
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Abstract

The equation of state and composition of the inner crust of neutron stars at zero temperature are calculated, using the T = 0 version of the TETFSI (temperature-dependent extended Thomas-Fermi plus Strutinsky integral) method, for each of a family of three functionals based on Skyrme-type forces BSk19, BSk20 and BSk21, which are characterized by different degrees of symmetry-energy stiffness, and also for the SLy4 functional. We also solve the Tolman-Oppenheimer-Volkoff equations to calculate the distribution of mass within the inner crust. Qualitatively similar results are found for all four functionals, and in particular the number of protons per Wigner-Seitz cell is in all cases equal to 40 throughout the inner crust.

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J. M. Pearson, N. Chamel, S. Goriely, C. Ducoin. 2012-06-01. Inner crust of neutron stars with mass-fitted Skyrme functionals. https://doi.org/10.1103/physrevc.85.065803

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