Inner crust of neutron stars with mass-fitted Skyrme functionals
| Autor: | Pearson, J. M., Chamel, N., Goriely, S., Ducoin, C. |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Phys.Rev.C85:065803,2012 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevC.85.065803 |
| Popis: | 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. Comment: 35 pages, 13 figures, accepted for publication in Physical Review C |
| Databáze: | arXiv |
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