Structure of the inner crust of neutron stars: Crystal lattice or disordered phase?

被引:102
作者
Magierski, P
Heenen, PH
机构
[1] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland
[2] ULB, Serv Phys Nucl Theor, B-1050 Brussels, Belgium
来源
PHYSICAL REVIEW C | 2002年 / 65卷 / 04期
关键词
D O I
10.1103/PhysRevC.65.045804
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We investigate the inner crust structure of neutron stars using the Skyrme-Hartree-Fock approach with the Coulomb interaction treated beyond the Wigner-Seitz approximation. Our results suggest that the shell effects associated with unbound neutrons play an important role and, in particular, lead to a complicated phase transition pattern between various nuclear phases (as a function of the density). Namely, we show that the relative energies of different phases are rapidly oscillating functions of the neutron density. In the semiclassical approach this behavior is explained as an interference effect due to periodic orbits of similar lengths. We discuss also the dependence of the shell effects on pairing correlations.
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页码:458041 / 4580413
页数:13
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