Theoretical Astrophysics, University of Tübingen, 72076 Tübingen, Germany.
Phys Rev Lett. 2013 Feb 15;110(7):071101. doi: 10.1103/PhysRevLett.110.071101. Epub 2013 Feb 11.
The interior of a neutron star is likely to be predominantly a mixture of superfluid neutrons and superconducting protons. This results in the quantization of the star's magnetic field into an array of thin flux tubes, producing a macroscopic force very different from the Lorentz force of normal matter. We show that in an axisymmetric superconducting equilibrium the behavior of a magnetic field is governed by a single differential equation. Solving this, we present the first self-consistent superconducting neutron star equilibria with poloidal and mixed poloidal-toroidal fields and also give the first quantitative results for the corresponding magnetically induced distortions to the star. The poloidal component is dominant in all our configurations. We suggest that the transition from normal to superconducting matter in a young neutron star may cause a large-scale field rearrangement.
中子星的内部很可能主要是超流中子和超导质子的混合物。这导致恒星的磁场量子化为一系列薄的通量管，产生一种与正常物质的洛伦兹力非常不同的宏观力。我们表明，在轴对称超导平衡中，磁场的行为由单个微分方程控制。通过求解这个方程，我们给出了具有极向和混合极向-环向场的第一个自洽超导中子星平衡，并给出了对应于星的磁诱导变形的第一个定量结果。在我们的所有配置中，极向分量都是主要的。我们认为，在年轻的中子星中，从正常物质到超导物质的转变可能会导致大规模的磁场重新排列。
