论文标题
涡旋固定在中子星的超流体核心和脉冲星的兴起
Vortex pinning in the superfluid core of neutron stars and the rise of pulsar glitches
论文作者
论文摘要
螃蟹和Vela脉冲星的时机最近揭示了在小故障的早期阶段，它们的自旋频率非常奇特。我们表明，这些差异可以从这些中子恒星核心中的中子超氟涡流与质子棒球之间的相互作用来解释。特别是，发现单个涡流固定到棒状油上对中子超氟和恒星的其余部分之间的相互摩擦产生了巨大影响。涡流附加的棒状体数量证明是恒星全局动力学的关键参数。这些结果可能对解释其他天体物理现象（如无脉冲性进动或R模式不稳定性）有影响。
Timing of the Crab and Vela pulsars have recently revealed very peculiar evolutions of their spin frequency during the early stage of a glitch. We show that these differences can be interpreted from the interactions between neutron superfluid vortices and proton fluxoids in the core of these neutron stars. In particular, pinning of individual vortices to fluxoids is found to have a dramatic impact on the mutual friction between the neutron superfluid and the rest of the star. The number of fluxoids attached to vortices turns out to be a key parameter governing the global dynamics of the star. These results may have implications for the interpretation of other astrophysical phenomena such as pulsar-free precession or the r-mode instability.
