论文标题
从超级流体涡流雪崩中吸收脉冲星的抗媒体
Anti-glitches in accreting pulsars from superfluid vortex avalanches
论文作者
论文摘要
最近，在\ textit {中子星内部构图探索器}（neter）任务中发现了三个突然的旋转事件，称为“抗纤维”。与以前在减速磁铁中检测到的抗冰路不同，这些是在加速脉冲星中记录的第一个抗冰路。一种标准理论是，脉冲星旋转故障是由雪崩促进的雪崩引起的，这些涡流将角动量从超流体内部传递到中子恒星的外壳。在这里，我们测试了涡流雪崩是否也与NGC 300 ULX-1中的抗glit虫一致，而角动量转移反向。我们在$ 5 \ times 10^{3} $上执行$ n $的模拟，在世俗加速和减速的容器中，在二维中固定涡流。涡流雪崩通常在两种情况下发生，分别向内和向外传播。简要考虑了对观察物的含义，例如大小和等待时间统计。
Three sudden spin-down events, termed `anti-glitches', were recently discovered in the accreting pulsar NGC 300 ULX-1 by the \textit{Neutron Star Interior Composition Explorer} (NICER) mission. Unlike previous anti-glitches detected in decelerating magnetars, these are the first anti-glitches recorded in an accelerating pulsar. One standard theory is that pulsar spin-up glitches are caused by avalanches of collectively unpinning vortices that transfer angular momentum from the superfluid interior to the crust of a neutron star. Here we test whether vortex avalanches are also consistent with the anti-glitches in NGC 300 ULX-1, with the angular momentum transfer reversed. We perform $N$-body simulations of up to $5 \times 10^{3}$ pinned vortices in two dimensions in secularly accelerating and decelerating containers. Vortex avalanches routinely occur in both scenarios, propagating inwards and outwards respectively. The implications for observables, such as size and waiting time statistics, are considered briefly.
