论文标题
带有多极磁层的再生脉冲星,来自增生诱导的磁埋葬
Recycled pulsars with multipolar magnetospheres from accretion-induced magnetic burial
论文作者
论文摘要
在较早的积聚阶段,人们认为许多毫秒的脉冲星被认为是旧的中子星(“回收”)。它们通常具有相对较弱的($ \ lyssim 10^{9} \ text {g} $)偶极场强度,与积聚引起的磁性埋葬一致。来自中子星内部组成探索器的最新数据表明,回收的Pulsar PSR J0030 $+$ 0451的热点不是抗焦点,因此磁场不能是中心偶极子的磁场。在本文中,这表明由于赤道场线压缩,在埋葬场景中自然预期了多极性。构建了Shafranov毕业生的平衡,以显示如何根据各种特性(例如积聚质量的量和状态的地壳方程)计算磁多极矩。
Many millisecond pulsars are thought to be old neutron stars spun up (`recycled') during an earlier accretion phase. They typically have relatively weak ($\lesssim 10^{9} \text{ G}$) dipole field strengths, consistent with accretion-induced magnetic burial. Recent data from the Neutron Star Interior Composition Explorer indicate that hot spots atop the recycled pulsar PSR J0030$+$0451 are not antipodal, so that the magnetic field cannot be that of a centered dipole. In this paper it is shown that multipolarity is naturally expected in the burial scenario because of equatorial field line compression. Grad-Shafranov equilibria are constructed to show how magnetic multipole moments can be calculated in terms of various properties, such as the amount of accreted mass and the crustal equation of state.