论文标题
年轻无线电脉冲星中的磁场衰变
Magnetic field decay in young radio pulsars
论文作者
论文摘要
磁场衰减在正常无线电脉冲星中的作用仍在争论中。在本文中，我们提出了结果，该结果表明，热年轻的中子星中的磁场衰减发作可以解释最近针对多个来源测量的制动指数的异常值。足以在总人群中拥有几十此类热NS的人来解释可观察到的东西。相对较快的衰减在$ \ lyssim $〜几个〜$ \ times100 $ 〜kyrs的年龄运行，具有相似值的特征时间尺度。我们推测，这种衰减可能与中子星形外壳中的电子子散射有关。这种类型的衰减会随着中子星冷却而饱和。后来，由于地壳杂质而导致的衰变较慢。最后，我们证明了这一结果与我们的早期研究一致。
The role of magnetic field decay in normal radio pulsars is still debated. In this paper we present results which demonstrate that an episode of magnetic field decay in hot young neutron stars can explain anomalous values of braking indices recently measured for more than a dozen of sources. It is enough to have few tens of per cent of such hot NSs in the total population to explain observables. Relatively rapid decay operates at ages $\lesssim$~few~$\times100$~kyrs with a characteristic timescale of a similar value. We speculate that this decay can be related to electron scattering off phonons in neutron star crusts. This type of decay saturates as a neutron star cools down. Later on, a much slower decay due to crustal impurities dominates. Finally, we demonstrate that this result is in agreement with our early studies.
