论文标题
Pulsar PSR J0737-3039B的磁层radial径扩散
Radial diffusion in corotating magnetosphere of Pulsar PSR J0737-3039B
论文作者
论文摘要
PSR J0737中与Pulsar B相关的丰富观察现象学$ - $ 3039A/B系统在许多方面与地球和木星磁层观察到的现象相似，这是由于风磁层相互作用而引起的。当自旋周期短于第三次绝热时期时，我们考虑脉冲星B的快速旋转磁层中的粒子动力学。我们证明，由于回旋运动的参数相互作用与磁层变形引起的大型电场引起的大规模电场的参数相互作用，偶尔会经历L-参数（有效径向距离）的径向径向变化很大，这被称为Betatron诱导的扩散。脉冲星A中的颗粒的动力学被困在Pulsar B磁层内的动力学受Mathieu方程的控制，因此有时会激活参数性不稳定的轨道。粒子动力学本身不是扩散的。该模型解释了脉冲星B的闭合场系上的高血浆密度，并且观察到的黯然失色区域比流体动力学模型所预测的小几倍。
Rich observational phenomenology associated with Pulsar B in PSR J0737$-$3039A/B system resembles in many respects phenomena observed in the Earth and Jupiter magnetospheres, originating due to the wind-magnetosphere interaction. We consider particle dynamics in the fast corotating magnetosphere of Pulsar B, when the spin period is shorter than the third adiabatic period. We demonstrate that trapped particles occasionally experience large radial variations of the L-parameter (effective radial distance) due to the parametric interaction of the gyration motion with the large scale electric fields induced by the deformations of the magnetosphere, in what could be called a betatron-induced diffusion. The dynamics of particles from the wind of Pulsar A trapped inside Pulsar B magnetosphere is governed by Mathieu's equation, so that the parametrically unstable orbits are occasionally activated; particle dynamics is not diffusive per se. The model explains the high plasma density on the closed field lines of Pulsar B, and the fact that the observed eclipsing region is several times smaller than predicted by the hydrodynamic models.
