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A new standard pulsar magnetosphere

机译:一种新的标准脉冲星磁层

摘要

In view of recent efforts to probe the physical conditions in the pulsarcurrent sheet, we revisit the standard solution that describes the mainelements of the ideal force-free pulsar magnetosphere. The simple physicalrequirement that the electric current contained in the current layer consistsof the local electric charge moving outward at close to the speed of light,yields a new standard solution for the pulsar magnetosphere everywhere idealforce-free except in the current layer. The main elements of the new solutionare a) the pulsar spindown rate of the aligned rotator is 23% times larger thanthat of the orthogonal vacuum rotator, b) only 60% of the magnetic flux thatcrosses the light cylinder opens up to infinity, c) the electric current closesalong the other 40% which gradually converges to the equator, d) this transfers40% of the total pulsar spindown energy flux in the equatorial current sheetwhich is then dissipated in the acceleration of particles and in high-energyelectromagnetic radiation, e) there is no separatrix current layer. Oursolution is a minimum free-parameter solution in that the equatorial currentlayer is electrostatically supported against collapse and thus does not requirea thermal particle population. In that respect, it is one more step toward thedevelopment of a new standard solution. We discuss the implications forintermittent pulsars and long duration gamma-ray bursts. We conclude that thephysical conditions in the equatorial current layer determine the globalstructure of the pulsar magnetosphere.
机译:鉴于最近为探索脉冲电流表中的物理条件所做的努力,我们重新介绍了描述理想无力脉冲星磁层主要组成部分的标准解决方案。电流层中包含的电流包括以接近光速的方向向外移动的局部电荷组成的简单物理要求,这为脉冲层磁层提供了一种新的标准解决方案,除了电流层以外,任何地方都没有理想力。新解决方案的主要要素是a)对准转子的脉冲旋转速度比正交真空转子大23%倍,b)穿过光柱的磁通量只有60%打开到无穷大,c)电流闭合,其余40%逐渐收敛到赤道,d)在赤道电流层中转移了总脉冲星自旋下降能量通量的40%,然后在粒子加速和高能电磁辐射中消散,e)有没有setritrix当前层。我们的解决方案是最小的自由参数解决方案,因为赤道电流层受到静电支撑以防止崩溃,因此不需要热粒子填充。在这方面,这是朝着开发新的标准解决方案迈出的又一步。我们讨论了间歇性脉冲星和长时间伽马射线爆发的影响。我们得出结论,赤道电流层的物理条件决定了脉冲星磁层的整体结构。

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