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arXiv 1101.3100astro-ph.HE
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脉冲星磁层

Pulsar Magnetosphere

Andrei Gruzinov

摘要:

我们认为,现有的理想脉冲星磁层模型是不正确的,因为不适当的处理的奇异电流层外的光柱。在强场电动力学的无力极限下模拟了轴对称脉冲星磁层。结果表明,即使在无力极限下,也有一些场线进入位于赤道平面内光柱之外的奇异电流层。结果是:(i)大约10%的坡印廷通量在1和1.5个光柱半径之间耗散,(ii)在光柱内没有奇异电流层。

英文摘要:

We argue that existing models of the ideal pulsar magnetosphere are incorrect because of the improper treatment of the singular current layer outside the light cylinder. We simulated the axisymmetric pulsar magnetosphere in the Force-Free limit of Strong-Field Electrodynamics. It turns out that even in the Force-Free limit, some field lines enter the singular current layer which lies beyond the light cylinder in the equatorial plane. As a result: (i) about 10% of the Poynting flux is dissipated between 1 and 1.5 light cylinder radii, (ii) there is no singular current layer within the light cylinder.

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