中子星并合过程中未对准磁层的相互作用
Interaction of misaligned magnetospheres in the coalescence of binary neutron stars
摘要：
本文研究了双中子星系统中由无力磁层相互作用产生的电磁光度与偶极倾角的关系。我们发现，这种相互作用提取系统的动能和权力的坡印亭通量具有很强的依赖于偶极子的取向。这种依赖性可以与恒星相互作用时磁场的重新连接和重新分布有关。虽然坡印廷光度的细节在很大程度上取决于取向，但这里考虑的所有情况都辐射出大的坡印廷通量。这种强烈的辐射表明，双中子星系统的合并前阶段可以产生有趣的电磁对应的引力波事件。
英文摘要：
We study the dependence of the electromagnetic luminosity --produced by interactions of force-free magnetospheres-- on dipole inclinations in binary neutron star systems. We show that this interaction extracts kinetic energy from the system and powers a Poynting flux with a strong dependence on the dipole orientations. This dependence can be linked to the reconnection and redistribution of magnetic field as the stars interact. Although the details of the Poynting luminosity are very much dependent on the orientation, all the cases considered here nevertheless radiate a large Poynting flux. This robust emission suggests that the pre-merger stage of binary neutron star systems can yield interesting electromagnetic counterparts to gravitational wave events.
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