论文标题
轨道中子恒星的磁层
Magnetosphere of an orbiting neutron star
论文作者
论文摘要
我们在平坦的时空中进行轨道运动的单个中子恒星进行无力的模拟，模仿恒星在紧凑的二元系统上的质量中心的轨迹。我们的注意力集中在中子恒星的磁偶极矩的加速度，尤其是该能量如何分布在其周围的磁层中，从轨道中提取的动能。提出了对我们的设置中产生的磁层构型的详细研究，并纳入了由于中子恒星自旋以及磁性和轨道轴未对准引起的影响。我们发现许多特征类似于旋转中子恒星的脉冲星磁层的特征 - 即使在没有自旋的情况下，也特别感兴趣的是螺旋电流板的发展，该螺旋电流板的延伸超出了光缸。然后，我们使用Pulsar理论的最新进展来估计在此类电流表的重新连接区域产生的电磁排放。
We conduct force-free simulations of a single neutron star undergoing orbital motion in flat spacetime, mimicking the trajectory of the star about the center of mass on a compact binary system. Our attention is focused on the kinetic energy being extracted from the orbit by the acceleration of the magnetic dipole moment of the neutron star, and particularly, on how this energy gets distributed within its surrounding magnetosphere. A detailed study of the resulting magnetospheric configurations in our setting is presented, incorporating as well the effects due to neutron star spin and the misalignment of the magnetic and orbital axes. We find many features resembling those of pulsar magnetospheres for the orbiting neutron star --even in the absence of spin--, being of particular interest the development of a spiral current sheet that extends beyond the light cylinder. Then, we use recent advances in pulsar theory to estimate electromagnetic emissions produced at the reconnection regions of such current sheets.
