Center for Magnetic Self-organization in Laboratory and Astrophysical Plasmas, Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA.
Phys Rev Lett. 2013 May 24;110(21):215007. doi: 10.1103/PhysRevLett.110.215007.
The ion dynamics in a collisionless magnetic reconnection layer are studied in a laboratory plasma. The measured in-plane plasma potential profile, which is established by electrons accelerated around the electron diffusion region, shows a saddle-shaped structure that is wider and deeper towards the outflow direction. This potential structure ballistically accelerates ions near the separatrices toward the outflow direction. Ions are heated as they travel into the high-pressure downstream region.
在实验室等离子体中研究了无碰撞磁重联层中的离子动力学。由电子在电子扩散区周围加速而建立的平面内等离子体电势分布呈现出一种马鞍形结构,这种结构在朝向外流方向时更宽更深。这种电势结构以弹道方式将分隔线附近的离子加速到外流方向。当离子进入高压下游区域时,它们会被加热。