Local measurement of nonclassical ion heating during magnetic reconnection
Local measurement of nonclassical ion heating during magnetic reconnection
复制标题
磁重联过程中非经典离子加热的局部测量
作者：
Hsu;Fiksel;Carter;Ji;Kulsrud;Yamada
局部离子的温度和流量直接测量在实验室等离子体的重联层的良好特征。测量结果表明，强烈的离子被加热，由于重新连接和重新连接的场能量的一半以上被转换为离子热能。无论是经典的粘性阻尼所观察到的亚Alfvenic离子流，也不是经典的能量交换与电子是足以占离子加热，这表明非经典耗散机制的重连层的重要性。
Local ion temperature and flows are measured directly in the well-characterized reconnection layer of a laboratory plasma. The measurements indicate strongly that ions are heated due to reconnection and that more than half of the reconnected field energy is converted to ion thermal energy. Neither classical viscous damping of the observed sub-Alfvenic ion flows nor classical energy exchange with electrons is sufficient to account for the ion heating, suggesting the importance of nonclassical dissipation mechanisms in the reconnection layer.