Gyroresonant surfing acceleration.
Gyroresonant surfing acceleration.
复制标题
陀螺谐振冲浪加速。
DOI：
--
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发表时间：
2005
影响因子：
8.6
通讯作者：
V. Krasnoselskikh
中科院分区：
文献类型：
--
作者：
Y. Kuramitsu;V. Krasnoselskikh
我们讨论了空间和天体物理等离子体中带电粒子的一种新的加速或充能机制。在静电势梯度和圆极化电磁单色波存在的情况下，由于静电拖曳力，粒子通过保持回旋加速器与波的共振而有效地加速。此外，即使粒子具有较小的平行能量，它们也可以逆静电势传播。在粒子加速和输运方面，该机制可能广泛适用于各种空间和天体物理现象，如激波环境和短振幅磁结构。从理论上和数值上介绍了加速或充能机理的基本物理过程。
We discuss a new acceleration or energization mechanism of charged particles in space and astrophysical plasmas. In the presence of an electrostatic potential gradient and a circularly polarized electromagnetic monochromatic wave, particles are accelerated efficiently by keeping cyclotron resonance with the wave due to the electrostatic dragging force. In addition, particles can propagate against the electrostatic potential even if they have smaller parallel energy. This mechanism is potentially widely applicable, in terms of particle acceleration and transport, to various space and astrophysical phenomena, such as shock environment and short-large amplitude magnetic structures. We introduce the basic physical process of the acceleration or energization mechanism theoretically and numerically.