The effect of electron holes on cyclotron maser emission driven by horseshoe distributions
The effect of electron holes on cyclotron maser emission driven by horseshoe distributions
复制标题
电子空穴对马蹄分布驱动的回旋加速器脉泽发射的影响
DOI：
10.1063/1.4968220
复制
发表时间：
2016
影响因子：
2.2
通讯作者：
Wu D. J.
中科院分区：
文献类型：
--
作者：
Zhao G. Q.;Chu Y. H.;Feng H. Q.;Wu D. J.
本文定量研究了电子空穴对马蹄形分布驱动的电子回旋脉塞（ECM）的影响。调查是基于一个集成的分布函数的马蹄分布与电子空穴。结果表明，在很窄的波段内，电子空穴的存在可使ECM的生长速率显著提高2-3倍。目前的研究表明，这些电子空穴可能是负责一些精细结构的辐射，如窄带事件的极光千米辐射和太阳微波尖峰。
This Brief Communication presents a quantitative investigation for the effect of electron holes on electron-cyclotron maser (ECM) driven by horseshoe distributions. The investigation is based on an integrated distribution function for the horseshoe distributions with electron holes. Results show that the presence of electron holes can significantly enhance the ECM growth rate by 2–3 times in a very narrow waveband. The present study suggests that these electron holes probably are responsible for some fine structures of radiations, such as narrowband events in auroral kilometric radiation and solar microwave spikes.