论文标题
在月球硬皮磁异常上观察到的静电波和电子加热
Electrostatic Waves and Electron Heating Observed over Lunar Crustal Magnetic Anomalies
论文作者
论文摘要
在月底磁异常上方，可以将大的太阳风电子和离子的大部分散布在太阳风流中，从而导致许多有趣的效果，例如静电不稳定性和波浪。这些静电结构也可以与背景血浆相互作用，从而导致电子加热和散射。我们通过分析月亮与太阳（Artemis）航天器的加速度，重新连接，湍流和电动力学的数据来研究在月球磁异常上观察到的静电波和电子加热。基于对2011年和2013年两个月球蝇的分析，我们发现电子两流不稳定性（ETSI）和电子回旋体漂移不稳定性（ECDI）可能在驱动静电波中起重要作用。我们还发现，ECDI以及经过修改的两流不稳定性（MTSI）可以提供负责在月球磁异常上进行大量各向同性电子加热的机制。
Above lunar crustal magnetic anomalies, large fractions of solar wind electrons and ions can be scattered and stream back towards the solar wind flow, leading to a number of interesting effects such as electrostatic instabilities and waves. These electrostatic structures can also interact with the background plasma, resulting in electron heating and scattering. We study the electrostatic waves and electron heating observed over the lunar magnetic anomalies by analyzing data from the Acceleration, Reconnection, Turbulence, and Electrodynamics of Moon's Interaction with the Sun (ARTEMIS) spacecraft. Based on the analysis of two lunar flybys in 2011 and 2013, we find that the electron two-stream instability (ETSI) and electron cyclotron drift instability (ECDI) may play an important role in driving the electrostatic waves. We also find that ECDI, along with the modified two-stream instability (MTSI), may provide the mechanisms responsible for substantial isotropic electron heating over the lunar magnetic anomalies.
