Dusty plasma at the surface of the moon
Dusty plasma at the surface of the moon
复制标题
月球表面的尘埃等离子体
DOI：
10.1134/s0038094613060063
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Y. Izvekova
中科院分区：
文献类型：
--
作者：
S. Popel;S. Kopnin;A. Golub';G. G. Dol’nikov;A. Zakharov;L. Zelenyi;Y. Izvekova
提出了一个自洽描述月球表面光照部分光电子和尘埃粒子浓度的理论模型。该模型考虑了月球表面和尘埃粒子表面光电子的位置和产生的影响，尘埃粒子在电场和引力场中的动力学，以及尘埃粒子与太阳辐射光子、太阳风电子和离子、光电子等相互作用对尘埃粒子的带电作用，得到了描述光电子在月球表面照明部分的分布的表达式。计算了局部法线与太阳方向成不同夹角时，月球表面照亮部分上方带电尘埃粒子的大小和高度分布。结果表明，对于未来旨在研究月球近表面尘埃的月球航天器任务，着陆点的选择没有实质性限制。
A theoretical model that provides a self-consistent description of the concentrations of photoelectrons and dust particles located over the illuminated part of the lunar surface is presented. The model takes account of the observation point location and the effects of production of photoelectrons at the surfaces of the Moon and dust particles, the dynamics of dust particles in the electric and gravitational fields, and the charging of dust particles through their interaction with the solar radiation photons, the solar wind electrons and ions, photoelectrons, etc. An expression that describes the distribution of photoelectrons over the illuminated part of the lunar surface is obtained. The size and elevation distributions of the charged dust particles located over the illuminated part of the lunar surface are calculated for different angles between the local normal and the direction to the Sun. It is shown that no substantial restrictions are imposed on the choice of the landing site for future lunar spacecraft missions aimed at studying the near-surface dust on the Moon.