月球大气分子逃逸率的计算  

CALCULATION OF ESCAPE RATE OF LUNAR ATMOSPHERIC MOLECULES

作　　者：达道安[1] 杨亚天[2] 

机构地区：[1]兰州物理研究所,兰州730000 [2]福建师范大学,福州350007

出　　处：《航天器环境工程》2005年第2期63-68,共6页Spacecraft Environment Engineering

摘　　要：文章从理论上计算了月球大气分子的逃逸率,解释了月球大气稀薄的原因。根据月岩和月壤放出的气体量与逃逸的气体量达到动态平衡的假定,说明了月球上大气密度昼夜的差异。The escape rate of lunar atmosphere molecules is calculated theoretically to explain the rareness of lunar atmosphere.The difference of lunar atmospheric density between day and night on the Moon is explained based on a hypothesis that the amount of outgassing from lunar mineral and lunar soil and the amount of escape molecules of the moon are balanced.

关 键 词：月球 气体 逃逸 平衡 

分 类 号：P184.5[天文地球—天文学]