Solar Wind Implantation into Lunar Regolith II: Monte Carlo Simulations of Hydrogen Retention in a Surface with Defects and the Hydrogen (H, H2) Exosphere

Tucker, O J ; Farrell, W M ; Killen, R M ; Hurley, D M

关键词: LUNAR ROCKS;    MINERALOGY;    HYDROGEN;    SURFACE TEMPERATURE;    MONTE CARLO METHOD;    EXOSPHERE;    LUNAR SURFACE;    SOLAR WIND;    MOON;    REGOLITH;    DIFFUSION;   

RP-ID  :  LPI Contrib. No. 2083,GSFC-E-DAA-TN53696

学科分类：天文学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

Recently, the near-infrared observations of the OH veneer on the lunar surface by the Moon Mineralogy Mapper (M3) have been refined to constrain the OH content to 500-750 parts per million (ppm). The observations indicate diurnal variations in OH up to 200 ppm possibly linked to warmer surface temperatures at low latitude. We examine the M3 observations using a statistical mechanics approach to model the diffusion of implanted H in the lunar regolith. We present results from Monte Carlo simulations of the diffusion of implanted solar wind H atoms and the subsequently derived H and H2 exospheres.