Research on the inversion of elemental abundances from Chang'E-2 X-ray spectrometry data  

作　　者：BAN Chao ZHENG Yongchun ZHU Yongchao ZHANG Feng XU Lin ZOU Yongliao 

机构地区：[1]National Astronomical Observatories, Chinese Academy of Sciences [2]University of Chinese Academy of Sciences [3]Space Science Institute, Macao University of Science and Technology

出　　处：《Chinese Journal Of Geochemistry》2014年第3期289-299,共11页中国地球化学学报

基　　金：financially supported jointly by the NSFC program(40904051);CAS Program(XDA04071900);Science and Technology Development Fund in Macao SAR(Grant Number:048/2012/A2)

摘　　要：The elemental abundances of lunar surface are the important clues to study the formation and evolution history of the Moon. In 2010, China's Chang'E-2(CE-2) lunar orbiter carried a set of X-ray spectrometer(XRS) to investigate the elemental abundances of the lunar surface. During CE-2's life span around the Moon, the XRS experienced several events of solar flare. The X-ray solar monitor onboard recorded the spectra of solar X-rays at the same time. In this paper, we introduced the XRS instrument and data product. We analyzed the characteristics of the XRS data. Using the data obtained during an M solar flare event which had occurred on Feb. 16, 2011, we derived the elemental abundances of Mg, Al, Si, Ca and Fe of the lunar surface in the Oceanus Procellarum. Finally, we discussed the factors that influence the accuracy of the inversion.The elemental abundances of lunar surface are the important clues to study the formation and evolution history of the Moon. In 2010, China＇s Chang＇E-2 （CE-2） lunar orbiter carried a set of X-ray spectrometer （XRS） to investigate the elemental abundances of the lunar surface. During CE-2＇s life span around the Moon, the XRS ex- perienced several events of solar flare. The X-ray solar monitor onboard recorded the spectra of solar X-rays at the same time. In this paper, we introduced the XRS instrument and data product. We analyzed the characteristics of the XRS data. Using the data obtained during an M solar flare event which had occurred on Feb. 16, 201 l, we derived the elemental abundances ofMg, A1, Si, Ca and Fe of the lunar surface in the Oceanus Procellarum. Finally, we dis- cussed the factors that influence the accuracy of the inversion.

关 键 词：X射线光谱 元素丰度 数据反演 月球表面 太阳耀斑 月球探测器 演化历史 数据产品 

分 类 号：P184[天文地球—天文学]