中文核心期刊
CNKI期刊全文数据库
中国科学引文数据库(CSCD)源期刊
中国科技论文统计源期刊
万方数据知识服务平台
英国《科学文摘》(SA)
美国化学文摘(CA)
俄罗斯《文摘杂志》(AJ)
德国《天文学与天体物理学文摘》(AAA)
英国《中国天文学和天体物理学》(SCI收录)全文摘译期刊之一
《中国学术期刊文摘》
《中国物理文摘》
《中国天文学文摘》

Chinese Journal of Space Science ›› 2013, Vol. 33 ›› Issue (5): 532-539.doi: 10.11728/cjss2013.05.532

Previous Articles     Next Articles

Study of Magnetospheric Shielding Effect With Energetic Particles Data From Chang’E-1

Wang Jie1,2, Qin Gang1   

  1. 1. State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190;
    2. University of Chinese Academy of Sciences, Beijing 100049
  • Received:2012-07-17 Revised:2012-05-27 Online:2013-09-25 Published:2013-08-21

Abstract:

Since about one fourth of the lunar orbit is inside the terrestrial magnetosphere, whether the Earth's magnetosphere can provide substantial magnetic shielding for energetic particles in the lunar orbit or not is essential for preparing human's exploration on lunar bases. Chang'E-1 is China's first lunar satellite, which is in a polar orbit of approximately 200km above the Moon's surface. In this paper, the data of energetic particles flux measured by the High-energy Particle Detector (HPD) onboard Chang'E-1 is analyzed, and the flux of protons at different energy channels within the energy range of 4~400MeV inside and outside the Earth's magnetosphere is compared. It is found that there is no significant decrease in the flux of protons at all the energy channels when the Moon is within the Earth's magnetotail compared with that when the Moon is in the solar wind, which indicates that the terrestrial magnetosphere could not provide any substantial magnetic shielding for the space energetic particles in the lunar orbit.

Key words: Terrestrial magnetosphere, Magnetic shielding, Lunar orbit, Chang’E-1, Energetic particles

CLC Number: