Detection of m/q=2 pickup ions in the plasma environment of the Moon: The trace of exospheric H-2(+)

	Detection of m/q=2 pickup ions in the plasma environment of the Moon: The trace of exospheric H-2(+)
	Wang, X. -D.1,2; Zong, Q. -G.3; Wang, J. -S.4; Cui, J.1 ; Reme, H.5; Dandouras, I.5; Aoustin, C.5; Tan, X.1 ; Shen, J.1; Ren, X.1
刊名	GEOPHYSICAL RESEARCH LETTERS
	2011-07-16
卷号	38
英文摘要	The Solar Wind Ion Detectors (SWIDs) on the Chang' E-1 spacecraft, while orbiting the Moon, occasionally observed two continuous flux peaks with energies not exceeding 8 and 4 times that of the prevailing solar wind proton energy. These form parallel curves (PCs) with an energy ratio of 2 in the energy-time spectrogram. The fluxes of the two curves are comparable, around 10(-5) similar to 10(-4) of the solar wind flux. The pitch angle distribution of PC particles is concentrated around 90 degrees. The velocity space distribution of PC particles shows distinct double-ring feature, suggesting the existence of a pickup ion species with m/q = 2. Pickup ions from local interstellar medium, the inner sources and the lunar exosphere are investigated. We conclude that this observation may be the first in situ evidence for H-2(+) ions in the lunar exosphere, thus providing new insights on the evolution and fate of solar wind hydrogen in the solar system. Citation: Wang, X.-D., et al. (2011), Detection of m/q = 2 pickup ions in the plasma environment of the Moon: The trace of exospheric H-2(+), Geophys. Res. Lett., 38, L14204, doi: 10.1029/2011GL047488.
收录类别	SCI
语种	英语
WOS记录号	WOS:000292835100001
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/8025]
专题	国家天文台_月球与深空探测研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100012, Peoples R China 3.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 4.Natl Ctr Space Weather, Beijing 100081, Peoples R China 5.Univ Toulouse, CNRS, IRAP, F-31028 Toulouse 4, France
推荐引用方式 GB/T 7714	Wang, X. -D.,Zong, Q. -G.,Wang, J. -S.,et al. Detection of m/q=2 pickup ions in the plasma environment of the Moon: The trace of exospheric H-2(+)[J]. GEOPHYSICAL RESEARCH LETTERS,2011,38.
APA	Wang, X. -D..,Zong, Q. -G..,Wang, J. -S..,Cui, J..,Reme, H..,...&Ouyang, Z. -Y..(2011).Detection of m/q=2 pickup ions in the plasma environment of the Moon: The trace of exospheric H-2(+).GEOPHYSICAL RESEARCH LETTERS,38.
MLA	Wang, X. -D.,et al."Detection of m/q=2 pickup ions in the plasma environment of the Moon: The trace of exospheric H-2(+)".GEOPHYSICAL RESEARCH LETTERS 38(2011).