DOI: 10.1002/2016GL069715
论文题名: ARTEMIS observations of terrestrial ionospheric molecular ion outflow at the Moon
作者: Poppe A.R. ; Fillingim M.O. ; Halekas J.S. ; Raeder J. ; Angelopoulos V.
刊名: Geophysical Research Letters
ISSN: 0094-8960
EISSN: 1944-8691
出版年: 2016
卷: 43, 期: 13 起始页码: 6749
结束页码: 6758
语种: 英语
英文关键词: ion outflow
; lunar exosphere
; lunar volatiles
; magnetotail
; molecular ions
Scopus关键词: Boundary layers
; Electromagnetic fields
; Heavy ions
; Ion sources
; Ionosphere
; Magnetohydrodynamics
; Magnetosphere
; Molecular oxygen
; Ion outflow
; Lunar exospheres
; Lunar volatiles
; Magnetotails
; Molecular ions
; Moon
; electrodynamics
; electromagnetic field
; ion
; ionosphere
; lunar phase
; magnetohydrodynamics
; magnetopause
; magnetosphere
; magnetotail
; Moon
; numerical model
; outflow
; spacecraft
; velocity profile
英文摘要: The Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS) spacecraft observes outflowing molecular ionospheric ions at lunar distances in the terrestrial magnetotail. The heavy ion fluxes are observed during geomagnetically disturbed times and consist of mainly molecular species (N+ 2, NO+, and O+ 2, approximately masses 28–32 amu) on the order of 105–106 cm−2 s−1 at nearly identical velocities as concurrently present protons. By performing backward particle tracing in time-dependent electromagnetic fields from the magnetohydrodynamic Open Global Geospace Circulation Model of the terrestrial magnetosphere, we show that the ions escape the inner magnetosphere through magnetopause shadowing near noon and are subsequently accelerated to common velocities down the low-latitude boundary layer to lunar distances. At the Moon, the observed molecular ion outflow can sputter significant fluxes of neutral species into the lunar exosphere while also delivering nitrogen and oxygen to the lunar volatile inventory. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978863627&doi=10.1002%2f2016GL069715&partnerID=40&md5=4c4a11298a504c29362aefbcc8c01072
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9923
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Space Sciences Laboratory, University of California, Berkeley, CA, United States
Recommended Citation:
Poppe A.R.,Fillingim M.O.,Halekas J.S.,et al. ARTEMIS observations of terrestrial ionospheric molecular ion outflow at the Moon[J]. Geophysical Research Letters,2016-01-01,43(13).