DOI: 10.1002/2015GL064324
论文题名: The search for electrostatically lofted grains above the Moon with the Lunar Dust Experiment
作者: Szalay J.R. ; Horányi M.
刊名: Geophysical Research Letters
ISSN: 0094-9246
EISSN: 1944-8977
出版年: 2015
卷: 42, 期: 13 起始页码: 5141
结束页码: 5146
语种: 英语
英文关键词: Dust
; Exospheres
; Moon
Scopus关键词: Dust
; Orbits
; Altitude range
; Detection limits
; Dust detectors
; Dust environment
; Exospheres
; Explorer missions
; Lunar atmospheres
; Single particle detection
; Moon
; dust
; electrokinesis
; Moon
; planetary atmosphere
; signal
英文摘要: The Lunar Dust Experiment (LDEX) on board the Lunar Atmosphere and Dust Environment Explorer mission was designed to make in situ dust measurements while orbiting the Moon. Particles with radii a >∼0.3μm were detected as single impacts. LDEX was also capable of measuring the collective signal generated from dust impacts with sizes below its single-particle detection threshold. A putative population of electrostatically lofted grains above the lunar terminator with radii of approximately 0.1μm has been suggested to exist since the Apollo era. LDEX performed the first search with an in situ dust detector for such a population. Here we present the results of the LDEX observations taken over the lunar terminator and report that within LDEX's detection limits, we found no evidence of electrostatically lofted grains in the altitude range of 3-250km above the lunar terminator. Key Points The first in situ search for lofted lunar terminator dust was performed The first in situ upper bound for this population is estimated as 100m-3 Without a height dependence, no evidence for this putative population was found. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938118431&doi=10.1002%2f2015GL064324&partnerID=40&md5=ef7350e83d336f01ff65fe602248d982
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8862
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: Department of Physics, University of Colorado Boulder, Boulder, CO, United States
Recommended Citation:
Szalay J.R.,Horányi M.. The search for electrostatically lofted grains above the Moon with the Lunar Dust Experiment[J]. Geophysical Research Letters,2015-01-01,42(13).