DOI: 10.1002/2016GL071284
论文题名: New discoveries from MESSENGER and insights into Mercury's exosphere
作者: Vervack R.J. ; Jr. ; Killen R.M. ; McClintock W.E. ; Merkel A.W. ; Burger M.H. ; Cassidy T.A. ; Sarantos M.
刊名: Geophysical Research Letters
ISSN: 0094-8403
EISSN: 1944-8134
出版年: 2016
卷: 43, 期: 22 起始页码: 11545
结束页码: 11551
语种: 英语
英文关键词: mercury's exosphere
; MESSENGER mission
Scopus关键词: Aluminum
; Aluminum
; Calcium
; Calcium
; Ionization
; Ionization
; Ionosphere
; Ionosphere
; Manganese
; Manganese
; Orbits
; Orbits
; Ground-based observations
; Ground-based observations
; MErcury Surface
; MErcury Surface
; Mercury's exosphere
; Mercury's exosphere
; MESSENGER mission
; MESSENGER mission
; Orbital phase
; Orbital phase
; Space environment
; Space environment
; Mercury (metal)
; Mercury (metal)
英文摘要: For most of the orbital phase of the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission, a regular search for weakly emitting or less abundant species in Mercury's exosphere resulted in nondetections. However, during the final Earth year of the mission, emission from multiple lines of manganese, aluminum, and ionized calcium was detected. These observations validate the detection of a single line of ionized calcium during the third MESSENGER Mercury flyby, provide definitive confirmation for weak aluminum detections in ground-based observations, and represent the discovery of manganese in Mercury's exosphere. These detections occurred over a limited range of predawn local times and Mercury true anomaly angles (0°–70°), and each has a distinct spatial distribution. Equally interesting is the absence of detectable emission from oxygen at limits well below the levels reported for Mariner 10. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85003875081&doi=10.1002%2f2016GL071284&partnerID=40&md5=26b32b322a0989c7521dfed15eee3376
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9366
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: Johns Hopkins Applied Physics Laboratory, Laurel, MD, United States
Recommended Citation:
Vervack R.J.,Jr.,Killen R.M.,et al. New discoveries from MESSENGER and insights into Mercury's exosphere[J]. Geophysical Research Letters,2016-01-01,43(22).