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DOI | 10.1029/2018GL078407 |
Evidence Connecting Mercury's Magnesium Exosphere to Its Magnesium-Rich Surface Terrane | |
Merkel, Aimee W.1; Vervack, Ronald J., Jr.2; Killen, Rosemary M.3; Cassidy, Timothy A.1; McClintock, William E.1; Nittler, Larry R.4; Burger, Matthew H.5 | |
2018-07-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:14页码:6790-6797 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Mercury is surrounded by a tenuous, collisionless exosphere where the surface of the planet is directly exposed to the space environment. As a consequence, impacts and space weathering processes are expected to eject atoms and molecules from the surface into the exosphere, implying a direct link between the exospheric composition and the planet's regolith material. However, observational evidence demonstrating this link has been elusive. Here we report that exospheric magnesium, a species recently discovered and systematically measured by the Mercury Surface, Space ENvironment, GEochemistry, and Ranging mission, is enhanced when observed over a portion of the planet's surface regolith rich in magnesium. These observations confirm a direct link between Mercury's magnesium exosphere and the underlying crustal surface composition, providing strong evidence supporting theoretical arguments that impact vaporization can directly supply material to the exosphere from the regolith of a rocky, airless body. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000442582100005 |
WOS关键词 | X-RAY SPECTROMETER ; MESSENGER OBSERVATIONS ; CALCIUM EXOSPHERE ; ATMOSPHERE ; SODIUM ; POTASSIUM ; IMPACT |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26756 |
专题 | 气候变化 |
作者单位 | 1.Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80309 USA; 2.Johns Hopkins Appl Phys Lab, Laurel, MD USA; 3.NASA, Goddard Space Flight Ctr, Solar Syst Explorat Div, Greenbelt, MD USA; 4.Carnegie Inst Sci, Dept Terr Magnetism, Washington, DC USA; 5.Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA |
推荐引用方式 GB/T 7714 | Merkel, Aimee W.,Vervack, Ronald J., Jr.,Killen, Rosemary M.,et al. Evidence Connecting Mercury's Magnesium Exosphere to Its Magnesium-Rich Surface Terrane[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(14):6790-6797. |
APA | Merkel, Aimee W..,Vervack, Ronald J., Jr..,Killen, Rosemary M..,Cassidy, Timothy A..,McClintock, William E..,...&Burger, Matthew H..(2018).Evidence Connecting Mercury's Magnesium Exosphere to Its Magnesium-Rich Surface Terrane.GEOPHYSICAL RESEARCH LETTERS,45(14),6790-6797. |
MLA | Merkel, Aimee W.,et al."Evidence Connecting Mercury's Magnesium Exosphere to Its Magnesium-Rich Surface Terrane".GEOPHYSICAL RESEARCH LETTERS 45.14(2018):6790-6797. |
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