| タイトル | Mercury's Exosphere During MESSENGER's Second Flyby: Detection of Magnesium and Distinct Distributions of Neutral Species |
| 本文（外部サイト） | http://hdl.handle.net/2060/20110023011 |
| 著者（英） | Sprague, Ann L.; Killen, Rosemary M.; Mouawad, Nelly; Burger, Matthew H.; McClintock, William E.; Vervack, Ronald J., Jr.; Solomon, Sean C.; Izenberg, Noam R.; Bradley, E. Todd |
| 著者所属（英） | Colorado Univ. |
| 発行日 | 2009-02-18 |
| 言語 | eng |
| 内容記述 | During MESSENGER's second Mercury flyby, the Mercury Atmospheric and Surface Composition Spectrometer observed emission from Mercury's neutral exosphere. These observations include the first detection of emission from magnesium. Differing spatial distributions for sodium, calcium, and magnesium were revealed by observations beginning in Mercury's tail region, approximately 8 Mercury radii anti-sunward of the planet, continuing past the nightside, and ending near the dawn terminator. Analysis of these observations, supplemented by observations during the first Mercury flyby as well as those by other MESSENGER instruments, suggests that the distinct spatial distributions arise from a combination of differences in source, transfer, and loss processes. |
| NASA分類 | Lunar and Planetary Science and Exploration |
| レポートNO | GSFC.JA.5252.2011 |
| 権利 | Copyright, Distribution under U.S. Government purpose rights |
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