| タイトル | Observations of the Lunar Impact Plume from the LCROSS Event |
| 著者（英） | Killen, R. M.; Naidu, S.; Plymate, C.; Potter, A. E.; Hurley, D. M. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2010-12-04 |
| 言語 | eng |
| 内容記述 | We observed emission from sodium (Na) ejected from the Lunar Crater Observing and Sensing Satellite (LCROSS) impact into Cabeus Crater on October 9, 2009, using the McMath-Pierce telescope. In our 88 sq km field of view, we saw on the order of2 g of Na in the first 9 minutes after the LCROSS impact. A comparison of our observed Na above the limb with simulations that assume a gas temperature of 1000 K indicates that 0.5-2.6 (1.5 +/- 1) kg of Na were released during the LCROSS impact. Lower temperatures would result in a lower total sodium release. The model of an isotropic expanding cloud best reproduces the observations. |
| NASA分類 | Geophysics |
| レポートNO | GSFC.JA.4593.2011 |
| 権利 | Copyright |
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