Improved gravity field of the moon from lunar prospector
Improved gravity field of the moon from lunar prospector
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DOI：
10.1126/science.281.5382.1476
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发表时间：
1998-09
期刊：
影响因子：
56.9
通讯作者：
A. Konopliv;A. Binder;L. Hood;A. Kucinskas;W. Sjogren;James G. Williams
中科院分区：
文献类型：
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作者：
A. Konopliv;A. Binder;L. Hood;A. Kucinskas;W. Sjogren;James G. Williams
一个改进的重力模型从多普勒跟踪月球勘探者（LP）航天器揭示了三个新的大质量浓度（mascons）在近侧的月球下方的撞击盆地海Humboltianum，孟德尔-Ryberg和席勒-祖丘斯，后者盆地没有可见的月海填充。虽然没有直接测量月球背面的重力，LP部分地解决了四个大的背面海盆赫兹普龙，库伦-萨顿，弗罗因德利希-沙罗诺夫，和莫斯科海。每个盆地的中心都有一个相对于周围盆地的重力最大值。改进的归一化极惯性矩（0.3932 +/- 0.0002）与半径为220至450公里的铁芯一致。
An improved gravity model from Doppler tracking of the Lunar Prospector (LP) spacecraft reveals three new large mass concentrations (mascons) on the nearside of the moon beneath the impact basins Mare Humboltianum, Mendel-Ryberg, and Schiller-Zucchius, where the latter basin has no visible mare fill. Although there is no direct measurement of the lunar farside gravity, LP partially resolves four mascons in the large farside basins of Hertzsprung, Coulomb-Sarton, Freundlich-Sharonov, and Mare Moscoviense. The center of each of these basins contains a gravity maximum relative to the surrounding basin. The improved normalized polar moment of inertia (0.3932 +/- 0.0002) is consistent with an iron core with a radius of 220 to 450 kilometers.