THE SMALL INNER SATELLITES OF JUPITER
THE SMALL INNER SATELLITES OF JUPITER
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DOI：
10.1006/icar.1998.5976
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发表时间：
1998-09
期刊：
影响因子：
3.2
通讯作者：
P. Thomas;J. Burns;L. Rossier;D. Simonelli;J. Veverka;C. Chapman;K. Klaasen;T. Johnson;M. Belton
中科院分区：
文献类型：
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作者：
P. Thomas;J. Burns;L. Rossier;D. Simonelli;J. Veverka;C. Chapman;K. Klaasen;T. Johnson;M. Belton
摘要伽利略固态成像（SSI）实验获得的四颗内部小木星卫星的图像比旅行者号先前提供的图像具有更详细的形状、颜色和光度信息。这些卫星是同步旋转的，没有显示出双星或分叉的形状。忒贝和阿玛尔泰亚的大陨石坑密度大约在“经验平衡”水平。墨提斯、阿玛尔泰娅和忒贝的正面都比它们的背面亮25-35%;这三颗卫星的全球平均透明滤光片（λ = 0.64 μm）几何散射度分别为0.063、0.091和0.049。观测到一个明确的颜色梯度，靠近木星的卫星更红：平均紫/绿色比（0.42/0.56 μm）从底比斯到墨提斯逐渐减小。底比斯和阿马尔西亚落后球队的这一比例也低于领先球队。阿玛尔泰亚和底比斯的亮点很小（
Abstract The images of the four inner small jovian satellites obtained by the Galileo Solid State Imaging (SSI) experiment have much more detailed shape, color, and photometric information than were provided previously by Voyager images. The satellites are in synchronous rotation and show no binary or bifurcated shapes. Thebe and Amalthea have densities of large craters approximately at “empirical equilibrium” levels. The leading sides of Metis, Amalthea, and Thebe are all 25–35% brighter than their trailing sides; the global-average, clear-filter (λ = 0.64 μm) geometric albedos of these three satellites are 0.063, 0.091, and 0.049, respectively. A definite color gradient is observed, with the satellites closer to Jupiter being redder: the mean violet/green ratio (0.42/0.56 μm) decreases from Thebe to Metis. This ratio also is lower for the trailing sides of Thebe and Amalthea than for their leading sides. Bright spots on Amalthea and Thebe are small (