Radar observations at 3.5 and 12.6 cm wavelength of asteroid 433 Eros
Radar observations at 3.5 and 12.6 cm wavelength of asteroid 433 Eros
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小行星 433 Eros 在 3.5 和 12.6 厘米波长处的雷达观测
DOI：
10.1016/0019-1035(76)90079-8
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发表时间：
1976
期刊：
影响因子：
--
通讯作者：
R. Goldstein
中科院分区：
文献类型：
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作者：
R. Jurgens;R. Goldstein
使用3.5和12.6厘米雷达波对小行星433 Eros进行的研究表明，其表面比用这种方法观察到的任何行星或月球表面都要粗糙得多。一个表面完全覆盖着锋利的边缘，坑，地下洞，或嵌入块的规模大小的顺序，我们的波长似乎是指。一个模型的基础上，一个粗糙的旋转三轴椭球半径在18.6和7.9公里的旋转赤道同意与我们的数据，虽然一个强大的摆动的明显的中心频率的频谱旋转的进展表明，一边可能是反射比其他，或更有可能，投影轴的旋转不相等地划分投影面积。
A study of the asteroid 433 Eros using 3.5 and 12.6 cm radar waves indicates that the surface is very much rougher than any planetary or lunar surface observed by this method. A surface completely covered with sharp edges, pits, subsurface holes, or embedded chunks with scale sizes on the order of our wavelengths seems to be indicated. A model based on a rough rotating triaxial ellipsoid having radii in the rotation equator of 18.6 and 7.9 km agrees well with our data, although a strong wobble in the apparent center frequency of the spectra as rotation progresses indicates that one side may be more reflective than the other, or more likely, that the projected axis of rotation does not equally divide the projected area.