Kobe University Graduate School of Science and Technology
Kobe University Graduate School of Science and Technology
Technische Universitat Braunschweig Institut fur Geophysik und Extraterrestrische Physik
Kobe University Graduate School of Science and Technology
出版者
宇宙航空研究開発機構宇宙科学研究本部
出版者（英）
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
雑誌名
第39回月・惑星シンポジウム
雑誌名(英)
Proceedings of the 39th ISAS Lunar and Planetary Symposium
ページ
174 - 177
発行年
2006-08-07
抄録（英）
We measured the reflectance change of high-porosity dust agglomerate (so-called dust cake) at small phase angle. The wavelength ranged from 0.97 to 1.6 micrometer. The porosity of the dust cake was varied from about 84 to 70 percent. We searched for changes in the behavior of opposition surge with respect to porosity, which was predicted by a previous numerical simulation. However, the results of our measurements do not indicate any systematic dependence of the opposition surge on the porosity of the dust cake. This is probably why the porosity of the near surface zone does not change with imposed pressure (from about 10(exp 3) to 2 x 10(exp 4) Pa). On the other hand, the opposition surge is more enhanced at the wavelength where the reflectance is lower. This tendency is consistent with the opposition surge found for high albedo asteroids.
Measurement of the light scattering properties of high-porosity dust cake
