Host: The Japanese Society for Planetary Sciences: Local Organizing Committee for 2006 Fall Meeting
Recently, it was shown the opposition surge, which appears in small phase angles in scattered light from surfaces of small bodies such as asteroids, appears in the light scattered by rocky surfaces.
In this study, we performed measurements of the light scattered by rock chips and particle layers at low phase angles. Measurements were performed using a multi phase angle near infrared spectrometer at Kobe University with the incident angle fixed at 2 degree and the phase angle varied within 0-25 degrees. Focus was put on how the opposition surge depends on different factors of the surface, i.e., reflectance, roughness and porosity of the surface.
We will show the results of several types of bulk chips, particle layers and sintered powders, and will discuss on the effect of the three factors above.
