The photometric functions of Phobos and Deimos. II. Surface photometry of Deimos |
| |
Authors: | M. Noland J. Veverka |
| |
Affiliation: | Laboratory for Planetary Studies, Cornell University, Ithaca, New York 14853, USA |
| |
Abstract: | To a good approximation the face of Deimos observed by Mariner 9 is covered uniformly by a dark, texturally complex material obeying a Hapke-Irvine scattering law. The intrinsic 20° to 80° phase coefficient of this material is βi = 0.017 ± 0.001 mag/deg, corresponding to a disc-integrated value of β = 0.030 mag/deg. There is also evidence of a slightly brighter (by ~30%) unit near some craters which may have been produced by the cratering events. Its texture appears to be identical to that of the average material. No evidence of quasi-specular reflection has been found, suggesting that large-scale exposures of unpulverized rock are absent. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|