A possible interpretation of bright features on the surface of PHOBOS

Details A possible interpretation of bright features on the surface of PHOBOS A possible interpretation of bright features on the surface of PHOBOS

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991p%26ss...39..341s&link_type=abstract

(Colloquium on Phobos-Mars Mission, Paris, France, Oct. 23-27, 1989, Proceedings. A91-29558 11-91) Planetary and Space Science (

Mathematics

Logic

11

Albedo, Brightness, Optical Properties, Phobos, Planetary Geology, Satellite Surfaces, Carbon Compounds, Carbonaceous Materials, Craters, Gravitational Constant, Planetary Composition, Regolith, Mars, Satellites, Phobos, Surface, Brightness, Features, Craters, Grooves, Crater Rims, Reflectance, Regolith, Analogs, Albedo, Models, Optical Properties, Laboratory Studies, Experiments, Mixing, Geology, Carbonaceous Material, Composition, Mafic Material

Scientific paper

A mechanism is presented to explain the lateral variations in the relative abundance of higher albedo and lower albedo components of an optically heterogeneous, two-component regolith. Laboratory measurements are presented of two-component mixtures and lunar telescopic observations, which both illustrate a larger brightening at low phase angles than can be explained by the classical shadowing mechanism of the opposition surge. It is then demonstrated that this effect can be explained by the interference mechanism of the opppositions surge. Possible geologic explanations for the implied lateral variation in regolith optical properties on Phobos are discussed.

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