Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.2475p&link_type=abstract
Journal of Geophysical Research, vol. 88, Mar. 10, 1983, p. 2475-2484.
Astronomy and Astrophysics
Astronomy
17
Astronomical Photometry, Deimos, Mars (Planet), Phobos, Satellite Surfaces, Albedo, Ceres Asteroid, Mariner 9 Space Probe, Photointerpretation, Star Trackers, Surface Roughness, Viking Orbiter 2, Mars, Phobos, Deimos, Satellites, Disk, Photometry, Phase Curves, Brightness, Earth-Based Observations, Spacecraft Observations, Models, Albedos, Surface, Physical Properties, Density, Geochemistry, Origin, Comparisons, Characteristics, Features, Data, Viking 2 Orbiter, Viking 1 Orbiter, Mariner 9, Roughness
Scientific paper
Small scale surface features of the moons Deimos and Phobos were studied using star tracker observations made by the Mariner 9 and Viking orbiters. The whole-disk brightness/solar phase angle phase curves were developed out to a phase angle of 125 deg. An analysis was undertaken according to Lumme-Bowell theory to obtain accurate phase integrals zero-phase geometric albedos, and Bond albedos. The microstructural and particulate surface properties of the two moons were found to be very similar, as were the whole-body densities and the microphysical makeup, thereby suggesting a common origin. However, the presence of streamers on Deimos and the relatively smooth surfaces of both moons indicates a long-term influence of Mars producing surface morphologies different from what would occur with asteroids.
Bowell Edward
Hanover G. A.
Lumme Kari
Pang Kevin D.
Rhoads J. W.
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