Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....9214969o&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 92, Dec. 30, 1987, p. 14969-14978.
Astronomy and Astrophysics
Astronomy
36
Astronomical Photometry, Spaceborne Photography, Uranus Rings, Voyager 2 Spacecraft, Albedo, Astronomical Models, Interplanetary Dust, Radiative Transfer, Reflectance, Spacecraft Instruments
Scientific paper
The rings of Uranus are characterized on the basis of an analysis of seven images obtained with a clear filter by Voyager 2 during its encounter with Uranus in January 1986. The data are presented graphically and compared with the predictions of theoretical models with different particle size distributions. Parameters determined include average particle Bond albedo 0.014 + or - 0.004, fractional area of the main rings in dust-size particles 0.002 or less, and average dust-particle size 1.0 + or - 0.3 microns for a Hansen-Hovenier (1974) distribution and a power-law distribution of spherical particles with spectral index 2.5 + or - 0.5.
Cuzzi Jeffrey N.
Johnson Torrence V.
Ockert Maureen E.
Porco Carolyn C.
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