Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icar...62...54l&link_type=abstract
Icarus (ISSN 0019-1035), vol. 62, April 1985, p. 54-71.
Astronomy and Astrophysics
Astronomy
20
Astronomical Photometry, Backscattering, Light Scattering, Polarimetry, Zodiacal Dust, Albedo, Ecliptic, Encke Comet, Gegenschein, Power Series, Radiative Transfer, Ubv Spectra
Scientific paper
A number of optical and physical parameters are derived on the basis of ground-based, spacecraft, and rocket photometry and polarimetry, under the assumption that number density, mean particle size, and albedo, vary with heliocentric distance. It is noted that average individual interplanetary particles have a small but definite opposition effect, involving a single scattering albedo in the V-band and a zero-phase geometric albedo; modeled by a power law, both decrease with increasing heliocentric distance as r to the -0.54 power. The color of dust particles and the color's variation with solar phase angle, closely resemble those of C asteroids. These findings are consistent with the zodiacal cloud's origin in collisions among asteroids.
Bowell Edward
Lumme Kari
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