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Experimental Results on Scattering by Irregular and Meteoritic Dust Particles Related to Photopolarimetry of Zodiacal Light and Comets

Published online by Cambridge University Press:  12 April 2016

K. Weiss-Wrana
Affiliation:
Ruhr-Universität Bochum, Bereich Extraterrestrische Physik P.O. Box 10 21 48 4630 Bochum 1, F.R.G.
R.H. Giese
Affiliation:
Ruhr-Universität Bochum, Bereich Extraterrestrische Physik P.O. Box 10 21 48 4630 Bochum 1, F.R.G.
R.H. Zerull
Affiliation:
Ruhr-Universität Bochum, Bereich Extraterrestrische Physik P.O. Box 10 21 48 4630 Bochum 1, F.R.G.

Abstract

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The investigations of light scattering by larger meteoritic and terrestrial single grains (size range 20 μm to 120 μm ) demonstrate that the scattering properties of irregularly shaped dark opaque particles with very rough surfaces resemble the characteristic features of the empirical scattering function as derived from measurements of the zodiacal light. Purely transparent or translucent irregularly shaped particles show a quite different scattering behaviour. Furthermore irregular and multicomponent fluffy particles in the size range of a few microns were modelled by microwave analog measurements in order to explain positive and negative polarization of the light scattered by cometary dust grains.

Type
IV. Optical Studies of Dust
Copyright
Copyright © Reidel 1985

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