Physics
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.250b..17v&link_type=abstract
In ESA Proceedings of the 20th ESLAB Symposium on the Exploration of Halley's Comet. Volume 2: Dust and Nucleus p 17-23 (SEE N87
Physics
6
Cosmic Dust, Halley'S Comet, Mass Spectra, Spatial Distribution, Mass Distribution, Particle Laden Jets, Vega Project
Scientific paper
Spatial distribution of cometary dust particles in the six decade mass ranges, ≡10-10 to ≡10-16g, was obtained with plasma impact detector SP-1 on VEGA-1 and -2. Mass spectrum continues to rise below ≡10-14g. Selective light absorption influences 10-12 - 10-14g particles throughout radial interval 104 - 2×105km. Existence of several dust parabolloids is suggested with different properties of grains. Evidences of evolution of grains are found. Spatial dispersion of masses in distinct dust jet observed on VEGA-2 was used to evaluate the dust velocity dispersion and to associate the motion of particles with the rotation of nucleous.
Omelchenko Alexander
Smirnov Valeri V.
Vaisberg Oleg
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