Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kosis..25..849s&link_type=abstract
Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 25, Nov.-Dec. 1987, p. 849-855. In Russian.
Astronomy and Astrophysics
Astronomy
1
Cometary Atmospheres, Cosmic Dust, Grain Size, Halley'S Comet, Mass Spectrometers, Satellite-Borne Instruments, Astronomical Spectroscopy, Vega Project
Scientific paper
Vega PUMA measurements indicate that Comet Halley dust particles have a high content of light elements, which probably can be explained by the presence of organic compounds similar to those found in carbonaceous chondrites. The presence of noise in the PUMA-1 spectrum hampered the search for trace constituents, and made it impossible to prove the hypothesis that complex organic ions are present in the ion spectra. The dust-particle composition in the range of elements from Na to Fe can be explained by the presence of silicates and (in some cases) FeS troilite. The isotope ratios of the main elements (C, Mg, Si, Cl, and Fe) correspond, on the average, to isotope abundances in the solar system.
Evlanov E. N.
Mukhin Lev M.
Prilutskiĭ O. F.
Sagdeev Roal'd. Z.
Zubkov B. V.
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