Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kosis..25..810g&link_type=abstract
Kosmicheskie Issledovaniia (ISSN 0023-4206), vol. 25, Sept.-Oct. 1987, p. 810-814. In Russian.
Astronomy and Astrophysics
Astronomy
Astronomical Spectroscopy, Comet Nuclei, Halley'S Comet, Hydrocarbons, Vega Project, Alkanes, Emission Spectra, Flux Density, Infrared Spectroscopy
Scientific paper
The structure of the 3.35 band in the Comet Halley spectrum attributed to characteristic oscillations of C-H bonds in hydrocarbons has been investigated with the Vega-1 IKS IR spectrometer, assuming that the radiating matter is in a gaseous state. It is suggested that the band structure can be explained by alkanes more complex than ethane or naphthenes. The necessary presence of molecules of one class of unsaturated hydrocarbons, polyenes, must also be assumed. The flux of hydrocarbon molecules emitted by the Comet Halley nucleus on March 6, 1986 was found to equal 1.3 x 10 to the 29th/s; this flux included a carbon atom flux of about 4 x 10 to the 29th/s.
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