Other
Scientific paper
Mar 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.248..121u&link_type=abstract
Nature, Volume 248, Issue 5444, pp. 121-122 (1974).
Other
48
Scientific paper
MOST current models of comets assume that the nucleus is an icy solid body containing fairly complex parent chemical compounds which sublimate and dissociate to provide the radicals and simple molecules that have been observed in cometary spectra1. Optical spectra show the presence of CN, CO+, CH, NH, OH and many others2; proposed parent molecules have included H2O, HCN, HNCO, CH3CN and H2CO3. Previous attempts to detect H2CO and H2O were unsuccessful, probably due to excessive beam dilution4,5. Here we report the first direct detection of a parent molecule, methyl cyanide (CH3CN), at a wavelength of 2.7 mm in Comet Kohoutek (1973f). At the same time we were unable to detect either CN or CO at similar wavelengths.
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