Other
Scientific paper
Nov 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...334l.107i&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 334, Nov. 15, 1988, p. L107-L111. Research supported by the U.S.-
Other
38
Cyano Compounds, Interstellar Matter, Molecular Clouds, Abundance, Free Radicals, Hyperfine Structure, Methyl Compounds, Milky Way Galaxy
Scientific paper
The authors report the astronomical identification of the cyanomethyl radical, CH2CN, the heaviest nonlinear molecular radical to be identified in interstellar clouds. The complex fine and hyperfine structures of the lowest rotational transitions at about 20.12 and 40.24 GHz are resolved in TMC-1, where the abundance appears to be about 5×10-9 relative to that of H2. In Sgr B2 the hyperfine structure is blended in the higher frequency transitions at 40, 80, and 100 GHz, although the spin-rotation doubling is clearly evident. Preliminary searches in other sources indicate that the distribution of CH2CN is similar to that for such carbon chain species as HC3N or C4H.
Friberg Paul
Hjalmarson Å..
Irvine William M.
Ishikawa Sumio
Kaifu Norio
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