Cyanide and isocyanide abundances in the cold, dark cloud TMC-1

Details Cyanide and isocyanide abundances in the cold, dark cloud TMC-1 Cyanide and isocyanide abundances in the cold, dark cloud TMC-1

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...282..516i&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 282, July 15, 1984, p. 516-521.

Other

77

Abundance, Astronomical Spectroscopy, Cyanides, Interstellar Chemistry, Interstellar Matter, Molecular Clouds, Emission Spectra, Isocyanates, Nebulae, Ratios

Scientific paper

Cold, dark molecular clouds are particularly useful for the study of interstellar chemistry because their physical parameters are better understood than those of heterogeneous, complex giant molecular clouds. Another advantage is their relatively small distance from the solar system. The present investigaation has the objective to provide accurate abundance ratios for several cyanides and isocyanides in order to constrain models of dark cloud chemistry. The relative abundances of such related species can be particularly useful for the study of chemical processes. The cloud TMC-1 considered in the current study has a remarkably high abundance of acetylene and polyacetylene derivatives. Data at 3 mm, corresponding to the J = 1 to 0 transitions of HCN, H(C-13)N, HN(C-13), HC(N-15), and H(N-15)C were obtained.

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