The ethynyl radical C2H - A new interstellar molecule

Details The ethynyl radical C2H - A new interstellar molecule The ethynyl radical C2H - A new interstellar molecule

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...193l.115t&link_type=abstract

Astrophysical Journal, vol. 193, Nov. 1, 1974, pt. 2, p. L115-L119. NASA-supported research.

Astronomy and Astrophysics

Astronomy

136

Free Radicals, Hydrocarbons, Interstellar Gas, Line Spectra, Molecular Spectra, Hyperfine Structure, Molecular Energy Levels, Molecular Rotation, Radio Astronomy, Tables (Data)

Scientific paper

Four new interstellar lines have been detected near 87.3 GHz. Based on laboratory ESR data these lines have been positively defined as hyperfine components of the lowest rotational transition of the ethynyl radical C2H. The observations gave precise values for the C2H rotation, spin-doubling, and hyperfine constants. C2H is probably one of the most abundant interstellar polyatomic molecules yet detected.

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