===== Detection of Oxoethenylidene, CCO, in the ISM =====

CCO has been detected first toward TMC-1:\\
M. Ohishi, H. Suzuki, S.-I. Ishikawa, C. Yamada, H. Kanamori, W. M. Irvine, R. D. Brown, P. D. Godfrey, N. Kaifu,\\
**[[https://ui.adsabs.harvard.edu/abs/1991ApJ...380L..39O|Detection of a new carbon-chain molecule, CCO]]**\\
//Astrophys. J.// **380**, L39–L42 (1991).\\
The //N<sub>J</sub>// = 1<sub>2</sub> – 0<sub>1</sub> and 2<sub>3</sub> – 1<sub>2</sub> transitions werev detected with the 43 m Green Bank telescope and the 45 m Nobeyama telecope, respectively, at 22258 and 45827 MHz.


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Contributor(s): H. S. P. Müller; 12, 2003; 09, 2012


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