molecules:ism:h2c3n [CDMS classic documentation]

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===== On the Detection of Cyanovinyl Radicals in Space =====

C. Cabezas, J. Tang, M. Agúndez, K. Seiki, Y. Sumiyoshi, Y. Ohshima, B. Tercero, N. Marcelino, R. Fuentetaja, P. de Vicente, Y. Endo, and J. Cernicharo\\
announced the \\
**[[https://doi.org/10.1051/0004-6361/202347385|Laboratory and Astronomical Discovery of the Cyanovinyl Radical H2CCCN]]**,\\
//Astron. Astrophys.// **676**, Art. No. L1 (2023)\\
Two //a//-type transitions with //J// = 4 − 3 and 5 − 4 and //K<sub>a</sub>// = 0 around 34.9 and 43.65 GHz were detected in several fine and hyperfine components in the course of the QUIJOTE line survey carried out with the Yebes 40 m dish. Some of the lines were blended to different degrees. A rotational temperature of ~6 K was adopted. The molecule is about a factor of 26 less abundant than vinyl cyanide.\\
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Contributor(s): H. S. P. Müller; 08, 2023

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