molecules:ism:cyanocoronen

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molecules:ism:cyanocoronen [2025/05/15 13:50] muellermolecules:ism:cyanocoronen [2025/05/15 14:03] (current) mueller
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 G. Wenzel, S. Gong, C. Xue, P. B. Changala, M. S. Holdren, T. H. Speak, D. A. Stewart, Z. T. P. Fried, R. H. J. Willis, E. A. Bergin, A. M. Burkhardt, A. N. Byrne, S. B. Charnley, A. Lipnicky, R. A. Loomis, C. N. Shingledecker, I. R. Cooke, M. C. McCarthy, A. J. Remijan, A. E. Wendlandt, and B. A. McGuire\\ G. Wenzel, S. Gong, C. Xue, P. B. Changala, M. S. Holdren, T. H. Speak, D. A. Stewart, Z. T. P. Fried, R. H. J. Willis, E. A. Bergin, A. M. Burkhardt, A. N. Byrne, S. B. Charnley, A. Lipnicky, R. A. Loomis, C. N. Shingledecker, I. R. Cooke, M. C. McCarthy, A. J. Remijan, A. E. Wendlandt, and B. A. McGuire\\
 a<nnounced the\\ a<nnounced the\\
-**[[https://doi.org/10.3847/2041-8213/adc911|Discovery of the Seven-ring Polycyclic Aromatic Hydrocarbon Cyanocoronene (C24H11CN) in GOTHAM Observations of TMC-1]]**\\+**[[https://doi.org/10.3847/2041-8213/adc911|Discovery of the Seven-ring Polycyclic Aromatic Hydrocarbon Cyanocoronene (C<sub>24</sub>H<sub>11</sub>CN) in GOTHAM Observations of TMC-1]]**\\
 //Astrophys. J. Lett.// **984**, Art. No. L36 (2025).\\ //Astrophys. J. Lett.// **984**, Art. No. L36 (2025).\\
-The molecule was identified in the course of the GOTHAM survey of TMC-1 casrried out with the 100 m GBT dish. Several oblate paired //a//-type rotational transitions with 31 ≤ //J// ≤ 37 and //K<sub>c</sub>// close to //J//Each pair of lines is close to the noise limit, but stacking achieves a S/N of about 7. The derived column density is, for example, about twice that of each of 1- and 2-cyanonaphtalene and only slightly less than that of benzonitrile.\\+The molecule was identified in the course of the GOTHAM survey of TMC-1 carried out with the 100 m GBT dish. Several oblate paired //a//-type rotational transitions were observedSeveral of these had an S/N of about 3; stacking improved the result. The derived column density is comparable to many related aromatic cyano derivativeshighest among individual presently known ones. A rotational temperature of 6 K was derived with great accuracy.\\
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