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| molecules:ism:c5h3n-isomere [2021/04/12 16:22] – mueller | molecules:ism:c5h3n-isomere [2021/08/26 13:32] (current) – mueller |
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| **[[https://doi.org/10.3847/2041-8213/abdbb9|Discovery of Interstellar //trans//-Cyanovinylacetylene (HC≡CCH=CHC≡N) and Vinylcyanoacetylene (H<sub>2</sub>C=CHC<sub>3</sub>N) in GOTHAM Observations of TMC-1]]**\\ | **[[https://doi.org/10.3847/2041-8213/abdbb9|Discovery of Interstellar //trans//-Cyanovinylacetylene (HC≡CCH=CHC≡N) and Vinylcyanoacetylene (H<sub>2</sub>C=CHC<sub>3</sub>N) in GOTHAM Observations of TMC-1]]**\\ |
| //Astrophys. J. Lett.// **908**, Art. No. L11 (2021).\\ | //Astrophys. J. Lett.// **908**, Art. No. L11 (2021).\\ |
| The observations were obtained in the course of the line survey Green Bank Telescope Observations of TMC-1: Hunting for Aromatic Molecules. The data were recorded with very high resolution which resolves, at least in part, the complex velocity structure and the <sup>14</sup>N hyperfine structure splitting. //trans//-E-Cyanovinylacetylene and cyanoethynylethene (aka 4-penten-2-ynenitrile, here called vinylcyanoacetylene) were indentified through line-stacking with decent signal-to-noise ratios and very similar abundances. The significance of the cyanoethynylethene detections is somewhat on the edge (5.5σ). Two other isomers, //trans//-Z-Cyanovinylacetylene and //cis//-cyanovinylacetylene, were not identified. | The observations were obtained in the course of the line survey Green Bank Telescope Observations of TMC-1: Hunting for Aromatic Molecules. The data were recorded with very high resolution which resolves, at least in part, the complex velocity structure and the <sup>14</sup>N hyperfine structure splitting. 2E-Penten-4-ynenitrile (here called //trans//-E-cyanovinylacetylene) and cyanoethynylethene (aka 4-penten-2-ynenitrile, here called vinylcyanoacetylene) were indentified through line-stacking with decent signal-to-noise ratios and very similar abundances. The significance of the cyanoethynylethene detections is somewhat on the edge (5.5σ). Two other isomers, 2Z-Penten-4-ynenitrile (here called //trans//-Z-cyanovinylacetylene) and 2-methylene-3-butynenitrile (here called //cis//-cyanovinylacetylene), were not identified.\\ |
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