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| molecules:ism:hc4nc [2020/10/08 15:08] – mueller | molecules:ism:hc4nc [2020/10/08 15:11] – mueller |
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| **[[https://doi.org/10.3847/2041-8213/aba631|Detection of Interstellar HC<sub>4</sub>NC and an Investigation of Isocyanopolyyne Chemistry under TMC-1 Conditions]]**\\ | **[[https://doi.org/10.3847/2041-8213/aba631|Detection of Interstellar HC<sub>4</sub>NC and an Investigation of Isocyanopolyyne Chemistry under TMC-1 Conditions]]**\\ |
| //Astrophys. J. Lett.// **900**, Art. No. L9 (2020).\\ | //Astrophys. J. Lett.// **900**, Art. No. L9 (2020).\\ |
| 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 at the expense of noise levels of about the same level as the individual lines. The analysis was improved by employing a stacking technique. The HC<sub>4</sub>NC to HC<sub>4</sub>CN ratio is about 1 to 200, while the HC<sub>2</sub>NC to HC<sub>2</sub>CN ratio is about 1 to 50.\\ | 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 of the //J// = 8 → 7, 9 → 9, and 10 → 9 transitions near 22.4, 25.2, and 28.0 GHz at the expense of noise levels of about the same level as the individual lines. The analysis was improved by employing a stacking technique. The HC<sub>4</sub>NC to HC<sub>4</sub>CN ratio is about 1 to 200, while the HC<sub>2</sub>NC to HC<sub>2</sub>CN ratio is about 1 to 50.\\ |
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| Almost at the same time,\\ | Almost at the same time,\\ |