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| molecules:ism:cyanopyren [2025/02/24 16:11] – mueller | molecules:ism:cyanopyren [2025/05/15 13:51] (current) – mueller |
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| **[[https://doi.org/10.1126/science.adq6391|Detection of Interstellar 1-Cyanopyrene: A Four-ring Polycyclic Aromatic Hydrocarbon]]**\\ | **[[https://doi.org/10.1126/science.adq6391|Detection of Interstellar 1-Cyanopyrene: A Four-ring Polycyclic Aromatic Hydrocarbon]]**\\ |
| //Science// **386**, 810−813 (2024).\\ | //Science// **386**, 810−813 (2024).\\ |
| 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 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 CfA issued a **[[https://www.cfa.harvard.edu/news/astronomers-discover-new-building-blocks-complex-organic-matter|press release]]**.\\ | The CfA issued a **[[https://www.cfa.harvard.edu/news/astronomers-discover-new-building-blocks-complex-organic-matter|press release]]**.\\ |
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