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| molecules:ism:ch3c4h [2025/11/28 13:18] – mueller | molecules:ism:ch3c4h [2025/11/28 13:27] (current) – mueller |
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| **[[https://doi.org/10.1051/202557754|Detection of Six Isotopologues of CH<sub>3</sub>CCCCH in TMC-1 with the QUIJOTE Line Survey]]**,\\ | **[[https://doi.org/10.1051/202557754|Detection of Six Isotopologues of CH<sub>3</sub>CCCCH in TMC-1 with the QUIJOTE Line Survey]]**,\\ |
| //Astron. Astrophys.// **703** Art. No. L22 (2025).\\ | //Astron. Astrophys.// **703** Art. No. L22 (2025).\\ |
| | With an increase of the signal-to-noise ratio in comparison to the previous item, the authors were able to identify transition with //J// = 8 to 12 and //K<sub>a</sub>// ≤ 1 of all five singly substituted <sup>13</sup>C isotopologs and of CH<sub>3</sub>C<sub>4</sub>D with reasonable to good S/N and mostly not or only slightly blended. The lowest //J// pair of CH<sub>3</sub>C<sub>4</sub>D transitions was not covered. The <sup>12</sup>C/<sup>13</sup>C ratio is 93 ± 11, while the H/D ratio in the case of CH<sub>3</sub>C<sub>4</sub>D is 54 ± 8.\\ |
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