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| molecules:ism:hccs-plus [2022/03/08 15:44] – created mueller | molecules:ism:hccs-plus [2023/06/27 12:58] (current) – mueller |
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| ===== On the Detection of Thioketenylium, HCCS<sup>+</sup>, in the ISM ===== | ===== On the Detection of Thioketenylium, HCCS<sup>+</sup>, in the ISM ===== |
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| C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, Y. Endo, R. Fuentetaja, J. R. Pardo, P. de Vicente, and J. Cernicharo\\ | C. Cabezas, M. Agúndez, N. Marcelino, B. Tercero, Y. Endo, R. Fuentetaja, J. R. Pardo, P. de Vicente, and J. Cernicharo\\ |
| reported on the\\ | reported on the\\ |
| **[[https://doi.org/10.1051/0004-6361/202142815|Discovery of the Elusive Thioketenylium, HCCS<sup>+</sup>, in TMC-1]]**\\ | **[[https://doi.org/10.1051/0004-6361/202142815|Discovery of the Elusive Thioketenylium, HCCS<sup>+</sup>, in TMC-1]]**\\ |
| //Astron. Astrophys.// **654**, Art. No. A45 (2021).\\ | //Astron. Astrophys.// **654**, Art. No. A45 (2021).\\ |
| The aminomethylidyne isomer was observed in the course of molecular line surveys of L483 and B1-b protostellar objects carried out at 3 mm using the IRAM 30 m telescope. The molecule was not detected in corresponding data of the prestellar core TMC-1. The column densities of H<sub>2</sub>CN and H<sub>2</sub>NC were essentially the same in the first two sources.\\ | Thioketenylium, HCCS<sup>+</sup>, was observed in the course of molecular line surveys of TMC-1 carried out at 7 and 3 mm using the Yebes 40 m and IRAM 30 m telescopes, respectively. Rotational transitions with //N// = 2 − 1 to 4 − 3 and 6 − 5 to 8 − 7 were identified between 32.1 and 99.7 GHz with resolved fine and <sup>1</sup>H hyperfine splitting (not all fine structure components were covered). The CCS/HCCS<sup>+</sup> column density ratio of 50 ± 10 is similar to those of CS/HCS<sup>+</sup> (35 ± 8) and CCCS/HCCCS<sup>+</sup> (65 ± 20).\\ |
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