J. Cernicharo, C. Cabezas, M. Agúndez, R. Fuentetaja, B. Tercero, N. Marcelino, and P. de Vicente
announced
More sulphur in TMC-1: Discovery of the NC₃S and HC₃S radicals with the QUIJOTE line survey
Astron. Astrophys. 688, Art. No. L13 (2024).
Cyanoethynylsulfanyl in it ²π_3/2 lower spin ladder was detected through five consecutive transitions with 23/2 ≤ J' ≤ 33/2 between 33.0 and 47.5 GHz in the course of a molecular line survey of the prototypical cold dark molecular cloud TMC-1 carried out with the Yebes 40 m radio telescope. The first two lines display somewhat and barely resolved ¹⁴N hyperfine structure splitting, respectively. The next two lines are somewhat broadened, and the last line is blended. Members with n = 2 and n ≥ 4 were not detected. The abundance ratios of NCS/NC₃S is about 5.6.

Contributor(s): H. S. P. Müller; 08, 2024