J. Cernicharo, C. Cabezas, M. Agúndez, B. Tercero, J. R. Pardo, N. Marcelino, J. D. Gallego, F. Tercero, J. A. López-Pérez, and P. de Vicente
reported on
TMC-1, the starless core sulfur factory: Discovery of NCS, HCCS, H₂CCS, H₂CCCS, and C₄S and detection of C₅S
Astron. Astrophys. 648, Art. No. L3 (2021).
The ethenthionyl radical, HCCS, was identified through 2 ¹H hyperfine components of the ²Π_3/2 J = 7/2 − 5/2 transition near 41.1 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 column density is slightly lower than that of H₂CCS and about a factor of ten lower than that of HCS.

R. Fuentetaja, M. Agúndez, C. Cabezas, B. Tercero, N. Marcelino, J. R. Pardo, P. de Vicente, and J. Cernicharo
reported on
Discovery of Two New Interstellar Molecules with QUIJOTE: HCCCHCCC and HCCCCS
Astron. Astrophys. 667, Art. No. L4 (2022).
Butatrienethionyl was detected through six consecutive transitions with 19/2 ≤ J“ ≤ 29/2 between 31.0 and 50.3 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 column densities of HCS and HCCS are about factors of 58 and 7.2, respectively, higher than those of HC₄S.

Contributor(s): H. S. P. Müller; 04, 2021; 11, 2022