Detection of the propargyl radical at λ 3 mm M. Agúndez, N. Marcelino, C. Cabezas, R. Fuentetaja, B. Tercero, P. de Vicente and J. Cernicharo A&A, 657 (2022) A96 Published online: 17 January 2022 DOI: 10.1051/0004-6361/202142678