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On Extragalactic Protonated Acetylene
S. Muller, R. Le Gal, E. Roueff, J. H. Black, A. Faure, M. Guélin, A. Omont, M. Gérin, F. Combes, and S. Aalto
reported on the
First Extragalactic Detection of a Phosphorus-bearing Molecule with ALCHEMI: Phosphorus Nitride (PN)
Astron. Astrophys. 659, (2022) Art. No. A158.