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On the Detection of Propadieneylium, H2C3H+, in Space
W. G. D. P. Silva, J. Cernicharo, S. Schlemmer, N. Marcelino, J.-C. Loison, M. Agúndez, D. Gupta, V. Wakelam, S. Thorwirth, C. Cabezas, B. Tercero, J. L. Doménech, R. Fuentetaja, W.-J. Kim, P. de Vicente, and O. Asvany
announced the
Discovery of H2CCCH+ in TMC-1,
Astron. Astrophys. 676, Art. No. L1 (2023)