===== On the Detection of Propynylidynium, //l//-C3H+, in Extragalactic Sources =====

B. Tercero, J. Cernicharo, S. Cuadrado, P. de Vicente, and M. Guélin\\
used the Yebes 40 m telescopy in the 7 mm wavelength region (rest frequencies: 58.7 − 93.5 GHz) to study the molecular content of a foreground galaxy at //z// = 0.89 in absorption toward the quasar PKS 1830-211:\\
**[[https://doi.org/10.1051/0004-6361/202037837|New Molecular Species at Redshift //z// = 0.89]]**\\
//Astron. Astrophys.// **636**, (2020) Art. No. L7.\\
The propynylidynium cation, //l//-C<sub>3</sub>H<sup>+</sup>, was identfied by three rotational transitions with good to reasonable signal-to-noise ratios and with //J// = 2 − 1 to 4 − 3.


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Contributor(s): H. S. P. Müller; 4, 2020

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