===== On the Detection of Methanethiol, CH3SH, 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.\\
Methanethiol, CH<sub>3</sub>SH, also known as methyl mercaptan, was identfied by three lines of four rotational transitions with //J// = 3 − 2 and //K// = 0 or 1. The lines show good to fairly reasonable signal-to-noise ratios. 

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Contributor(s): H. S. P. Müller; 04, 2020

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