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J. Cernicharo, C. Cabezas, J. R. Pardo, M. Agúndez, C. Bermúdez, L. Velilla-Prieto, F. Tercero, J. A. López-Pérez, J. D. Gallego, J. P. Fonfría, G. Quintana-Lacaci, M. Guélin, and Y. Endo
reported on the
Discovery of two new magnesium-bearing species in IRC+10216: MgC<sub>3</sub>N and MgC<sub>4</sub>H
Astron. Astrophys. 630, Art. No. L2 (2019).
The 40 m Centro Astronómico de Yebes dish and the IRAM 30 m dish were employed to observed 22 rotational transitions of magnesium monocyanoacetylide, MgC3N, between 33 and 111 GHz toward the famous near-by carbon-rich AGB star CW Leonis. Many transitions show decent to good signal-to-noise ratios and are not or only slightly blended. The astronomical data were employed to derive spectroscopic parameters in the absence of laboratory data.

Contributor(s): H. S. P. Müller; 10, 2019

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