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| molecules:ism:mgc2 [2022/12/16 10:19] – created mueller | molecules:ism:mgc2 [2022/12/16 13:39] (current) – mueller |
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| ===== On the Detection of MgC2 in Circumstellar Envelopes ===== | ===== On the Detection of MgC<sub>2</sub> in Circumstellar Envelopes ===== |
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| | Magnesiacyclopropynylidene, MgC<sub>2</sub>, is somewhat related to silacyclopropynylidene, SiC<sub>2</sub>.\\ |
| | P. B. Changala, H. Gupta, J. Cernicharo, J. R. Pardo, M. Agúndez, C. Cabezas, B. Tercero, M. Guélin, and M. C. McCarthy\\ |
| | reported on the\\ |
| | **[[https://doi.org/10.3847/2041-8213/aca144|Laboratory and Astronomical Discovery of Magnesium Dicarbide, MgC<sub>2</sub>]]**\\ |
| | //Astrophys. J. Lett// **940**, Art. No. L42 (2022).\\ |
| | Ten //a//-type lines with 1 ≤ //J// ≤ 7 and //K<sub>a</sub>// ≤ 4 between 41 and 150 GHz were identified for the main <sup>24</sup>Mg isotopolog employing the Yebes 40 m and IRAM 30 m dishes in the couses of molecular line surveys of CW Leonis. These lines have good to reasonable signal-to-noise ratios, and several lines are unblended. One and three lines were identified for the <sup>25</sup>Mg and <sup>26</sup>Mg minor isotopologs, respectively. The isotopic ratios are compatible with solar values within uncertainties. The derived MgC<sub>2</sub> : MgC<sub>2</sub>H : MgC<sub>4</sub>H : MgC<sub>6</sub>H abundance raios are about 1 : 2 : 22 : 20.\\ |
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| | Contributor(s): H. S. P. Müller; 12, 2022 |
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| Magnesiacyclopropynylidene, MgC<sub>2</sub>, | |