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| molecules:ism:sic [2019/02/25 22:38] – external edit 127.0.0.1 | molecules:ism:sic [2019/10/18 12:49] (current) – mueller |
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| SiC has been detected thus far only in the circumstellar envelope of CW Leo, also known as IRC +10216. 3, 3, and 1 components were detected for the //J"// = 1, 3, and 5 transitions near 80, 160, and 240 GHz covering all fine structure components by\\ | SiC has been detected thus far only in the circumstellar envelope of CW Leo, also known as IRC +10216. 3, 3, and 1 components were detected for the //J"// = 1, 3, and 5 transitions near 80, 160, and 240 GHz covering all fine structure components by\\ |
| J. Cernicharo, C. A. Gottlieb, M. Guélin, P. Thaddeus, and J. M. Vrtílek,\\ | J. Cernicharo, C. A. Gottlieb, M. Guélin, P. Thaddeus, and J. M. Vrtílek,\\ |
| **[[http://cdsads.u-strasbg.fr/abs/1989ApJ...341L..25C|Astonomical and Laboratory Detection of the SiC Radical]]**\\ | **[[https://ui.adsabs.harvard.edu/abs/1989ApJ...341L..25C|Astonomical and Laboratory Detection of the SiC Radical]]**\\ |
| //Astrophys. J.// **341**, L25–L28 (1989).\\ | //Astrophys. J.// **341**, L25–L28 (1989).\\ |
| The molecule occurs further away from the star than SiS or SiC<sub>2</sub> as judged by the line shape. The excitation is probably far from LTE as the transitions within each fine structure component indicate a rotational temperature of around 13 K. In contrast, the relative intensities of the fine structure transitions suggest a temperature closer to 90 K. | The molecule occurs further away from the star than SiS or SiC<sub>2</sub> as judged by the line shape. The excitation is probably far from LTE as the transitions within each fine structure component indicate a rotational temperature of around 13 K. In contrast, the relative intensities of the fine structure transitions suggest a temperature closer to 90 K. |