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| molecules:ism:c7n [2023/02/20 14:06] – mueller | molecules:ism:c7n [2023/02/20 14:14] (current) – mueller |
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| **[[https://doi.org/10.1051/0004-6361/202245816|Discovery of the C<sub>7</sub>N<sup>−</sup> Anion in TMC-1 and IRC +10216]]**\\ | **[[https://doi.org/10.1051/0004-6361/202245816|Discovery of the C<sub>7</sub>N<sup>−</sup> Anion in TMC-1 and IRC +10216]]**\\ |
| //Astron. Astrophys.// **670**, (2023), Art. No. L19.\\ | //Astron. Astrophys.// **670**, (2023), Art. No. L19.\\ |
| Six transitions with 26 ≤ //J"// ≤ 31 and 17 transitions with 26 ≤ //J"// ≤ 42 were detected toward the dark cloud TMC-1 and the C-rich late-type star CW Leonis, respectively, in the course of two molecular line surveys. | Six transitions with 26 ≤ //J"// ≤ 31 and 17 transitions with 26 ≤ //J"// ≤ 42 were detected toward the dark cloud TMC-1 and the C-rich late-type star CW Leonis, respectively, in the course of two molecular line surveys. The identification relies on quantum-chemical observations as no laboraotory data exist to date, as in the case of C<sub>5</sub>N<sup>−</sup>. The rotational temperature //T//<sub>rot</sub> was fit as 6.0 ± 0.5 K in TMC-1 and as 26.6 ± 1.8 K toward CW Leonis; both values are similar to those of C<sub>5</sub>N<sup>−</sup>. The C<sub>5</sub>N<sup>−</sup> to C<sub>7</sub>N<sup>−</sup> in TMC-1 is ~5, toward CW Leonis ~2.4.\\ |
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| | Contributor(s): H. S. P. Müller; 02, 2023 |
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