molecules:ism:cncn

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molecules:ism:cncn [2019/07/03 11:11] – corrected doi muellermolecules:ism:cncn [2019/10/22 17:11] (current) – mueller
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 M. Agúndez, N. Marcelino, and J. Cernicharo,\\ M. Agúndez, N. Marcelino, and J. Cernicharo,\\
 reported on the\\ reported on the\\
-**[[http://dx.doi.org/10.3847/2041-8213/aad089|Discovery of Interstellar Isocyanogen (CNCN): Further Evidence that Dicyanopolyynes Are Abundant in Space]]**\\+**[[https://doi.org/10.3847/2041-8213/aad089|Discovery of Interstellar Isocyanogen (CNCN): Further Evidence that Dicyanopolyynes Are Abundant in Space]]**\\
 //Astrophys. J.// **861**, Art. No. L22 (2018).\\ //Astrophys. J.// **861**, Art. No. L22 (2018).\\
 The IRAM 30 m telescope was used to detect three transitions out of four transitions with //J// = 8 – 7 near 82.8 GHz to //J// = 11 – 10 near 113.8 GHz toward the the young stellar object IRAS 18148–0440 in the L483 dense core. The signal-to-noise (S/N) ratios were reasonable to good for the first three transitions, not sufficient for the last. All four transitions were also seen with modest S/N toward the cyanopolyyne peak of TMC-1; stacking of all four transitions yielded a reasonable signal. Hence, the detection was viewed as secure toward L483 and as tentative toward TMC-1. CNCN is more abundant than HNCCN<sup>+</sup> by factors of about 40 and 10 in L483 and TMC-1, respectively. The IRAM 30 m telescope was used to detect three transitions out of four transitions with //J// = 8 – 7 near 82.8 GHz to //J// = 11 – 10 near 113.8 GHz toward the the young stellar object IRAS 18148–0440 in the L483 dense core. The signal-to-noise (S/N) ratios were reasonable to good for the first three transitions, not sufficient for the last. All four transitions were also seen with modest S/N toward the cyanopolyyne peak of TMC-1; stacking of all four transitions yielded a reasonable signal. Hence, the detection was viewed as secure toward L483 and as tentative toward TMC-1. CNCN is more abundant than HNCCN<sup>+</sup> by factors of about 40 and 10 in L483 and TMC-1, respectively.
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 Contributor(s): H. S. P. Müller; 07, 2018 Contributor(s): H. S. P. Müller; 07, 2018
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