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CrossRef Open Access 2020 84 sitasi

Discovery of HC<sub>4</sub>NC in TMC-1: A study of the isomers of HC<sub>3</sub>N, HC<sub>5</sub>N, and HC<sub>7</sub>N

J. Cernicharo N. Marcelino M. Agúndez C. Bermúdez C. Cabezas +2 lainnya
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Abstrak

We present a study of the isocyano isomers of the cyanopolyynes HC3N, HC5N, and HC7N in TMC-1 and IRC+10216 carried out with the Yebes 40m radio telescope. This study has enabled us to report the detection, for the first time in space, of HCCCCNC in TMC-1 and to give upper limits for HC6NC in the same source. In addition, the deuterated isotopologues of HCCNC and HNCCC were detected, along with all 13C substitutions of HCCNC, also for the first time in space. The abundance ratios of HC3N and HC5N, with their isomers, are very different in TMC-1 and IRC+10216, namely, N(HC5N)/N(HC4NC) is ∼300 and ≥2100, respectively. We discuss the chemistry of the metastable isomers of cyanopolyynes in terms of the most likely formation pathways and by comparing observational abundance ratios between different sources.

Penulis (7)

J

J. Cernicharo

N

N. Marcelino

M

M. Agúndez

C

C. Bermúdez

C

C. Cabezas

B

B. Tercero

J

J. R. Pardo

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APA MLA BibTeX
Cernicharo, J., Marcelino, N., Agúndez, M., Bermúdez, C., Cabezas, C., Tercero, B. et al. (2020). Discovery of HC<sub>4</sub>NC in TMC-1: A study of the isomers of HC<sub>3</sub>N, HC<sub>5</sub>N, and HC<sub>7</sub>N. https://doi.org/10.1051/0004-6361/202039274

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Informasi Jurnal
Tahun Terbit
2020
Bahasa
en
Total Sitasi
84×
Sumber Database
CrossRef
DOI
10.1051/0004-6361/202039274
Akses
Open Access ✓