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Publication | Closed Access

Detection of HNCCC in TMC-1

DOI

86

Citations

0

References

1992

Year

Kentarou Kawaguchi, Shuro Takano, Masatoshi Ohishi, Shin-Ichi Ishikawa, Keisuke Miyazawa, Norio Kaifu, Koichi Yamashita, Satoshi Yamamoto, Shuji Saito, Yasuhiro Ohshima,
The Astrophysical Journal

Abstract

The study identifies the HNCCC molecule, an isomer of cyanoacetylene HCCCN, in TMC-1 through observations with the Nobeyama 45-m telescope, considering the observed spectral pattern and results of ab initio calculations and laboratory microwave spectroscopy. The column density of HNCCC in TMC-1 is determined to be 3.8(0.6) x 10 exp 11/ sq cm, which is 160-450 times smaller than that of HCCCN.