Detection of HNCCC in TMC-1

Details Detection of HNCCC in TMC-1 Detection of HNCCC in TMC-1

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...396l..49k&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 396, no. 1, Sept. 1, 1992, p. L49-L51. Research supported by MOES

Astronomy and Astrophysics

Astrophysics

27

Cyanoacetylene, Interstellar Matter, Isomers, Microwave Spectra, Dipole Moments, Fourier Transformation, Line Spectra, Rotational Spectra, Telescopes

Scientific paper

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.

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