The detection of butadiynyl (C4H) in absorption against Cassiopeia A

Details The detection of butadiynyl (C4H) in absorption against Cassiopeia A The detection of butadiynyl (C4H) in absorption against Cassiopeia A

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...273l..35b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 273, Oct. 1, 1983, p. L35-L39.

Astronomy and Astrophysics

Astrophysics

23

Abundance, Cassiopeia A, Hydrocarbons, Interstellar Extinction, Molecular Clouds, Orion Nebula, Free Radicals, Gas Density, Molecular Absorption, Molecular Spectra

Scientific paper

Observations of the N = 1<-0 transition of the butadiynyl radical, C4H, in absorption against Cas A are reported. The inferred column density of C4H is 1012 - 1013 cm-2 in the Orion arm, and this is high enough to be of potential significance for the carriers of the diffuse interstellar bands.

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