A new interstellar polyatomic molecule: detection of propynal in the cold cloud TMC-1 |
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| Authors: | Irvine W M Brown R D Cragg D M Friberg P Godfrey P D Kaifu N Matthews H E Ohishi M Suzuki H Takeo H |
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| Institution: | Five College Radio Astronomy Observatory, University of Massachusetts, USA. |
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| Abstract: | We report the detection of the acetylene derivative propynal (HC triple bond CCHO) in the cold cloud TMC-1, with an abundance that is very close to that for the related species tricarbon monoxide (C3O). Propadienone, an isomer of propynal with the formula H2C=C=C=O, was not detected and is hence less abundant than either C3O or HC2CHO. |
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