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Oxford University Press (OUP), Monthly Notices of the Royal Astronomical Society, 4(456), p. 4101-4110

DOI: 10.1093/mnras/stv2866

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The interstellar chemistry of H2C3O isomers

Journal article published in 2015 by Jean-Christophe Loison, Marcelino Agúndez, Núria Marcelino, Valentine Wakelam ORCID, Kevin M. Hickson ORCID, José Cernicharo, Maryvonne Gerin, Evelyne Roueff, Michel Guélin
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We present the detection of two H2C3O isomers, propynal and cyclopropenone, toward various starless cores and molecular clouds, together with upper limits for the third isomer propadienone. We review the processes controlling the abundances of H2C3O isomers in interstellar media showing that the reactions involved are gas-phase ones. We show that the abundances of these species are controlled by kinetic rather than thermodynamic effects.