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The interstellar chemistry of H2C3O isomers

Authors: Loison, Jean-Christophe,; Agúndez, Marcelino,; Marcelino, Núria,; Wakelam, Valentine; Hickson, Kevin M.,; Cernicharo, José,; Gerin, Maryvonne,; +2 Authors

The interstellar chemistry of H2C3O isomers

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.

19 pages, 4 Figures, 4 Tables

Countries
France, Spain
Keywords

[SDU.ASTR.CO] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], 500, FOS: Physical sciences, 540, ISM: clouds, Astrophysics - Astrophysics of Galaxies, ISM: molecules, ISM: clouds - ISM: molecules, Astrophysics of Galaxies (astro-ph.GA), clouds [ISM], molecules [ISM]

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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OpenAIRE UsageCountsViews provided by UsageCounts
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74
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