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Formation of the methyl cation by photochemistry in a protoplanetary disk

Authors: Berné, Olivier; Martin-Drumel, Marie-Aline; Schroetter, Ilane; Goicoechea, Javier; Jacovella, Ugo; Gans, Bérenger; Dartois, Emmanuel; +49 Authors

Formation of the methyl cation by photochemistry in a protoplanetary disk

Abstract

Forty years ago it was proposed that gas phase organic chemistry in the interstellar medium was initiated by the methyl cation CH3+, but hitherto it has not been observed outside the Solar System. Alternative routes involving processes on grain surfaces have been invoked. Here we report JWST observations of CH3+ in a protoplanetary disk in the Orion star forming region. We find that gas-phase organic chemistry is activated by UV irradiation.

Published in Nature

Countries
Spain, Netherlands, France
Keywords

[PHYS]Physics [physics], [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, Chemical Physics (physics.chem-ph), [CHIM.THEO] Chemical Sciences/Theoretical and/or physical chemistry, Physics - Chemical Physics, Astrophysics of Galaxies (astro-ph.GA), [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], [SDU.ASTR.EP] Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], FOS: Physical sciences, 540, Astrophysics - Astrophysics of Galaxies, 520

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selected citations
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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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