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Glycolaldehyde formation via the dimerization of the formyl radical

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posted on 2023-06-08, 16:40 authored by Paul M Woods, Ben Slater, Zamaan Raza, Serena Viti, Wendy BrownWendy Brown, Daren J Burke
Glycolaldehyde, the simplest monosaccharide sugar, has recently been detected in low- and high-mass star-forming cores. Following our previous investigation into glycolaldehyde formation, we now consider a further mechanism for the formation of glycolaldehyde that involves the dimerization of the formyl radical, HCO. Quantum mechanical investigation of the HCO dimerization process upon an ice surface is predicted to be barrierless and therefore fast. In an astrophysical context, we show that this mechanism can be very efficient in star-forming cores. It is limited by the availability of the formyl radical, but models suggest that only very small amounts of CO are required to be converted to HCO to meet the observational constraints.

History

Publication status

  • Published

File Version

  • Published version

Journal

The Astrophysical Journal

ISSN

0004-637X

Publisher

AAS

Issue

2

Volume

777

Page range

90

Department affiliated with

  • Chemistry Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2014-02-04

First Open Access (FOA) Date

2014-02-04

First Compliant Deposit (FCD) Date

2014-02-04

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