SIMBAD references

2019ApJ...883..129E - Astrophys. J., 883, 129-129 (2019/October-1)

Interstellar glycolaldehyde, methyl formate, and acetic acid. I. A bimodal abundance pattern in star-forming regions.

EL-ABD S.J., BROGAN C.L., HUNTER T.R., WILLIS E.R., GARROD R.T. and McGUIRE B.A.

Abstract (from CDS):

The relative column densities of the structural isomers methyl formate, glycolaldehyde, and acetic acid are derived for a dozen positions toward the massive star-forming regions MM1 and MM2 in the NGC 6334I complex, which are separated by ∼4000 au. Relative column densities of these molecules are also gathered from the literature for 13 other star-forming regions. In this combined data set, a clear bimodal distribution is observed in the relative column densities of glycolaldehyde and methyl formate. No such distribution is evident with acetic acid. The two trends are comprised of star-forming regions with a variety of masses, suggesting that there must be some other common parameter that is heavily impacting the formation of glycolaldehyde. This is indicative of some demonstrable differentiation in these cores; studying the abundances of these isomers may provide a clue as to the integral chemical processes ongoing in a variety of protostellar environments.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrochemistry - ISM: molecules

Status in Simbad:  waiting for electronic table

Simbad objects: 16

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2020.01.18-09:29:06

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