An Isotope-labeling Study of CO2 Formation Pathways in Molecular Clouds: Ultraviolet Photolysis of CO–H2O Ice

With the use of reflection–absorption infrared spectroscopy, we investigated the binary ice of CO and H _2 O at 10 K under ultraviolet irradiation as an analog of the interstellar ice mantle. We employed H _2 ^18 O instead of H _2 ^16 O to distinguish the formation pathways of CO _2 , and prepared m...

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Bibliographic Details

Published in:	The Astrophysical Journal
Main Authors:	Akemi Hirayama, Ichiro Arakawa, Koichiro Yamakawa
Format:	Article
Language:	English
Published:	IOP Publishing 2023-01-01
Subjects:	Molecular clouds Astrochemistry Laboratory astrophysics Interstellar dust Carbon dioxide
Online Access:	https://doi.org/10.3847/1538-4357/acd547