Gas-phase Ortho-to-para Ratio of Formaldehyde Formed at Low Temperatures in Laboratory Ices

Gas-phase Ortho-to-para Ratio of Formaldehyde Formed at Low Temperatures in Laboratory Ices

The ortho-to-para ratio (OPR) of formaldehyde (H _2 CO) has been used as a probe to estimate the formation temperature of molecules in interstellar, circumstellar, and cometary environments, relying on the assumption that nuclear spin conversion is extremely slow, preserving the OPR from molecular f...

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Bibliographic Details
Main Authors: K. M. Yocum, O. H. Wilkins, J. C. Bardwell, S. N. Milam, P. A. Gerakines
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal Letters
Subjects:
Laboratory astrophysics
Astrochemistry
Molecular spectroscopy
Molecular physics
Online Access:https://doi.org/10.3847/2041-8213/ad0bee

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