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Title:
An update of and suggested increase in calculated radiative association rate coefficients
Authors:
Herbst, E.
Affiliation:
AA(Duke University, Durham, NC)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 291, April 1, 1985, p. 226-229. (ApJ Homepage)
Publication Date:
04/1985
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Association Reactions, Computational Astrophysics, Interstellar Chemistry, Molecular Clouds, Reaction Kinetics, Methyl Alcohol, Molecular Ions, Spontaneous Emission, Temperature Dependence
DOI:
10.1086/163060
Bibliographic Code:
1985ApJ...291..226H

Abstract

The theoretical evidence that recently calculated radiative association reaction rate coefficients involving polyatomic molecular ions may be an order of magnitude too low in many cases is explained and developed. A faster radiative stabilization rate is utilized to lessen the discrepancy between theory and experiment on the important interstellar association between CH3(+) and H2. Proposed update rate coefficients for a variety of radiative association processes in the 10-50 K temperature range are given for inclusion in future models of dense interstellar clouds.

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