Is the dissociative recombination of H3(+) really slow. A new spectroscopic measurement of the rate constant

Journal Article · Wed Jun 01 00:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/185190· OSTI ID:6833144

Amano, T

The dissociative rate constant for H3(+) occupies a key role in model calculations of the interstellar chemical evolution. The decay of an infrared absorption signal of H3(+) was measured as a function of time, and the decay curve was analyzed and found to fit very well to the form expected for a recombination decay. The signal decay is attributed to the dissociative recombination with electrons, and the rate constant was determined to be (1./8 + or - 0.2) x 10 to the -7th cu cm/s, which disagrees with the recent value obtained with the flowing afterglow/Langmuir probe technique. 22 references.

• Research Organization: National Research Council of Canada, Herzberg Institute of Astrophysics, Ottawa
• OSTI ID: 6833144
• Journal Information: Astrophys. J.; (United States), Vol. 329
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
HYDROGEN IONS
COSMOCHEMISTRY
INTERSTELLAR SPACE
CHEMICAL COMPOSITION
CATIONS
DISSOCIATION
ELECTROSTATIC PROBES
INFRARED SPECTRA
MATHEMATICAL MODELS
MOLECULAR IONS
REACTION KINETICS
CHARGED PARTICLES
CHEMISTRY
IONS
KINETICS
PROBES
SPACE
SPECTRA
640105* - Astrophysics & Cosmology- Galaxies