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Reactions between neutral species at low temperatures: Laboratory results and astrophysical modelling

Published online by Cambridge University Press:  25 May 2016

Ian W.M. Smith
Ian W.M. Smith*
Affiliation:
School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK

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Over the past few years, rate coefficients (k) have been measured for neutral-neutral reactions at low (down to 80 K) and ultra-low (down to 13 K) temperatures (T). The experimental methods and the results which have been obtained are reviewed. A surprisingly large number of reactions become faster at lower temperatures and have rate coefficients close to the collisional value below ca. 50 K. The factors which influence the form of k(T) are briefly discussed and proposals are made as to how rate coefficients might be estimated for use in astrochemical models.

Type
Basic Molecular Processes
Information
Symposium - International Astronomical Union , Volume 178: Molecules in Astrophysics: Probes and Processes , 1997 , pp. 253 - 270
Copyright
Copyright © Kluwer 1997 

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