Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...317..432g&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 317, June 1, 1987, p. 432-441. Research supported by the Smithsonian Instit
Astronomy and Astrophysics
Astrophysics
25
Chemical Evolution, Energy Distribution, Interstellar Chemistry, Molecular Clouds, Oxygen, Shock Wave Interaction, Fine Structure, High Temperature Gases, Internal Energy, Reaction Kinetics
Scientific paper
The effects of nonthermal vibrational, rotational, and fine-structure distributions on the evolution of oxygen-bearing species in shocked interstellar clouds are investigated. Using a one-fluid treatment of the shock structure, we carry out a calculation of the rotational and vibrational populations of molecular hydrogen in the cooling gas. The rates specific to the vibrational, rotational, and fine-structure temperatures of the reactants are explicitly included for the principal oxygen-hydrogen reactions. Shocks of velocity 10 km s-1 propagating in clouds of initial densities 10, 103 , and 105 cm-3 with zero and moderate magnetic field strengths are considered in detail.
Dalgarno Alexander
Graff M. M.
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