The dissociative recombination of N2(+) (v = 0, 1) as a source of metastable atoms in planetary atmospheres

Details The dissociative recombination of N2(+) (v = 0, 1) as a source of metastable atoms in planetary atmospheres The dissociative recombination of N2(+) (v = 0, 1) as a source of metastable atoms in planetary atmospheres

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985p%26ss...33..263q&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 33, March 1985, p. 263-270.

Physics

Atomic Physics

37

Atmospheric Chemistry, Gas Dissociation, Ion Recombination, Metastable Atoms, Nitrogen Ions, Planetary Atmospheres, Branching (Physics), Elastic Scattering, Mars Atmosphere, Molecular Collisions, Molecular Ions, Quenching (Atomic Physics), Reaction Kinetics

Scientific paper

A study is conducted of the metastable N ion yield in dissociative recombination of N2(+) (v = 0, 1) ions for different experimental conditions. In one experiment, the branching ratio for N(2D) production was directly measured as greater than 1.85. In another experiment at higher electron densities, the influence of superelastic collisions was studied and a steady state analysis of the results obtained yields the quenching rate coefficient k(4) of 2D towards 4S equal to 2.4 x 10 to the -10th cu cm/sec for T(e) of 3900 K. The results are in good agreement with thermospheric models, but imply that N2(+) dissociative recombination is a less important source for N escape of Mars.

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