N2 spacecraft glows from N(4S) recombination

Details N2 spacecraft glows from N(4S) recombination N2 spacecraft glows from N(4S) recombination

Mar 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991p%26ss...39..469m&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 39, March 1991, p. 469-478. Lockheed Independent Research Funds-supported res

Other

Afterglows, Atomic Recombination, Nitrogen Atoms, Spacecraft Glow, Surface Reactions, Gas Density, Kinetic Energy, Recombination Reactions, Spectral Bands

Scientific paper

The N2 Lyman-Birge-Hopfield band is the only N2 band system which has been identified in spacecraft glow. These bands are thought to arise from the recombination of N(4S) atoms on the spacecraft surface. The absence of band systems such as the IPG normally observed in laboratory afterglows resulting from N(4S) recombination is attributed to the higher N atom kinetic energy in the spacecraft case. A brief review of the processes for the initial population of the radiating states in laboratory afterglows is presented. Extensions of these processes to the N atom energies that occur in spacecraft recombination are employed to suggest the emission of other band systems that may (or may not) be expected.

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