Abstract

To supplement a rocket investigation of the auroral green line, data from some auroral pulsations have been analyzed by direct integration of the time-dependent continuity equations for each of the sources now thought to contribute. It is shown that indirect processes are not incompatible with studies of auroral pulsations, and that a non-negligible contribution to the green-line intensity comes from dissociative recombination. Calculations using the theoretical O( 1 S) lifetime show that the remaining green line must come from a direct or very fast process; however, if the O( 1 S) lifetime can be reduced, significant portions of the green line can come from the transfer of energy from N 2( A 3Σ u +) to atomic oxygen.

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