Plasma preconditioning and the role of elevated vibrational temperature in production of excited N2 vibrational distributions

Details Plasma preconditioning and the role of elevated vibrational temperature in production of excited N2 vibrational distributions Plasma preconditioning and the role of elevated vibrational temperature in production of excited N2 vibrational distributions

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.7711m&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 95, June 1, 1990, p. 7711-7724. Research supported by USAF.

Physics

Atomic Physics

13

Molecular Excitation, Nitrogen, Preconditioning, Space Plasmas, Vibrational Spectra, Airglow, Electric Discharges, Ground State, Pulse Repetition Rate, Quenching (Atomic Physics)

Scientific paper

The excitation and decay processes in molecualr nitrogen in pulsed electric discharges under conditions relevant to those of aurora were investigated using a laboratory setup and the experimental conditions described by Morrill (1986) and Morrill et al. (1988). It was found that there are progressive changes in the condition of the gaseous medium, which occur during the time interval between pulses. Evidence is presented showing that most of the phenomena being demonstrated in the laboratory are also occurring to varying extents in auroras. The results obtained with this laboratory model indictate that currently accepted N2(B) quenching coefficients are not adequate to explain observations made during the afterglow following the discharge.

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