An empirical determination of the production efficiency for auroral 6300-A emission by energetic electrons

Statistics – Applications

Scientific paper

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Auroral Spectroscopy, High Energy Electrons, Isis Satellites, Optical Emission Spectroscopy, Energy Bands, Flux (Rate), Regression Analysis, Spectrophotometers, Spectrum Analysis

Scientific paper

Auroral data from the soft particle spectrometer and the red line photometer on board the Isis satellite are presented as a data base for electron energy flux and optical auroral emission and are used to derive production efficiencies for 6300 A emission. Data obtained during a single orbit in which an aurora was observed is corrected by integrating the precipitating flux observed in four energy bands over the loss cone and eliminating the effects of airglow and albedo in the optical emission measurements. A regression analysis of the corrected data from 12 orbits is used to determine 6300 A production coefficients for the 5-60 eV, 60-300 eV, 0.3-1 keV and 1-15 keV electron energy bands. Production coefficients are shown to be in good agreement with theoretical calculations and rocket measurements in conjugate photoelectrons, and applications of the method to other data sets are discussed.

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