A satellite investigation of energy flux and inferred potential drop in auroral electron energy spectra

Details A satellite investigation of energy flux and inferred potential drop in auroral electron energy spectra A satellite investigation of energy flux and inferred potential drop in auroral electron energy spectra

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981stin...8125997m&link_type=abstract

In Texas Univ. at San Antonio Res. on Solar-Wind Magnetospheric Elec. Fields and Plasmas 16 p (SEE N81-25996 16-92)

Computer Science

Sound

Auroras, Electron Precipitation, Electrostatics, Energy Spectra, Explorer 54 Satellite, Electric Potential, Mathematical Models, Maxwell-Boltzmann Density Function

Scientific paper

Because predicted relationship (epsilon directly varies with V squared) between auroral electron energy flux (epsilon) and the inferred acceleration potential drop (V) for accelerated Maxwellian distributions was favorably tested by other using sounding rocket data for the limiting case of eVE 1 (where Ec is the characteristic energy of the accelerated Maxwellian distribution) and for a single inverted-V observed by the Injun 5 satellite, data from Atmosphere D were used to extend these studies over the range .2 eV/Ec 5 and for a wide range of latitudes and local times on both the nightside and the dayside. Results show good agreement with the full accelerated Maxwellian model. An analytical approximation to the electron energy flux was derived which better describes the data over the range .2 eV/Ec approximated 3. Analyses of individual energy spectra at small and large pitch angles through well-defined inverted-V structures suggest that the altitude of the inferred potential drop maximizes near the center of the inverted-V's.

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