Transverse Auroral Ion Energization Observed on De-1 With Simultaneous Plasma Wave and Ion Composition Measurements
- Tom Chang,
- M. K. Hudson,
- J. R. Jasperse,
- R. G. Johnson,
- P. M. Kintner and
- M. Schulz
Published Online: 21 MAR 2013
Copyright 1986 by the American Geophysical Union.
Ion Acceleration in the Magnetosphere and Ionosphere
How to Cite
Peterson, W. K., Shelley, E. G., Boardsen, S. A. and Gurnett, D. A. (1986) Transverse Auroral Ion Energization Observed on De-1 With Simultaneous Plasma Wave and Ion Composition Measurements, in Ion Acceleration in the Magnetosphere and Ionosphere (eds T. Chang, M. K. Hudson, J. R. Jasperse, R. G. Johnson, P. M. Kintner and M. Schulz), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM038p0043
- Published Online: 21 MAR 2013
- Published Print: 1 JAN 1986
Print ISBN: 9780875900636
Online ISBN: 9781118664216
- Ion flow dynamics—Congresses;
- Space plasmas—Congresses
The abundance of oxygen ions observed flowing into the magnetosphere cannot be explained by a single-step, parallel acceleration mechanism. Some transverse energization of ionospheric ions is required and has been observed from ionospheric altitudes to the plasma lobes in the earth's magnetotail. Progress in understanding the nature of the various transverse energization mechanisms has been slow because of the relative lack of examples with sufficiently resolved (in time, energy, and frequency) particle and wave data.
Starting in early 1984. the Dynamics Explorer-1 satellite systematically acquired a coordinated set of high time resolution plasma and plasma wave observations from the earth's auroral zone. We have selected several intervals from the 0 to 10 kHz wideband data from the Dynamics Explorer-1 satellite with intense low frequency emissions and evidence of harmonic structure and have examined in detail the high resolution ion data obtained simultaneously. In this report we present detailed data from events in the cusp and evening auroral zone and comment briefly on how these data can be used to more fully understand auroral acceleration processes.