Interaction of H+ and O+ Beams: Observations at 2 and 3 RE

  1. Tom Chang,
  2. M. K. Hudson,
  3. J. R. Jasperse,
  4. R. G. Johnson,
  5. P. M. Kintner and
  6. M. Schulz
  1. R. L. Kaufmann and
  2. G. R. Ludlow

Published Online: 21 MAR 2013

DOI: 10.1029/GM038p0092

Ion Acceleration in the Magnetosphere and Ionosphere

Ion Acceleration in the Magnetosphere and Ionosphere

How to Cite

Kaufmann, R. L. and Ludlow, G. R. (1986) Interaction of H+ and O+ Beams: Observations at 2 and 3 RE , 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/GM038p0092

Author Information

  1. Department of Physics, University of New Hampshire, Durham, NH 03824

Publication History

  1. Published Online: 21 MAR 2013
  2. Published Print: 1 JAN 1986

ISBN Information

Print ISBN: 9780875900636

Online ISBN: 9781118664216

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Keywords:

  • Magnetosphere—Congresses;
  • Ionosphere—Congresses;
  • Ion flow dynamics—Congresses;
  • Space plasmas—Congresses

Summary

Since H+ and O+ upgoing auroral ion seams frequently are accelerated to comparable energies, the H beam streaming velocity is several times higher than the O+ beam velocity. Both S3-3 and DE-1 data show effects of the interaction between these two beams. Each species is heated, and there is a net transfer of energy from H+ to O+ so that an extended O+ high energy tail is formed. Linear stability analysis, using the measured ion distribution functions, identified two plasma waves which can be driven by the beams. It is suggested that this mechanism could transfer energy from a lighter to a heavier species in a number of space plasmas.