Advertisement

Evidence for Beam-Stimulated Precipitation of High Energy Electrons

  • E. Bering
  • J. Benbrook
  • J. Roeder
  • W. Sheldon
Part of the NATO Advanced Study Institutes Series book series (NSSB, volume 79)

Abstract

The interaction of artificial and natural electron beams with the ionosphere and magnetosphere has been observed to give rise to a rich variety of phenomena. Most of the work on this topic has concentrated on the interaction of a beam with the ambient thermal plasma, on plasma wave generation near a beam source, etc. Relatively little attention has been paid to the effects of a beam on the distant magnetosphere, and on high energy particles. This paper will discuss two observations in which an electron beam apparently stimulated the precipitation of high energy electrons from the deep magnetosphere. These observations were made by the UH Group in conjunction with two active magnetospheric experiments, the first Araks experiment on January 26, 1975 (Roeder et al., 1980 (paper 1)) and the Trigger experiment on February 11, 1977. (Bering, et al., 1980 (paper 2)). In both cases, the data were obtained from rocket-boosted, parachute-borne X ray bremsstrahlung detectors which were initially deployed of an altitude of 80 km near the foot of the flux tubes affected by each experiment.

Keywords

High Energy Electron Pulse Height Analyzer Epoch Analysis Whistler Mode Superpose Epoch Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bering, E.A., Benbrook, J.R., Stansbery, E.G., Sheldon, W.R., and Roeder, J.L., 1980, The results from the X ray bremsstrahlung experiment of Project Trigger, J. Geophys. Res., 85: 5079.ADSCrossRefGoogle Scholar
  2. Cambou, F., Doukoukine, V.S., Lavergnat, J., Pellat, R., Reme, H., Saint-Marc, A., Sagdeev, R.Z., and Zhulin, I.A., 1980, General description of the Araks experiments, Ann. Geophys., 36: 271.Google Scholar
  3. Holmgren, G., Bostrom, R., Kelley, M.C., Kintner, P.M., Lundin, R., Fahleson, U.V., Bering, E.A., and Sheldon, W.R., 1980, Trigger, an active release experiment that stimulated auroral particle precipitation and wave emissions, J. Geophys. Res., 85: 5043.ADSCrossRefGoogle Scholar
  4. Lundin, R., and Holmgren, G., 1980, Rocket observations of stimulated electron acceleration associated with the Trigger experiment, J. Geophys. Res., 85: 5061.ADSCrossRefGoogle Scholar
  5. Roeder, J.L., Sheldon, W.R., Benbrook, J.R., Bering, E.A., and Leverenz, H., 1980, X ray measurements during the Araks experiments, Ann. Geophys., 36: 401.Google Scholar
  6. Seltzer, S.M., Berger, M.S., and Rosenberg, T.J., 1973, Auroral bremsstrahlung at balloon altitudes, Spec. Publ. 3081, Nat. Aeronaut, and Space Admin., Washington, D.C.Google Scholar

Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • E. Bering
    • 1
  • J. Benbrook
    • 1
  • J. Roeder
    • 1
  • W. Sheldon
    • 1
  1. 1.Physics DepartmentUniversity of HoustonHoustonUSA

Personalised recommendations