Banded Electron Cyclotron Harmonic Instability — A First Comparison of Theory and Experiment

  • K. Rönnmark
  • H. Borg
  • P. J. Christiansen
  • M. P. Gough
  • D. Jones

Abstract

A study, which is the first of its kind, uses information derived from simultaneously measured wave spectra and particle distributions as the input to a theoretical linear instability model of an electrostatic cyclotron harmonic wave event recorded on GEOS-1. The presence of a hot loss cone component of the particle distribution is established experimentally, and the model accounts reasonably for the observed frequencies and relative strengths of the (n+1/2)f c and upper hybrid emission features.

Keywords

Convection Azimuth Reme 

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References

  1. Ashour-Abdalla, M. and Kennel, C. F.: 1976, in B. M. McCormac (ed.), Magnetospheric Particles and Fields, D. Reidel Publ. Co., Dordrecht, p. 181.Google Scholar
  2. Ashour-Abdalla, M. and Kennel, C. F.: 1978, J. Geophys. Res. 83, 1531.ADSCrossRefGoogle Scholar
  3. Ashour-Abdalla, M., Chanteur, G., and Pellat, R.: 1975, J. Geophys. Res. 80, 2775.ADSCrossRefGoogle Scholar
  4. Brambilla, M.: 1970, Plasma Phys. 12, 903.ADSCrossRefGoogle Scholar
  5. Briggs, R. J.: 1964, Electron-Stream Interactions with Plasmas, MIT Press, Cambridge, Mass.Google Scholar
  6. Borg, H., Holmgren, L. A., Hultqvist, B., Cambou, F., Reme, H., Bahnsen, A., and Kremser, G.: Space Sci. Rev., 22, 511.Google Scholar
  7. Christiansen, P., Gough, P., Martelli, G., Bloch, J. J., Cornilleau, N., Etcheto, J., Gendrin, R., Jones, D., Beghin, C., and Decreau, P.: 1978, Nature 272, 682; and also Space Sci. Rev. 22, 383.ADSCrossRefGoogle Scholar
  8. Dory, R. A., Guest, G. E., and Harris, E. G.: 1965, Phys. Rev. Letters 14, 131.ADSCrossRefGoogle Scholar
  9. Fredericks, R. W.: 1971, J. Geophys, Res. 76, 5344.ADSCrossRefGoogle Scholar
  10. Fredericks, R. W. and Scarf, F. L.: 1973, J. Geophys. Res. 78, 310.ADSCrossRefGoogle Scholar
  11. Hall, L. S., Heckrotte, W., and Kammash, T.: 1965, Phys. Rev. 139A, 1117.MathSciNetADSCrossRefGoogle Scholar
  12. Hubbard, R. F. and Birmingham, T. J.: 1978, J. Geophys. Res., to be published.Google Scholar
  13. Johnson, J. F. E., Sojka, J. J., and Wrenn, G. L.: Space Sci. Rev., 22, 576.Google Scholar
  14. KJones, D. (ed.): Space Sci. Rev. 22, 327.Google Scholar
  15. Karpman, V. I., Alekhin, Ju. K., Borisov, N. D., and Rjabova, N. A.: 1975, Plasma Phys. 17, 361.ADSCrossRefGoogle Scholar
  16. Kennel, C. F., Scarf, F. L., Fredricks, R. W., McGhee, J. H., and Coroniti, F. V.: 1970, J. Geophys. Res. 75, 6136.ADSCrossRefGoogle Scholar
  17. Lyons, R. L.: 1974, J. Geophys. Res. 79, 575.ADSCrossRefGoogle Scholar
  18. Shaw, R. R. and Gurnett, D. A.: 1975, J. Geophys. Res. 80, 4259.ADSCrossRefGoogle Scholar
  19. Sturrock, P. A.: 1958, Phys. Rev. 112, 1488.MathSciNetADSMATHCrossRefGoogle Scholar
  20. Tataronis, J. A. and Crawford, F. W.: 1970a, b, J. Plasma Phys. 4, 231 and 249.ADSCrossRefGoogle Scholar
  21. Young, T. S., Callen, J. D., and McCune, J. E.: 1973, J. Geophys. Res. 78, 1082.ADSCrossRefGoogle Scholar

Copyright information

© D. Reidel Publishing Company, Dordrecht, Holland 1978

Authors and Affiliations

  • K. Rönnmark
    • 1
  • H. Borg
    • 1
  • P. J. Christiansen
    • 2
  • M. P. Gough
    • 2
  • D. Jones
    • 3
  1. 1.Plasma Physics DepartmentUniversity of Umea, and Kiruna Geophysical InstituteSweden
  2. 2.Plasma and Space Physics Group, School of Mathematical & Physical SciencesUniversity of SussexUK
  3. 3.Space Sciences DivisionE.S.A., E.S.T.E.C.NoordwijkHolland

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