Substorm Injection Boundaries

  • Carl E. McIlwain
Part of the Astrophysics and Space Science Library book series (ASSL, volume 44)


An improved magnetospheric electric field model is used to compute the initial locations of particles injected by several substorms. Trajectories are traced from the time of their encounter with the ATS-5 satellite backwards to the onset time given by ground-based magnetometers. A spiral shaped inner boundary of injection is found which is quite similar to that found by a statistical analysis. This injection boundary is shown to move in an energy dependent fashion which can explain the soft energy spectra observed at the inner edge of the electrons plasma sheet.


Plasma Sheet Magnetic Field Model Synchronous Orbit Auroral Breakup Electric Field Model 
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  1. Carpenter, D. L.: 1967, J. Geophys. Res. 72, 2969.CrossRefGoogle Scholar
  2. DeForest, S. E.: 1972, J. Geophys. Res. 77, 651.ADSCrossRefGoogle Scholar
  3. DeForest, S. E. and Mcllwain, C. E.: 1971, J. Geophys. Res. 76, 3587.ADSCrossRefGoogle Scholar
  4. Frank, L. A.: 1968, in R. L. Carovillano, J. F. McClay, and H. R. Radoski, (eds.), Physics of the Magnetosphere, D. Reidel Publishing Company, Dordrecht-Holland, p. 271.Google Scholar
  5. Frank, L. A.: 1971, J. Geophys. Res. 76, 2265.ADSCrossRefGoogle Scholar
  6. Kavanagh, L. D., Jr., Freeman, J. W., Jr., and Chen, A. J.: 1968, J. Geophys. Res. 73, 5511.ADSCrossRefGoogle Scholar
  7. Kennel, C. F.: 1969, Rev. Geophys. 7, 379.ADSCrossRefGoogle Scholar
  8. Mauk, B. and McIlwain, C. E.: 1973, J. Geophys. Res., submitted.Google Scholar
  9. Mcllwain, C. E.: 1972, in B. M. McCormac (ed.), Earth’s Magnetospheric Processes, D. Reidel Publishing Company, Dordrecht-Holland, p. 268.Google Scholar
  10. Mende, S. B., Sharp, R. D., Shelley, E. G., Haerendel, G., and Hones, E. W.: 1972, J. Geophys. Res. 77, 4682.ADSCrossRefGoogle Scholar
  11. Schield, M. A. and Frank, L. A.: 1970, J. Geophys. Res. 75, 5401.ADSCrossRefGoogle Scholar
  12. Suigura, M., Ledley, B. G., Skillman, T. L., and Heppner, J. P.: 1971, J. Geophys. Res. 76, 7552.ADSCrossRefGoogle Scholar
  13. Vasyliunas, V. M.: 1968, J. Geophys. Res. 73, 2839.ADSCrossRefGoogle Scholar

Copyright information

© D. Reidel Publishing Company, Dordrecht-Holland 1974

Authors and Affiliations

  • Carl E. McIlwain
    • 1
  1. 1.Physics DepartmentUniversity of California, San DiegoLa JollaUSA

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