Thomas P. Armstrong - Refereed Publications

More Armstrong Refereed Publications:
1965-1980 (below)
1981-1989
1990-1999
2000-Present

Publications - 1965-1980

  1. Armstrong, T. P., The Morphology of the Outer Zone Electron Distribution from January through July and September, 1963, from Injun 3, J. Geophys. Res., 70, 2077-2110, 1965.
  2. Krimigis, S. M., and T. P. Armstrong, Observations of Protons in the Magnetosphere with Mariner IV, J. Geophys. Res., 71, 4641-4650, 1966.
  3. Krimigis, S. M., J. A. Van Allen, and T. P. Armstrong, Simultaneous Observations of Solar Protons Inside and Outside the Magnetosphere, Phys. Rev. Letters, 18, 1204-1207, 1967.
  4. Armstrong, T. P., and D. Montgomery, Asymptotic State of the Two Stream Instability, J. Plasma Phys., 1, 425-433, 1967.
  5. Armstrong, T. P., Numerical Studies of the Nonlinear Vlasov Equation, Physics of Fluids, 10, 1269-1280, 1967.
  6. Van Allen, J. A., S. M. Krimigis, L. A. Frank, and T. P. Armstrong, Venus: An Upper Limit in Intrinsic Magnetic Dipole Moment Based on Absence of a Radiation Belt, Science, 158, 1673-1675, 1967.
  7. Armstrong, T. P., and S. M. Krimigis, Observations of Protons in the Magnetosphere and Magnetotail with Explorer 33, J. Geophys. Res., 73, 143-152, 1968.
  8. Freidberg, J. P., and T. P. Armstrong, Nonlinear Development of the Two-stream Instability, Physics of Fluids, 11, 2669-2679, 1968.
  9. Van Allen, J. A., S. M. Krimigis, L. A. Frank, and T. P. Armstrong, Observed Absence of Energetic Electrons and Protons near Venus, J. Geophys. Res., 73, 421-425, 1968.
  10. Armstrong, T. P., S. M. Krimigis, and J. A. Van Allen, Observations of the Solar Particle Event of 7 July 1966, with University of Iowa Detectors, Annals of the I.Q.S.Y., 3, 313-328, 1969.
  11. Krimigis, S. M., J. A. Van Allen, and T. P. Armstrong, Solar Particle Observations Inside the Magnetosphere During the 7 July 1966 Proton Flare Event, Annals of the I.Q.S.Y, 3, 395-407, 1969.
  12. Armstrong, T. P., and D. C. Montgomery, Numerical Study of Weakly Unstable Plasma Oscillations, Physics of Fluids, 12, 2094-2098, 1969.
  13. Armstrong, T. P., R. C. Harding, G. Knorr, and D. Montgomery, Solution of Vlasov's Equation by Transform Methods, Methods of Computational Physics, 9, Academic Press, New York, 30-87, 1970.
  14. Armstrong, T. P., and C. W. Neilson, Initial Comparison of Transform and Particle-in-cell Methods of Collisionless Plasma Simulation, Physics of Fluids, 13, 1880-1881, 1970.
  15. Armstrong, T. P., S. M. Krimigis, and K. W. Behannon, Proton Fluxes at 300 keV Associated with Propagating Interplanetary Shock Waves, J. Geophys. Res., 75, 5980-5988, 1970.
  16. Krimigis, S. M., P. Verzariu, J. A. Van Allen, T. P. Armstrong, T. A. Fritz, and B. A. Randall, Trapped Energetic Nuclei z>3 in the Earth's Outer Radiation Zone, J. Geophys. Res., 75, 4210-4215, 1970.
  17. Armstrong, T. P., and S. M. Krimigis, A Statistical Study of Solar Protons, Alphas, and z>3 Nuclei in 1967-68, J. Geophys. Res., 76, 4230-4244, 1971.
  18. Krimigis, S. M., E. C. Roelof, T. P. Armstrong, and J. A. Van Allen, Low Energy (>.3 MeV) Solar Particle Observations at Widely Separated Points (>0.1 a.u.) During 1967, J. Geophys. Res., 76, 5921-5946, 1971.
  19. Armstrong, T. P., S. M. Krimigis, D. V. Reames, and C. E. Fichtel, A Comparison of Measurements of the Charge Spectrum of Solar Cosmic Rays from Nuclear Emulsions and the Explorer 35 Solid State Detector, J. Geophys. Res., 77, 3607-3612, 1972.
  20. Hewett, D. W., and T. P. Armstrong, Nonlinear Landau Damping in a Radially Inhomogeneous Cylindrical Plasma, Physics of Fluids, 17, 595-599, 1974.
  21. Armstrong, T. P., S. M. Krimigis, and L. J. Lanzerotti, A Reinterpretation of the Reported Presence of Energetic Proton Fluxes in the Vicinity of Mercury, J. Geophys. Res., 80, 4015-4017, 1975.
  22. Krimigis, S. M., E. T. Sarris, and T. P. Armstrong, Observation of Jovian Electron Events in the Vicinity of Earth, Geophys. Res. Lett., 2, 561, 1975.
  23. Krimigis, S. M., J. W. Kohl, and T. P. Armstrong, The Magnetospheric Contribution to the Quiet Time Low Energy Nucleon Spectrum in the Vicinity of Earth, Geophys. Res. Lett., 2, 457-460, 1975.
  24. Armstrong, T. P., S. M. Krimigis, D. Hovestadt, B. Klecker, and G. Gloeckler, Observations of Temporal and Spatial Variations in the Fe/O Charge Compositions of the Solar Particle Event of July 4, 1974, Solar Physics, 49, 395-407, 1976.
  25. Sarris, E. T., S. M. Krimigis, T. Iijima, C. O. Bostrom, and T. P. Armstrong, Location of the Source of Magnetospheric Energetic Particle Bursts by Multispacecraft Observations, Geophys. Res. Lett., 3, 437-440, 1976.
  26. Sarris, E. T., S. M. Krimigis, and T. P. Armstrong, Observations of a High Energy Shock Spike in Interplanetary Space, Geophys. Res. Lett., 3, 133-136, 1976.
  27. Armstrong, T. P., and S. M. Krimigis, Interplanetary Acceleration of Relativistic Electrons Observed with IMP-7, J. Geophys. Res., 81, 677-682, 1976.
  28. Sarris, E. T., S. M. Krimigis, and T. P. Armstrong, Observations of Magnetospheric Bursts of High Energy Protons and Electrons at 35 Re with IMP-7, J. Geophys. Res., 81, 2341-2355, 1976.
  29. Kirsch, E., S. M. Krimigis, E. T. Sarris, R. P. Lepping, and T. P. Armstrong, Possible Evidence for Large, Transient Electric Fields in the Magnetotail from Oppositely Directed Anisotropies of Energetic Protons and Electrons, Geophys. Res. Lett., 4, 137-140, 1977.
  30. Krimigis, S. M., T. P. Armstrong, W. I. Axford, C. O. Bostrom, C. Y. Fan, G. Gloeckler, and L. J. Lanzerotti, The Low Energy Charged Particle (LECP) Experiment on the Voyager Spacecraft, Space Science Reviews, 21, 329-354, 1977.
  31. Sarris, E. T., S. M. Krimigis, C. O. Bostrom, and T. P. Armstrong, Simultaneous Multispacecraft Observations of Energetic Proton and Electron Bursts Inside and Outside the Magnetosphere, J. Geophys. Res., 83, 4289-4305, 1978.
  32. Armstrong, T. P., S. M. Krimigis, and R. P. Lepping, Magnetosheath Bursts of Predominantly Medium Nuclei Observed with IMP-8 on February 16, 1974, J. Geophys. Res., 83, 5198-5206, 1978.
  33. Zwickl, R. D., E. C. Roelof, R. E. Gold, S. M. Krimigis, and T. P. Armstrong, Z-rich Solar Particle Event Characteristics 1972-1976, Astrophys. J., 225, 281-303, 1978.
  34. Briggs, P. R., T. P. Armstrong, and S. M. Krimigis, Hydrogen over Helium Enhancement in Successive Solar Flare Particle Events from the Same Active Region, Astrophys. J. Lett., 228, L83, 1979.
  35. Krimigis, S. M., T. P. Armstrong, W. I. Axford, C. O. Bostrom, C. Y. Fan, G. Gloeckler, L. J. Lanzerotti, E. P. Keath, R. D. Zwickl, J. F. Carbary, and D. C. Hamilton, Low Energy Charged Particle Environment at Jupiter: A First Look, Science, 204, 998-1003, 1979.
  36. Armstrong, T. P., L. J. Lanzerotti, and S. M. Krimigis, Comment on "Electron Calibration of Instrumentation for Low-Energy High Intensity Particle Measurements at Mercury" by Christon, Daly, Eraker, Perkins, Simpson, and Tuzzolino, J. Geophys. Res., 84, 4468-4470, 1979.
  37. Decker, R. B., and T. P. Armstrong, Study of Solar Electron Events from October 1972 through December 1974 from IMPs 7 and 8, J. Geophys. Res., 84, 7334-7347, 1979.
  38. Krimigis, S. M., T. P. Armstrong, W. I. Axford, C. O. Bostrom, C. Y. Fan, G. Gloeckler, L. J. Lanzerotti, E. P. Keath, R. D. Zwickl, J. F. Carbary, and D. C. Hamilton, Hot Plasma Environment at Jupiter: Voyager 2 Results, Science, 206, 977-984, 1979.
  39. Burlaga, L., R. Lepping, R. Weber, T. Armstrong, C. Goodrich, J. Sullivan, D. Gurnett, P. Kellogg, E. Keppler, F. Mariani, F. Neubauer, and R. Schwenn, Interplanetary Particles and Fields, November 22-December 6, 1977: Helios, Voyager, and IMP Observations between 0.6 and 1.6 AU, J. Geophys. Res., 85, 2227-2242, 1980.
  40. Zwickl, R. D., S. M. Krimigis, T. P. Armstrong, and L. J. Lanzerotti, Ions of Jovian Origin Observed by Voyager 1 and 2 in Interplanetary Space, Geophys. Res. Lett., 7, 453-456, 1980.
  41. Lanzerotti, L. J., C. G. Maclennan, S. M. Krimigis, T. P. Armstrong, K. W. Behannon, and N. F. Ness, Statics of the Nightside Jovian Plasma Sheet, Geophys. Res. Lett., 7, 817-820, 1980.
  42. Hamilton, D. C., G. Gloeckler, C. O. Bostrom, T. P. Armstrong, W. I. Axford, C. Y. Fan, L. J. Lanzerotti, and D. M. Hunten, Detection of Energetic Hydrogen Molecules in Jupiter's Magnetosphere by Voyager 2: Evidence for an Ionospheric Plasma Source, Geophys. Res. Lett., 7, 813-816, 1980.

More Armstrong Refereed Publications:
1965-1980 (this page)
1981-1989
1990-1999
2000-Present

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Updated 12/7/09, T. Hunt-Ward
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