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Thomas P. Armstrong - Refereed Publications

 

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

 

Publications - 1965-1980

 

• 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.
• Krimigis, S. M., and T. P. Armstrong, Observations of Protons in the Magnetosphere with Mariner IV, J. Geophys. Res., 71, 4641-4650, 1966.
• 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.
• Armstrong, T. P., and D. Montgomery, Asymptotic State of the Two Stream Instability, J. Plasma Phys., 1, 425-433, 1967.
• Armstrong, T. P., Numerical Studies of the Nonlinear Vlasov Equation, Physics of Fluids, 10, 1269-1280, 1967.
• 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.
• 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.
• Freidberg, J. P., and T. P. Armstrong, Nonlinear Development of the Two-stream Instability, Physics of Fluids, 11, 2669-2679, 1968.
• 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.
• 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.
• 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.
• Armstrong, T. P., and D. C. Montgomery, Numerical Study of Weakly Unstable Plasma Oscillations, Physics of Fluids, 12, 2094-2098, 1969.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• Hewett, D. W., and T. P. Armstrong, Nonlinear Landau Damping in a Radially Inhomogeneous Cylindrical Plasma, Physics of Fluids, 17, 595-599, 1974.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• Armstrong, T. P., and S. M. Krimigis, Interplanetary Acceleration of Relativistic Electrons Observed with IMP-7, J. Geophys. Res., 81, 677-682, 1976.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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.
• 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 (below)
·1981-1989
·1990-1999
·2000-Present

Updated 2/1/2019
Cameron Crane