John Wygant
Associate Professor
371 Tate, 626-8921, email jwygant @ ham.space.umn.eduhttp://ham.space.umn.edu
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Current Research
My interests include spacecraft measurement of electric fields and particle acceleration in space plasmas. Some of the topics we investigate are the structure and dynamics of collisionless shocks and nonlinear wave modes, aurora acceleration mechanisms, energy release due to magnetic reconnection, energetic particle acceleration and radiation belts, and the large scale convection of magnetospheric plasmas.
Selected Publications
J. R. Wygant, A. Keiling, C. A. Cattell, R. L. Lysak, M. Temerin, C. A. Kletzing and J. D. Scudder, F. S. Mozer,V. Streltsov, W. Lotko, C. T. Russell, Evidence for Kinetic Alfven Waves and parallel electron energyization at 4-6 Re altitudes in the plasmasheet boundary layer, J. of Geophys. Res., 2002 [abstract]
J. R. Wygant, C. A. Cattell, R. Lysak, J. Dombeck,J. McFadden, F.S. Mozer, C.W. Carlson, I. Roth, M. Temerin, E.A. Lucek, A. Balogh, M. Andre, H. Reme , Cluster spacecraft observations of the structure of the normal component the electric and its relation to ballistic acceleration of mono-energetic ion beams across a thin reconnecting current layer, submitted J. of Geophys. Res., July 2004 [abstract]
J. Wygant, Polar Spacecraft Based Comparisons of Intense Electric Fields and Poynting Flux Near and Within the Plasma Sheet-Tail Lobe Boundary to UVI Images: An Energy Source for the Aurora, J. Geophys. Res. (2000).
J. Wygant, Dependence of the Large Scale Electric Field in the Inner Magnetosphere on Geomagnetic Activity, J. Geophys Res. (1998).
J. Wygant, Role of the Large Scale Electric Field in the Inner Magnetosphere in the Generation of the Ring Current Plasma, J. Geophys. Res. (1998).
J. Wygant, Large Amplitude Electric and Magnetic Field Signatures in the Inner Magnetosphere During an SSC Induced Injection of 15 MeV Electron Drift Echoes, Geophys. Res. Lett., 21, 16, 1739-1742 (1994).
J. Wygant, Electric Field Measurements at Sub-Critical, Oblique Bow Shock Crossings, J. Geophys. Res., 92, 11, 109 (1987).
Education