Now showing items 1-5 of 5

    • Early time evolution of a chemically produced electron depletion 

      Scales, Wayne A.; Bernhardt, P. A.; Ganguli, Gurudas (American Geophysical Union, 1995-01-01)
      The early time evolution of an ionospheric electron depletion produced by a radially expanding electron attachment chemical release is studied with a two-dimensional simulation model. The model includes electron attachment ...
    • Early time evolution of negative-ion clouds and electron-density depletions produced during electron-attachment chemical-release experiments 

      Scales, Wayne A.; Bernhardt, P. A.; Ganguli, Gurudas (American Geophysical Union, 1994-01-01)
      Two-dimensional electrostatic particle-in-cell simulations are used to study the early time evolution of electron depletions and negative ion clouds produced during electron attachment chemical releases in the ionosphere. ...
    • Low Frequency Oscillations in A Plasma with Spatially Variable Field-Aligned Flow 

      Ganguli, Gurudas; Slinker, S.; Gavrishchaka, V.; Scales, Wayne A. (AIP Publishing, 2002-05-01)
      The effects of a transverse gradient in the plasma flow velocity parallel to the ambient magnetic field are analyzed. A transverse velocity gradient in the parallel ion flow, even in small magnitude, can increase the ...
    • Model for nonlinear evolution of localized ion ring beam in magnetoplasma 

      Scales, Wayne A.; Ganguli, Gurudas; Rudakov, Leonid; Mithaiwala, Manish (AIP Publishing, 2012-06-01)
      An electrostatic hybrid model, which investigates the nonlinear evolution of a localized ion ring beam in a magnetoplasma, is described and applied to the generation and evolution of turbulence in the very low frequency ...
    • Three dimensional character of whistler turbulence 

      Ganguli, Gurudas; Rudakov, Leonid; Scales, Wayne A.; Wang, Joseph C.; Mithaiwala, Manish (AIP Publishing, 2010-05-01)
      It is shown that the dominant nonlinear effect makes the evolution of whistler turbulence essentially three dimensional in character. Induced nonlinear scattering due to slow density perturbation resulting from ponderomotive ...