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    Gyrophase-bunched Electrons: Cluster Observations and Simulations (2003)
    In:  Other Sources
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    Publication Date: 2019-07-18
    Description: The interaction of the solar wind with the Earth's bow shock is responsible for a number of phenomena both upstream and downstream. One of the least understood and studied of these is the generation of gyrophase-bunched electrons. We will describe initial work searching for and analyzing such events in (Plasma Electron And Current Experiment (PEACE) data from CLUSTER. Plasma simulations will complement the data analysis. Recent analyses suggest that gyrophase-bunched electrons are present rather frequently in the upstream region, due either to energization in the reflection off the shock front or, more likely, to phase trapping in locally produced whistler wave fields.
    Keywords: Space Radiation
    Type: Yosemite 2003 Conference; Jan 01, 2003; CA; United States
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Test particle acceleration in turbulent reconnecting magnetic fields (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: The effect of turbulence on particle acceleration in a MHD field was investigated by computing test particle trajectories in turbulent MHD reconnecting fields, including reconnection simulations at different magnetic Reynolds numbers. The dynamics of individual particles were investigated making it possible to examine the acceleration mechanism in great detail. It was found that turbulence influences the acceleration in two ways. It enhances the reconnection electric field while producing a stochastic electric field that gives rise to momentum diffusion; and it produces magnetic 'bubbles' and other irregularities that can temporarily trap test particles in the strong reconnection electric field for times comparable to the magnetofluid characteristic time.
    Keywords: PLASMA PHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 93; 14383-14
    Format: text
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    NASA TECHNICAL REPORTS
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