Relativistic electron scattering in electromagnetic turbulence
Christopher Chaston, Research Physicist
Space Sciences Laboratory
Closed. This professor is continuing with Fall 2023 apprentices on this project; no new apprentices needed for Spring 2024.
Recent discoveries in near-Earth space have demonstrated a correlation between rapid changes in relativistic electron populations and the onset of intervals of electromagnetic turbulence during geomagnetic storms. Understanding the dynamics of these energetic particles remains an enigma despite decades of observations and theoretical modeling. Multiple processes have been identified as driving these variations, yet the time scales and spatial distributions of the drivers often to do not concur with the observed variations. In this project we seek to determine if a robust correlation between the occurrence of broadband electromagnetic turbulence and variations in energetic electron fluxes exists. We will consider the processes that may lead to scattering and if the properties of the electrons observed are consistent with what may be expected through this interaction.
Role: The students will analyze observations from NASA’ Van Allen Probes spacecraft and implement data-analysis techniques to extract wave and particle distribution properties. Statistics will be compiled to examine the occurrence of wave activity and energetic electron flux variations through the near-Earth space region typically identified as the outer radiation belt. The student will gain experience in the implementation of spectral analysis techniques and familiarity with basic space plasma physics.
Qualifications: The student should be familiar with Maxwell's equations. The ability to write computer code is necessary.
Hours: 3-5 hrs
Off-Campus Research Site: Covid Safe/Remote
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