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Van Allen Probes Bibliography is from August 2012 through September 2021
Found 4 entries in the Bibliography.
Showing entries from 1 through 4
Whistler mode chorus waves are particularly important in outer radiation belt dynamics due to their key role in controlling the acceleration and scattering of electrons over a very wide energy range. The efficiency of wave-particle resonant interactions is defined by whistler wave properties which have been described by the approximation of plane linear waves propagating through the cold plasma of the inner magnetosphere. However, recent observations of extremely high-amplitude whistlers suggest the importance of nonlinear w ...
Published by: Geophysical Research Letters Published on: 03/2018
YEAR: 2018   DOI: 10.1002/2017GL076957
Van Allen Probes have detected electron holes (EHs) around injection fronts in the outer radiation belt. Presumably generated near equator, EHs propagate to higher latitudes potentially resulting in energization of electrons trapped within EHs. This process has been recently shown to provide electrons with energies up to several tens of keV and requires EH propagation up to rather high latitudes. We have analyzed more than 100 EHs observed around a particular injection to determine their kinetic structure and potential energ ...
Published by: Journal of Geophysical Research: Space Physics Published on: 12/2016
YEAR: 2016   DOI: 10.1002/2016JA023083
Time Domain Structures (TDS) (electrostatic or electromagnetic electron holes, solitary waves, double layers, etc.) are >=1 msec pulses having significant parallel (to the background magnetic field) electric fields. They are abundant through space and occur in packets of hundreds in the outer Van Allen radiation belts where they produce magnetic-field-aligned electron pitch angle distributions at energies up to a hundred keV. TDS can provide the seed electrons that are later accelerated to relativistic energies by whistlers ...
Published by: Geophysical Research Letters Published on: 04/2015
YEAR: 2015   DOI: 10.1002/2015GL063946
The dynamics and structure of whistler turbulence relevant to electron acceleration in the Earth\textquoterights outer radiation belt is explored with simulations and comparisons with observations. An initial state with an electron temperature anisotropy in a spatially localized domain drives whistlers which scatter electrons. An outward propagating front of whistlers and hot electrons nonlinearly evolves to form regions of intense parallel electric field with structure similar to observations. The precipitating hot electron ...
Published by: Geophysical Research Letters Published on: 03/2015
YEAR: 2015   DOI: 10.1002/2015GL063528