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Van Allen Probes Bibliography is from August 2012 through September 2021
Found 2 entries in the Bibliography.
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Anisotropic velocity distributions of protons have long been considered as free energy sources for exciting electromagnetic ion cyclotron (EMIC) waves in the Earth\textquoterights magnetosphere. Here we rigorously calculated the proton anisotropy parameter using proton data obtained from Van Allen Probe-A observations. The calculations are performed for times during EMIC wave events (distinguishing the times immediately after and before EMIC wave onsets) and for times exhibiting no EMIC waves. We find that the anisotropy val ...
Published by: Journal of Geophysical Research: Space Physics Published on: 08/2018
YEAR: 2018   DOI: 10.1029/2018JA025385
Excitation mechanisms of highly oblique, quasi-electrostatic lower band chorus waves are investigated using Van Allen Probes observations near the equator of the Earth\textquoterights magnetosphere. Linear growth rates are evaluated based on in situ, measured electron velocity distributions and plasma conditions and compared with simultaneously observed wave frequency spectra and wave normal angles. Accordingly, two distinct excitation mechanisms of highly oblique lower band chorus have been clearly identified for the first ...
Published by: Geophysical Research Letters Published on: 09/2016
YEAR: 2016   DOI: 10.1002/grl.v43.1710.1002/2016GL070386