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Van Allen Probes Bibliography is from August 2012 through September 2021
Found 3 entries in the Bibliography.
Showing entries from 1 through 3
The First Observation of N+ Electromagnetic Ion Cyclotron Waves
Abstract Observations from past space missions report on the significant abundance of N+, in addition to those of O+, outflowing from the terrestrial ionosphere and populating the near-Earth region. However, instruments on board current space missions lack the mass resolution to distinguish between the two, and often the role of N+ in regulating the magnetosphere dynamics, is lumped together with that of O+ ions. For instance, our understanding regarding the role of electromagnetic ion cyclotron (EMIC) waves in controlling t ...
Published by: Journal of Geophysical Research: Space Physics Published on: 02/2021
YEAR: 2021   DOI: https://doi.org/10.1029/2020JA028716
electromagnetic ion cyclotron waves; heavy ions; Van Allen Probes; N+ EMIC Wave; Wave-particle interaction; inner magnetosphere
Variation in crossover frequency of EMIC waves in plasmasphere estimated from ion cyclotron whistler waves observed by Van Allen Probe A
We report variations in the propagation of the H+ band ion cyclotron whistlers observed by Van Allen Probe A. Ion cyclotron whistlers are one of the EMIC (electromagnetic ion cyclotron) waves generated by mode conversion from lightning whistlers. Crossover frequency is an important frequency for the ion cyclotron whistlers, which is a function of the variations in the local heavy-ion composition. We surveyed waveform data obtained by the Electric and Magnetic Field Instrument and Integrated Science instrument and found that ...
Matsuda, Shoya; Kasahara, Yoshiya; Kletzing, Craig;
Published by: Geophysical Research Letters Published on: 01/2016
YEAR: 2016   DOI: 10.1002/2015GL066893
EMIC wave; ion cyclotron whistler; plasmasphere; heavy ions; Van Allen Probes
Heavy-ion dominance near Cluster perigees
Time periods in which heavy ions dominate over H+ in the energy range of 1-40 keV were observed by the Cluster Ion Spectrometry (CIS)/COmposition DIstribution Function (CODIF) instrument onboard Cluster Spacecraft 4 at L-values less than 4. The characteristic feature is a narrow flux peak at around 10 keV that extends into low L-values, with He+ and/or O+ dominating. In the present work we perform a statistical study of these events and examine their temporal occurrence and spatial distribution. The observed features, both t ...
Ferradas, C.; Zhang, J.-C.; Kistler, L.; Spence, H.;
Published by: Journal of Geophysical Research: Space Physics Published on: 10/2015
YEAR: 2015   DOI: 10.1002/2015JA021063
charge exchange; Cluster; heavy ions; inner magnetosphere; plasma sheet; ring current