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Poloidal mode wave-particle interactions inferred from Van Allen Probes and CARISMA ground-based observations

Ultra-low-frequency (ULF) wave and test particle models are used to investigate the pitch angle and energy dependence of ion differential fluxes measured by the Van Allen Probes spacecraft on October 6th, 2012. Analysis of the satellite data reveals modulations in differential flux resulting from drift resonance between H+ ions and fundamental mode poloidal Alfv\ en waves detected near the magnetic equator at L\~5.7. Results obtained from simulations reproduce important features of the observations, including a substantial e ...

Wang, C.; Rankin, R.; Wang, Y.; Zong, Q.-G.; Zhou, X.; Takahashi, K.; Marchand, R.; Degeling, A.;

YEAR: 2018     DOI: 10.1029/2017JA025123

ULF wave; drift-resonant; test particle simulation; Van Allen Probes


The effect of ULF compressional modes and field line resonances on relativistic electron dynamics

The adiabatic, drift-resonant interaction between relativistic, equatorially mirroring electrons and a ULF compressional wave that couples to a field line resonance (FLR) is modelled. Investigations are focussed on the effect of azimuthal localisation in wave amplitude on the electron dynamics. The ULF wave fields on the equatorial plane (r , φ ) are modelled using a box model [Zhu, X., Kivelson, M.G., 1988. Analytic formulation and quantitative solutions of the coupled ULF wave problem. J. Geophys. Res. 93(A8), 8602\text ...

Degeling, A.; Rankin, R.; Kabin, K.; Marchand, R.; Mann, I.R.;

YEAR: 2007     DOI: 10.1016/j.pss.2006.04.039

Radial Transport