Van Allen Probes Bibliography is from August 2012 through September 2021 Notice:
|
Van Allen Probe observations of drift-bounce resonances with Pc 4 pulsations and wave\textendashparticle interactions in the pre-midnight inner magnetosphere
Author | Korotova, G.; Sibeck, D.; Tahakashi, K.; Dai, L.; Spence, H.; Kletzing, C.; Wygant, J.; Manweiler, J.; Moya, P.; Hwang, K.-J.; Redmon, R.; |
Keywords | inner magnetosphere; Van Allen Probes |
Abstract | We present Van Allen Probe B observations of azimuthally limited, antisymmetric, poloidal Pc 4 electric and magnetic field pulsations in the pre-midnight sector of the magnetosphere from 05:40 to 06:00 UT on 1 May 2013. Oscillation periods were similar for the magnetic and electric fields and proton fluxes. The flux of energetic protons exhibited an energy-dependent response to the pulsations. Energetic proton variations were anticorrelated at medium and low energies. Although we attribute the pulsations to a drift-bounce resonance, we demonstrate that the energy-dependent response of the ion fluxes results from pulsation-associated velocities sweeping energy-dependent radial ion flux gradients back and forth past the spacecraft. |
Year of Publication | 2015 |
Journal | Annales Geophysicae |
Volume | 33 |
Number of Pages | 955-964 |
Section | |
Date Published | 01/2015 |
ISBN | |
URL | http://www.ann-geophys.net/33/955/2015/angeo-33-955-2015.pdf |
DOI | 10.5194/angeo-33-955-2015 |