Van Allen Probes Bibliography is from August 2012 through September 2021 Notice:
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Laboratory studies of nonlinear whistler wave processes in the Van Allen radiation belts
Author | Tejero, E.; Crabtree, C.; Blackwell, D.; Amatucci, W.; Mithaiwala, M.; Ganguli, G.; Rudakov, L.; |
Keywords | Nonlinear waves; Van Allen Belts |
Abstract | Important nonlinear wave-wave and wave-particle interactions that occur in the Earth\textquoterights Van Allen radiation belts are investigated in a laboratory experiment. Predominantly electrostatic waves in the whistler branch are launched that propagate near the resonance cone with measured wave normal angle greater than 85\textdegree . When the pump amplitude exceeds a threshold \~5\texttimes10-6 times the background magnetic field, wave power at frequencies below the pump frequency is observed at wave normal angles (\~55\textdegree) . The scattered wave has a perpendicular wavelength that is nearly an order of magnitude larger than that of the pump wave. Occasionally, the parametric decay of a lower hybrid wave into a magnetosonic wave and a whistler wave is simultaneously observed with a threshold of δB/B0\~7\texttimes10-7 . |
Year of Publication | 2015 |
Journal | Physics of Plasmas |
Volume | 22 |
Number of Pages | 091503 |
Section | |
Date Published | 09/2015 |
ISBN | |
URL | http://scitation.aip.org/content/aip/journal/pop/22/9/10.1063/1.4928944 |
DOI | 10.1063/1.4928944 |