Physics – Plasma Physics
Scientific paper
Sep 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jgra..11209218m&link_type=abstract
Journal of Geophysical Research, Volume 112, Issue A9, CiteID A09218
Physics
Plasma Physics
2
Space Plasma Physics: Active Perturbation Experiments, Space Plasma Physics: Kinetic Waves And Instabilities, Space Plasma Physics: Turbulence (4490), Magnetospheric Physics: Energetic Particles: Precipitating
Scientific paper
ULF waves generated by the release of a neutral gas in the equatorial plane of the Earth's magnetosphere will be trapped between two turning points forming a resonator. This effectively prolongs the lifetime of the ensuing turbulence making it more useful for pitch angle scattering trapped energetic electrons. In the multispecies plasma environment of the magnetosphere, the presence of a small amount of helium causes the waves to reflect when their frequency matches the Buchsbaum frequency as they travel along field lines away from the equator. For a proton-electron-helium plasma, the Buchsbaum frequency is near the helium cyclotron frequency. With typical abundances of helium in the inner radiation belts, there is virtually no loss of wave energy by cyclotron damping at the turning points as the waves reflect between conjugate Buchsbaum points. Wave energy is eventually dissipated by collisional effects and radial convection.
Ganguli Gurudas
Mithaiwala Manish
Rudakov Leonid
No associations
LandOfFree
Generation of a ULF wave resonator in the magnetosphere by neutral gas release does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Generation of a ULF wave resonator in the magnetosphere by neutral gas release, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generation of a ULF wave resonator in the magnetosphere by neutral gas release will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-967807