Potential waves for pitch-angle scattering of near-equatorially mirroring energetic electrons due to the violation of the second adiabatic invariant

Details Potential waves for pitch-angle scattering of near-equatorially mirroring energetic electrons due to the violation of the second adiabatic invariant Potential waves for pitch-angle scattering of near-equatorially mirroring energetic electrons due to the violation of the second adiabatic invariant

Jun 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3612106s&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 12, CiteID L12106

Physics

13

Magnetospheric Physics: Radiation Belts, Magnetospheric Physics: Magnetosphere: Inner, Magnetospheric Physics: Plasma Waves And Instabilities (2471), Magnetospheric Physics: Energetic Particles: Precipitating

Scientific paper

Bounce and MLT averaged diffusion rates due to gyroresonance scattering by plasmaspheric hiss, lightning generated whistlers, and whistlers due to VLF transmitters inside the plasmasphere; and chorus waves outside the plasmasphere; are computed in high resolution in pitch-angle. The computed rates show that another scattering mechanism is required to provide pitch-angle scatting for nearly equatorially mirroring particles at low energies outside the plasmasphere and at a wide range of energies in the slot region. We show that magnetosonic waves and ElectroMagnetic Ion Cyclotron (EMIC) waves can be in bounce resonance with electrons for a wide range of energies and pitch-angles, and may be responsible for the scattering of electrons with equatorial pitch-angels close to 90°. Bounce resonance may also result in an in-situ acceleration of equatorially mirroring particles.

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