Physics – Plasma Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm13b2085l&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SM13B-2085
Physics
Plasma Physics
[2487] Ionosphere / Wave Propagation, [2753] Magnetospheric Physics / Numerical Modeling, [7837] Space Plasma Physics / Neutral Particles
Scientific paper
In this study we investigated the coupling properties of electron waves in inhomogeneous plasma with neutrals by a time-dependent numerical simulation. Plasma wave propagation is influenced by electron density gradient and electron-neutral collisions. Electromagnetic waves are mode converted into upper hybrid resonance(UHR) waves at the local resonant region when there exists electron density gradient perpendicular to the ambient magnetic field. On the other hand, when the waves propagate through plasma with the neutral atmosphere, the waves are considerably damped due to electron-neutral collisions. By analyzing variations of both electric and magnetic field components in space and time, we demonstrate how the electron-neutral collisions differently affect the mode conversion of electron waves into UHR waves and the attenuation of fast modes.
Kim Kyounghee
Lee Daehee
Lee Edward
Lee Julian
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