Buoyancy Waves in Earth's Nightside Magnetosphere: Normal-Mode Oscillations of Thin Filaments

<ul> <li>A theory has been developed for small oscillations of a thin filament in the magnetosphere.</li> <li>For the lowest-frequency even modes, the eigenfunctions are essentially buoyancy waves in the plasma sheet, but they are more like slow modes in the inner magnetosphere.</li> <li>For the lowest-frequency even modes, the eigenfrequencies (radians/s) have peak values of approximately 0.07 s^-1&nbsp;between the inner plasma sheet and plasmapause, for an average magnetospheric field.&nbsp;</li> <li>This includes software and model data used in this paper.</li> <li>Submitted to JGR for review</li> </ul>