Physical Sciences and Mathematics Commons^™

On The Standing Wave Mode Of Giant Pulsations, K. Takahashi, N. Sato, J. Warnecke, H. Luhr, Harlan E. Spence, Y. Tonegawa

Physics & Astronomy

Both odd-mode and even-mode standing wave structures have been proposed for giant pulsations. Unless a conclusion is drawn on the field-aligned mode structure, little progress can be made in understanding the excitation mechanism of giant pulsations. In order to determine the standing wave mode, we have made a systematic survey of magnetic field data from the AMPTE CCE spacecraft and from ground stations located near the geomagnetic foot point of CCE. We selected time intervals when CCE was close to the magnetic equator and also magnetically close to Syowa and stations in Iceland, and when either transverse or compressional Pc …