34th Solar Physics Division Meeting, June 2003
Session 1 Corona I
Oral, Monday, June 16, 2003, 9:00am-12:00noon, Auditorium

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[1.11] A High Frequency Wave Search using TRACE

C.E. DeForest (Southwest Research Institute), B.D. DePontieu (Lockheed), D.M. Hassler (Southwest Research Institute)

We report on a possible detection of 100-milliHz band fast-mode waves in the solar chromosphere, seen with TRACE. Near the end of 2002, TRACE collected extremely high cadence images in the 1600 Åcontinuum; initial studies show a possible signature of waves propagating near the coronal Alfven speed with periods as low as 10 seconds. Waves at this frequency are near the high frequency limit because the period is only ~ 10-100 times the ion-electron collision time. We present these initial results and the outcome of an ongoing follow-on study.

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Bulletin of the American Astronomical Society, 35 #3
© 2003. The American Astronomical Soceity.