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Flows in quiescent prominences
Authors:Jack B. Zirker  Oddbjørn Engvold  Zhang Yi
Affiliation:(1) National Solar Observatory, 88349 Sunspot, New Mexico, USA;(2) Institute of Theoretical Astrophysics, University of Oslo, Blindern, P.O. Box 1029, N-0315 Oslo, Norway
Abstract:Earlier studies of quiescent prominences claim that there is a systematic downward directed motion of the small-scale structure. Disk observations, on the other hand, have detected mass motions both upwards and downwards. The earlier high-resolution observations of limb prominences have been re-examined using local cross-correlation techniques for measurements of motion perpendicular to the line of sight. The new measurements reveal flow speeds and directions that are in good agreement with current Doppler measurements on the disk.
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