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On the existence of oscillations in solar filaments observed in H alpha and C IV linesTime sequence observations of filaments in both the H alpha line and the 1548 A C IV line were analyzed with the Fourier transform technique in the frequency range (1 - 10 mHz). No oscillation is detected in filaments except at the footpoints where a steady velocity gradient is large. The energy is probably due to convective motions rather than pressure oscillations.
Document ID
19870011467
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmieder, B. (Observatoire de Paris-Meudon France)
Malherbe, J. M. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Mein, P. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Tandberg-Hanssen, E. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 5, 2013
Publication Date
December 1, 1986
Publication Information
Publication: NASA. Goddard Space Flight Center Coronal and Prominence Plasmas (SEE N87-20871 13-92)
Subject Category
Solar Physics
Accession Number
87N20900
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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