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Fine structure and oscillations of a quiescent prominence

Published online by Cambridge University Press:  14 March 2005

N. Petrov ,
P. Duchlev ,
B. Rompolt  and
P. Rudawy
N. Petrov
Affiliation:
Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria
P. Duchlev
Affiliation:
Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria
B. Rompolt
Affiliation:
Astronomical Institute of the Wroclaw University, Poland
P. Rudawy
Affiliation:
Astronomical Institute of the Wroclaw University, Poland
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Abstract

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Series of H$_\alpha$ spectra and slit-jaw H$_\alpha$ filtergrams of a quiescent prominence (QP) taken at Pic du Midi Observatory on 7 November 1977 are studied. The image processing of the H$_\alpha$ filtergrams reveals an internal structure of the prominence consisting of several arches. Series of high-resolution H$_\alpha$ spectra obtained with the slit located on selected parts of one of the prominence arches chosen for Doppler shift analysis. The prominence arch show cyclic displacement along the line-of-sight (L.O.S.) direction implying Alfven string-mode oscillations.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS223 , June 2004 , pp. 293 - 294
Copyright
© 2004 International Astronomical Union