Periodicities in the N-S asymmetry of long-lived solar filaments

The N-S asymmetry of the long-lived solar filaments published in the Meudon catalogues for the time interval 1919-1989 is studied by means of power-spectrum analysis. Statistically significant periods of 35.0 and 11.7 yr are obtained. There are no statistically significant periods shorter than 11 yr...

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Bibliographic Details
Published in:Solar physics 1996-09, Vol.168 (1), p.205-210
Main Authors: Duchlev, P. I., Dermendjiev, V. N.
Format: Article
Language:English
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Summary:The N-S asymmetry of the long-lived solar filaments published in the Meudon catalogues for the time interval 1919-1989 is studied by means of power-spectrum analysis. Statistically significant periods of 35.0 and 11.7 yr are obtained. There are no statistically significant periods shorter than 11 yr.
ISSN:0038-0938
1573-093X
DOI:10.1007/BF00145836