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

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Abstract

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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Authors and Affiliations

  1. Institute of Astronomy and NAO, 1784, Sofia, Bulgaria

    P. I. Duchlev & V. N. Dermendjiev

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  1. P. I. Duchlev
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  2. V. N. Dermendjiev
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Duchlev, P.I., Dermendjiev, V.N. Periodicities in the N-S asymmetry of long-lived solar filaments. Sol Phys 168, 205–210 (1996). https://doi.org/10.1007/BF00145836

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  • DOI: https://doi.org/10.1007/BF00145836

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