PERIODICITIES IN THE N-S ASYMMETRY OF LONG-LIVED SOLAR FILAMENTS

Citation
Pi. Duchlev et Vn. Dermendjiev, PERIODICITIES IN THE N-S ASYMMETRY OF LONG-LIVED SOLAR FILAMENTS, Solar physics, 168(1), 1996, pp. 205-210
Citations number
22
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00380938
Volume
168
Issue
1
Year of publication
1996
Pages
205 - 210
Database
ISI
SICI code
0038-0938(1996)168:1<205:PITNAO>2.0.ZU;2-R
Abstract
The N-S asymmetry of the long-lived solar filaments published in the M eudon catalogues for the time interval 1919-1989 is studied by means o f power-spectrum analysis. Statistically significant periods of 35.0 a nd 11.7 yr are obtained. There are no statistically significant period s shorter than 11 yr.