The north–south asymmetry of filaments in solar cycles 16–21 |
| |
| Authors: | KJ Li XH Liu PX Gao LS Zhan |
| |
| Institution: | 1. National Astronomical Observatories/Yunnan Observatory, CAS, Kunming 650011, China;2. Key Laboratory of Solar Activity, National Astronomical Observatories, CAS, Beijing 100012, China;3. Department of Physics, Teachers’ Advanced College of Jiaozuo, Jiaozuo 454107, China;4. School of Graduate, CAS, Beijing 100863, China;5. Jingdezhen Ceramic College, Jingdezhen 330001, China |
| |
| Abstract: | In the present study, the north–south asymmetry of filaments in solar cycles 16–21 is investigated with the use of the solar filaments observed at the Observatoire de Paris, Section de Meudon from March 1919 to December 1989. Filament activity is found regularly dominated in each of cycles 16–21 in the same hemisphere as that inferred by sunspot activity, and it is found to run in a different asymmetrical behavior at different latitudinal bands, suggesting that the north–south asymmetry of filament activity should be a function of latitudes. The regularity on the north–south asymmetry of sunspot activity given by Li et al. (2002b) is demonstrated by filament activity. The periods in the north–south asymmetry of solar filament activity are 9.13, and 12.8 years without the solar cycle found. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
