Lomb–Scargle periodogram analysis of the periods around 5.5 year and 11 year in the international sunspot numbers
Lomb–Scargle periodogram analysis of the periods around 5.5 year and 11 year in the international sunspot numbers
复制标题
国际太阳黑子数中5.5年和11年左右周期的Lomb-Scargle周期图分析
DOI:
10.1007/s10509-018-3332-z
复制
发表时间:
2018-06
期刊:
影响因子:
--
通讯作者:
祝凤荣
中科院分区:
文献类型:
--
作者:
祝凤荣
The New International Sunspot Numbers (NISNs) have been successfully compiled and can be downloaded from the World Data Center-Sunspot index and Long-term Solar Observations, Royal Observatory of Belgium, Brussels. The periods in these NISNs have been studied by using the Lomb–Scargle periodogram. The results show that the international sunspot numbers have a lot of periods. Of the various periods, the most outstanding period around 11 year is 10.108 year after removing the 10.862 year signal from the time series of sunspot numbers, while the periods of 11.988 year, 7.990 year, 9.612 year, 5.445 year, 8.915 year, 5.792 year are also found with the period of 5.445 year being stronger than those of 5.792 year and 8.915 year. However, the period of 5.445 year is still much weaker than the period of 10.862 year. It is evident that the periods around 11 year and 5.5 year in the revised international sunspot numbers obtained by using the Lomb–Scargle periodogram method is somewhat different from the ones in previous studies.
登录
查看更多内容
影响因子:
2.8
作者:
Steven G. Lenhorst
通讯作者:
Steven G. Lenhorst
影响因子:
20.9
作者:
Hathaway DH
通讯作者:
Hathaway DH
影响因子:
6.5
作者:
V. I. Haneychuk;V. Kotov;T. Tsap
通讯作者:
V. I. Haneychuk;V. Kotov;T. Tsap
DOI:
10.1088/1009-9271/4/6/578
发表时间:
2004-12
期刊:
Chinese Journal of Astronomy and Astrophysics
影响因子:
--
作者:
G. Le
通讯作者:
G. Le
影响因子:
2.8
作者:
K. R. Rao
通讯作者:
K. R. Rao