【摘要】 用最大熵谱方法分析了廿周太阳质子事件资料,得知在周期值T=23.3月处,功率谱具有很锐的极大;T=126月处的次极大亦颇为突出。这类分析对于探讨质子事件的周期性,以及中、长期预报皆有一定的实用价值。更多还原

【Abstract】 High resolution power spectrum of the solar proton events of cycle 20 are obtained by the use of the method of the maximum entropy spectral analysis. In order to form a time-series of data, a weight factor 2n is given each event with class n (n=0, 1, 2, 3, 4) and zero for no proton events. The procedure of our analysis is based on refs. [3] and [4] (see eqs. (1)-(2) in this paper). The results show that a period of 23.3 months of the solar proton events of cycle 20 is significant, and another period of 126 months is also clear. Some brief discussions are presented.更多还原