Abstract

Polar and low-latitude faculae were identified in daily images based on white-light observations from the MDI (1996–2011) and SOHO (2010–2019) space observatories. The boundaries of the faculae were combined with magnetic field observations at the closest possible instant of observation. The time and latitude distributions, as well as other properties of polar and low-latitude faculae, were analyzed. The resulting data on polar faculae were supplemented with observational data from Mitaka Observatory (Japan) for the period of 1951–1999. Thus, we compiled a summary series of polar activity for the period of 1951–2019. The distributions of polar faculae by area and magnetic field intensity are considered. The maximum distribution of the facula area at latitudes above θ > 55° occurs at values of approximately 6–10 mhs. The magnetic field of polar faculae has a maximum of B ~ 70–100 G. The amplitude of polar activity at the minimum in the 25th cycle approximately matches the amplitude in the 24th cycle. It can be expected that the amplitude of the sunspot activity cycle will be close to that of cycle 24.

中文翻译：

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活动周期23–24的极地和低纬度草丛

摘要

根据来自MDI（1996-2011年）和SOHO（2010-2019年）空间天文台的白光观测，在日常图像中确定了极地和低纬度的文库。在最接近的观测时刻，将晶界的边界与磁场观测结合起来。分析了极地和低纬地区的时间和纬度分布以及其他特性。由此得出的极地小角目资料还补充了日本三鹰天文台1951-1999年的观测资料。因此，我们编制了1951-2019年期间极地活动的摘要系列。考虑了按面积和磁场强度分布的极小分子。在θ> 55°以上的纬度处，光斑面积的最大分布出现在大约6–10 mhs的值上。乙〜70-100 G.极性活性的最小值出现在第25个周期中的振幅大致匹配在第24周期的幅度。可以预期，黑子活动周期的幅度将接近周期24的幅度。