To investigate the periodic behaviour and relationship of sunspot numbers with cosmic ray intensity and solar wind speed, we present analysis from daily data generated from 1995 January to 2018 December. Cross-correlation and wavelet transform tools were employed to carry out the investigation. The analyses confirmed that the cosmic ray intensity correlates negatively with the sunspot numbers, exhibiting an asynchronous phase relationship with a strong negative correlation. The trend in cosmic ray intensity indicates that it undergoes the 11-year modulation that mainly depends on the solar activity in the heliosphere. On the other hand, the solar wind speed neither shows a clear phase relationship nor correlates with the sunspot numbers but shows a wide range of periodicities that could possibly be connected to the pattern of coronal hole configuration. A number of short and midterm variations were also observed from the wavelet analysis, i.e., 64–128 and 128–256 days for the cosmic ray intensity, 4–8, 32–64, 128–256, and 256–512 days for the solar wind speed, and 16–32, 32–64, 128–256, and 256–512 days for the sunspot numbers.

中文翻译：

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宇宙射线强度和太阳风速对太阳黑子数的响应和周期性变化

为了研究太阳黑子数与宇宙射线强度和太阳风速的周期性行为及其关系，我们对1995年1月至2018年12月的每日数据进行了分析。利用互相关和小波变换工具进行了研究。分析证实，宇宙射线强度与黑子数负相关，表现出具有强负相关性的异步相位关系。宇宙射线强度的趋势表明，它经历了11年的调制，这主要取决于太阳圈的太阳活动。另一方面，太阳风速既不显示清晰的相位关系，也不与黑子数相关，但显示出很宽的周期性，可能与日冕孔构型有关。小波分析还观察到了许多短期和中期的变化，即宇宙射线强度为64-128天和128-256天，宇宙射线强度为4-8天，32-64、128-256和256-512天。太阳风速，以及太阳黑子数的16-32、32-64、128-256和256-512天。