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首页> 美国卫生研究院文献>Springer Open Choice >The Behaviour of Galactic Cosmic-Ray Intensity During Solar Activity Cycle 24
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The Behaviour of Galactic Cosmic-Ray Intensity During Solar Activity Cycle 24

机译：太阳活动周期中银河宇宙射线强度的行为24

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摘要

We have studied long-term variations of galactic cosmic-ray (GCR) intensity in relation to the sunspot number (SSN) during the most recent solar cycles. This study analyses the time lag between the GCR intensity and SSN, and hysteresis plots of the GCR count rate against SSN for Solar Cycles 20 – 23, to validate a methodology against previous results in the literature, before applying the method to provide a timely update on the behaviour of Cycle 24. Plots of SSN versus GCR show a clear difference between the odd- and even-numbered cycles. Linear and elliptical models have been fit to the data, with the linear fit and elliptical model proving the more suitable model for even- and odd-numbered solar-activity cycles, respectively, in agreement with previous literature. Through the application of these methods for Solar Cycle 24, it has been shown that Cycle 24 experienced a lag of two to four months between the GCR intensity and SSN, and this follows the trend of the preceding activity cycles, albeit with a slightly longer lag than previous even-numbered cycles. It has been shown through the hysteresis analysis that the linear fit is a better representative model for Cycle 24, as the ellipse model does not show a significant improvement, which is also in agreement with previous even-numbered cycles.
机译：我们研究了最近太阳周期中银河系宇宙射线（GCR）强度相对于黑子数（SSN）的长期变化。这项研究分析了GCR强度和SSN之间的时滞，以及20 – 23太阳周期GCR计数率相对于SSN的磁滞图，以验证该方法与文献中的先前结果相符，然后应用该方法提供及时更新周期24的行为.SSN与GCR的图显示奇数和偶数周期之间存在明显差异。线性和椭圆模型已经适合数据，线性拟合和椭圆模型分别证明了更适合偶数和奇数太阳活动周期的模型，与先前的文献一致。通过将这些方法应用到太阳周期24中，已表明周期24在GCR强度和SSN之间经历了2-4个月的延迟，这遵循了先前活动周期的趋势，尽管滞后时间略长比以前的偶数周期大。通过滞后分析表明，线性拟合是Cycle 24的较好代表模型，因为椭圆模型没有显示出明显的改进，这也与以前的偶数循环一致。

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