论文标题
太阳冠状旋转中半球不对称性与太阳能周期期间太阳能活性之间有很强关系的证据24
Evidence of strong relationship between hemispheric asymmetry in solar coronal rotation and solar activity during solar cycle 24
论文作者
论文摘要
在本文中，我们报告了半球不对称性在太阳冠状旋转速率和太阳能活动中非常高且具有统计学意义的关系的证据。我们的方法基于与年度太阳活动指标的旋转速率的半球不对称指数（AI）的跨相关性。为了获得太阳旋转速率的半球不对称性，我们在30.4 nm，19.5 nm和28.4 nm波长处使用太阳能全盘（SFD）图像，用于第24个太阳能周期，即在2008年至2018年的时间内，如Solarterrestrial Rantertanter Rassitation（Sterereo Operveratory Ombertatory（Sterereo）空间任务所记录的。我们的分析表明，从2011年到2014年，在太阳最大值期间，旋转速率的半球不对称性很高。另一方面，半球不对称的两侧逐渐下降（即，从2008年到2014年，从2014年到2018年）。结果表明，不对称指数（AI）导致黑子数量约1.56年。这清楚地表明，半球不对称会触发与太阳的差异旋转一起工作的黑子的形成。
In this article, we report an evidence of very high and statistically significant relationship between hemispheric asymmetry in solar coronal rotation rate and solar activity. Our approach is based on cross correlation of hemispheric asymmetry index (AI) in rotation rate with annual solar activity indicators. To obtain hemispheric asymmetry in solar rotation rate, we use solar full disc (SFD) images at 30.4 nm, 19.5 nm, and 28.4 nm wavelengths for 24th Solar Cycle i.e., for the period from 2008 to 2018, as recorded by the Solar Terrestrial Relations Observatory (STEREO) space mission. Our analysis shows that hemispheric asymmetry in rotation rate is high during the solar maxima from 2011 to 2014. On the other hand, hemispheric asymmetry drops gradually on both sides (i.e., from 2008 to 2011 and from 2014 to 2018). The results show that asymmetry index (AI) leads sunspot numbers by ~1.56 years. This gives a clear indication that hemispheric asymmetry triggers the formation of sunspots working together with the differential rotation of the Sun.
