Constraining the Solar Activity Cycle Using GONG Data

Korzennik, Sylvain 95-21777 Korzennik 博士将分析和解释来自全球振荡网络组 (GONG) 的太阳数据，以加深我们对太阳黑子 11 年周期和太阳磁活动的原因的理解。 数十年的磁活动研究强烈表明，活动周期在某种程度上是由涉及内部旋转和对流相互作用的发电机过程引起的。 不幸的是，由于我们无法测量太阳深处的旋转或对流，对这一过程的详细理解受到了阻碍。 GONG 的日震数据将允许研究太阳表面及其下方的旋转和对流流动，其速度精度和空间分辨率足以测试太阳磁场生成的理论模型。

Korzennik, Sylvain 95-21777 Dr. Korzennik will analyze and interpret solar data from the Global Oscillations Network Group (GONG) in order to advance our understanding of the causes of the 11-year cycle of sunspots and solar magnetic activity. Decades of study of magnetic activity strongly suggest that the activity cycle is somehow caused by a dynamo process involving the interaction of rotation and convection in the interior. Unfortunately, detailed understanding of this process is frustrated by our inability to measure the rotation or convective flows deep within the Sun. Helioseismic data from the GONG will permit the study of rotational and convective flows at and beneath the solar surface, with velocity precision and spatial resolution sufficient to test theoretical models of solar magnetic field generation.