Connections Between Global Solar Magnetic Field Evolution and Interplanetary Transients

该项目将结合Wilcox太阳天文台现场数据和航天器现场数据或日冕仪活动，审查与太阳场演变与日冕和行星际现象之间的联系有关的至少三个问题。这些问题包括：(1)源表面外通量的太阳周期变化与日冕物质抛射的出现率以及与之相对的行星际太阳风热通量损失之间的关系是什么？(2)日冕场模型中所看到的日冕场结构演变与日冕CMES的位置和特征之间有什么关系？(3)行星际日冕物质抛射场的出现与其投影源区的日冕场结构之间有什么关系？这些研究的结果将提供利用全球太阳磁场观测作为理解和预测行星际瞬变现象的多功能工具的新方法。

This project will combine Wilcox Solar Observatory field data and spacecraft in-situ data or coronagraph activities to examine at least three questions related to the connection between evolution of the solar field and coronal and interplanetary phenomena. These questions include: (1) What is the relationship between the solar cycle variation of the flux out of the source surface and the occurrence rates of coronal mass ejections and their opposite counterparts, interplanetary solar wind heat flux dropouts? (2) What is the relationship between the coronal field structure evolution, as seen in the coronal field models, and the locations and characteristics of coronagraph CMEs? (3) What is the relationship between the appearance of interplanetary coronal mass ejection fields and the structure of the coronal fields in their projected source regions? Results of these studies will provide new ways of exploiting global solar magnetic field observations as a multi-purpose tool for understanding and predicting interplanetary transient phenomena.