Source Locations of Coronal Mass Ejections and the Large-Scale Solar Magnetic Field

本项目将对与日冕物质抛射（cme）有关的全球太阳场的大规模重构进行研究和分类。日冕抛射包括日冕的大规模重组和大量质量和能量向日球层的抛射。然而，我们对日冕物质抛射的起源和发展知之甚少，因此了解它们与太阳表面附近和低日冕的大规模磁场模式的关系是很重要的。我们建议从两个方面来解决这个问题。首先，我们将研究Skylab和SMM日冕物质抛射的源位置，并将它们映射到每次太阳旋转的天气图上。这样的地图现在可以追踪大规模的全球磁场，从光球层，穿过色球层，进入日冕。当按时间序列叠加时，这样的地图揭示了大尺度的磁场汇聚、发散和剪切模式。其次，将这些日冕物质抛射的位置与白光天气图和每日日冕图像进行比较，以确定日冕物质抛射与先前存在的日冕流光的关系。这个项目将提高我们对太阳活动，特别是日冕物质抛射，日冕结构和演化的物理认识，以及对日球层大规模扰动传播的认识。

This project will study and classify the kinds of large-scale restructuring of the global solar field which are related to Coronal Mass Ejections (CMEs). CMEs involve large-scale restructuring of the corona and the ejection of large amounts of mass and energy into the heliosphere. However, we know very little about how or where CMEs originate or how they develop, so it is important to understand their relationship to the large-scale magnetic fields patterns near the solar surface and in the low corona. We propose a two-part approach to this problem. First, we will study the source locations of Skylab and SMM CMEs determined by mapping them onto synoptic maps for each solar rotation. Such maps are now available tracing the large-scale global magnetic fields from the photosphere, through the chromosphere, and into the corona. When stacked in time-series, such maps reveal large-scale patters of convergence, divergence and shear of the fields. Second, the locations of these CMEs will be compared with white light synoptic maps and daily coronagraphic images to determine the relationship of CMEs to preexisting coronal streamers. This project will enhance our understanding of the physics of solar activity, especially CMEs, of the structure and evolution of the corona, and or the propagation of large-scale disturbances through the heliosphere.