Coronal Component of Solar Active Regions

9311834施梅尔茨将利用太阳最大飞行任务卫星先前获得的软X射线谱线数据，研究太阳日冕高度电离等离子体的物理性质。软X射线线提供了冗余，以理清各种观测和理论效应，并测试关于太阳活动区日冕成分特性的当前想法。目前的分析方法假设观测到的等离子体是光学薄的，元素丰度值是恒定的，那么发射线的理论行为是众所周知的温度函数，并且等离子体是等温的。为本次调查开发的分析方法不需要这些限制。几名本科生将参与这些项目，以帮助进行数据分析并展示结果。***

9311834 Schmelz The physical properties of the highly ionized plasma of the solar corona will be investigated using soft X-ray spectral line data previously acquired by the Solar Maximum Mission satellite. The soft X-ray lines provides the redundancy to untangle various observational and theoretical effects, and to test current ideas about the properties of the coronal component of solar active regions. Current analysis methods assume that the observed plasma is optically thin, that the elemental abundance values are constant, than the theoretical behavior of the emissions lines is a well known function of temperature, and that the plasma is isothermal. The analysis methods developed for this investigation do not require these restrictions. Several undergraduate students will be involved in the projects to assist with the data analysis and present the results. ***