Low resolution three dimensional reconstruction of CMEs using solar mass ejection imager (SMEI) data
Low resolution three dimensional reconstruction of CMEs using solar mass ejection imager (SMEI) data
复制标题
使用太阳质量抛射成像仪 (SMEI) 数据对日冕物质抛射进行低分辨率三维重建
DOI：
10.1117/12.616329
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
Cindy Wang
中科院分区：
文献类型：
--
作者：
B. Jackson;A. Buffington;P. Hick;Cindy Wang
来自太阳质量抛射成像仪（SMEI）的白光汤姆森散射观测记录了许多日冕物质抛射的内部日球层响应。这里我们详细介绍了如何在SMEI观测中确定几次CME事件的范围（包括2003年5月28日和10月28日的观测）。我们展示了我们如何能够从距离太阳盘20°的第一次观测中测量这些事件，直到它们在SMEI 180°的视野中消失。我们采用了3D重建技术，提供了从地球观测到的向外流动的太阳风的视角。这是通过将运动太阳风密度模型的参数迭代拟合到SMEI白光观测和太阳-地球环境实验室（STELab）的行星际闪烁（IPS）速度数据来完成的。这种三维建模技术能够从背景噪声中分离出SMEI的真实日球层响应，并以时间为函数重建三维日球层结构。这些重建可以将10月28日的日冕物质抛射从附近的日球层结构中分离出来，并确定其质量。与LASCO对单个日冕物质抛射或部分日冕物质抛射进行比较，可以详细了解日冕物质抛射向外传播过程中形状和质量的变化。
White-light Thomson scattering observations from the Solar Mass Ejection Imager (SMEI) have recorded the inner heliospheric response to many CMEs. Here we detail how we determine the extent of several CME events in SMEI observations (including those of 28 May 28 and 28 October, 2003). We show how we are able to measure these events from their first observations as close as 20° from the solar disk until they fade away in the SMEI 180° field of view. We employ a 3D reconstruction technique that provides perspective views from outward-flowing solar wind as observed at Earth. This is accomplished by iteratively fitting the parameters of a kinematic solar wind density model to the SMEI white light observations and to Solar-Terrestrial Environment Laboratory (STELab), interplanetary scintillation (IPS) velocity data. This 3D modeling technique enables separating the true heliospheric response in SMEI from background noise, and reconstructing the 3D heliospheric structure as a function of time. These reconstructions allow both separation of the 28 October CME from other nearby heliospheric structure and a determination of its mass. Comparisons with LASCO for individual CMEs or portions of them allow a detailed view of changes to the CME shape and mass as they propagate outward.
使用行星际闪烁 (IPS) 遥感观测对日光层特征进行时变断层扫描
DOI：
--
发表时间：
2003
期刊：
Solar Wind Ten, AIP Conference Proceedings, AIP, New York, 1995(edited by M. Velli, R. Bruno and F. Malara 679
影响因子：
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作者：
Jackson;B.V. etal.
通讯作者：
B.V. etal.