Coronal Streamer Belt Morphology

SOHO卫星调查的结果表明，太阳日冕流光带（从环绕太阳的带延伸到行星际空间）包裹着多个电流片，并且几乎连续流出多尺度瞬变，从小的“喷流”到大规模的日冕物质抛射。研究人员认为，这些观测结果强烈支持流光带的行星际观点，并为未来在这一水平上的空间天气预测提供了形态学基础。她分析了（1）太阳活动极小期的行星际数据，包括长时间的流光带浸没，使用热通量极性测试的磁拓扑;（2）来自流界面的行星际数据（一种日光层结构），传统上被视为稳态，用于瞬态特征和相互作用效应;以及（3）在太阳和日光层拓扑结构的背景下，引起主要磁暴和日冕物质抛射的磁拓扑结构的行星际特征。最后，她正在统计研究日冕物质抛射的首选太阳耀斑的日冕数据。总之，这项研究促进了对日冕流光带结构、它们与高速气流的相互作用以及它们对地球的影响的理解。

Results from SOHO satellite investigations indicate the solar corona streamer belt (extending from a band circling the sun into interplanetary space) envelop multiple current sheets, and have nearly continuous outflow of multiscale transients, ranging from small 'puffs' to large-scale coronal mass ejections. The investigator feels these observations strongly support the interplanetary view of the streamer belt, and is providing a morphological basis for future space weather prediction at this level. She analyzes (1) interplanetary data from the solar minimum, covering extended periods of streamer belt immersion, for magnetic topology using the heat flux polarity test; (2) interplanetary data from the stream interface (a heliospheric structure), traditionally treated as steady-state, for transient signatures and interaction effects; and (3) interplanetary signatures of structures causing major geomagnetic storms and coronal mass ejections for magnetic topology in the context of solar and heliospheric topology. Finally, she is statistically studying coronagraph data for preferred solar longitudes of coronal mass ejections. In all, the research advances understanding of coronal streamer belt structures, their interaction with high-speed flows, and their impact on Earth.