报告人：英国Armagh天文台Maria Madjarska研究员

报告时间：7月23日（周六）上午8:50

报告地点：南楼211

报告题目：The importance of multi-instrument observations: A coronal wave and an asymmetric eruptive filament in SUMER, CDS, EIT and TRACE co-observations

摘要：The investigation covers the complex subject of coronal waves and the phenomena contributing to and/or causing their formation. The objectives of the study is to provide a better physical understanding of the complex inter-relation and evolution of several solar coronal features comprising a double-peak flare, a coronal dimming caused by a coronal mass ejection (CME), a CME-driven compression, and a fast-mode wave. For the first time, the evolution of an asymmetric eruptive filament is analysed in simultaneous Solar Ultraviolet Measurement of Emitted Radiation (SUMER) spectroscopic and Transition Region and Coronal Explorer (TRACE) and Extreme-ultraviolet Imaging Telescope (EIT) imaging data. We use imaging observations from EIT and TRACE in the 195 Å channel and spectroscopic observations from the Coronal Diagnostic Spectrometer (CDS) in a rastering and SUMER in a sit-and-stare observing mode. The SUMER spectra cover spectral lines with formation temperatures from logT(K)∼4.0 to 6.1. Although the event was already analysed in two previous studies, our analysis brings a wealth of new information on the dynamics and physical properties of the observed phenomena thanks to the use of multi-instrument imaging and spectral data.