Interaction and eruption of two filaments observed by Hinode, SOHO, and STEREO  

作　　者：Ying Li Ming-De Ding 

机构地区：[1]School of Astronomy and Space Science,Nanjing University,Nanjing 210093,China [2]Key Laboratory for Modern Astronomy and Astrophysics(Nanjing University),Ministry of Education,Nanjing 210093,China

出　　处：《Research in Astronomy and Astrophysics》2012年第3期287-299,共13页天文和天体物理学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China (Grant Nos. 10878002 and 10933003);by the National Basic Research Program of China (973 program, Grant 2011CB811402)

摘　　要：We investigate the interaction between two filaments and the subsequent filament eruption event observed from different viewing angles by Hinode, the Solar and Heliospheric Observatory, and the Solar Terrestrial Relations Observatory. In the event, the two filaments rose high, interacted with each other, and finally were ejected along two different paths. We measure the bulk-flow velocity using spectroscopic data. We find significant outflows at the speed of a few hundreds of km s 1 during the filament eruption, and also some downflows at a few tens of km s-1 at the edge of the eruption region in the late stage of the eruption. The erupting material was composed of plasmas with a wide temperature range of 10-4–106 K. These results shed light on the filament nature and the coronal dynamics.We investigate the interaction between two filaments and the subsequent filament eruption event observed from different viewing angles by Hinode, the Solar and Heliospheric Observatory, and the Solar Terrestrial Relations Observatory. In the event, the two filaments rose high, interacted with each other, and finally were ejected along two different paths. We measure the bulk-flow velocity using spectroscopic data. We find significant outflows at the speed of a few hundreds of km s 1 during the filament eruption, and also some downflows at a few tens of km s-1 at the edge of the eruption region in the late stage of the eruption. The erupting material was composed of plasmas with a wide temperature range of 10-4–106 K. These results shed light on the filament nature and the coronal dynamics.

关 键 词：line： profiles—Sun： corona—Sun： filaments—Sun： flares—Sun： UV radiation 

分 类 号：P157.6[天文地球—天文学] TM923.04[电气工程—电力电子与电力传动]