首页 | 本学科首页   官方微博 | 高级检索  
     


A study of a long duration B9 flare-CME event and associated shock
Authors:R. Chandra  P.F. Chen  A. Fulara  A.K. Srivastava  W. Uddin
Affiliation:1. Department of Physics, DSB Campus, Kumaun University, Nainital 263 001, India;2. School of Astronomy & Space Science, Nanjing University, Nanjing 210023, China;3. Department of Physics, Indian Institute of Technology (BHU), Varanasi 221 005, India;4. Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital 263 001, India
Abstract:We present and discuss here the observations of a small long duration GOES B-class flare associated with a quiescent filament eruption, a global EUV wave and a CME on 2011 May 11. The event was well observed by the Solar Dynamics Observatory (SDO), GONG Hα, STEREO and Culgoora spectrograph. As the filament erupted, ahead of the filament we observed the propagation of EIT wave fronts, as well as two flare ribbons on both sides of the polarity inversion line (PIL) on the solar surface. The observations show the co-existence of two types of EUV waves, i.e., a fast and a slow one. A type II radio burst with up to the third harmonic component was also associated with this event. The evolution of photospheric magnetic field showed flux emergence and cancellation at the filament site before its eruption.
Keywords:EUV waves  Filaments  Magnetic field  Magnetic reconnection  Coronal mass ejections (CMEs)
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号