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Three Super Active Regions in the Descending Phase of Solar Cycle 23

Guo, Juan; Chen, Jie; Zhang, Yin +12 more

We analyze the magnetic configurations of three super active regions, NOAA 10484, 10486 and 10488, observed by the Huairou Multi-Channel Solar Telescope (MCST) from 2003 October 18 to November 4. Many energetic phenomena, such as flares (including a X-28 flare) and coronal mass ejections (CMEs), occurred during this period. We think that strong sh…