Tag Archives: flare

79. Homologous Circular-Ribbon Flares Driven by Twisted Flux Emergence

Contributed by Zhi Xu. Posted on December 18, 2017

Two homologous circular-ribbon flares associated with two filament eruptions were observed and analyzed. The emergence of magnetic flux ropes helped to inject free energy into the region and drive the magnetic reconnection above it.

21. Three-ribbon Solar Flares: What Do They Imply for the 3D Magnetic Field Structure?

Contributed by Haimin Wang. Posted on June 27, 2014

Combining the outstanding capability of HMI/SDO  and NST/BBSO,  we studied two rarely observed three-ribbon flares. The flaring site is characterized with an intriguing &#8220fish-bone&#8221-like morphology. These results are discussed in favor of reconnection along the coronal null-line.