S R ] 9 S ep 2 01 6 Investigating Energetic X-Shaped Flares on the Outskirts of A Solar Active Region

CAS Key Laboratory of Geospace Environment, Department of G eophysics and Planetary Sciences, University of Science and Technology of China, Hefei 230026, China Collaborative Innovation Center of Astronautical Science and Technology, Hefei 230026, China Synergetic Innovation Center of Quantum Information & Quan t m Physics, University of Science and Technology of China, Hefei 230026, China Mengcheng National Geophysical Observatory, School of Ear th and Space Sciences, University of Science and Technology of China, Hefei 230026, China