首页|The Evolution of Photospheric Current Density During an X9.3-Class Solar Flare
The Evolution of Photospheric Current Density During an X9.3-Class Solar Flare
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This paper deduced the temporal evolution of the magnetic field through a series of high-resolution vector magnetograms and calculated the fine distribution map of current density during an X9.3-class flare eruptions using Ampère's law.The results show that a pair of conjugate current ribbons exist on both sides of the magnetic neutral line in this active region,and these conjugate current ribbons persist before,during,and after the flare.It was observed that the X9.3-class flare brightened in the form of a bright core and evolved into a double-ribbon flare over time.Importantly,the position of the double-ribbon flare matches the position of the current ribbons with high accuracy,and their morphologies are very similar.By investigating the complexity of current density and flare morphology,we discovered a potential connection between the eruption of major flares and the characteristics of current density.
Department of Physics,Yunnan Normal University,Kunming 650500,China
State Key Laboratory of Space Weather,Chinese Academy of Sciences,Beijing 100190,China
College of Physics and Electronic Engineering,Sichuan Normal University,Chengdu 610068,China
School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610068,China
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Natural Natural Science Foundation of China(NSFC)Sichuan Science and Technology ProgramJoint Funds of the National Natural Science Foundation of China(NSFC)Specialized Research Fund for State Key Laboratories
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