Evolution of the magnetic fields of solar flare active regions from the geometry and topology of HMI/SDO magnetograms |
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Authors: | I S Knyazeva N G Makarenko |
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Institution: | 1. Central (Pulkovo) Astronomical Observatory, Russian Academy of Sciences, St. Petersburg, Russia
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Abstract: | The testing and development of topological approaches to the analysis of solar magnetic fields are considered. A technique based on the geometry of random fields, mathematical morphology and topology, and scale-space analyses are applied to describe and diagnose the pre-flare dynamics of the magnetic fields of solar active regions using HMI/SDO magnetograms. The results show that this formalism can be used to diagnose pre-flare dynamics over time intervals that are of practical interest. |
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