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Non-force-free extrapolation of solar coronal magnetic field using vector magnetograms

Gary, G. A.; Hu, Qiang; Büchner, J. +2 more

We report our recent improvement in non-force-free extrapolation of coronal magnetic field, using vector magnetograms. Based on the principle of minimum (energy) dissipation rate (MDR), a generally non-force-free magnetic field solution is expressed as the superposition of one potential field and two (constant-[alpha]) linear force-free fields, wi…