The Force-Free Electrodynamics Method for the Extrapolation of Coronal Magnetic Fields from Vector Magnetograms |
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| Authors: | I Contopoulos |
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| Institution: | 1. Research Center for Astronomy and Applied Mathematics (RCAAM), Academy of Athens, 4 Soranou Efessiou Str., Athens, 11527, Greece
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| Abstract: | We present a new improved version of our force-free electrodynamics (FFE) numerical code in spherical coordinates that extrapolates the magnetic field in the inner solar corona from a photospheric vector magnetogram. The code satisfies the photospheric boundary condition and the condition ??B=0 to machine accuracy. The performance of our method is evaluated with standard convergence parameters, and is found to be comparable to that of other nonlinear force-free extrapolations. |
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