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| Paper: |
Reconstruction of 3D Coronal Magnetic Structures from THEMIS/MTR and Hinode/SOT Vector Maps |
| Volume: |
454, The 3rd Hinode Science Meeting |
| Page: |
363 |
| Authors: |
Schmieder, B.; Guo, Y.; Aulanier, G.; Démoulin, P.; Török, T.; Bommier, V.; Wiegelmann, T.; Gosain, S. |
| Abstract: |
Coordinated campaigns using THEMIS, Hinode, and other instruments
have allowed us to study the magnetic fields of faculae, filaments,
and active regions. In a first case, we modelled the 3D magnetic
field in a flaring active region with a nonlinear force-free field
extrapolation, using magnetic vectors observed by THEMIS/MTR as
boundary condition. In order to construct a consistent bottom
boundary for the model, we first removed the 180 degree ambiguity of
the transverse fields and minimized the force and torque in the
observed vector fields. We found a twisted magnetic flux rope, well
aligned with the polarity inversion line and a part of an Hα
filament, and located where a large flare is initiated about two
hours later. In a second case, Hinode/SOT allowed us to detect fine
flux concentrations in faculae, while MTR provided us with magnetic
information at different levels in the atmosphere. The polarimetry
analysis of the MTR and SOT data gave consistent results, using both
UNNOFIT and MELANIE inversion codes. |
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