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| Paper: |
Magnetic Flux Density in 3D MHD Simulations and Observations |
| Volume: |
526, Solar Polarization Workshop 8 |
| Page: |
191 |
| Authors: |
Beck, C.; Fabbian, D.; Rezaei, R.; Puschmann, K. G. |
| Abstract: |
We compare the polarization signals induced in three-dimensional (3D)
magneto-hydrodynamical (MHD) simulations by the Zeeman effect in the
presence of photospheric magnetic fields to those in observations at disc
centre.
We consider quantities determined from Stokes vector profiles of
observations of photospheric spectral lines in the visible and
near-infrared, and in corresponding synthetic spectra obtained from
numerical 3D MHD simulations with an average magnetic flux density of
20–200 G.
We match the spatial resolution of observations by degrading the spectra
of the simulations.
We find that the total unsigned vertical magnetic flux density in the
simulation should be less than 50 G to reproduce the observed
polarization signals in the quiet Sun internetwork.
A value of ∼30 G best agrees with all observations we employed. |
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