1. Andreas Lagg

4. LineWL [Å]Landé- factor Δλ Zeeman @ 2kG [mÅ] Δ to IMaX-line [mÅ] [km/s] FWHM [mÅ] Fe I5249.10500.91723.6110363.094 Ca I5249.41101.50038.679745.594 Cr II5249.43701.60041.277144.094 Ti I5249.56800.75019.364036.687 Nd II5249.5760??63236.187 Fe I5249.68201.20831.152630.1? Co I5250.00000.78620.220811.9121 Fe I5250.20803.00077.20082 Fe I5250.64501.50038.6437-25.0116 Nd II5250.8040??604-34.5? Ti I5250.93001.00025.7722-41.365

5. FTS FTS * 85mA Gauss

7. FTS * 85mA Gauss, 6 km/s upflow

8.  8 free parameters: B-strength, -azimuth, -inclination LOS-velocity Doppler-broadening Damping parameter source function gradient source function at τ =0  85 mÅ FWHM Gaussian convolution  IMaX filter Inversion Codes: VFISV (Borrero), HeLiX+ (Lagg), … Test Data Set: 2009-06-09, 163-208  8 free parameters: B-strength, -azimuth, -inclination LOS-velocity Doppler-broadening Damping parameter source function gradient source function at τ =0  85 mÅ FWHM Gaussian convolution  IMaX filter Inversion Codes: VFISV (Borrero), HeLiX+ (Lagg), … Test Data Set: 2009-06-09, 163-208

15. weight 1 additional free parameter (FF)

16. 2009-06-09, 163-208

21. high B (1.5 kG) B vert. (11°) high FF (0.75)

22. 2009-06-09, 163-208 low B (110 G) B horiz (93°) high FF (0.75)

23. 2009-06-09, 163-208

25.  8 free parameters: 1.B-strength 2.B-azimuth 3.B-inclination 4.LOS-velocity 5.Doppler-broad. 6.Damping parameter 7.source func grad 8.source func at τ =0  fast & simple  8 free parameters: 1.B-strength 2.B-azimuth 3.B-inclination 4.LOS-velocity 5.Doppler-broad. 6.Damping parameter 7.source func grad 8.source func at τ =0  fast & simple  7 free parameters: 1.B-strength 2.B-azimuth 3.B-inclination 4.LOS-velocity 5.Micro-Turbulence 6.Macro-Turbulence 7.Temperature at τ =0  ‚physical‘ param.  multi-line  complex atmosphere eg. gradients  slow  7 free parameters: 1.B-strength 2.B-azimuth 3.B-inclination 4.LOS-velocity 5.Micro-Turbulence 6.Macro-Turbulence 7.Temperature at τ =0  ‚physical‘ param.  multi-line  complex atmosphere eg. gradients  slow

26. can easily handle ±6km/s

29.  Good agreement: VFISV ↔ HeLIx + ↔ SPINOR magnetograph formula?  Local Straylight correction is feasible  Numerical RTE Solver (SPINOR) promising  Good agreement: VFISV ↔ HeLIx + ↔ SPINOR magnetograph formula?  Local Straylight correction is feasible  Numerical RTE Solver (SPINOR) promising  Determine correct parameters for local straylight correction (limb data)  implement local-straylight to SPINOR  compare VFISV ↔ SPINOR maps  high LOS velocities: test line blending  strong field regions: test V LOS, B-gradient  Determine correct parameters for local straylight correction (limb data)  implement local-straylight to SPINOR  compare VFISV ↔ SPINOR maps  high LOS velocities: test line blending  strong field regions: test V LOS, B-gradient