Image Details
Caption: Figure 7.
Normalized wavelength-integrated linear polarisation (LP) response functions to magnetic azimuth for selected spectropolarimetric diagnostics. For each line, the Stokes Q and U response functions were combined and integrated over wavelength before normalization. The Fe I 8468 Å line exhibits substantial sensitivity to upper-photospheric layers, extending to optical depths significantly higher than K I D1 and D2.
© 2026. The Author(s). Published by the American Astronomical Society.