| |
 |
| Paper: |
Intrinsically Polarized Blend Lines |
| Volume: |
489, Solar Polarization 7 |
| Page: |
125 |
| Authors: |
Sowmya, K.; Nagendra, K. N.; Sampoorna, M. |
| Abstract: |
The Second Solar Spectrum formed by coherent scattering
processes in the Sun, is highly structured. It is
characterized by numerous blend lines,
both intrinsically polarizing and depolarizing, superposed on
the background continuum. These blend lines play an important role
in the interpretation of the Second Solar
Spectrum. Since blend lines affect the shapes of the
neighboring spectral lines they have to be
treated in a sophisticated manner in order to efficiently model a given spectral
line of interest. The depolarizing blend lines – mostly considered to be formed
under LTE conditions – depolarize the
background continuum and thereby affect the absolute scale of
the polarization measurement. An understanding of the influence
of the blend lines leads to a proper determination of the
zero-point of the polarization scale. With this motivation
we extend a previously developed framework to include many blend lines formed under
NLTE conditions, in the radiative transfer equation. The results are shown for the
particular case of two blend lines situated on either side of the main spectral line. |
|
|
|
|
|
