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| Paper: |
Ca II K Scattering Polarization as Chromospheric Temperature and Magnetic Field Sensor |
| Volume: |
405, Solar Polarization 5: In Honor of Jan Olof Stenflo |
| Page: |
101 |
| Authors: |
Holzreuter, R. |
| Abstract: |
The linear scattering polarization of the Ca II K line is a very sensitive tool to determine the temperature profile in the high photosphere and low chromosphere. We present the spatial variation at several heliocentric angles and different wavelengths. Observations of a plage region show a surprising decrease of scattering polarization not expected from standard model calculations. Colder parts in the plage region could serve as a possible explanation. |
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