The application of three-dimensional models of the solar photosphere for spectral analysis problems. Fe I and Fe II lines (solar disk centre).
Abstract
The LTE determination of iron abundance using 42 Fe I and 32 Fe II lines was carried out for two sequences of three-dimensional models: a cool one with the "gray" atmosphere and a hot one with the "non-gray" atmosphere. The results indicate that abundance of chemical elements may be estimated from line asymmetry and absolute wavelength shifts. However, specific structure of 3D-models leads to abundance differences between 3D-models and 1D-hydrostatic ones. The assumptions and limitations of 3D-models application for spectral analysis problems are discussed.
- Publication:
-
Kinematika i Fizika Nebesnykh Tel
- Pub Date:
- June 1994
- Bibcode:
- 1994KFNT...10...33G
- Keywords:
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- Solar Photosphere: Models;
- Solar Photosphere: Element Abundances;
- Solar Photosphere: Iron Lines