Two-dimensional solar model atmospheres: influence of lateral boundary conditions.
Abstract
The authors study two kinds of lateral boundary conditions in the context of a two-dimensional numerical modeling of solar granulation. The models with periodic conditions on lateral boundaries are found to differ from the similar models with reflecting sides in that the large-scale inhomogeneous structures are more important in them and the amplitude of vertical oscillations near and above the traditional temperature minimum region is larger. Parameters of the principal mode of model oscillations turn out to be independent of the kind of lateral boundaries. Test calculations for 14 Fe I lines and 12 Fe II lines reveal that the iron abundance determined to fit the equivalent widths of the lines found from observations is also insensitive to changes in lateral boundary conditions.
- Publication:
-
Kinematics and Physics of Celestial Bodies
- Pub Date:
- 1998
- Bibcode:
- 1998KPCB...14..187G
- Keywords:
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- Solar Atmosphere: Iron Lines;
- Solar Atmosphere: Models;
- Solar Atmosphere: Solar Granulation