Scaling-Law Equilibria for Calcium in Canopy-Type Models of the Solar Chromosphere
Abstract
Scaling laws for resonance line formation are used to obtain approximate excitation and ionization equilibria for a three-level model of singly ionized calcium. The method has been developed for and is applied to the study of magnetograph response in the 8542 Å infrared triplet line to magnetostatic canopies which schematically model diffuse, nearly horizontal fields in the low solar chromosphere. For this application, the method is shown to be efficient and semi-quantitative, and the results indicate the type and range of effects on calcium-line radiation which result from reduced gas pressure inside the magnetic regions.
- Publication:
-
Solar Physics
- Pub Date:
- August 1982
- DOI:
- 10.1007/BF00146245
- Bibcode:
- 1982SoPh...79..279J
- Keywords:
-
- Calcium;
- Chromosphere;
- Scaling Laws;
- Solar Atmosphere;
- Stellar Models;
- Equilibrium Equations;
- Ionization;
- Nonlinear Equations;
- Pressure Reduction;
- Solar Physics;
- Radiation;
- Calcium;
- Resonance Line;
- Line Formation;
- Ionization Equilibrium