Theoretical modelling of inhomogeneous fields in the chromosphere.
Abstract
Theoretical models of the magnetic field structure above a photosphere with magnetic flux tubes are constructed, on the hypotheses that the field is either current-free or is governed by the force-free equation j = αB, with α constant. The level where the magnetic pressure becomes equal to the ambient gas pressure is calculated, and is shown to depend very little on which of the above hypotheses is adopted. The resulting levels are in agreement with the "canopy heights" given by Giovanelli (1980) and Giovanelli and Jones (1982) for areas around active regions, but are higher than the results for the quiet, unipolar regions in Giovanelli and Jones (1983). The calculations suggest there are large regions of the low to middle quiet chromosphere that require non-magnetic heating mechanisms.
- Publication:
-
Chromospheric Diagnostics and Modelling
- Pub Date:
- 1985
- Bibcode:
- 1985cdm..proc..199A
- Keywords:
-
- Chromosphere;
- Magnetic Field Configurations;
- Magnetic Flux;
- Solar Magnetic Field;
- Atmospheric Heating;
- Gas Pressure;
- Solar Physics;
- Magnetic Fields:Solar Chromosphere;
- Solar Chromosphere:Magnetic Fields