A possible explanation of the reduced temperature in coronal holes
Abstract
The dependence of the absorption coefficient on the coronal plasma density in the distance range r = 1.05-1.5 solar radius is established for various waves that heat the corona and the solar wind. The wave absorption coefficient depends more strongly on the density than does the coronal emission; it is this differential which causes the less dense coronal holes to appear cooler than quiet regions.
- Publication:
-
Pisma v Astronomicheskii Zhurnal
- Pub Date:
- April 1980
- Bibcode:
- 1980PAZh....6..246K
- Keywords:
-
- Coronal Holes;
- Plasma Density;
- Solar Temperature;
- Solar Wind;
- Absorptivity;
- Electron Density (Concentration);
- Energy Absorption;
- Flow Geometry;
- Flux Density;
- Magnetohydrodynamic Flow;
- Solar Wind Velocity;
- Solar Physics