Energy Balance in the Solar Transition Region. II. Effects of Pressure and Energy Input on Hydrostatic Models
Abstract
The radiation of energy by hydrogen lines and continua in hydrostatic energy-balance models of the transition region between the solar chromosphere and corona is studied using models which assume that mechanical or magnetic energy is dissipated in the hot corona and is then transported toward the chromosphere down the steep temperature gradient of the transition region. These models explain the average quiet sun and also the entire range of variability of the Ly-alpha lines. The relations between the downward energy flux, the pressure of the transition region, and the different hydrogen emission are described.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- August 1991
- DOI:
- 10.1086/170399
- Bibcode:
- 1991ApJ...377..712F
- Keywords:
-
- Chromosphere;
- Line Spectra;
- Radiative Transfer;
- Solar Atmosphere;
- Solar Corona;
- Solar Spectra;
- Boundary Conditions;
- H Lines;
- Hydrostatics;
- Stellar Models;
- Solar Physics;
- DIFFUSION;
- LINE FORMATION;
- RADIATIVE TRANSFER;
- SUN: ATMOSPHERE;
- SUN: TRANSITION REGION