This is an overview of non-equilibrium aspects of the formation of solar continua and lines affecting the contributions by magnetic network and plage to spectrally resolved solar irradiance. After a brief summary of these contributions and a compact refresher of solar spectrum formation, the emphasis is on graphical exposition. Major obstacles for simulation-based irradiance studies are how to cope with NLTE scattering in the violet and ultraviolet line haze and how to cope with retarded hydrogen opacities in infrared and mm radiation.
- Pub Date:
- November 2019
- Solar irradiance;
- Astrophysics - Solar and Stellar Astrophysics
- Editor's Choice lead article of Solar Physics Topical Selection "Irradiance Variations of the Sun and Sun-like Stars". The arXiv pdf is better for e-reading because the publisher destroyed citation links and refused repair