Standard model atmospheres for A-type stars and non-LTE effects
Abstract
Analyzing the long-term evolution of active regions (ARs) permits to quantify the link between their atmospheric emission (from optical to X-rays) and the magnetic field. Multi-wavelength studies provide the full story, and not just a snapshot, of the phenomena and they allow us analyze how the atmosphere changes as the field strength decreases (with the dispersion of the AR).
- Publication:
-
The A-Star Puzzle
- Pub Date:
- December 2004
- DOI:
- 10.1017/S1743921304004326
- arXiv:
- arXiv:astro-ph/0411240
- Bibcode:
- 2004IAUS..224...13K
- Keywords:
-
- Astrophysics
- E-Print:
- to appear in The A Star Puzzle, IAU Symp. 224, J. Zverko, W. W. Weiss, J. Ziznovsky &