Ultraviolet Fe II emission from cool star chromospheres
Abstract
A review is given of the presence and excitation of ultraviolet Fe II emission lines from the chromopsheres of cool stars, including the sun. The requirements for further atomic data, particularly collision cross-sections, are stressed. Some unresolved issues of line identification and excitation mechanisms are discussed.
- Publication:
-
IAU Colloq. 94: Physics of Formation of FE II Lines Outside LTE
- Pub Date:
- 1988
- DOI:
- 10.1007/978-94-009-4023-9_26
- Bibcode:
- 1988ASSL..138..223J
- Keywords:
-
- Chromosphere;
- Cool Stars;
- Emission Spectra;
- Iron;
- Stellar Spectra;
- Ultraviolet Spectra;
- Giant Stars;
- Iue;
- Line Spectra;
- Lyman Alpha Radiation;
- Supergiant Stars;
- Astrophysics