Behaviour of O I triplet lambda 7773. I. Normal stars.
Abstract
Reticon spectra of the O I triplet at 7772 - 7775 Å are analyzed in 67 non-peculiar B to F stars. The dependence of the equivalent width of the triplet on luminosity, but also on other atmospheric parameters is examined; predicted intensities are compared with the observed ones and the effects of microturbulence and NLTE are discussed.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- August 1988
- Bibcode:
- 1988A&A...201..259F
- Keywords:
-
- Atomic Energy Levels;
- Early Stars;
- Oxygen Spectra;
- Spectral Line Width;
- Stellar Atmospheres;
- B Stars;
- F Stars;
- Nonequilibrium Thermodynamics;
- Stellar Luminosity;
- Astrophysics