Stellar variability and individuality - Observations and implications
Abstract
Attention is given to the implications of the observed nonthermal mass fluxes on the modeling of stellar structure and evolution. Current problems concerning observations of variability in spectrum and luminosity are related to the question whether the variability is sufficiently large to require fundamental changes regarding the modeling of stellar atmospheres. Aspects of variability are evaluated, taking into account Be stars and B supergiants. Quentions regarding an apparent 'individuality' in appearance among stars of the same taxonomic class are also investigated. It is concluded that no serious consideration can be given to models and computations for mass loss and its evolutionary effects, which are expressed wholly in terms of thermal parameters.
- Publication:
-
IAU Colloq. 59: Effects of Mass Loss on Stellar Evolution
- Pub Date:
- 1981
- DOI:
- 10.1007/978-94-009-8500-1_23
- Bibcode:
- 1981ASSL...89..131C
- Keywords:
-
- Mass Transfer;
- Stellar Evolution;
- Stellar Spectra;
- Stellar Structure;
- Variable Stars;
- B Stars;
- H Alpha Line;
- Resonance;
- Supergiant Stars;
- X Ray Astronomy;
- Astrophysics