Development of concepts on stellar atmospheres and envelopes.
Abstract
In the years before about 1940 the physical and mathematical bases were laid for the quantitative analysis of stellar atmospheres, but the years around 1940 saw a number of research results that greatly changed the face of astrophysics and were the starting-points for important further developments. The most important of these were: the discovery of the sub-nuclear energy source; that the solar and cosmic abundance ratio H/metals was about 10000; the identification of the coronal lines; the elaboration of MHD. The author describes some highlights of the periods before and around 1940, of the period around 1950, and presents a brief review of current problems in the study of stellar atmospheres.
- Publication:
-
Modeling the Stellar Environment: How and Why?
- Pub Date:
- 1989
- Bibcode:
- 1989mse..proc....3D
- Keywords:
-
- Stellar Atmospheres;
- Stellar Envelopes;
- Stellar Models;
- Abundance;
- Histories;
- Metallicity;
- Stellar Coronas;
- Stellar Evolution;
- Stellar Winds;
- Astrophysics;
- Stellar Atmospheres