Abstract
The behaviour of the 4000 Angstrom break index and of the equivalent width of the main Balmer lines is investigated a) for a single star as a function of effective temperature, gravity and metallicity and b) for a single stellar population as a function of age and metallicity. Consequences for the interpretation of integrated spectra are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 1025-1030 |
| Number of pages | 6 |
| Journal | Astronomy & Astrophysics |
| Volume | 325 |
| Issue number | 3 |
| Publication status | Published - Sept-1997 |
Keywords
- galaxies, stellar content
- stars, general
- galaxies, star clusters
- galaxies, evolution
- EARLY-TYPE SYSTEMS
- GLOBULAR-CLUSTERS
- ELLIPTIC GALAXIES
- SPECTRAL EVOLUTION
- POPULATION
- INDEXES
- OLD