Towards an Understanding of the λ4000Å Break Behaviour in Old Stellar Populations
| ISSN: |
1572-946X
|
|---|---|
| Source: |
Springer Online Journal Archives 1860-2000
|
| Topics: |
Physics
|
| Notes: |
Abstract We present new empirical fitting functions describing the behaviour of the discontinuity at λ4000 Å in terms of the stellar atmospheric parameters: effective temperature, metallicity and surface gravity. These calibrations can be easily incorporated into stellar population models, providing, for the first time, accurate predictions of the break amplitud for, relatively old, composite systems.
|
| Type of Medium: |
Electronic Resource
|
| URL: |