Comparison of different spectral population models
Abstract
We have compared simple stellar populations (SSPs) generated with different population synthesis tools: BC03, Vazdekis and Pégase.HR and different stellar libraries: ELODIE3.1, SteLib and MILES. We find that BC03/SteLib SSPs are biased toward solar metallicity, however Pégase.HR/ELODIE3.1 and Vazdekis/MILES are extremely consistent. The extensive coverage of the space of atmospheric parameters in the large stellar libraries allows precise synthesis for a large range of ages (0.1 .. 10 Gyr) and metallicities (−2 .. +0.4 dex) limited by the quality of the determination of stellar parameters (temperature scale of the giants).
- Publication:
-
Stellar Populations as Building Blocks of Galaxies
- Pub Date:
- August 2007
- DOI:
- 10.1017/S174392130700779X
- arXiv:
- arXiv:astro-ph/0703127
- Bibcode:
- 2007IAUS..241..183K
- Keywords:
-
- galaxies: stellar content;
- galaxies: evolution;
- techniques: spectroscopic;
- Astrophysics
- E-Print:
- 2 pages