Comparison of different spectral population models
Abstract
We have compared simple stellar populations (SSPs) generated with different population synthesis tools: BC03, Vazdekis and Pegase.HR and different stellar libraries: ELODIE3.1, SteLib and MILES. We find that BC03/SteLib SSPs are biased toward solar metallicity, however Pegase.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 (like temperature scale of the giants).
Keywords
Cite
@article{arxiv.astro-ph/0703127,
title = {Comparison of different spectral population models},
author = {Mina Koleva and Philippe Prugniel and Pierre Ocvirk and Damien Le Borgne and Igor Chilingarian and Caroline Soubiran},
journal= {arXiv preprint arXiv:astro-ph/0703127},
year = {2009}
}
Comments
2 pages; proceedings of IAU Symposium No. 241, "Stellar Populations as Building Blocks of Galaxies", editors A. Vazdekis and R. Peletier