Age and metallicity of Galactic clusters from full spectrum fitting
Astrophysics
2009-11-13 v1
Abstract
We are using full spectrum fitting to determine the ages and metallicities of Galactic clusters (M67 and globular clusters). We find that the method is very accurate to measure the metallicity. Blue horizontal branches are well identified as a 'young' sub-component, and the age of the 'old' component is in fair agreement with CMD determinations.
Keywords
Cite
@article{arxiv.astro-ph/0702116,
title = {Age and metallicity of Galactic clusters from full spectrum fitting},
author = {Mina Koleva and Philippe Prugniel and Pierre Ocvirk and Damien Le Borgne},
journal= {arXiv preprint arXiv:astro-ph/0702116},
year = {2009}
}
Comments
2 pages; proceedings of IAU Symposium No. 241, "Stellar Populations as Building Blocks of Galaxies", editors A. Vazdekis and R. Peletier