Age and metallicity of Galactic clusters from full spectrum fitting

Details Age and metallicity of Galactic clusters from full spectrum fitting Age and metallicity of Galactic clusters from full spectrum fitting

2007-02-05

arxiv.org/abs/astro-ph/0702116v1

Astronomy and Astrophysics

Astrophysics

2 pages; proceedings of IAU Symposium No. 241, "Stellar Populations as Building Blocks of Galaxies", editors A. Vazdekis and R

Scientific paper

10.1017/S1743921307007806

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.

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