The ISM metallicity and the stellar mass are examined in a sample of 66 galaxies at 0.4<z<1, selected from the Gemini Deep Deep Survey (GDDS) and the Canada-France Redshift Survey (CFRS). We observe a mass-metallicity relation similar to that seen in z~0.1 SDSS galaxies, but displaced towards higher masses and/or lower metallicities. Using this sample, and a small sample of z~2.3 LBGs, a redshift dependent mass-metallicity relation is proposed which describes the observed results.
@article{arxiv.astro-ph/0412041,
title = {The mass-metallicity relation at z~0.7},
author = {S. Savaglio and K. Glazebrook and D. Le Borgne and S. Juneau and R. Abraham and D. Crampton and P. McCarthy and H. -W. Chen and R. Marzke and R. Carlberg and I. Jorgensen and I. Hook and R. Murowinski},
journal= {arXiv preprint arXiv:astro-ph/0412041},
year = {2009}
}
Comments
To appear in the proceedings of the conference "The Spectral Energy Distribution of Gas-Rich Galaxies", eds. C.C. Popescu & R.J. Tuffs (Heidelberg, October 2004)