The purpose of this work is to make available new gas-phase oxygen abundance measurements for a serendipitous sample of 27 galaxies with redshift 0.35<z<0.52. We measured the equivalent widths of the [O II]{\lambda}3727, H{\beta}, and [O III]{\lambda}{\lambda}4959, 5007 emission lines observed in the galaxy spectra obtained with the Visible Multi-Object Spectrograph mounted at the Very Large Telescope. For each galaxy, we derived the metallicity-sensitive emission lines ratio R23, ionization-sensitive emission lines ratio O32, and gas-phase oxygen abundance 12+log(O/H). The values of gas-phase oxygen abundance 12+log(O/H) we obtained for the sample galaxies are consistent with previous findings for galaxies at intermediate redshift.
@article{arxiv.1206.6300,
title = {Gas-phase metallicity of 27 galaxies at intermediate redshift},
author = {L. Morelli and V. Calvi and A. Cardullo and A. Pizzella and E. M. Corsini and E. Dalla Bontà},
journal= {arXiv preprint arXiv:1206.6300},
year = {2015}
}
Comments
5 pages, 3 postscript figures and 3 tables. A&A in press