The emission line survey within the Calar Alto Deep Imaging Survey (CADIS) detects galaxies with very low continuum brightness by using an imaging Fabry-Perot interferometer. With spectroscopic follow-up observations of CADIS galaxies using FORS2 at the VLT and DOLORES at TNG we obtained oxygen abundances of 5 galaxies at and 10 galaxies at . Combining these measurements with published oxygen abundances of galaxies with we find evidence that a metallicity-luminosity relation exists at medium redshift, but it is displaced to lower abundances and higher luminosities compared to the metallicity-luminosity relation in the local universe. Comparing the observed metallicities and luminosities of galaxies at with Pégase2 chemical evolution models we have found a favoured scenario in which the metallicity of galaxies increases by a factor of ~2 between and today, and their luminosity decreases by ~ mag.
No takes yet. Share an insight, caveat, or question.
A 2004 study studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: