On the metallicity distribution in the nuclei of elliptical galaxies
On the metallicity distribution in the nuclei of elliptical galaxies
Using current models of spectrophotometric properties of single age, single metallicity and stellar populations (SSPs) I have computed the Mg2, Hβ, Fe52 and Fe53 line strengths for stellar populations with a metallicity spread. The comparison of these models with the nuclear indices of early-type galaxies yields the following major conclusions. …