We present a comparison of high-resolution, integrated-light, detailed chemical abundances for Galactic and extragalactic globular clusters in both massive galaxies and dwarf galaxies. We include measurements of Fe, Ca, Si, Na, and Al for globular cluster samples in the Milky Way, M31, Large Magellanic Cloud, and NGC 5128. These and other recent results from our group on M31 and NGC 5128 are the first chemical abundances derived from discrete absorption features in old stars beyond the Milky Way and its nearest neighbors. These abundances can provide both galaxy enrichment histories and constraints on globular cluster formation and evolution.
@article{arxiv.1302.6252,
title = {Extragalactic Globular Cluster Populations from High Resolution Integrated Light Spectra},
author = {J. E. Colucci and R. A. Bernstein and A. McWilliam and J. G. Cohen},
journal= {arXiv preprint arXiv:1302.6252},
year = {2013}
}
Comments
4 pages, to appear in conference proceedings of "Reading the book of globular clusters with the lens of stellar evolution", Rome, 26-28 November 2012