This review presents the results of ongoing studies of the formation histories of metal-poor and metal-rich globular clusters and their host galaxies. I first discuss the strong observational evidence that the globular cluster systems of most elliptical galaxies have bimodal metallicity distributions. I then focus on new results for metal-poor and metal-rich globular cluster systems. Metal-poor globular clusters are often associated with early structure formation, and I review new constraints on their formation epoch based on the "bias" of the number of metal-poor clusters with host galaxy mass. For metal-rich globular clusters, I discuss new results from ongoing optical to near-infrared photometric studies which both confirm an intermediate-age population in NGC 4365 and generally reveal a variety of formation histories for now quiescent ellipticals. © 2009 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Zepf, S. E. (2009). The formation histories of metal-rich and metal-poor globular clusters. In ESO Astrophysics Symposia (Vol. 2009, pp. 339–346). https://doi.org/10.1007/978-3-540-76961-3_79
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