Journal
ASTRONOMICAL JOURNAL
Volume 127, Issue 1, Pages 368-372Publisher
IOP PUBLISHING LTD
DOI: 10.1086/380227
Keywords
galaxies : evolution; galaxies : star clusters; globular clusters : general
Categories
Ask authors/readers for more resources
Many globular cluster systems have a distinct bimodal metallicity distribution function (MDF), which has strikingly similar features in many large galaxies of all types. By using the Milky Way cluster system as a typical example, we show that bimodal MDFs can be very well matched with a double accreting-box'' chemical enrichment model in which both the halo (metal-poor) and bulge (metal-rich) clusters form during an early phase of gas inflow simultaneously with star formation. However, differences in effective yield between the two phases are not enough by themselves to reproduce the observed MDF shape: gas infall is required for both phases, and either the initial gas or the infalling gas must have very different metallicities in the two separate phases.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available