期刊论文详细信息
Galaxies | |
How Clumpy Star Formation Affects Globular Cluster Systems | |
Jeremy Bailin1  | |
[1] Department of Physics and Astronomy, University of Alabama, Box 870324, Tuscaloosa, AL 35487-0324, USA; | |
关键词: globular clusters; star formation; abundances; stellar halos; | |
DOI : 10.3390/galaxies5030036 | |
来源: DOAJ |
【 摘 要 】
There is now clear evidence the metallicities of globular clusters are not simple tracers of the elemental abundances in their protocluster clouds; some of the heavy elements were formed subsequently within the cluster itself. It is also manifestly clear that star formation is a clumpy process. We present a brief overview of a theoretical model for how self-enrichment by supernova ejecta proceeds in a protocluster undergoing clumpy star formation, and show that it predicts internal abundance spreads in surprisingly good agreement with those in observed Milky Way clusters.
【 授权许可】
Unknown