case western reserve university



Cold Dark Matter, Small-Scale Power, and Halo Substructure: Clues from Globular Clusters

Patrick Cote (Rutgers, The State University of New Jersey)

Cold dark matter (CDM) models offer an attractive and popular theory for the formation of cosmological structure. However, it has become clear that the success of such models on large spatial scales does not extend down to the levels of galaxies. A particularly worrisome problem for CDM models is the apparent underabundance of dwarf galaxies at low-redshift: i.e., the so-called "missing satellite problem". In this talk, I will discuss how observations of globular clusters in nearby galaxies, including the Milky Way, may help us to explain this longstanding puzzle.