Jean Brodie
Lick Observatory

Keck and HST Observations of Extragalactic Globular 
Clusters - Implications for Galaxy Formation

The merger model of elliptical galaxy formation has received increasing
attention since its inception some 25 years ago. The formation of globular
clusters during the merger process has been widely discussed. It is clear
that the characteristics of globular cluster systems and their parent
galaxies are sufficiently closely coupled that understanding the formation
mechanisms of globular clusters will shed light on the processess that
formed galaxies. Recent HST and ground-based imaging studies have revealed
problems with the standard merger picture for globular cluster formation
leading us to suggest an alternative formation scenario that better fits
the data.  Keck spectroscopy is proving invaluable in testing these
ideas. Two relevant case studies will be discussed, both of which utilize
Keck spectroscopy and HST imaging: The globular cluster system in NGC 1399,
the central cD in the Fornax cluster, and the proto-globular cluster
candidates in NGC 1275.