Other
Scientific paper
Jul 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000hst..prop.8715l&link_type=abstract
HST Proposal ID #8715
Other
Hst Proposal Id #8715 Star Formation
Scientific paper
Ground-based images recently lead to the discovery of a young globular cluster in the nearby spiral galaxy NGC 6946. With an absolute visual magnitude of -13, this object can be compared to the young globular clusters discovered by the HST in large numbers in recent merger galaxies like e.g. the Antennae. However, NGC 6946 is more than a factor of 3 closer than even the most nearby young merger galaxy, so observations of the young globular here could offer much more detailed information about the structure and environment of such an object. The young globular is located within a bubble-like structure with a radius of about 300 pc, in which dozens of other young clusters are seen on ground-based images. We have shown in a recent paper that the young globular could have formed by coalescence of many smaller clusters. Considering the youth of this region {15 Myr}, and its relatively small distance, HST images are expected to provide detailed information about the formation and early evolution of globular clusters. This has important implications for understanding the physical conditions in the early Universe when most globular clusters and their host galaxies formed.
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