Revealing the Hidden Stellar Content of the Quintuplet Cluster

Details Revealing the Hidden Stellar Content of the Quintuplet Cluster Revealing the Hidden Stellar Content of the Quintuplet Cluster

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003noao.prop...62l&link_type=abstract

NOAO Proposal ID #2003A-0062

Physics

Scientific paper

The Quintuplet cluster is one of the most extraordinary sites of star formation in the Galaxy, harboring over 100 massive and evolved stars at ~30 pc from the Galactic center (GC). Radio observations have also revealed several compact sources in this cluser which we believe are detections of ultra-compact HII regions (UCHIIs). As UCHIIs are also strong radiators in the mid-IR, we propose to image the Quintuplet cluster in two mid-IR bands in order to confirm the nature of these sources. Detections of UCHIIs in the Quintuplet cluster have important implications for understanding (1) the environment, (2) the timescales, and (3) the mechanism of star formation in this physically extreme region of the Galaxy. In addition, the combination of radio and mid-IR data can provide powerful constraints on the total stellar content of the GC clusters. Ultimately, understanding the details of star formation in such GC clusters offers crucial insight into the nature of similarly massive clusters in nearby starbursting galaxies.

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