Physics
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30844j&link_type=abstract
Spitzer Proposal ID #30844
Physics
Scientific paper
Super star clusters are one of the most extreme star forming environments in the universe, and an important mode of star formation during the cataclysmic events of galaxy merging and assembly. These clusters are also important agents of galactic evolution in the local universe, and can have violently disruptive effects on their host galaxies. Despite the importance of super star clusters throughout the universe, the physical conditions and environments required for their formation are almost completely unconstrained by existing observations. Based on a recently completed radio survey, we have identified a number of candidate extremely young (natal) super star clusters in a sample of nearby starburst galaxies. These sources are still embedded in their natal dust cocoons. We are proposing to add archival Spitzer data to our radio results in order to construct the SEDs of these thermal sources and determine their physical properties. By combining the radio, Spitzer mid-infrared, and near-IR data with 3-D radiation transfer codes, our proposed program will address critical issues related to the birth and early evolution of super star clusters. Using IRAC and MIPS imaging along with IRS spectroscopy, we will investigate the properties of the birth environments, the physical parameters of the embedded stellar clusters and their natal cocoons, and the timescales involved in their formation. The results from this project will ultimately provide insight into star formation and galactic evolution throughout the universe.
Gilbert Andrea
Johnson Kelsey
Reines Amy
Vacca William
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