NOAO >   Observing Info >   Approved Programs >   2006A-0237

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Proposal Information for 2006A-0237


PI: Roy R. Gal, University of Virginia, rg8j@virginia.edu
Address: Dept. of Astronomy, PO Box 3818, Charlottesville, VA 22903, USA

CoI: Lori Lubin, University of California, Davis
CoI: Gordon Squires, Spitzer Science Center
CoI: Lin Yan, Spitzer Science Center

Title: Building a Supercluster: The Stellar Content of the Cl1604 Supercluster at z=0.9

Abstract: Clusters are accurate tracers of the large scale structure in the local Universe. They form at the nodes of filaments, growing through the continuous accretion of individual galaxies and groups from the surrounding field. Thus, observations of large-scale structures at high redshift (z~ 1) provide strong constraints on the formation and evolution of galaxies in a wide range of environments. One of the best studied of these structures is the Cl1604 supercluster at z=0.9, consisting of a dozen clusters. We propose to map this supercluster in the near-infrared with FLAMINGOS in order to examine the galaxy stellar masses and constrain their star formation histories in environments spanning a factor of 400 in local density.


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