NOAO >   Observing Info >   Approved Programs >   2014A-0421

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Proposal Information for 2014A-0421


PI: Mark Brodwin, University of Missouri-Kansas City, brodwinm@umkc.edu
Address: Department of Physics and Astronomy, University of Missouri-Kansas City, 5110 Rockhill Road, Kansas City, MO, 64110, USA

CoI: Dan Gettings, U Florida
CoI: Anthony Gonzalez, U Florida
CoI: Adam Stanford, UC Davis
CoI: Peter Eisenhardt, JPL
CoI: Daniel Stern, JPL
CoI: Dominika Wylezalek, ESO

Title: Massive Distant Clusters of WISE Survey (MaDCoWS)

Abstract: The Massive Distant Clusters of WISE Survey (MaDCoWS) is a comprehensive search of the full extragalactic sky designed to detect and characterize the most massive galaxy clusters at 0.9 < z < 1.4, with the ultimate goal of studying galaxy formation and evolution in the most massive galaxy clusters at z 1 and beyond. Our team has developed a modified version of the cluster detection algorithm developed by Papovich (2008) that employs color selection in the two bluest WISE bands (3.4 and 4.6 um) to isolate galaxies at z > 1 and identify clusters as overdensities of L* galaxies at these redshifts. The technique has been applied to the full WISE data set, and follow-up imaging and spectroscopy in recent semesters have demonstrated the success of this approach. Recent Spitzer/IRAC imaging has allowed us to efficiently identify the most massive subset of the MaDCoWS survey - these are the most massive z > 1 clusters in the Northern spring sky. Here we propose GMOS imaging observations of the 25 IRAC-richest MaDCoWS. We further propose to spectroscopically observe the 5 clusters with the richest, most evolved red-sequences in order to study the most extreme systems.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2014A-0421

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