High-Redshift Clusters in the SpARCS Survey

Details High-Redshift Clusters in the SpARCS Survey High-Redshift Clusters in the SpARCS Survey

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20918002m&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #180.02; Bulletin of the American Astronomical Society,

Astronomy and Astrophysics

Astronomy

Scientific paper

As the densest regions in the universe, galaxy clusters are vital to our understanding of the role that environment plays in galaxy formation and evolution. Unfortunately, the current lack of spectroscopically-confirmed clusters at z > 1 prevents a large systematic study of the early stages of cluster galaxy evolution. In this talk I will discuss a new survey for clusters at z > 1, the Spitzer Adaptation of the Red-sequence Cluster Survey (SpARCS). SpARCS is a 50 sq deg z-band imaging survey in the Spitzer SWIRE fields designed to detect galaxy clusters at 1 < z < 2 using the red-sequence technique. When complete in 2007, SpARCS will have discovered 200 clusters at z > 1, significantly increasing the total number of clusters in this redshift range. I will present some of the first rich, high-redshift candidates from the survey as well as preliminary results from Gemini, Magellan and HST followup of cluster candidates.

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