The Spitzer Adaptation of the Red-Sequence Cluster Survey

Details The Spitzer Adaptation of the Red-Sequence Cluster Survey The Spitzer Adaptation of the Red-Sequence Cluster Survey

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...211.7805m&link_type=abstract

American Astronomical Society, AAS Meeting #211, #78.05; Bulletin of the American Astronomical Society, Vol. 39, p.869

Astronomy and Astrophysics

Astronomy

Scientific paper

Recent advances in wide-field imaging capabilities at both optical and NIR wavelengths have ushered in an exciting era for high redshift galaxy cluster searches. Combined optical-NIR photometric surveys are now making the once-challenging discovery of clusters at z > 1 an almost commonplace occurance. In this talk I will discuss the Spitzer Adaptation of the Red-sequence Cluster Survey (SpARCS). SpARCS is a deep, z'-band imaging survey of the Spitzer SWIRE Legacy fields. With an area of 50 deg^2, SpARCS is the widest-area of the ongoing optical-NIR searches and probes sufficient volume to return the first significant sample of massive clusters at z > 1.5. The first 23 deg^2 of survey data have returned hundreds of z > 1 cluster candidates. Of these, approximately 70 are rich clusters with estimated masses greater than 10^14 M_sun. I will present some newly spectroscopically-confirmed rich clusters at z > 1 and discuss implications for their star formation histories.

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