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The Spitzer High Redshift Radio Galaxy Survey
Carlos De Breuck, Nick Seymour, Daniel Stern +8
We present results from a comprehensive imaging survey of 70 radio galaxies at redshifts 1<z<5.2 using all three cameras onboard the Spitzer Space Telescope. The resulting spectral…
Obscured Starburst Activity in High Redshift Clusters and Groups
Dale D. Kocevski, Brian C. Lemaux, Lori M. Lubin +6
Using Spitzer-MIPS 24um imaging and Keck spectroscopy we examine the nature of the obscured star forming population in three clusters and three groups at z~0.9. These six systems a…
Spectroscopic Confirmation of Three Red-Sequence Selected Galaxy Clusters at z=0.87, 1.16 and 1.21 from the SpARCS Survey
Ricardo Demarco, Gillian Wilson, Adam Muzzin +6
The Spitzer Adaptation of the Red-sequence Cluster Survey (SpARCS) is a z'-passband imaging survey of the 50 deg^2 Spitzer SWIRE Legacy fields, designed with the primary aim of cre…
The environments of z~1 Active Galactic Nuclei at 3.6um
J. T. Falder, J. A. Stevens, Matt J. Jarvis +6
We present an analysis of a large sample of AGN environments at z~1 using stacked Spitzer data at 3.6um. The sample contains type-1 and type-2 AGN in the form of quasars and radio…