CfA OIR Division Lunch Talks
Thursday, July 10, 2008, 12:30 pm, Pratt Conference Room

Possible Cluster Around 3C 270.1

Mr. Frank Heymann (ESO)

We are studying the environment of the complete sample of 60 high-z 3CR sources at 3.6 to 24 microns with the Spitzer Space Telescope. Here we present first cluster signatures obtained for the z=1.5 quasar 3C270.1, when combining the Spitzer maps with ground-based optical/near-infrared images from the 6.5-m MMT and with the Chandra map. Properties of the high-z cluster galaxy candidates and implications for the cluster formation are discussed.