An X-ray Cluster at Redshift 2.156?

Abstract

We present X-ray observations of the narrow line radio galaxy 1138−262 at z = 2.156 with the High Resolution Imager (HRI) on ROSAT. Observations at other wave-bands, and in particular extremely high values of Faraday rotation of the polarized radio emission, suggest that the 1138−262 radio source is in a dense environment, perhaps a hot, cluster-type… (More)

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