XMM-Newton Proposal 02044008

Computer Science

Scientific paper

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6C1232+39, 4C23.56, 8C1435+635, Tx1243+036, 3C239, 4C60.07, 4C28.58, Mg2141+192, Xmm-Newton Proposal 02044008

Scientific paper

We have completed a sub-mm survey of powerful high redshift radio galaxies. This revealed strong evolution in the mean sub-mm luminosity with redshift, with a particularly wide variance in sub-mm properties beyond z3. This range of evolutionary states may reflect the formation epoch of the host spheroids. Here we seek XMM-Newton observations of a carefully chosen sample to investigate whether the most luminous sub-mm sources contain the most heavily absorbed AGN. This will test the popular evolutionary models for the early stages of massive galaxy formation (Silk & Rees 1998, Fabian 1999), which predict a transition from sub-mm source (with a hidden AGN) to a visible quasar. A secondary goal is to search for hot gas associated with early proto-cluster environments.

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