The symbiosis of AGN activity and galaxy formation

According to galaxy formation models, cluster ellipticals formed in high densityregions through hierarchical merging of gas rich subcomponents. In localellipticals, the strong correlation observed between black hole and bulge massimplies that galaxy formation is inextricably linked to the build up ofsupermassive black holes. We have found 6 high redshift, Xray luminous, butheavily absorbed AGN, embedded in strong bursts of star formation revealed inthe submillimetre. Our SCUBA survey shows that the immediate vicinities of theseobjects contain large overdensities of ultraluminous starforming galaxieswhich will evolve to form clusters. Here we propose to use XMMNewton to observethe early evolutionary phases of QSOs in these protoclusters. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]