Benny TRAKHTENBROT
(Weizmann Institute of Science)
I will present our team's efforts to probe the link between fast-growing SMBHs and their host galaxies at z~5, focusing on a sample of 40 luminous AGNs.
These sources represent an epoch of fast, nearly Eddington-limited growth of some of the most massive black holes known to date.
New Herschel/SPIRE observations suggest extremely high L_FIR in ~25% of the sources, corresponding to SFRs of 2800-5600 M_Sun/yr - comparable to the most extreme sub-mm galaxies.
A stacking analysis of the remaining sources provides a mean SFR of 700+/-150 M_Sun/yr.
I will discuss how these results can be linked to major mergers.
I will also describe a follow-up campaign to probe the cosmic environments of these unique systems.