Submm-bright QSOs at z ∼ 2: Signposts of co-evolution at high z
2013
Centre for Astrophysics Research, U. Hertfordshire, United KingdomE-mail: J.A.Stevens@herts.ac.uk, j.cao-orjales@herts.ac.ukWe have assembled a sample of 5 X-ray and submm-luminous z ˘ 2 QSOs which are thereforeboth growing their central black holes through accretion and forming stars copiously at a crit-ical epoch. Hence, they are good laboratories to investigate the co-evolution of star formationand AGN. We have performed a preliminary analysis of the AGN and SF contributions to theirUV-to-FIR SEDs, fitting them with simple direct (disk), reprocessed (torus) and star formationcomponents. All three are required by the data and hence we confirm that these objects are un-dergoing strong star formation in their host galaxies at rates 500-2000 M =y. Estimaes of theircovering factors are between about 30 and 90%. In the future, we will assess the dependence ofthese results on the particular models used for the components and relate their observed prop-erties to the intrinsice of the central engine and the SF material, as well as their relevance forAGN-galaxy coevolution.Nuclei of Seyfert galaxies and QSOs - Central engine & conditions of star formationNovember 6-8, 2012Max-Planck-Insitut fur Radioastronomie (MPIfR), Bonn, Germany
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