Princeton University Wunch Talk

Submillimeter to radio observations of (mostly) optically selected high-redshift QSOs show them to be luminous thermal infrared emittors. A number of arguments suggest that their far-infrared emission arises from starbursts, thus permitting a real-time look at the AGN-starburst connection. The detection of large masses of molecular gas on kpc scales allows an estimate of the black hole to dynamical mass ratio, which turns out to differ from what is measured in local spheroids. The high heavy element enrichment adds to the puzzle about the nature of these high-redshift QSOs.