| Description |
AGN-powered feedback of energy and momentum via radiation pressure (quasar mode) on interstellar dust and jet momentum (radio mode) from a supermassive black hole (BH) into its host galaxy regulates the evolution of both the BH and the galaxy. Feedback is likely to be strongest in the most luminous dust-obscured QSOs, particularly those containing radio sources too luminous to be powered by starbursts. We selected a unique sample containing 147 of the most luminous obscured QSOs in the universe by identifying strong mid-infrared sources from the WISE survey covering more than half the sky having (1) convex mid-infrared spectra and (2) bright NVSS radio counterparts. The goal of our multi-telescope program is to understand the physical and evolutionary nature of these extreme feedback candidates. We have high priority (top decile) ALMA Cycle0 time for the southern sources in the sample for imaging at 345GHz, and SOAR time to obtain redshifts. This proposal requests 47.6 hours of PACS and SPIRE time to determine the relative warm to cool dust luminosities in these 147 sources, key observations for determining the relative AGN and starburst luminosties, and understanding the evolution stages, of these likely transition objects. Our goals are to discover the most obscured and powerful BHs throughout their main epoch of formation, and to test and constrain the roles of radio and radiative feedback in the quenching of star formation and the establishment of the BH-spheroid relations. |
