Feedback from accreting BH (AGN) is thought to be responsible for the co-evolution of BHs and galaxies. It is likely to be prominent in the most luminous dust-obscured quasars, particularly those containing radio sources too luminous to be powered by starbursts. In order to investigate the feedback mechanism in detail, we select a unique sample containing ~ 200 of the most luminous obscured QSOs by cross-matching the WISE catalog with the FIRST and NVSS radio surveys. We present overall statistics for the observed range of colors and radio/mid-IR flux density ratio. We also present our efforts to understand the physical and evolutionary nature of these extreme feedback candidates using various telescopes such as Magellan, SOAR, Herschel, and ALMA.

ABSTRACT
1. INTRODUCTION
2. HIGHLY OBSCURED QSOs FROM WISE
3. SUPPORTING OBSERVATIONS
REFERENCES

• MINJIN KIM(Korea Astronomy and Space Science Institute, The Observatiories of the Carnegie Institution for Science, KASI-Carnegie Fellow)
• CAROL J. LONSDALE(National Radio astronomy Observatory)
• MARK LACY(National Radio astronomy Observatory)
• AMY KIMBALL(National Radio astronomy Observatory)
• JIM CONDON(National Radio astronomy Observatory)