GAS AND DUST IN HIGH REDSHIFT QUASARS

摘要

We review recent progress in the study of dust and gas in optically luminous, radio-quiet high-2 quasars (QSOs). Highlights include the detection of thermal dust continuum in ≈ 80 1 < z < 6.4 quasars, and molecular line data in 11 of them including J1148+5152, the farthest known QSO at z = 6.42, indicating the presence of massive reservoirs of dust and molecular gas. The importance of ALMA and Herschel in these studies is underlined.